Update version for v2.2.1 release

Signed-off-by: Michael Roth <mdroth@linux.vnet.ibm.com>

VERSION

@@ -1 +1 @@
-2.1.92
+2.2.1

arch_init.c

@@ -486,15 +486,23 @@ static void migration_bitmap_sync_range(ram_addr_t start, ram_addr_t length)
 
 
 /* Needs iothread lock! */
+/* Fix me: there are too many global variables used in migration process. */
+static int64_t start_time;
+static int64_t bytes_xfer_prev;
+static int64_t num_dirty_pages_period;
+
+static void migration_bitmap_sync_init(void)
+{
+    start_time = 0;
+    bytes_xfer_prev = 0;
+    num_dirty_pages_period = 0;
+}
 
 static void migration_bitmap_sync(void)
 {
     RAMBlock *block;
     uint64_t num_dirty_pages_init = migration_dirty_pages;
     MigrationState *s = migrate_get_current();
-    static int64_t start_time;
-    static int64_t bytes_xfer_prev;
-    static int64_t num_dirty_pages_period;
     int64_t end_time;
     int64_t bytes_xfer_now;
     static uint64_t xbzrle_cache_miss_prev;
@@ -774,6 +782,7 @@ static int ram_save_setup(QEMUFile *f, void *opaque)
     mig_throttle_on = false;
     dirty_rate_high_cnt = 0;
     bitmap_sync_count = 0;
+    migration_bitmap_sync_init();
 
     if (migrate_use_xbzrle()) {
         XBZRLE_cache_lock();

audio/audio_template.h

@@ -191,9 +191,9 @@ static void glue (audio_pcm_hw_gc_, TYPE) (HW **hwp)
         audio_detach_capture (hw);
 #endif
         QLIST_REMOVE (hw, entries);
+        glue (hw->pcm_ops->fini_, TYPE) (hw);
         glue (s->nb_hw_voices_, TYPE) += 1;
         glue (audio_pcm_hw_free_resources_ ,TYPE) (hw);
-        glue (hw->pcm_ops->fini_, TYPE) (hw);
         g_free (hw);
         *hwp = NULL;
     }

block-migration.c

@@ -653,6 +653,7 @@ static int block_save_iterate(QEMUFile *f, void *opaque)
 {
     int ret;
     int64_t last_ftell = qemu_ftell(f);
+    int64_t delta_ftell;
 
     DPRINTF("Enter save live iterate submitted %d transferred %d\n",
             block_mig_state.submitted, block_mig_state.transferred);
@@ -702,7 +703,14 @@ static int block_save_iterate(QEMUFile *f, void *opaque)
     }
 
     qemu_put_be64(f, BLK_MIG_FLAG_EOS);
-    return qemu_ftell(f) - last_ftell;
+    delta_ftell = qemu_ftell(f) - last_ftell;
+    if (delta_ftell > 0) {
+        return 1;
+    } else if (delta_ftell < 0) {
+        return -1;
+    } else {
+        return 0;
+    }
 }
 
 /* Called with iothread lock taken.  */
@@ -757,8 +765,8 @@ static uint64_t block_save_pending(QEMUFile *f, void *opaque, uint64_t max_size)
                        block_mig_state.read_done * BLOCK_SIZE;
 
     /* Report at least one block pending during bulk phase */
-    if (pending == 0 && !block_mig_state.bulk_completed) {
-        pending = BLOCK_SIZE;
+    if (pending <= max_size && !block_mig_state.bulk_completed) {
+        pending = max_size + BLOCK_SIZE;
     }
     blk_mig_unlock();
     qemu_mutex_unlock_iothread();

block.c

@@ -629,7 +629,7 @@ BlockDriver *bdrv_find_protocol(const char *filename,
     }
 
     if (!path_has_protocol(filename) || !allow_protocol_prefix) {
-        return bdrv_find_format("file");
+        return &bdrv_file;
     }
 
     p = strchr(filename, ':');
@@ -658,12 +658,7 @@ static int find_image_format(BlockDriverState *bs, const char *filename,
 
     /* Return the raw BlockDriver * to scsi-generic devices or empty drives */
     if (bs->sg || !bdrv_is_inserted(bs) || bdrv_getlength(bs) == 0) {
-        drv = bdrv_find_format("raw");
-        if (!drv) {
-            error_setg(errp, "Could not find raw image format");
-            ret = -ENOENT;
-        }
-        *pdrv = drv;
+        *pdrv = &bdrv_raw;
         return ret;
     }
 
@@ -1180,7 +1175,6 @@ int bdrv_open_backing_file(BlockDriverState *bs, QDict *options, Error **errp)
 {
     char *backing_filename = g_malloc0(PATH_MAX);
     int ret = 0;
-    BlockDriver *back_drv = NULL;
     BlockDriverState *backing_hd;
     Error *local_err = NULL;
 
@@ -1213,14 +1207,14 @@ int bdrv_open_backing_file(BlockDriverState *bs, QDict *options, Error **errp)
 
     backing_hd = bdrv_new();
 
-    if (bs->backing_format[0] != '\0') {
-        back_drv = bdrv_find_format(bs->backing_format);
+    if (bs->backing_format[0] != '\0' && !qdict_haskey(options, "driver")) {
+        qdict_put(options, "driver", qstring_from_str(bs->backing_format));
     }
 
     assert(bs->backing_hd == NULL);
     ret = bdrv_open(&backing_hd,
                     *backing_filename ? backing_filename : NULL, NULL, options,
-                    bdrv_backing_flags(bs->open_flags), back_drv, &local_err);
+                    bdrv_backing_flags(bs->open_flags), NULL, &local_err);
     if (ret < 0) {
         bdrv_unref(backing_hd);
         backing_hd = NULL;
@@ -1294,7 +1288,6 @@ int bdrv_append_temp_snapshot(BlockDriverState *bs, int flags, Error **errp)
     /* TODO: extra byte is a hack to ensure MAX_PATH space on Windows. */
     char *tmp_filename = g_malloc0(PATH_MAX + 1);
     int64_t total_size;
-    BlockDriver *bdrv_qcow2;
     QemuOpts *opts = NULL;
     QDict *snapshot_options;
     BlockDriverState *bs_snapshot;
@@ -1319,11 +1312,10 @@ int bdrv_append_temp_snapshot(BlockDriverState *bs, int flags, Error **errp)
         goto out;
     }
 
-    bdrv_qcow2 = bdrv_find_format("qcow2");
-    opts = qemu_opts_create(bdrv_qcow2->create_opts, NULL, 0,
+    opts = qemu_opts_create(bdrv_qcow2.create_opts, NULL, 0,
                             &error_abort);
     qemu_opt_set_number(opts, BLOCK_OPT_SIZE, total_size);
-    ret = bdrv_create(bdrv_qcow2, tmp_filename, opts, &local_err);
+    ret = bdrv_create(&bdrv_qcow2, tmp_filename, opts, &local_err);
     qemu_opts_del(opts);
     if (ret < 0) {
         error_setg_errno(errp, -ret, "Could not create temporary overlay "
@@ -1343,7 +1335,7 @@ int bdrv_append_temp_snapshot(BlockDriverState *bs, int flags, Error **errp)
     bs_snapshot = bdrv_new();
 
     ret = bdrv_open(&bs_snapshot, NULL, NULL, snapshot_options,
-                    flags, bdrv_qcow2, &local_err);
+                    flags, &bdrv_qcow2, &local_err);
     if (ret < 0) {
         error_propagate(errp, local_err);
         goto out;
@@ -5541,6 +5533,18 @@ void bdrv_img_create(const char *filename, const char *fmt,
         return;
     }
 
+    if (!drv->create_opts) {
+        error_setg(errp, "Format driver '%s' does not support image creation",
+                   drv->format_name);
+        return;
+    }
+
+    if (!proto_drv->create_opts) {
+        error_setg(errp, "Protocol driver '%s' does not support image creation",
+                   proto_drv->format_name);
+        return;
+    }
+
     create_opts = qemu_opts_append(create_opts, drv->create_opts);
     create_opts = qemu_opts_append(create_opts, proto_drv->create_opts);
 

block/iscsi.c

@@ -1286,7 +1286,7 @@ static int iscsi_open(BlockDriverState *bs, QDict *options, int flags,
     QemuOpts *opts;
     Error *local_err = NULL;
     const char *filename;
-    int i, ret;
+    int i, ret = 0;
 
     if ((BDRV_SECTOR_SIZE % 512) != 0) {
         error_setg(errp, "iSCSI: Invalid BDRV_SECTOR_SIZE. "

block/nfs.c

@@ -409,6 +409,19 @@ out:
     return ret;
 }
 
+static QemuOptsList nfs_create_opts = {
+    .name = "nfs-create-opts",
+    .head = QTAILQ_HEAD_INITIALIZER(nfs_create_opts.head),
+    .desc = {
+        {
+            .name = BLOCK_OPT_SIZE,
+            .type = QEMU_OPT_SIZE,
+            .help = "Virtual disk size"
+        },
+        { /* end of list */ }
+    }
+};
+
 static int nfs_file_create(const char *url, QemuOpts *opts, Error **errp)
 {
     int ret = 0;
@@ -470,6 +483,8 @@ static BlockDriver bdrv_nfs = {
 
     .instance_size                  = sizeof(NFSClient),
     .bdrv_needs_filename            = true,
+    .create_opts                    = &nfs_create_opts,
+
     .bdrv_has_zero_init             = nfs_has_zero_init,
     .bdrv_get_allocated_file_size   = nfs_get_allocated_file_size,
     .bdrv_truncate                  = nfs_file_truncate,

block/qapi.c

@@ -29,13 +29,6 @@
 #include "qapi/qmp-output-visitor.h"
 #include "qapi/qmp/types.h"
 #include "sysemu/block-backend.h"
-#ifdef __linux__
-#include <linux/fs.h>
-#include <sys/ioctl.h>
-#ifndef FS_NOCOW_FL
-#define FS_NOCOW_FL                     0x00800000 /* Do not cow file */
-#endif
-#endif
 
 BlockDeviceInfo *bdrv_block_device_info(BlockDriverState *bs)
 {
@@ -180,9 +173,6 @@ void bdrv_query_image_info(BlockDriverState *bs,
     int ret;
     Error *err = NULL;
     ImageInfo *info;
-#ifdef __linux__
-    int fd, attr;
-#endif
 
     size = bdrv_getlength(bs);
     if (size < 0) {
@@ -212,18 +202,6 @@ void bdrv_query_image_info(BlockDriverState *bs,
     info->format_specific     = bdrv_get_specific_info(bs);
     info->has_format_specific = info->format_specific != NULL;
 
-#ifdef __linux__
-    /* get NOCOW info */
-    fd = qemu_open(bs->filename, O_RDONLY | O_NONBLOCK);
-    if (fd >= 0) {
-        if (ioctl(fd, FS_IOC_GETFLAGS, &attr) == 0 && (attr & FS_NOCOW_FL)) {
-            info->has_nocow = true;
-            info->nocow = true;
-        }
-        qemu_close(fd);
-    }
-#endif
-
     backing_filename = bs->backing_file;
     if (backing_filename[0] != '\0') {
         info->backing_filename = g_strdup(backing_filename);
@@ -655,8 +633,4 @@ void bdrv_image_info_dump(fprintf_function func_fprintf, void *f,
         func_fprintf(f, "Format specific information:\n");
         bdrv_image_info_specific_dump(func_fprintf, f, info->format_specific);
     }
-
-    if (info->has_nocow && info->nocow) {
-        func_fprintf(f, "NOCOW flag: set\n");
-    }
 }

block/qcow2-cluster.c

@@ -1263,7 +1263,7 @@ int qcow2_alloc_cluster_offset(BlockDriverState *bs, uint64_t offset,
 
 again:
     start = offset;
-    remaining = *num << BDRV_SECTOR_BITS;
+    remaining = (uint64_t)*num << BDRV_SECTOR_BITS;
     cluster_offset = 0;
     *host_offset = 0;
     cur_bytes = 0;

block/qcow2.c

@@ -117,7 +117,7 @@ static int qcow2_read_extensions(BlockDriverState *bs, uint64_t start_offset,
 #ifdef DEBUG_EXT
         printf("ext.magic = 0x%x\n", ext.magic);
 #endif
-        if (ext.len > end_offset - offset) {
+        if (offset > end_offset || ext.len > end_offset - offset) {
             error_setg(errp, "Header extension too large");
             return -EINVAL;
         }
@@ -1428,10 +1428,23 @@ static void qcow2_close(BlockDriverState *bs)
     s->l1_table = NULL;
 
     if (!(bs->open_flags & BDRV_O_INCOMING)) {
-        qcow2_cache_flush(bs, s->l2_table_cache);
-        qcow2_cache_flush(bs, s->refcount_block_cache);
+        int ret1, ret2;
 
-        qcow2_mark_clean(bs);
+        ret1 = qcow2_cache_flush(bs, s->l2_table_cache);
+        ret2 = qcow2_cache_flush(bs, s->refcount_block_cache);
+
+        if (ret1) {
+            error_report("Failed to flush the L2 table cache: %s",
+                         strerror(-ret1));
+        }
+        if (ret2) {
+            error_report("Failed to flush the refcount block cache: %s",
+                         strerror(-ret2));
+        }
+
+        if (!ret1 && !ret2) {
+            qcow2_mark_clean(bs);
+        }
     }
 
     qcow2_cache_destroy(bs, s->l2_table_cache);
@@ -1915,10 +1928,9 @@ static int qcow2_create2(const char *filename, int64_t total_size,
      * refcount of the cluster that is occupied by the header and the refcount
      * table)
      */
-    BlockDriver* drv = bdrv_find_format("qcow2");
-    assert(drv != NULL);
     ret = bdrv_open(&bs, filename, NULL, NULL,
-        BDRV_O_RDWR | BDRV_O_CACHE_WB | BDRV_O_NO_FLUSH, drv, &local_err);
+                    BDRV_O_RDWR | BDRV_O_CACHE_WB | BDRV_O_NO_FLUSH,
+                    &bdrv_qcow2, &local_err);
     if (ret < 0) {
         error_propagate(errp, local_err);
         goto out;
@@ -1970,7 +1982,7 @@ static int qcow2_create2(const char *filename, int64_t total_size,
     /* Reopen the image without BDRV_O_NO_FLUSH to flush it before returning */
     ret = bdrv_open(&bs, filename, NULL, NULL,
                     BDRV_O_RDWR | BDRV_O_CACHE_WB | BDRV_O_NO_BACKING,
-                    drv, &local_err);
+                    &bdrv_qcow2, &local_err);
     if (local_err) {
         error_propagate(errp, local_err);
         goto out;
@@ -2150,8 +2162,7 @@ static int qcow2_write_compressed(BlockDriverState *bs, int64_t sector_num,
         /* align end of file to a sector boundary to ease reading with
            sector based I/Os */
         cluster_offset = bdrv_getlength(bs->file);
-        bdrv_truncate(bs->file, cluster_offset);
-        return 0;
+        return bdrv_truncate(bs->file, cluster_offset);
     }
 
     if (nb_sectors != s->cluster_sectors) {
@@ -2847,7 +2858,7 @@ static QemuOptsList qcow2_create_opts = {
     }
 };
 
-static BlockDriver bdrv_qcow2 = {
+BlockDriver bdrv_qcow2 = {
     .format_name        = "qcow2",
     .instance_size      = sizeof(BDRVQcowState),
     .bdrv_probe         = qcow2_probe,

block/raw-posix.c

@@ -446,6 +446,7 @@ static int raw_open_common(BlockDriverState *bs, QDict *options,
     }
 
     if (fstat(s->fd, &st) < 0) {
+        ret = -errno;
         error_setg_errno(errp, errno, "Could not stat file");
         goto fail;
     }
@@ -1684,7 +1685,7 @@ static QemuOptsList raw_create_opts = {
     }
 };
 
-static BlockDriver bdrv_file = {
+BlockDriver bdrv_file = {
     .format_name = "file",
     .protocol_name = "file",
     .instance_size = sizeof(BDRVRawState),

block/raw-win32.c

@@ -540,7 +540,7 @@ static QemuOptsList raw_create_opts = {
     }
 };
 
-static BlockDriver bdrv_file = {
+BlockDriver bdrv_file = {
     .format_name	= "file",
     .protocol_name	= "file",
     .instance_size	= sizeof(BDRVRawState),

block/raw_bsd.c

@@ -173,7 +173,7 @@ static int raw_probe(const uint8_t *buf, int buf_size, const char *filename)
     return 1;
 }
 
-static BlockDriver bdrv_raw = {
+BlockDriver bdrv_raw = {
     .format_name          = "raw",
     .bdrv_probe           = &raw_probe,
     .bdrv_reopen_prepare  = &raw_reopen_prepare,

block/vpc.c

@@ -801,6 +801,7 @@ static int vpc_create(const char *filename, QemuOpts *opts, Error **errp)
     }
 
     total_sectors = (int64_t) cyls * heads * secs_per_cyl;
+    total_size = total_sectors * BDRV_SECTOR_SIZE;
 
     /* Prepare the Hard Disk Footer */
     memset(buf, 0, 1024);
@@ -822,13 +823,8 @@ static int vpc_create(const char *filename, QemuOpts *opts, Error **errp)
     /* Version of Virtual PC 2007 */
     footer->major = cpu_to_be16(0x0005);
     footer->minor = cpu_to_be16(0x0003);
-    if (disk_type == VHD_DYNAMIC) {
-        footer->orig_size = cpu_to_be64(total_sectors * 512);
-        footer->size = cpu_to_be64(total_sectors * 512);
-    } else {
-        footer->orig_size = cpu_to_be64(total_size);
-        footer->size = cpu_to_be64(total_size);
-    }
+    footer->orig_size = cpu_to_be64(total_size);
+    footer->size = cpu_to_be64(total_size);
     footer->cyls = cpu_to_be16(cyls);
     footer->heads = heads;
     footer->secs_per_cyl = secs_per_cyl;

block/vvfat.c

@@ -2917,6 +2917,12 @@ static int enable_write_target(BDRVVVFATState *s, Error **errp)
     }
 
     bdrv_qcow = bdrv_find_format("qcow");
+    if (!bdrv_qcow) {
+        error_setg(errp, "Failed to locate qcow driver");
+        ret = -ENOENT;
+        goto err;
+    }
+
     opts = qemu_opts_create(bdrv_qcow->create_opts, NULL, 0, &error_abort);
     qemu_opt_set_number(opts, BLOCK_OPT_SIZE, s->sector_count * 512);
     qemu_opt_set(opts, BLOCK_OPT_BACKING_FILE, "fat:");

cpus.c

@@ -372,15 +372,19 @@ static void icount_warp_rt(void *opaque)
 void qtest_clock_warp(int64_t dest)
 {
     int64_t clock = qemu_clock_get_ns(QEMU_CLOCK_VIRTUAL);
+    AioContext *aio_context;
     assert(qtest_enabled());
+    aio_context = qemu_get_aio_context();
     while (clock < dest) {
         int64_t deadline = qemu_clock_deadline_ns_all(QEMU_CLOCK_VIRTUAL);
         int64_t warp = qemu_soonest_timeout(dest - clock, deadline);
+
         seqlock_write_lock(&timers_state.vm_clock_seqlock);
         timers_state.qemu_icount_bias += warp;
         seqlock_write_unlock(&timers_state.vm_clock_seqlock);
 
         qemu_clock_run_timers(QEMU_CLOCK_VIRTUAL);
+        timerlist_run_timers(aio_context->tlg.tl[QEMU_CLOCK_VIRTUAL]);
         clock = qemu_clock_get_ns(QEMU_CLOCK_VIRTUAL);
     }
     qemu_clock_notify(QEMU_CLOCK_VIRTUAL);

exec.c

@@ -434,7 +434,7 @@ static int cpu_common_pre_load(void *opaque)
 {
     CPUState *cpu = opaque;
 
-    cpu->exception_index = 0;
+    cpu->exception_index = -1;
 
     return 0;
 }
@@ -443,7 +443,7 @@ static bool cpu_common_exception_index_needed(void *opaque)
 {
     CPUState *cpu = opaque;
 
-    return cpu->exception_index != 0;
+    return tcg_enabled() && cpu->exception_index != -1;
 }
 
 static const VMStateDescription vmstate_cpu_common_exception_index = {
@@ -909,14 +909,15 @@ static int subpage_register (subpage_t *mmio, uint32_t start, uint32_t end,
                              uint16_t section);
 static subpage_t *subpage_init(AddressSpace *as, hwaddr base);
 
-static void *(*phys_mem_alloc)(size_t size) = qemu_anon_ram_alloc;
+static void *(*phys_mem_alloc)(size_t size, uint64_t *align) =
+                               qemu_anon_ram_alloc;
 
 /*
  * Set a custom physical guest memory alloator.
  * Accelerators with unusual needs may need this.  Hopefully, we can
  * get rid of it eventually.
  */
-void phys_mem_set_alloc(void *(*alloc)(size_t))
+void phys_mem_set_alloc(void *(*alloc)(size_t, uint64_t *align))
 {
     phys_mem_alloc = alloc;
 }
@@ -1098,6 +1099,7 @@ static void *file_ram_alloc(RAMBlock *block,
         error_propagate(errp, local_err);
         goto error;
     }
+    block->mr->align = hpagesize;
 
     if (memory < hpagesize) {
         error_setg(errp, "memory size 0x" RAM_ADDR_FMT " must be equal to "
@@ -1309,7 +1311,8 @@ static ram_addr_t ram_block_add(RAMBlock *new_block, Error **errp)
         if (xen_enabled()) {
             xen_ram_alloc(new_block->offset, new_block->length, new_block->mr);
         } else {
-            new_block->host = phys_mem_alloc(new_block->length);
+            new_block->host = phys_mem_alloc(new_block->length,
+                                             &new_block->mr->align);
             if (!new_block->host) {
                 error_setg_errno(errp, errno,
                                  "cannot set up guest memory '%s'",

hw/arm/virt.c

@@ -389,7 +389,7 @@ static void create_uart(const VirtBoardInfo *vbi, qemu_irq *pic)
     qemu_fdt_setprop(vbi->fdt, nodename, "clock-names",
                          clocknames, sizeof(clocknames));
 
-    qemu_fdt_setprop_string(vbi->fdt, "/chosen", "linux,stdout-path", nodename);
+    qemu_fdt_setprop_string(vbi->fdt, "/chosen", "stdout-path", nodename);
     g_free(nodename);
 }
 

hw/audio/sb16.c

@@ -999,7 +999,7 @@ static IO_READ_PROTO (dsp_read)
         retval = (!s->out_data_len || s->highspeed) ? 0 : 0x80;
         if (s->mixer_regs[0x82] & 1) {
             ack = 1;
-            s->mixer_regs[0x82] &= 1;
+            s->mixer_regs[0x82] &= ~1;
             qemu_irq_lower (s->pic);
         }
         break;
@@ -1008,7 +1008,7 @@ static IO_READ_PROTO (dsp_read)
         retval = 0xff;
         if (s->mixer_regs[0x82] & 2) {
             ack = 1;
-            s->mixer_regs[0x82] &= 2;
+            s->mixer_regs[0x82] &= ~2;
             qemu_irq_lower (s->pic);
         }
         break;

hw/char/serial.c

@@ -350,10 +350,24 @@ static void serial_ioport_write(void *opaque, hwaddr addr, uint64_t val,
                      s->poll_msl = 0;
                 }
             }
-            if (s->lsr & UART_LSR_THRE) {
+
+            /* Turning on the THRE interrupt on IER can trigger the interrupt
+             * if LSR.THRE=1, even if it had been masked before by reading IIR.
+             * This is not in the datasheet, but Windows relies on it.  It is
+             * unclear if THRE has to be resampled every time THRI becomes
+             * 1, or only on the rising edge.  Bochs does the latter, and Windows
+             * always toggles IER to all zeroes and back to all ones.  But for
+             * now leave it as it has always been in QEMU.
+             *
+             * If IER.THRI is zero, thr_ipending is not used.  Set it to zero
+             * so that the thr_ipending subsection is not migrated.
+             */
+            if ((s->ier & UART_IER_THRI) && (s->lsr & UART_LSR_THRE)) {
                 s->thr_ipending = 1;
-                serial_update_irq(s);
+            } else {
+                s->thr_ipending = 0;
             }
+            serial_update_irq(s);
         }
         break;
     case 2:
@@ -623,8 +637,17 @@ static int serial_post_load(void *opaque, int version_id)
 static bool serial_thr_ipending_needed(void *opaque)
 {
     SerialState *s = opaque;
-    bool expected_value = ((s->iir & UART_IIR_ID) == UART_IIR_THRI);
-    return s->thr_ipending != expected_value;
+
+    if (s->ier & UART_IER_THRI) {
+        bool expected_value = ((s->iir & UART_IIR_ID) == UART_IIR_THRI);
+        return s->thr_ipending != expected_value;
+    } else {
+        /* LSR.THRE will be sampled again when the interrupt is
+         * enabled.  thr_ipending is not used in this case, do
+         * not migrate it.
+         */
+        return false;
+    }
 }
 
 const VMStateDescription vmstate_serial_thr_ipending = {

hw/core/loader.c

@@ -811,12 +811,12 @@ err:
     return -1;
 }
 
-void *rom_add_blob(const char *name, const void *blob, size_t len,
+ram_addr_t rom_add_blob(const char *name, const void *blob, size_t len,
                    hwaddr addr, const char *fw_file_name,
                    FWCfgReadCallback fw_callback, void *callback_opaque)
 {
     Rom *rom;
-    void *data = NULL;
+    ram_addr_t ret = RAM_ADDR_MAX;
 
     rom           = g_malloc0(sizeof(*rom));
     rom->name     = g_strdup(name);
@@ -828,11 +828,13 @@ void *rom_add_blob(const char *name, const void *blob, size_t len,
     rom_insert(rom);
     if (fw_file_name && fw_cfg) {
         char devpath[100];
+        void *data;
 
         snprintf(devpath, sizeof(devpath), "/rom@%s", fw_file_name);
 
         if (rom_file_has_mr) {
             data = rom_set_mr(rom, OBJECT(fw_cfg), devpath);
+            ret = memory_region_get_ram_addr(rom->mr);
         } else {
             data = rom->data;
         }
@@ -841,7 +843,7 @@ void *rom_add_blob(const char *name, const void *blob, size_t len,
                                  fw_callback, callback_opaque,
                                  data, rom->romsize);
     }
-    return data;
+    return ret;
 }
 
 /* This function is specific for elf program because we don't need to allocate

hw/core/qdev.c

@@ -935,19 +935,32 @@ void qdev_alias_all_properties(DeviceState *target, Object *source)
     } while (class != object_class_by_name(TYPE_DEVICE));
 }
 
-int qdev_build_hotpluggable_device_list(Object *obj, void *opaque)
+static int qdev_add_hotpluggable_device(Object *obj, void *opaque)
 {
     GSList **list = opaque;
-    DeviceState *dev = DEVICE(obj);
+    DeviceState *dev = (DeviceState *)object_dynamic_cast(OBJECT(obj),
+                                                          TYPE_DEVICE);
+
+    if (dev == NULL) {
+        return 0;
+    }
 
     if (dev->realized && object_property_get_bool(obj, "hotpluggable", NULL)) {
         *list = g_slist_append(*list, dev);
     }
 
-    object_child_foreach(obj, qdev_build_hotpluggable_device_list, opaque);
     return 0;
 }
 
+GSList *qdev_build_hotpluggable_device_list(Object *peripheral)
+{
+    GSList *list = NULL;
+
+    object_child_foreach(peripheral, qdev_add_hotpluggable_device, &list);
+
+    return list;
+}
+
 static bool device_get_realized(Object *obj, Error **errp)
 {
     DeviceState *dev = DEVICE(obj);

hw/display/cirrus_vga.c

@@ -173,20 +173,6 @@
 
 #define CIRRUS_PNPMMIO_SIZE         0x1000
 
-#define BLTUNSAFE(s) \
-    ( \
-        ( /* check dst is within bounds */ \
-            (s)->cirrus_blt_height * ABS((s)->cirrus_blt_dstpitch) \
-                + ((s)->cirrus_blt_dstaddr & (s)->cirrus_addr_mask) > \
-                    (s)->vga.vram_size \
-        ) || \
-        ( /* check src is within bounds */ \
-            (s)->cirrus_blt_height * ABS((s)->cirrus_blt_srcpitch) \
-                + ((s)->cirrus_blt_srcaddr & (s)->cirrus_addr_mask) > \
-                    (s)->vga.vram_size \
-        ) \
-    )
-
 struct CirrusVGAState;
 typedef void (*cirrus_bitblt_rop_t) (struct CirrusVGAState *s,
                                      uint8_t * dst, const uint8_t * src,
@@ -279,6 +265,50 @@ static void cirrus_update_memory_access(CirrusVGAState *s);
  *
  ***************************************/
 
+static bool blit_region_is_unsafe(struct CirrusVGAState *s,
+                                  int32_t pitch, int32_t addr)
+{
+    if (pitch < 0) {
+        int64_t min = addr
+            + ((int64_t)s->cirrus_blt_height-1) * pitch;
+        int32_t max = addr
+            + s->cirrus_blt_width;
+        if (min < 0 || max >= s->vga.vram_size) {
+            return true;
+        }
+    } else {
+        int64_t max = addr
+            + ((int64_t)s->cirrus_blt_height-1) * pitch
+            + s->cirrus_blt_width;
+        if (max >= s->vga.vram_size) {
+            return true;
+        }
+    }
+    return false;
+}
+
+static bool blit_is_unsafe(struct CirrusVGAState *s)
+{
+    /* should be the case, see cirrus_bitblt_start */
+    assert(s->cirrus_blt_width > 0);
+    assert(s->cirrus_blt_height > 0);
+
+    if (s->cirrus_blt_width > CIRRUS_BLTBUFSIZE) {
+        return true;
+    }
+
+    if (blit_region_is_unsafe(s, s->cirrus_blt_dstpitch,
+                              s->cirrus_blt_dstaddr & s->cirrus_addr_mask)) {
+        return true;
+    }
+    if (blit_region_is_unsafe(s, s->cirrus_blt_srcpitch,
+                              s->cirrus_blt_srcaddr & s->cirrus_addr_mask)) {
+        return true;
+    }
+
+    return false;
+}
+
 static void cirrus_bitblt_rop_nop(CirrusVGAState *s,
                                   uint8_t *dst,const uint8_t *src,
                                   int dstpitch,int srcpitch,
@@ -636,7 +666,7 @@ static int cirrus_bitblt_common_patterncopy(CirrusVGAState * s,
 
     dst = s->vga.vram_ptr + (s->cirrus_blt_dstaddr & s->cirrus_addr_mask);
 
-    if (BLTUNSAFE(s))
+    if (blit_is_unsafe(s))
         return 0;
 
     (*s->cirrus_rop) (s, dst, src,
@@ -654,8 +684,9 @@ static int cirrus_bitblt_solidfill(CirrusVGAState *s, int blt_rop)
 {
     cirrus_fill_t rop_func;
 
-    if (BLTUNSAFE(s))
+    if (blit_is_unsafe(s)) {
         return 0;
+    }
     rop_func = cirrus_fill[rop_to_index[blt_rop]][s->cirrus_blt_pixelwidth - 1];
     rop_func(s, s->vga.vram_ptr + (s->cirrus_blt_dstaddr & s->cirrus_addr_mask),
              s->cirrus_blt_dstpitch,
@@ -752,7 +783,7 @@ static void cirrus_do_copy(CirrusVGAState *s, int dst, int src, int w, int h)
 
 static int cirrus_bitblt_videotovideo_copy(CirrusVGAState * s)
 {
-    if (BLTUNSAFE(s))
+    if (blit_is_unsafe(s))
         return 0;
 
     cirrus_do_copy(s, s->cirrus_blt_dstaddr - s->vga.start_addr,

hw/i386/acpi-build.c

@@ -56,6 +56,7 @@
 
 #include "qapi/qmp/qint.h"
 #include "qom/qom-qobject.h"
+#include "exec/ram_addr.h"
 
 /* These are used to size the ACPI tables for -M pc-i440fx-1.7 and
  * -M pc-i440fx-2.0.  Even if the actual amount of AML generated grows
@@ -1269,8 +1270,7 @@ acpi_build_srat_memory(AcpiSratMemoryAffinity *numamem, uint64_t base,
 }
 
 static void
-build_srat(GArray *table_data, GArray *linker,
-           AcpiCpuInfo *cpu, PcGuestInfo *guest_info)
+build_srat(GArray *table_data, GArray *linker, PcGuestInfo *guest_info)
 {
     AcpiSystemResourceAffinityTable *srat;
     AcpiSratProcessorAffinity *core;
@@ -1300,11 +1300,7 @@ build_srat(GArray *table_data, GArray *linker,
         core->proximity_lo = curnode;
         memset(core->proximity_hi, 0, 3);
         core->local_sapic_eid = 0;
-        if (test_bit(i, cpu->found_cpus)) {
-            core->flags = cpu_to_le32(1);
-        } else {
-            core->flags = cpu_to_le32(0);
-        }
+        core->flags = cpu_to_le32(1);
     }
 
 
@@ -1511,7 +1507,7 @@ static inline void acpi_build_tables_cleanup(AcpiBuildTables *tables, bool mfre)
 typedef
 struct AcpiBuildState {
     /* Copy of table in RAM (for patching). */
-    uint8_t *table_ram;
+    ram_addr_t table_ram;
     uint32_t table_size;
     /* Is table patched? */
     uint8_t patched;
@@ -1622,7 +1618,7 @@ void acpi_build(PcGuestInfo *guest_info, AcpiBuildTables *tables)
     }
     if (guest_info->numa_nodes) {
         acpi_add_table(table_offsets, tables->table_data);
-        build_srat(tables->table_data, tables->linker, &cpu, guest_info);
+        build_srat(tables->table_data, tables->linker, guest_info);
     }
     if (acpi_get_mcfg(&mcfg)) {
         acpi_add_table(table_offsets, tables->table_data);
@@ -1716,9 +1712,12 @@ static void acpi_build_update(void *build_opaque, uint32_t offset)
     acpi_build(build_state->guest_info, &tables);
 
     assert(acpi_data_len(tables.table_data) == build_state->table_size);
-    memcpy(build_state->table_ram, tables.table_data->data,
+    memcpy(qemu_get_ram_ptr(build_state->table_ram), tables.table_data->data,
            build_state->table_size);
 
+    cpu_physical_memory_set_dirty_range_nocode(build_state->table_ram,
+                                               build_state->table_size);
+
     acpi_build_tables_cleanup(&tables, true);
 }
 
@@ -1728,7 +1727,7 @@ static void acpi_build_reset(void *build_opaque)
     build_state->patched = 0;
 }
 
-static void *acpi_add_rom_blob(AcpiBuildState *build_state, GArray *blob,
+static ram_addr_t acpi_add_rom_blob(AcpiBuildState *build_state, GArray *blob,
                                const char *name)
 {
     return rom_add_blob(name, blob->data, acpi_data_len(blob), -1, name,
@@ -1777,6 +1776,7 @@ void acpi_setup(PcGuestInfo *guest_info)
     /* Now expose it all to Guest */
     build_state->table_ram = acpi_add_rom_blob(build_state, tables.table_data,
                                                ACPI_BUILD_TABLE_FILE);
+    assert(build_state->table_ram != RAM_ADDR_MAX);
     build_state->table_size = acpi_data_len(tables.table_data);
 
     acpi_add_rom_blob(NULL, tables.linker, "etc/table-loader");

hw/i386/acpi-dsdt-cpu-hotplug.dsl

@@ -94,6 +94,7 @@ Scope(\_SB) {
 
     Device(CPU_HOTPLUG_RESOURCE_DEVICE) {
         Name(_HID, EisaId("PNP0A06"))
+        Name(_UID, "CPU hotplug resources")
 
         Name(_CRS, ResourceTemplate() {
             IO(Decode16, CPU_STATUS_BASE, CPU_STATUS_BASE, 0, CPU_STATUS_LEN)

hw/i386/acpi-dsdt-mem-hotplug.dsl

@@ -0,0 +1,176 @@
+/*
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, see <http://www.gnu.org/licenses/>.
+ */
+
+    External(MEMORY_SLOT_NOTIFY_METHOD, MethodObj)
+
+    Scope(\_SB.PCI0) {
+        Device(MEMORY_HOTPLUG_DEVICE) {
+            Name(_HID, "PNP0A06")
+            Name(_UID, "Memory hotplug resources")
+            External(MEMORY_SLOTS_NUMBER, IntObj)
+
+            /* Memory hotplug IO registers */
+            OperationRegion(MEMORY_HOTPLUG_IO_REGION, SystemIO,
+                            ACPI_MEMORY_HOTPLUG_BASE,
+                            ACPI_MEMORY_HOTPLUG_IO_LEN)
+
+            Name(_CRS, ResourceTemplate() {
+                IO(Decode16, ACPI_MEMORY_HOTPLUG_BASE, ACPI_MEMORY_HOTPLUG_BASE,
+                   0, ACPI_MEMORY_HOTPLUG_IO_LEN, IO)
+            })
+
+            Method(_STA, 0) {
+                If (LEqual(MEMORY_SLOTS_NUMBER, Zero)) {
+                    Return(0x0)
+                }
+                /* present, functioning, decoding, not shown in UI */
+                Return(0xB)
+            }
+
+            Field(MEMORY_HOTPLUG_IO_REGION, DWordAcc, NoLock, Preserve) {
+                MEMORY_SLOT_ADDR_LOW, 32,  // read only
+                MEMORY_SLOT_ADDR_HIGH, 32, // read only
+                MEMORY_SLOT_SIZE_LOW, 32,  // read only
+                MEMORY_SLOT_SIZE_HIGH, 32, // read only
+                MEMORY_SLOT_PROXIMITY, 32, // read only
+            }
+            Field(MEMORY_HOTPLUG_IO_REGION, ByteAcc, NoLock, Preserve) {
+                Offset(20),
+                MEMORY_SLOT_ENABLED,  1, // 1 if enabled, read only
+                MEMORY_SLOT_INSERT_EVENT, 1, // (read) 1 if has a insert event. (write) 1 to clear event
+            }
+
+            Mutex (MEMORY_SLOT_LOCK, 0)
+            Field (MEMORY_HOTPLUG_IO_REGION, DWordAcc, NoLock, Preserve) {
+                MEMORY_SLOT_SLECTOR, 32,  // DIMM selector, write only
+                MEMORY_SLOT_OST_EVENT, 32,  // _OST event code, write only
+                MEMORY_SLOT_OST_STATUS, 32,  // _OST status code, write only
+            }
+
+            Method(MEMORY_SLOT_SCAN_METHOD, 0) {
+                If (LEqual(MEMORY_SLOTS_NUMBER, Zero)) {
+                     Return(Zero)
+                }
+
+                Store(Zero, Local0) // Mem devs iterrator
+                Acquire(MEMORY_SLOT_LOCK, 0xFFFF)
+                while (LLess(Local0, MEMORY_SLOTS_NUMBER)) {
+                    Store(Local0, MEMORY_SLOT_SLECTOR) // select Local0 DIMM
+                    If (LEqual(MEMORY_SLOT_INSERT_EVENT, One)) { // Memory device needs check
+                        MEMORY_SLOT_NOTIFY_METHOD(Local0, 1)
+                        Store(1, MEMORY_SLOT_INSERT_EVENT)
+                    }
+                    // TODO: handle memory eject request
+                    Add(Local0, One, Local0) // goto next DIMM
+                }
+                Release(MEMORY_SLOT_LOCK)
+                Return(One)
+            }
+
+            Method(MEMORY_SLOT_STATUS_METHOD, 1) {
+                Store(Zero, Local0)
+
+                Acquire(MEMORY_SLOT_LOCK, 0xFFFF)
+                Store(ToInteger(Arg0), MEMORY_SLOT_SLECTOR) // select DIMM
+
+                If (LEqual(MEMORY_SLOT_ENABLED, One)) {
+                    Store(0xF, Local0)
+                }
+
+                Release(MEMORY_SLOT_LOCK)
+                Return(Local0)
+            }
+
+            Method(MEMORY_SLOT_CRS_METHOD, 1, Serialized) {
+                Acquire(MEMORY_SLOT_LOCK, 0xFFFF)
+                Store(ToInteger(Arg0), MEMORY_SLOT_SLECTOR) // select DIMM
+
+                Name(MR64, ResourceTemplate() {
+                    QWordMemory(ResourceProducer, PosDecode, MinFixed, MaxFixed,
+                    Cacheable, ReadWrite,
+                    0x0000000000000000,        // Address Space Granularity
+                    0x0000000000000000,        // Address Range Minimum
+                    0xFFFFFFFFFFFFFFFE,        // Address Range Maximum
+                    0x0000000000000000,        // Address Translation Offset
+                    0xFFFFFFFFFFFFFFFF,        // Address Length
+                    ,, MW64, AddressRangeMemory, TypeStatic)
+                })
+
+                CreateDWordField(MR64, 14, MINL)
+                CreateDWordField(MR64, 18, MINH)
+                CreateDWordField(MR64, 38, LENL)
+                CreateDWordField(MR64, 42, LENH)
+                CreateDWordField(MR64, 22, MAXL)
+                CreateDWordField(MR64, 26, MAXH)
+
+                Store(MEMORY_SLOT_ADDR_HIGH, MINH)
+                Store(MEMORY_SLOT_ADDR_LOW, MINL)
+                Store(MEMORY_SLOT_SIZE_HIGH, LENH)
+                Store(MEMORY_SLOT_SIZE_LOW, LENL)
+
+                // 64-bit math: MAX = MIN + LEN - 1
+                Add(MINL, LENL, MAXL)
+                Add(MINH, LENH, MAXH)
+                If (LLess(MAXL, MINL)) {
+                    Add(MAXH, One, MAXH)
+                }
+                If (LLess(MAXL, One)) {
+                    Subtract(MAXH, One, MAXH)
+                }
+                Subtract(MAXL, One, MAXL)
+
+                If (LEqual(MAXH, Zero)){
+                    Name(MR32, ResourceTemplate() {
+                        DWordMemory(ResourceProducer, PosDecode, MinFixed, MaxFixed,
+                        Cacheable, ReadWrite,
+                        0x00000000,        // Address Space Granularity
+                        0x00000000,        // Address Range Minimum
+                        0xFFFFFFFE,        // Address Range Maximum
+                        0x00000000,        // Address Translation Offset
+                        0xFFFFFFFF,        // Address Length
+                        ,, MW32, AddressRangeMemory, TypeStatic)
+                    })
+                    CreateDWordField(MR32, MW32._MIN, MIN)
+                    CreateDWordField(MR32, MW32._MAX, MAX)
+                    CreateDWordField(MR32, MW32._LEN, LEN)
+                    Store(MINL, MIN)
+                    Store(MAXL, MAX)
+                    Store(LENL, LEN)
+
+                    Release(MEMORY_SLOT_LOCK)
+                    Return(MR32)
+                }
+
+                Release(MEMORY_SLOT_LOCK)
+                Return(MR64)
+            }
+
+            Method(MEMORY_SLOT_PROXIMITY_METHOD, 1) {
+                Acquire(MEMORY_SLOT_LOCK, 0xFFFF)
+                Store(ToInteger(Arg0), MEMORY_SLOT_SLECTOR) // select DIMM
+                Store(MEMORY_SLOT_PROXIMITY, Local0)
+                Release(MEMORY_SLOT_LOCK)
+                Return(Local0)
+            }
+
+            Method(MEMORY_SLOT_OST_METHOD, 4) {
+                Acquire(MEMORY_SLOT_LOCK, 0xFFFF)
+                Store(ToInteger(Arg0), MEMORY_SLOT_SLECTOR) // select DIMM
+                Store(Arg1, MEMORY_SLOT_OST_EVENT)
+                Store(Arg2, MEMORY_SLOT_OST_STATUS)
+                Release(MEMORY_SLOT_LOCK)
+            }
+        } // Device()
+    } // Scope()

hw/i386/acpi-dsdt.dsl

@@ -297,13 +297,12 @@ DefinitionBlock (
 #include "hw/acpi/pc-hotplug.h"
 #define CPU_STATUS_BASE PIIX4_CPU_HOTPLUG_IO_BASE
 #include "acpi-dsdt-cpu-hotplug.dsl"
+#include "acpi-dsdt-mem-hotplug.dsl"
 
 
 /****************************************************************
  * General purpose events
  ****************************************************************/
-    External(\_SB.PCI0.MEMORY_HOTPLUG_DEVICE.MEMORY_SLOT_SCAN_METHOD, MethodObj)
-
     Scope(\_GPE) {
         Name(_HID, "ACPI0006")
 

hw/i386/acpi-dsdt.hex.generated

@@ -3,12 +3,12 @@ static unsigned char AcpiDsdtAmlCode[] = {
 0x53,
 0x44,
 0x54,
-0xf7,
-0xa,
+0x25,
+0xe,
 0x0,
 0x0,
 0x1,
-0x1f,
+0x6e,
 0x42,
 0x58,
 0x50,
@@ -31,9 +31,9 @@ static unsigned char AcpiDsdtAmlCode[] = {
 0x4e,
 0x54,
 0x4c,
-0x28,
-0x5,
-0x10,
+0x14,
+0x2,
+0x14,
 0x20,
 0x10,
 0x49,
@@ -2318,8 +2318,8 @@ static unsigned char AcpiDsdtAmlCode[] = {
 0x53,
 0x1,
 0x10,
-0x42,
-0x11,
+0x4f,
+0x12,
 0x5f,
 0x53,
 0x42,
@@ -2551,7 +2551,8 @@ static unsigned char AcpiDsdtAmlCode[] = {
 0x60,
 0x5b,
 0x82,
-0x29,
+0x46,
+0x4,
 0x50,
 0x52,
 0x45,
@@ -2568,6 +2569,34 @@ static unsigned char AcpiDsdtAmlCode[] = {
 0x6,
 0x8,
 0x5f,
+0x55,
+0x49,
+0x44,
+0xd,
+0x43,
+0x50,
+0x55,
+0x20,
+0x68,
+0x6f,
+0x74,
+0x70,
+0x6c,
+0x75,
+0x67,
+0x20,
+0x72,
+0x65,
+0x73,
+0x6f,
+0x75,
+0x72,
+0x63,
+0x65,
+0x73,
+0x0,
+0x8,
+0x5f,
 0x43,
 0x52,
 0x53,
@@ -2593,6 +2622,791 @@ static unsigned char AcpiDsdtAmlCode[] = {
 0xa,
 0xb,
 0x10,
+0x40,
+0x31,
+0x2e,
+0x5f,
+0x53,
+0x42,
+0x5f,
+0x50,
+0x43,
+0x49,
+0x30,
+0x5b,
+0x82,
+0x43,
+0x30,
+0x4d,
+0x48,
+0x50,
+0x44,
+0x8,
+0x5f,
+0x48,
+0x49,
+0x44,
+0xd,
+0x50,
+0x4e,
+0x50,
+0x30,
+0x41,
+0x30,
+0x36,
+0x0,
+0x8,
+0x5f,
+0x55,
+0x49,
+0x44,
+0xd,
+0x4d,
+0x65,
+0x6d,
+0x6f,
+0x72,
+0x79,
+0x20,
+0x68,
+0x6f,
+0x74,
+0x70,
+0x6c,
+0x75,
+0x67,
+0x20,
+0x72,
+0x65,
+0x73,
+0x6f,
+0x75,
+0x72,
+0x63,
+0x65,
+0x73,
+0x0,
+0x5b,
+0x80,
+0x48,
+0x50,
+0x4d,
+0x52,
+0x1,
+0xb,
+0x0,
+0xa,
+0xa,
+0x18,
+0x8,
+0x5f,
+0x43,
+0x52,
+0x53,
+0x11,
+0xd,
+0xa,
+0xa,
+0x47,
+0x1,
+0x0,
+0xa,
+0x0,
+0xa,
+0x0,
+0x18,
+0x79,
+0x0,
+0x14,
+0x13,
+0x5f,
+0x53,
+0x54,
+0x41,
+0x0,
+0xa0,
+0x9,
+0x93,
+0x4d,
+0x44,
+0x4e,
+0x52,
+0x0,
+0xa4,
+0x0,
+0xa4,
+0xa,
+0xb,
+0x5b,
+0x81,
+0x1f,
+0x48,
+0x50,
+0x4d,
+0x52,
+0x3,
+0x4d,
+0x52,
+0x42,
+0x4c,
+0x20,
+0x4d,
+0x52,
+0x42,
+0x48,
+0x20,
+0x4d,
+0x52,
+0x4c,
+0x4c,
+0x20,
+0x4d,
+0x52,
+0x4c,
+0x48,
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 0x45,
 0xd,
 0x5f,

hw/i386/kvm/apic.c

@@ -171,13 +171,16 @@ static const MemoryRegionOps kvm_apic_io_ops = {
     .endianness = DEVICE_NATIVE_ENDIAN,
 };
 
+static void kvm_apic_reset(APICCommonState *s)
+{
+    /* Not used by KVM, which uses the CPU mp_state instead.  */
+    s->wait_for_sipi = 0;
+}
+
 static void kvm_apic_realize(DeviceState *dev, Error **errp)
 {
     APICCommonState *s = APIC_COMMON(dev);
 
-    /* Not used by KVM, which uses the CPU mp_state instead.  */
-    s->wait_for_sipi = 0;
-
     memory_region_init_io(&s->io_memory, NULL, &kvm_apic_io_ops, s, "kvm-apic-msi",
                           APIC_SPACE_SIZE);
 
@@ -191,6 +194,7 @@ static void kvm_apic_class_init(ObjectClass *klass, void *data)
     APICCommonClass *k = APIC_COMMON_CLASS(klass);
 
     k->realize = kvm_apic_realize;
+    k->reset = kvm_apic_reset;
     k->set_base = kvm_apic_set_base;
     k->set_tpr = kvm_apic_set_tpr;
     k->get_tpr = kvm_apic_get_tpr;

hw/i386/pc.c

@@ -61,6 +61,7 @@
 #include "hw/mem/pc-dimm.h"
 #include "trace.h"
 #include "qapi/visitor.h"
+#include "qapi-visit.h"
 
 /* debug PC/ISA interrupts */
 //#define DEBUG_IRQ
@@ -1247,6 +1248,11 @@ FWCfgState *pc_memory_init(MachineState *machine,
         pcms->hotplug_memory_base =
             ROUND_UP(0x100000000ULL + above_4g_mem_size, 1ULL << 30);
 
+        if (pcms->enforce_aligned_dimm) {
+            /* size hotplug region assuming 1G page max alignment per slot */
+            hotplug_mem_size += (1ULL << 30) * machine->ram_slots;
+        }
+
         if ((pcms->hotplug_memory_base + hotplug_mem_size) <
             hotplug_mem_size) {
             error_report("unsupported amount of maximum memory: " RAM_ADDR_FMT,
@@ -1545,6 +1551,37 @@ void qemu_register_pc_machine(QEMUMachine *m)
     g_free(name);
 }
 
+static int pc_dimm_count(Object *obj, void *opaque)
+{
+    int *count = opaque;
+
+    if (object_dynamic_cast(obj, TYPE_PC_DIMM)) {
+        (*count)++;
+    }
+
+    object_child_foreach(obj, pc_dimm_count, opaque);
+    return 0;
+}
+
+static int pc_existing_dimms_capacity(Object *obj, void *opaque)
+{
+    Error *local_err = NULL;
+    uint64_t *size = opaque;
+
+    if (object_dynamic_cast(obj, TYPE_PC_DIMM)) {
+        (*size) += object_property_get_int(obj, PC_DIMM_SIZE_PROP, &local_err);
+
+        if (local_err) {
+            qerror_report_err(local_err);
+            error_free(local_err);
+            return 1;
+        }
+    }
+
+    object_child_foreach(obj, pc_dimm_count, opaque);
+    return 0;
+}
+
 static void pc_dimm_plug(HotplugHandler *hotplug_dev,
                          DeviceState *dev, Error **errp)
 {
@@ -1556,20 +1593,40 @@ static void pc_dimm_plug(HotplugHandler *hotplug_dev,
     PCDIMMDevice *dimm = PC_DIMM(dev);
     PCDIMMDeviceClass *ddc = PC_DIMM_GET_CLASS(dimm);
     MemoryRegion *mr = ddc->get_memory_region(dimm);
-    uint64_t addr = object_property_get_int(OBJECT(dimm), PC_DIMM_ADDR_PROP,
-                                            &local_err);
+    uint64_t existing_dimms_capacity = 0;
+    uint64_t align = TARGET_PAGE_SIZE;
+    uint64_t addr;
+
+    addr = object_property_get_int(OBJECT(dimm), PC_DIMM_ADDR_PROP, &local_err);
     if (local_err) {
         goto out;
     }
 
+    if (memory_region_get_alignment(mr) && pcms->enforce_aligned_dimm) {
+        align = memory_region_get_alignment(mr);
+    }
+
     addr = pc_dimm_get_free_addr(pcms->hotplug_memory_base,
                                  memory_region_size(&pcms->hotplug_memory),
-                                 !addr ? NULL : &addr,
+                                 !addr ? NULL : &addr, align,
                                  memory_region_size(mr), &local_err);
     if (local_err) {
         goto out;
     }
 
+    if (pc_existing_dimms_capacity(OBJECT(machine), &existing_dimms_capacity)) {
+        error_setg(&local_err, "failed to get total size of existing DIMMs");
+        goto out;
+    }
+
+    if (existing_dimms_capacity + memory_region_size(mr) >
+        machine->maxram_size - machine->ram_size) {
+        error_setg(&local_err, "not enough space, currently 0x%" PRIx64
+                   " in use of total 0x" RAM_ADDR_FMT,
+                   existing_dimms_capacity, machine->maxram_size);
+        goto out;
+    }
+
     object_property_set_int(OBJECT(dev), addr, PC_DIMM_ADDR_PROP, &local_err);
     if (local_err) {
         goto out;
@@ -1598,6 +1655,11 @@ static void pc_dimm_plug(HotplugHandler *hotplug_dev,
         goto out;
     }
 
+    if (kvm_enabled() && !kvm_has_free_slot(machine)) {
+        error_setg(&local_err, "hypervisor has no free memory slots left");
+        goto out;
+    }
+
     memory_region_add_subregion(&pcms->hotplug_memory,
                                 addr - pcms->hotplug_memory_base, mr);
     vmstate_register_ram(mr, dev);
@@ -1711,18 +1773,28 @@ static void pc_machine_set_max_ram_below_4g(Object *obj, Visitor *v,
     pcms->max_ram_below_4g = value;
 }
 
-static bool pc_machine_get_vmport(Object *obj, Error **errp)
+static void pc_machine_get_vmport(Object *obj, Visitor *v, void *opaque,
+                                  const char *name, Error **errp)
 {
     PCMachineState *pcms = PC_MACHINE(obj);
+    OnOffAuto vmport = pcms->vmport;
 
-    return pcms->vmport;
+    visit_type_OnOffAuto(v, &vmport, name, errp);
 }
 
-static void pc_machine_set_vmport(Object *obj, bool value, Error **errp)
+static void pc_machine_set_vmport(Object *obj, Visitor *v, void *opaque,
+                                  const char *name, Error **errp)
 {
     PCMachineState *pcms = PC_MACHINE(obj);
 
-    pcms->vmport = value;
+    visit_type_OnOffAuto(v, &pcms->vmport, name, errp);
+}
+
+static bool pc_machine_get_aligned_dimm(Object *obj, Error **errp)
+{
+    PCMachineState *pcms = PC_MACHINE(obj);
+
+    return pcms->enforce_aligned_dimm;
 }
 
 static void pc_machine_initfn(Object *obj)
@@ -1737,11 +1809,17 @@ static void pc_machine_initfn(Object *obj)
                         pc_machine_get_max_ram_below_4g,
                         pc_machine_set_max_ram_below_4g,
                         NULL, NULL, NULL);
-    pcms->vmport = !xen_enabled();
-    object_property_add_bool(obj, PC_MACHINE_VMPORT,
-                             pc_machine_get_vmport,
-                             pc_machine_set_vmport,
-                             NULL);
+
+    pcms->vmport = ON_OFF_AUTO_AUTO;
+    object_property_add(obj, PC_MACHINE_VMPORT, "OnOffAuto",
+                        pc_machine_get_vmport,
+                        pc_machine_set_vmport,
+                        NULL, NULL, NULL);
+
+    pcms->enforce_aligned_dimm = true;
+    object_property_add_bool(obj, PC_MACHINE_ENFORCE_ALIGNED_DIMM,
+                             pc_machine_get_aligned_dimm,
+                             NULL, NULL);
 }
 
 static void pc_machine_class_init(ObjectClass *oc, void *data)

hw/i386/pc_piix.c

@@ -234,9 +234,14 @@ static void pc_init1(MachineState *machine,
 
     pc_vga_init(isa_bus, pci_enabled ? pci_bus : NULL);
 
+    assert(pc_machine->vmport != ON_OFF_AUTO_MAX);
+    if (pc_machine->vmport == ON_OFF_AUTO_AUTO) {
+        pc_machine->vmport = xen_enabled() ? ON_OFF_AUTO_OFF : ON_OFF_AUTO_ON;
+    }
+
     /* init basic PC hardware */
     pc_basic_device_init(isa_bus, gsi, &rtc_state, &floppy,
-                         !pc_machine->vmport, 0x4);
+                         (pc_machine->vmport != ON_OFF_AUTO_ON), 0x4);
 
     pc_nic_init(isa_bus, pci_bus);
 
@@ -305,10 +310,12 @@ static void pc_init_pci(MachineState *machine)
 
 static void pc_compat_2_1(MachineState *machine)
 {
+    PCMachineState *pcms = PC_MACHINE(machine);
     smbios_uuid_encoded = false;
     x86_cpu_compat_set_features("coreduo", FEAT_1_ECX, CPUID_EXT_VMX, 0);
     x86_cpu_compat_set_features("core2duo", FEAT_1_ECX, CPUID_EXT_VMX, 0);
     x86_cpu_compat_kvm_no_autodisable(FEAT_8000_0001_ECX, CPUID_EXT3_SVM);
+    pcms->enforce_aligned_dimm = false;
 }
 
 static void pc_compat_2_0(MachineState *machine)

hw/i386/pc_q35.c

@@ -242,9 +242,14 @@ static void pc_q35_init(MachineState *machine)
 
     pc_register_ferr_irq(gsi[13]);
 
+    assert(pc_machine->vmport != ON_OFF_AUTO_MAX);
+    if (pc_machine->vmport == ON_OFF_AUTO_AUTO) {
+        pc_machine->vmport = xen_enabled() ? ON_OFF_AUTO_OFF : ON_OFF_AUTO_ON;
+    }
+
     /* init basic PC hardware */
     pc_basic_device_init(isa_bus, gsi, &rtc_state, &floppy,
-                         !pc_machine->vmport, 0xff0104);
+                         (pc_machine->vmport != ON_OFF_AUTO_ON), 0xff0104);
 
     /* connect pm stuff to lpc */
     ich9_lpc_pm_init(lpc);
@@ -284,6 +289,9 @@ static void pc_q35_init(MachineState *machine)
 
 static void pc_compat_2_1(MachineState *machine)
 {
+    PCMachineState *pcms = PC_MACHINE(machine);
+
+    pcms->enforce_aligned_dimm = false;
     smbios_uuid_encoded = false;
     x86_cpu_compat_set_features("coreduo", FEAT_1_ECX, CPUID_EXT_VMX, 0);
     x86_cpu_compat_set_features("core2duo", FEAT_1_ECX, CPUID_EXT_VMX, 0);

hw/i386/q35-acpi-dsdt.dsl

@@ -405,13 +405,12 @@ DefinitionBlock (
 #include "hw/acpi/pc-hotplug.h"
 #define CPU_STATUS_BASE ICH9_CPU_HOTPLUG_IO_BASE
 #include "acpi-dsdt-cpu-hotplug.dsl"
+#include "acpi-dsdt-mem-hotplug.dsl"
 
 
 /****************************************************************
  * General purpose events
  ****************************************************************/
-    External(\_SB.PCI0.MEMORY_HOTPLUG_DEVICE.MEMORY_SLOT_SCAN_METHOD, MethodObj)
-
     Scope(\_GPE) {
         Name(_HID, "ACPI0006")
 

hw/i386/q35-acpi-dsdt.hex.generated

@@ -3,12 +3,12 @@ static unsigned char Q35AcpiDsdtAmlCode[] = {
 0x53,
 0x44,
 0x54,
-0xe5,
-0x1c,
+0x13,
+0x20,
 0x0,
 0x0,
 0x1,
-0xb7,
+0x2,
 0x42,
 0x58,
 0x50,
@@ -31,9 +31,9 @@ static unsigned char Q35AcpiDsdtAmlCode[] = {
 0x4e,
 0x54,
 0x4c,
-0x15,
-0x11,
-0x13,
+0x14,
+0x2,
+0x14,
 0x20,
 0x10,
 0x49,
@@ -6959,8 +6959,8 @@ static unsigned char Q35AcpiDsdtAmlCode[] = {
 0x53,
 0x1,
 0x10,
-0x42,
-0x11,
+0x4f,
+0x12,
 0x5f,
 0x53,
 0x42,
@@ -7192,7 +7192,8 @@ static unsigned char Q35AcpiDsdtAmlCode[] = {
 0x60,
 0x5b,
 0x82,
-0x29,
+0x46,
+0x4,
 0x50,
 0x52,
 0x45,
@@ -7209,6 +7210,34 @@ static unsigned char Q35AcpiDsdtAmlCode[] = {
 0x6,
 0x8,
 0x5f,
+0x55,
+0x49,
+0x44,
+0xd,
+0x43,
+0x50,
+0x55,
+0x20,
+0x68,
+0x6f,
+0x74,
+0x70,
+0x6c,
+0x75,
+0x67,
+0x20,
+0x72,
+0x65,
+0x73,
+0x6f,
+0x75,
+0x72,
+0x63,
+0x65,
+0x73,
+0x0,
+0x8,
+0x5f,
 0x43,
 0x52,
 0x53,
@@ -7234,6 +7263,791 @@ static unsigned char Q35AcpiDsdtAmlCode[] = {
 0xa,
 0xb,
 0x10,
+0x40,
+0x31,
+0x2e,
+0x5f,
+0x53,
+0x42,
+0x5f,
+0x50,
+0x43,
+0x49,
+0x30,
+0x5b,
+0x82,
+0x43,
+0x30,
+0x4d,
+0x48,
+0x50,
+0x44,
+0x8,
+0x5f,
+0x48,
+0x49,
+0x44,
+0xd,
+0x50,
+0x4e,
+0x50,
+0x30,
+0x41,
+0x30,
+0x36,
+0x0,
+0x8,
+0x5f,
+0x55,
+0x49,
+0x44,
+0xd,
+0x4d,
+0x65,
+0x6d,
+0x6f,
+0x72,
+0x79,
+0x20,
+0x68,
+0x6f,
+0x74,
+0x70,
+0x6c,
+0x75,
+0x67,
+0x20,
+0x72,
+0x65,
+0x73,
+0x6f,
+0x75,
+0x72,
+0x63,
+0x65,
+0x73,
+0x0,
+0x5b,
+0x80,
+0x48,
+0x50,
+0x4d,
+0x52,
+0x1,
+0xb,
+0x0,
+0xa,
+0xa,
+0x18,
+0x8,
+0x5f,
+0x43,
+0x52,
+0x53,
+0x11,
+0xd,
+0xa,
+0xa,
+0x47,
+0x1,
+0x0,
+0xa,
+0x0,
+0xa,
+0x0,
+0x18,
+0x79,
+0x0,
+0x14,
+0x13,
+0x5f,
+0x53,
+0x54,
+0x41,
+0x0,
+0xa0,
+0x9,
+0x93,
+0x4d,
+0x44,
+0x4e,
+0x52,
+0x0,
+0xa4,
+0x0,
+0xa4,
+0xa,
+0xb,
+0x5b,
+0x81,
+0x1f,
+0x48,
+0x50,
+0x4d,
+0x52,
+0x3,
+0x4d,
+0x52,
+0x42,
+0x4c,
+0x20,
+0x4d,
+0x52,
+0x42,
+0x48,
+0x20,
+0x4d,
+0x52,
+0x4c,
+0x4c,
+0x20,
+0x4d,
+0x52,
+0x4c,
+0x48,
+0x20,
+0x4d,
+0x50,
+0x58,
+0x5f,
+0x20,
+0x5b,
+0x81,
+0x13,
+0x48,
+0x50,
+0x4d,
+0x52,
+0x1,
+0x0,
+0x40,
+0xa,
+0x4d,
+0x45,
+0x53,
+0x5f,
+0x1,
+0x4d,
+0x49,
+0x4e,
+0x53,
+0x1,
+0x5b,
+0x1,
+0x4d,
+0x4c,
+0x43,
+0x4b,
+0x0,
+0x5b,
+0x81,
+0x15,
+0x48,
+0x50,
+0x4d,
+0x52,
+0x3,
+0x4d,
+0x53,
+0x45,
+0x4c,
+0x20,
+0x4d,
+0x4f,
+0x45,
+0x56,
+0x20,
+0x4d,
+0x4f,
+0x53,
+0x43,
+0x20,
+0x14,
+0x4a,
+0x4,
+0x4d,
+0x53,
+0x43,
+0x4e,
+0x0,
+0xa0,
+0x9,
+0x93,
+0x4d,
+0x44,
+0x4e,
+0x52,
+0x0,
+0xa4,
+0x0,
+0x70,
+0x0,
+0x60,
+0x5b,
+0x23,
+0x4d,
+0x4c,
+0x43,
+0x4b,
+0xff,
+0xff,
+0xa2,
+0x25,
+0x95,
+0x60,
+0x4d,
+0x44,
+0x4e,
+0x52,
+0x70,
+0x60,
+0x4d,
+0x53,
+0x45,
+0x4c,
+0xa0,
+0x13,
+0x93,
+0x4d,
+0x49,
+0x4e,
+0x53,
+0x1,
+0x4d,
+0x54,
+0x46,
+0x59,
+0x60,
+0x1,
+0x70,
+0x1,
+0x4d,
+0x49,
+0x4e,
+0x53,
+0x72,
+0x60,
+0x1,
+0x60,
+0x5b,
+0x27,
+0x4d,
+0x4c,
+0x43,
+0x4b,
+0xa4,
+0x1,
+0x14,
+0x2d,
+0x4d,
+0x52,
+0x53,
+0x54,
+0x1,
+0x70,
+0x0,
+0x60,
+0x5b,
+0x23,
+0x4d,
+0x4c,
+0x43,
+0x4b,
+0xff,
+0xff,
+0x70,
+0x99,
+0x68,
+0x0,
+0x4d,
+0x53,
+0x45,
+0x4c,
+0xa0,
+0xb,
+0x93,
+0x4d,
+0x45,
+0x53,
+0x5f,
+0x1,
+0x70,
+0xa,
+0xf,
+0x60,
+0x5b,
+0x27,
+0x4d,
+0x4c,
+0x43,
+0x4b,
+0xa4,
+0x60,
+0x14,
+0x41,
+0x18,
+0x4d,
+0x43,
+0x52,
+0x53,
+0x9,
+0x5b,
+0x23,
+0x4d,
+0x4c,
+0x43,
+0x4b,
+0xff,
+0xff,
+0x70,
+0x99,
+0x68,
+0x0,
+0x4d,
+0x53,
+0x45,
+0x4c,
+0x8,
+0x4d,
+0x52,
+0x36,
+0x34,
+0x11,
+0x33,
+0xa,
+0x30,
+0x8a,
+0x2b,
+0x0,
+0x0,
+0xc,
+0x3,
+0x0,
+0x0,
+0x0,
+0x0,
+0x0,
+0x0,
+0x0,
+0x0,
+0x0,
+0x0,
+0x0,
+0x0,
+0x0,
+0x0,
+0x0,
+0x0,
+0xfe,
+0xff,
+0xff,
+0xff,
+0xff,
+0xff,
+0xff,
+0xff,
+0x0,
+0x0,
+0x0,
+0x0,
+0x0,
+0x0,
+0x0,
+0x0,
+0xff,
+0xff,
+0xff,
+0xff,
+0xff,
+0xff,
+0xff,
+0xff,
+0x79,
+0x0,
+0x8a,
+0x4d,
+0x52,
+0x36,
+0x34,
+0xa,
+0xe,
+0x4d,
+0x49,
+0x4e,
+0x4c,
+0x8a,
+0x4d,
+0x52,
+0x36,
+0x34,
+0xa,
+0x12,
+0x4d,
+0x49,
+0x4e,
+0x48,
+0x8a,
+0x4d,
+0x52,
+0x36,
+0x34,
+0xa,
+0x26,
+0x4c,
+0x45,
+0x4e,
+0x4c,
+0x8a,
+0x4d,
+0x52,
+0x36,
+0x34,
+0xa,
+0x2a,
+0x4c,
+0x45,
+0x4e,
+0x48,
+0x8a,
+0x4d,
+0x52,
+0x36,
+0x34,
+0xa,
+0x16,
+0x4d,
+0x41,
+0x58,
+0x4c,
+0x8a,
+0x4d,
+0x52,
+0x36,
+0x34,
+0xa,
+0x1a,
+0x4d,
+0x41,
+0x58,
+0x48,
+0x70,
+0x4d,
+0x52,
+0x42,
+0x48,
+0x4d,
+0x49,
+0x4e,
+0x48,
+0x70,
+0x4d,
+0x52,
+0x42,
+0x4c,
+0x4d,
+0x49,
+0x4e,
+0x4c,
+0x70,
+0x4d,
+0x52,
+0x4c,
+0x48,
+0x4c,
+0x45,
+0x4e,
+0x48,
+0x70,
+0x4d,
+0x52,
+0x4c,
+0x4c,
+0x4c,
+0x45,
+0x4e,
+0x4c,
+0x72,
+0x4d,
+0x49,
+0x4e,
+0x4c,
+0x4c,
+0x45,
+0x4e,
+0x4c,
+0x4d,
+0x41,
+0x58,
+0x4c,
+0x72,
+0x4d,
+0x49,
+0x4e,
+0x48,
+0x4c,
+0x45,
+0x4e,
+0x48,
+0x4d,
+0x41,
+0x58,
+0x48,
+0xa0,
+0x14,
+0x95,
+0x4d,
+0x41,
+0x58,
+0x4c,
+0x4d,
+0x49,
+0x4e,
+0x4c,
+0x72,
+0x4d,
+0x41,
+0x58,
+0x48,
+0x1,
+0x4d,
+0x41,
+0x58,
+0x48,
+0xa0,
+0x11,
+0x95,
+0x4d,
+0x41,
+0x58,
+0x4c,
+0x1,
+0x74,
+0x4d,
+0x41,
+0x58,
+0x48,
+0x1,
+0x4d,
+0x41,
+0x58,
+0x48,
+0x74,
+0x4d,
+0x41,
+0x58,
+0x4c,
+0x1,
+0x4d,
+0x41,
+0x58,
+0x4c,
+0xa0,
+0x44,
+0x7,
+0x93,
+0x4d,
+0x41,
+0x58,
+0x48,
+0x0,
+0x8,
+0x4d,
+0x52,
+0x33,
+0x32,
+0x11,
+0x1f,
+0xa,
+0x1c,
+0x87,
+0x17,
+0x0,
+0x0,
+0xc,
+0x3,
+0x0,
+0x0,
+0x0,
+0x0,
+0x0,
+0x0,
+0x0,
+0x0,
+0xfe,
+0xff,
+0xff,
+0xff,
+0x0,
+0x0,
+0x0,
+0x0,
+0xff,
+0xff,
+0xff,
+0xff,
+0x79,
+0x0,
+0x8a,
+0x4d,
+0x52,
+0x33,
+0x32,
+0xa,
+0xa,
+0x4d,
+0x49,
+0x4e,
+0x5f,
+0x8a,
+0x4d,
+0x52,
+0x33,
+0x32,
+0xa,
+0xe,
+0x4d,
+0x41,
+0x58,
+0x5f,
+0x8a,
+0x4d,
+0x52,
+0x33,
+0x32,
+0xa,
+0x16,
+0x4c,
+0x45,
+0x4e,
+0x5f,
+0x70,
+0x4d,
+0x49,
+0x4e,
+0x4c,
+0x4d,
+0x49,
+0x4e,
+0x5f,
+0x70,
+0x4d,
+0x41,
+0x58,
+0x4c,
+0x4d,
+0x41,
+0x58,
+0x5f,
+0x70,
+0x4c,
+0x45,
+0x4e,
+0x4c,
+0x4c,
+0x45,
+0x4e,
+0x5f,
+0x5b,
+0x27,
+0x4d,
+0x4c,
+0x43,
+0x4b,
+0xa4,
+0x4d,
+0x52,
+0x33,
+0x32,
+0x5b,
+0x27,
+0x4d,
+0x4c,
+0x43,
+0x4b,
+0xa4,
+0x4d,
+0x52,
+0x36,
+0x34,
+0x14,
+0x24,
+0x4d,
+0x50,
+0x58,
+0x4d,
+0x1,
+0x5b,
+0x23,
+0x4d,
+0x4c,
+0x43,
+0x4b,
+0xff,
+0xff,
+0x70,
+0x99,
+0x68,
+0x0,
+0x4d,
+0x53,
+0x45,
+0x4c,
+0x70,
+0x4d,
+0x50,
+0x58,
+0x5f,
+0x60,
+0x5b,
+0x27,
+0x4d,
+0x4c,
+0x43,
+0x4b,
+0xa4,
+0x60,
+0x14,
+0x28,
+0x4d,
+0x4f,
+0x53,
+0x54,
+0x4,
+0x5b,
+0x23,
+0x4d,
+0x4c,
+0x43,
+0x4b,
+0xff,
+0xff,
+0x70,
+0x99,
+0x68,
+0x0,
+0x4d,
+0x53,
+0x45,
+0x4c,
+0x70,
+0x69,
+0x4d,
+0x4f,
+0x45,
+0x56,
+0x70,
+0x6a,
+0x4d,
+0x4f,
+0x53,
+0x43,
+0x5b,
+0x27,
+0x4d,
+0x4c,
+0x43,
+0x4b,
+0x10,
 0x42,
 0xa,
 0x5f,

hw/i386/ssdt-mem.hex.generated

@@ -11,7 +11,7 @@ static unsigned char ssdm_mem_aml[] = {
 0x0,
 0x0,
 0x2,
-0x71,
+0x66,
 0x42,
 0x58,
 0x50,
@@ -34,9 +34,9 @@ static unsigned char ssdm_mem_aml[] = {
 0x4e,
 0x54,
 0x4c,
-0x15,
-0x11,
-0x13,
+0x28,
+0x8,
+0x14,
 0x20,
 0x10,
 0x42,

hw/i386/ssdt-misc.dsl

@@ -36,6 +36,8 @@ DefinitionBlock ("ssdt-misc.aml", "SSDT", 0x01, "BXPC", "BXSSDTSUSP", 0x1)
        Name(P1E, Buffer() { 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 })
        ACPI_EXTRACT_NAME_BUFFER8 acpi_pci64_length
        Name(P1L, Buffer() { 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 })
+       ACPI_EXTRACT_NAME_DWORD_CONST ssdt_mctrl_nr_slots
+       Name(MEMORY_SLOTS_NUMBER, 0x12345678)
     }
 
 
@@ -117,167 +119,4 @@ DefinitionBlock ("ssdt-misc.aml", "SSDT", 0x01, "BXPC", "BXSSDTSUSP", 0x1)
             }
         }
     }
-
-    External(MEMORY_SLOT_NOTIFY_METHOD, MethodObj)
-    Scope(\_SB.PCI0) {
-        Device(MEMORY_HOTPLUG_DEVICE) {
-            Name(_HID, "PNP0A06")
-            Name(_UID, "Memory hotplug resources")
-
-            ACPI_EXTRACT_NAME_DWORD_CONST ssdt_mctrl_nr_slots
-            Name(MEMORY_SLOTS_NUMBER, 0x12345678)
-
-            /* Memory hotplug IO registers */
-            OperationRegion(MEMORY_HOTPLUG_IO_REGION, SystemIO,
-                            ACPI_MEMORY_HOTPLUG_BASE,
-                            ACPI_MEMORY_HOTPLUG_IO_LEN)
-
-            Name(_CRS, ResourceTemplate() {
-                IO(Decode16, ACPI_MEMORY_HOTPLUG_BASE, ACPI_MEMORY_HOTPLUG_BASE,
-                   0, ACPI_MEMORY_HOTPLUG_IO_LEN, IO)
-            })
-
-            Method(_STA, 0) {
-                If (LEqual(MEMORY_SLOTS_NUMBER, Zero)) {
-                    Return(0x0)
-                }
-                /* present, functioning, decoding, not shown in UI */
-                Return(0xB)
-            }
-
-            Field(MEMORY_HOTPLUG_IO_REGION, DWordAcc, NoLock, Preserve) {
-                MEMORY_SLOT_ADDR_LOW, 32,  // read only
-                MEMORY_SLOT_ADDR_HIGH, 32, // read only
-                MEMORY_SLOT_SIZE_LOW, 32,  // read only
-                MEMORY_SLOT_SIZE_HIGH, 32, // read only
-                MEMORY_SLOT_PROXIMITY, 32, // read only
-            }
-            Field(MEMORY_HOTPLUG_IO_REGION, ByteAcc, NoLock, Preserve) {
-                Offset(20),
-                MEMORY_SLOT_ENABLED,  1, // 1 if enabled, read only
-                MEMORY_SLOT_INSERT_EVENT, 1, // (read) 1 if has a insert event. (write) 1 to clear event
-            }
-
-            Mutex (MEMORY_SLOT_LOCK, 0)
-            Field (MEMORY_HOTPLUG_IO_REGION, DWordAcc, NoLock, Preserve) {
-                MEMORY_SLOT_SLECTOR, 32,  // DIMM selector, write only
-                MEMORY_SLOT_OST_EVENT, 32,  // _OST event code, write only
-                MEMORY_SLOT_OST_STATUS, 32,  // _OST status code, write only
-            }
-
-            Method(MEMORY_SLOT_SCAN_METHOD, 0) {
-                If (LEqual(MEMORY_SLOTS_NUMBER, Zero)) {
-                     Return(Zero)
-                }
-
-                Store(Zero, Local0) // Mem devs iterrator
-                Acquire(MEMORY_SLOT_LOCK, 0xFFFF)
-                while (LLess(Local0, MEMORY_SLOTS_NUMBER)) {
-                    Store(Local0, MEMORY_SLOT_SLECTOR) // select Local0 DIMM
-                    If (LEqual(MEMORY_SLOT_INSERT_EVENT, One)) { // Memory device needs check
-                        MEMORY_SLOT_NOTIFY_METHOD(Local0, 1)
-                        Store(1, MEMORY_SLOT_INSERT_EVENT)
-                    }
-                    // TODO: handle memory eject request
-                    Add(Local0, One, Local0) // goto next DIMM
-                }
-                Release(MEMORY_SLOT_LOCK)
-                Return(One)
-            }
-
-            Method(MEMORY_SLOT_STATUS_METHOD, 1) {
-                Store(Zero, Local0)
-
-                Acquire(MEMORY_SLOT_LOCK, 0xFFFF)
-                Store(ToInteger(Arg0), MEMORY_SLOT_SLECTOR) // select DIMM
-
-                If (LEqual(MEMORY_SLOT_ENABLED, One)) {
-                    Store(0xF, Local0)
-                }
-
-                Release(MEMORY_SLOT_LOCK)
-                Return(Local0)
-            }
-
-            Method(MEMORY_SLOT_CRS_METHOD, 1, Serialized) {
-                Acquire(MEMORY_SLOT_LOCK, 0xFFFF)
-                Store(ToInteger(Arg0), MEMORY_SLOT_SLECTOR) // select DIMM
-
-                Name(MR64, ResourceTemplate() {
-                    QWordMemory(ResourceProducer, PosDecode, MinFixed, MaxFixed,
-                    Cacheable, ReadWrite,
-                    0x0000000000000000,        // Address Space Granularity
-                    0x0000000000000000,        // Address Range Minimum
-                    0xFFFFFFFFFFFFFFFE,        // Address Range Maximum
-                    0x0000000000000000,        // Address Translation Offset
-                    0xFFFFFFFFFFFFFFFF,        // Address Length
-                    ,, MW64, AddressRangeMemory, TypeStatic)
-                })
-
-                CreateDWordField(MR64, 14, MINL)
-                CreateDWordField(MR64, 18, MINH)
-                CreateDWordField(MR64, 38, LENL)
-                CreateDWordField(MR64, 42, LENH)
-                CreateDWordField(MR64, 22, MAXL)
-                CreateDWordField(MR64, 26, MAXH)
-
-                Store(MEMORY_SLOT_ADDR_HIGH, MINH)
-                Store(MEMORY_SLOT_ADDR_LOW, MINL)
-                Store(MEMORY_SLOT_SIZE_HIGH, LENH)
-                Store(MEMORY_SLOT_SIZE_LOW, LENL)
-
-                // 64-bit math: MAX = MIN + LEN - 1
-                Add(MINL, LENL, MAXL)
-                Add(MINH, LENH, MAXH)
-                If (LLess(MAXL, MINL)) {
-                    Add(MAXH, One, MAXH)
-                }
-                If (LLess(MAXL, One)) {
-                    Subtract(MAXH, One, MAXH)
-                }
-                Subtract(MAXL, One, MAXL)
-
-                If (LEqual(MAXH, Zero)){
-                    Name(MR32, ResourceTemplate() {
-                        DWordMemory(ResourceProducer, PosDecode, MinFixed, MaxFixed,
-                        Cacheable, ReadWrite,
-                        0x00000000,        // Address Space Granularity
-                        0x00000000,        // Address Range Minimum
-                        0xFFFFFFFE,        // Address Range Maximum
-                        0x00000000,        // Address Translation Offset
-                        0xFFFFFFFF,        // Address Length
-                        ,, MW32, AddressRangeMemory, TypeStatic)
-                    })
-                    CreateDWordField(MR32, MW32._MIN, MIN)
-                    CreateDWordField(MR32, MW32._MAX, MAX)
-                    CreateDWordField(MR32, MW32._LEN, LEN)
-                    Store(MINL, MIN)
-                    Store(MAXL, MAX)
-                    Store(LENL, LEN)
-
-                    Release(MEMORY_SLOT_LOCK)
-                    Return(MR32)
-                }
-
-                Release(MEMORY_SLOT_LOCK)
-                Return(MR64)
-            }
-
-            Method(MEMORY_SLOT_PROXIMITY_METHOD, 1) {
-                Acquire(MEMORY_SLOT_LOCK, 0xFFFF)
-                Store(ToInteger(Arg0), MEMORY_SLOT_SLECTOR) // select DIMM
-                Store(MEMORY_SLOT_PROXIMITY, Local0)
-                Release(MEMORY_SLOT_LOCK)
-                Return(Local0)
-            }
-
-            Method(MEMORY_SLOT_OST_METHOD, 4) {
-                Acquire(MEMORY_SLOT_LOCK, 0xFFFF)
-                Store(ToInteger(Arg0), MEMORY_SLOT_SLECTOR) // select DIMM
-                Store(Arg1, MEMORY_SLOT_OST_EVENT)
-                Store(Arg2, MEMORY_SLOT_OST_STATUS)
-                Release(MEMORY_SLOT_LOCK)
-            }
-        } // Device()
-    } // Scope()
 }

hw/i386/ssdt-misc.hex.generated

@@ -2,13 +2,13 @@ static unsigned char acpi_pci64_length[] = {
 0x6f
 };
 static unsigned char acpi_s4_pkg[] = {
-0x8f
+0x99
 };
-static unsigned short ssdt_mctrl_nr_slots[] = {
-0x1aa
+static unsigned char ssdt_mctrl_nr_slots[] = {
+0x7d
 };
 static unsigned char acpi_s3_name[] = {
-0x7c
+0x86
 };
 static unsigned char acpi_pci32_start[] = {
 0x2f
@@ -21,12 +21,12 @@ static unsigned char ssdp_misc_aml[] = {
 0x53,
 0x44,
 0x54,
-0x7e,
-0x4,
+0x6c,
+0x1,
 0x0,
 0x0,
 0x1,
-0x8b,
+0x3,
 0x42,
 0x58,
 0x50,
@@ -49,12 +49,12 @@ static unsigned char ssdp_misc_aml[] = {
 0x4e,
 0x54,
 0x4c,
-0x15,
-0x11,
-0x13,
+0x28,
+0x8,
+0x14,
 0x20,
 0x10,
-0x42,
+0x4c,
 0x5,
 0x5c,
 0x0,
@@ -136,6 +136,16 @@ static unsigned char ssdp_misc_aml[] = {
 0x0,
 0x0,
 0x0,
+0x8,
+0x4d,
+0x44,
+0x4e,
+0x52,
+0xc,
+0x78,
+0x56,
+0x34,
+0x12,
 0x10,
 0x29,
 0x5c,
@@ -370,809 +380,13 @@ static unsigned char ssdp_misc_aml[] = {
 0x49,
 0x4f,
 0x4d,
-0x58,
-0x10,
-0x4b,
-0x31,
-0x5c,
-0x2e,
-0x5f,
-0x53,
-0x42,
-0x5f,
-0x50,
-0x43,
-0x49,
-0x30,
-0x5b,
-0x82,
-0x4d,
-0x30,
-0x4d,
-0x48,
-0x50,
-0x44,
-0x8,
-0x5f,
-0x48,
-0x49,
-0x44,
-0xd,
-0x50,
-0x4e,
-0x50,
-0x30,
-0x41,
-0x30,
-0x36,
-0x0,
-0x8,
-0x5f,
-0x55,
-0x49,
-0x44,
-0xd,
-0x4d,
-0x65,
-0x6d,
-0x6f,
-0x72,
-0x79,
-0x20,
-0x68,
-0x6f,
-0x74,
-0x70,
-0x6c,
-0x75,
-0x67,
-0x20,
-0x72,
-0x65,
-0x73,
-0x6f,
-0x75,
-0x72,
-0x63,
-0x65,
-0x73,
-0x0,
-0x8,
-0x4d,
-0x44,
-0x4e,
-0x52,
-0xc,
-0x78,
-0x56,
-0x34,
-0x12,
-0x5b,
-0x80,
-0x48,
-0x50,
-0x4d,
-0x52,
-0x1,
-0xb,
-0x0,
-0xa,
-0xa,
-0x18,
-0x8,
-0x5f,
-0x43,
-0x52,
-0x53,
-0x11,
-0xd,
-0xa,
-0xa,
-0x47,
-0x1,
-0x0,
-0xa,
-0x0,
-0xa,
-0x0,
-0x18,
-0x79,
-0x0,
-0x14,
-0x13,
-0x5f,
-0x53,
-0x54,
-0x41,
-0x0,
-0xa0,
-0x9,
-0x93,
-0x4d,
-0x44,
-0x4e,
-0x52,
-0x0,
-0xa4,
-0x0,
-0xa4,
-0xa,
-0xb,
-0x5b,
-0x81,
-0x1f,
-0x48,
-0x50,
-0x4d,
-0x52,
-0x3,
-0x4d,
-0x52,
-0x42,
-0x4c,
-0x20,
-0x4d,
-0x52,
-0x42,
-0x48,
-0x20,
-0x4d,
-0x52,
-0x4c,
-0x4c,
-0x20,
-0x4d,
-0x52,
-0x4c,
-0x48,
-0x20,
-0x4d,
-0x50,
-0x58,
-0x5f,
-0x20,
-0x5b,
-0x81,
-0x13,
-0x48,
-0x50,
-0x4d,
-0x52,
-0x1,
-0x0,
-0x40,
-0xa,
-0x4d,
-0x45,
-0x53,
-0x5f,
-0x1,
-0x4d,
-0x49,
-0x4e,
-0x53,
-0x1,
-0x5b,
-0x1,
-0x4d,
-0x4c,
-0x43,
-0x4b,
-0x0,
-0x5b,
-0x81,
-0x15,
-0x48,
-0x50,
-0x4d,
-0x52,
-0x3,
-0x4d,
-0x53,
-0x45,
-0x4c,
-0x20,
-0x4d,
-0x4f,
-0x45,
-0x56,
-0x20,
-0x4d,
-0x4f,
-0x53,
-0x43,
-0x20,
-0x14,
-0x4a,
-0x4,
-0x4d,
-0x53,
-0x43,
-0x4e,
-0x0,
-0xa0,
-0x9,
-0x93,
-0x4d,
-0x44,
-0x4e,
-0x52,
-0x0,
-0xa4,
-0x0,
-0x70,
-0x0,
-0x60,
-0x5b,
-0x23,
-0x4d,
-0x4c,
-0x43,
-0x4b,
-0xff,
-0xff,
-0xa2,
-0x25,
-0x95,
-0x60,
-0x4d,
-0x44,
-0x4e,
-0x52,
-0x70,
-0x60,
-0x4d,
-0x53,
-0x45,
-0x4c,
-0xa0,
-0x13,
-0x93,
-0x4d,
-0x49,
-0x4e,
-0x53,
-0x1,
-0x4d,
-0x54,
-0x46,
-0x59,
-0x60,
-0x1,
-0x70,
-0x1,
-0x4d,
-0x49,
-0x4e,
-0x53,
-0x72,
-0x60,
-0x1,
-0x60,
-0x5b,
-0x27,
-0x4d,
-0x4c,
-0x43,
-0x4b,
-0xa4,
-0x1,
-0x14,
-0x2d,
-0x4d,
-0x52,
-0x53,
-0x54,
-0x1,
-0x70,
-0x0,
-0x60,
-0x5b,
-0x23,
-0x4d,
-0x4c,
-0x43,
-0x4b,
-0xff,
-0xff,
-0x70,
-0x99,
-0x68,
-0x0,
-0x4d,
-0x53,
-0x45,
-0x4c,
-0xa0,
-0xb,
-0x93,
-0x4d,
-0x45,
-0x53,
-0x5f,
-0x1,
-0x70,
-0xa,
-0xf,
-0x60,
-0x5b,
-0x27,
-0x4d,
-0x4c,
-0x43,
-0x4b,
-0xa4,
-0x60,
-0x14,
-0x41,
-0x18,
-0x4d,
-0x43,
-0x52,
-0x53,
-0x9,
-0x5b,
-0x23,
-0x4d,
-0x4c,
-0x43,
-0x4b,
-0xff,
-0xff,
-0x70,
-0x99,
-0x68,
-0x0,
-0x4d,
-0x53,
-0x45,
-0x4c,
-0x8,
-0x4d,
-0x52,
-0x36,
-0x34,
-0x11,
-0x33,
-0xa,
-0x30,
-0x8a,
-0x2b,
-0x0,
-0x0,
-0xc,
-0x3,
-0x0,
-0x0,
-0x0,
-0x0,
-0x0,
-0x0,
-0x0,
-0x0,
-0x0,
-0x0,
-0x0,
-0x0,
-0x0,
-0x0,
-0x0,
-0x0,
-0xfe,
-0xff,
-0xff,
-0xff,
-0xff,
-0xff,
-0xff,
-0xff,
-0x0,
-0x0,
-0x0,
-0x0,
-0x0,
-0x0,
-0x0,
-0x0,
-0xff,
-0xff,
-0xff,
-0xff,
-0xff,
-0xff,
-0xff,
-0xff,
-0x79,
-0x0,
-0x8a,
-0x4d,
-0x52,
-0x36,
-0x34,
-0xa,
-0xe,
-0x4d,
-0x49,
-0x4e,
-0x4c,
-0x8a,
-0x4d,
-0x52,
-0x36,
-0x34,
-0xa,
-0x12,
-0x4d,
-0x49,
-0x4e,
-0x48,
-0x8a,
-0x4d,
-0x52,
-0x36,
-0x34,
-0xa,
-0x26,
-0x4c,
-0x45,
-0x4e,
-0x4c,
-0x8a,
-0x4d,
-0x52,
-0x36,
-0x34,
-0xa,
-0x2a,
-0x4c,
-0x45,
-0x4e,
-0x48,
-0x8a,
-0x4d,
-0x52,
-0x36,
-0x34,
-0xa,
-0x16,
-0x4d,
-0x41,
-0x58,
-0x4c,
-0x8a,
-0x4d,
-0x52,
-0x36,
-0x34,
-0xa,
-0x1a,
-0x4d,
-0x41,
-0x58,
-0x48,
-0x70,
-0x4d,
-0x52,
-0x42,
-0x48,
-0x4d,
-0x49,
-0x4e,
-0x48,
-0x70,
-0x4d,
-0x52,
-0x42,
-0x4c,
-0x4d,
-0x49,
-0x4e,
-0x4c,
-0x70,
-0x4d,
-0x52,
-0x4c,
-0x48,
-0x4c,
-0x45,
-0x4e,
-0x48,
-0x70,
-0x4d,
-0x52,
-0x4c,
-0x4c,
-0x4c,
-0x45,
-0x4e,
-0x4c,
-0x72,
-0x4d,
-0x49,
-0x4e,
-0x4c,
-0x4c,
-0x45,
-0x4e,
-0x4c,
-0x4d,
-0x41,
-0x58,
-0x4c,
-0x72,
-0x4d,
-0x49,
-0x4e,
-0x48,
-0x4c,
-0x45,
-0x4e,
-0x48,
-0x4d,
-0x41,
-0x58,
-0x48,
-0xa0,
-0x14,
-0x95,
-0x4d,
-0x41,
-0x58,
-0x4c,
-0x4d,
-0x49,
-0x4e,
-0x4c,
-0x72,
-0x4d,
-0x41,
-0x58,
-0x48,
-0x1,
-0x4d,
-0x41,
-0x58,
-0x48,
-0xa0,
-0x11,
-0x95,
-0x4d,
-0x41,
-0x58,
-0x4c,
-0x1,
-0x74,
-0x4d,
-0x41,
-0x58,
-0x48,
-0x1,
-0x4d,
-0x41,
-0x58,
-0x48,
-0x74,
-0x4d,
-0x41,
-0x58,
-0x4c,
-0x1,
-0x4d,
-0x41,
-0x58,
-0x4c,
-0xa0,
-0x44,
-0x7,
-0x93,
-0x4d,
-0x41,
-0x58,
-0x48,
-0x0,
-0x8,
-0x4d,
-0x52,
-0x33,
-0x32,
-0x11,
-0x1f,
-0xa,
-0x1c,
-0x87,
-0x17,
-0x0,
-0x0,
-0xc,
-0x3,
-0x0,
-0x0,
-0x0,
-0x0,
-0x0,
-0x0,
-0x0,
-0x0,
-0xfe,
-0xff,
-0xff,
-0xff,
-0x0,
-0x0,
-0x0,
-0x0,
-0xff,
-0xff,
-0xff,
-0xff,
-0x79,
-0x0,
-0x8a,
-0x4d,
-0x52,
-0x33,
-0x32,
-0xa,
-0xa,
-0x4d,
-0x49,
-0x4e,
-0x5f,
-0x8a,
-0x4d,
-0x52,
-0x33,
-0x32,
-0xa,
-0xe,
-0x4d,
-0x41,
-0x58,
-0x5f,
-0x8a,
-0x4d,
-0x52,
-0x33,
-0x32,
-0xa,
-0x16,
-0x4c,
-0x45,
-0x4e,
-0x5f,
-0x70,
-0x4d,
-0x49,
-0x4e,
-0x4c,
-0x4d,
-0x49,
-0x4e,
-0x5f,
-0x70,
-0x4d,
-0x41,
-0x58,
-0x4c,
-0x4d,
-0x41,
-0x58,
-0x5f,
-0x70,
-0x4c,
-0x45,
-0x4e,
-0x4c,
-0x4c,
-0x45,
-0x4e,
-0x5f,
-0x5b,
-0x27,
-0x4d,
-0x4c,
-0x43,
-0x4b,
-0xa4,
-0x4d,
-0x52,
-0x33,
-0x32,
-0x5b,
-0x27,
-0x4d,
-0x4c,
-0x43,
-0x4b,
-0xa4,
-0x4d,
-0x52,
-0x36,
-0x34,
-0x14,
-0x24,
-0x4d,
-0x50,
-0x58,
-0x4d,
-0x1,
-0x5b,
-0x23,
-0x4d,
-0x4c,
-0x43,
-0x4b,
-0xff,
-0xff,
-0x70,
-0x99,
-0x68,
-0x0,
-0x4d,
-0x53,
-0x45,
-0x4c,
-0x70,
-0x4d,
-0x50,
-0x58,
-0x5f,
-0x60,
-0x5b,
-0x27,
-0x4d,
-0x4c,
-0x43,
-0x4b,
-0xa4,
-0x60,
-0x14,
-0x28,
-0x4d,
-0x4f,
-0x53,
-0x54,
-0x4,
-0x5b,
-0x23,
-0x4d,
-0x4c,
-0x43,
-0x4b,
-0xff,
-0xff,
-0x70,
-0x99,
-0x68,
-0x0,
-0x4d,
-0x53,
-0x45,
-0x4c,
-0x70,
-0x69,
-0x4d,
-0x4f,
-0x45,
-0x56,
-0x70,
-0x6a,
-0x4d,
-0x4f,
-0x53,
-0x43,
-0x5b,
-0x27,
-0x4d,
-0x4c,
-0x43,
-0x4b
+0x58
 };
 static unsigned char ssdt_isa_pest[] = {
-0xd0
+0xda
 };
 static unsigned char acpi_s4_name[] = {
-0x88
+0x92
 };
 static unsigned char acpi_pci64_start[] = {
 0x4d

hw/input/hid.c

@@ -41,7 +41,7 @@ static const uint8_t hid_usage_keys[0x100] = {
     0x07, 0x09, 0x0a, 0x0b, 0x0d, 0x0e, 0x0f, 0x33,
     0x34, 0x35, 0xe1, 0x31, 0x1d, 0x1b, 0x06, 0x19,
     0x05, 0x11, 0x10, 0x36, 0x37, 0x38, 0xe5, 0x55,
-    0xe2, 0x2c, 0x32, 0x3a, 0x3b, 0x3c, 0x3d, 0x3e,
+    0xe2, 0x2c, 0x39, 0x3a, 0x3b, 0x3c, 0x3d, 0x3e,
     0x3f, 0x40, 0x41, 0x42, 0x43, 0x53, 0x47, 0x5f,
     0x60, 0x61, 0x56, 0x5c, 0x5d, 0x5e, 0x57, 0x59,
     0x5a, 0x5b, 0x62, 0x63, 0x00, 0x00, 0x00, 0x44,

hw/input/pckbd.c

@@ -101,6 +101,12 @@
 #define KBD_OUT_OBF             0x10    /* Keyboard output buffer full */
 #define KBD_OUT_MOUSE_OBF       0x20    /* Mouse output buffer full */
 
+/* OSes typically write 0xdd/0xdf to turn the A20 line off and on.
+ * We make the default value of the outport include these four bits,
+ * so that the subsection is rarely necessary.
+ */
+#define KBD_OUT_ONES            0xcc
+
 /* Mouse Commands */
 #define AUX_SET_SCALE11		0xE6	/* Set 1:1 scaling */
 #define AUX_SET_SCALE21		0xE7	/* Set 2:1 scaling */
@@ -367,13 +373,13 @@ static void kbd_reset(void *opaque)
 
     s->mode = KBD_MODE_KBD_INT | KBD_MODE_MOUSE_INT;
     s->status = KBD_STAT_CMD | KBD_STAT_UNLOCKED;
-    s->outport = KBD_OUT_RESET | KBD_OUT_A20;
+    s->outport = KBD_OUT_RESET | KBD_OUT_A20 | KBD_OUT_ONES;
     s->outport_present = false;
 }
 
 static uint8_t kbd_outport_default(KBDState *s)
 {
-    return KBD_OUT_RESET | KBD_OUT_A20
+    return KBD_OUT_RESET | KBD_OUT_A20 | KBD_OUT_ONES
            | (s->status & KBD_STAT_OBF ? KBD_OUT_OBF : 0)
            | (s->status & KBD_STAT_MOUSE_OBF ? KBD_OUT_MOUSE_OBF : 0);
 }

hw/intc/apic.c

@@ -188,7 +188,7 @@ void apic_deliver_pic_intr(DeviceState *dev, int level)
             apic_reset_bit(s->irr, lvt & 0xff);
             /* fall through */
         case APIC_DM_EXTINT:
-            cpu_reset_interrupt(CPU(s->cpu), CPU_INTERRUPT_HARD);
+            apic_update_irq(s);
             break;
         }
     }
@@ -349,6 +349,11 @@ static int apic_get_arb_pri(APICCommonState *s)
 static int apic_irq_pending(APICCommonState *s)
 {
     int irrv, ppr;
+
+    if (!(s->spurious_vec & APIC_SV_ENABLE)) {
+        return 0;
+    }
+
     irrv = get_highest_priority_int(s->irr);
     if (irrv < 0) {
         return 0;
@@ -366,14 +371,13 @@ static void apic_update_irq(APICCommonState *s)
 {
     CPUState *cpu;
 
-    if (!(s->spurious_vec & APIC_SV_ENABLE)) {
-        return;
-    }
     cpu = CPU(s->cpu);
     if (!qemu_cpu_is_self(cpu)) {
         cpu_interrupt(cpu, CPU_INTERRUPT_POLL);
     } else if (apic_irq_pending(s) > 0) {
         cpu_interrupt(cpu, CPU_INTERRUPT_HARD);
+    } else if (!apic_accept_pic_intr(&s->busdev.qdev) || !pic_get_output(isa_pic)) {
+        cpu_reset_interrupt(cpu, CPU_INTERRUPT_HARD);
     }
 }
 
@@ -567,7 +571,10 @@ int apic_get_interrupt(DeviceState *dev)
     apic_sync_vapic(s, SYNC_FROM_VAPIC);
     intno = apic_irq_pending(s);
 
-    if (intno == 0) {
+    /* if there is an interrupt from the 8259, let the caller handle
+     * that first since ExtINT interrupts ignore the priority.
+     */
+    if (intno == 0 || apic_check_pic(s)) {
         apic_sync_vapic(s, SYNC_TO_VAPIC);
         return -1;
     } else if (intno < 0) {
@@ -578,9 +585,6 @@ int apic_get_interrupt(DeviceState *dev)
     apic_set_bit(s->isr, intno);
     apic_sync_vapic(s, SYNC_TO_VAPIC);
 
-    /* re-inject if there is still a pending PIC interrupt */
-    apic_check_pic(s);
-
     apic_update_irq(s);
 
     return intno;

hw/intc/apic_common.c

@@ -178,6 +178,7 @@ bool apic_next_timer(APICCommonState *s, int64_t current_time)
 void apic_init_reset(DeviceState *dev)
 {
     APICCommonState *s = APIC_COMMON(dev);
+    APICCommonClass *info = APIC_COMMON_GET_CLASS(s);
     int i;
 
     if (!s) {
@@ -206,6 +207,10 @@ void apic_init_reset(DeviceState *dev)
         timer_del(s->timer);
     }
     s->timer_expiry = -1;
+
+    if (info->reset) {
+        info->reset(s);
+    }
 }
 
 void apic_designate_bsp(DeviceState *dev)

hw/isa/vt82c686.c

@@ -36,7 +36,7 @@
 
 typedef struct SuperIOConfig
 {
-    uint8_t config[0xff];
+    uint8_t config[0x100];
     uint8_t index;
     uint8_t data;
 } SuperIOConfig;

hw/mem/pc-dimm.c

@@ -139,19 +139,34 @@ static int pc_dimm_built_list(Object *obj, void *opaque)
 
 uint64_t pc_dimm_get_free_addr(uint64_t address_space_start,
                                uint64_t address_space_size,
-                               uint64_t *hint, uint64_t size,
+                               uint64_t *hint, uint64_t align, uint64_t size,
                                Error **errp)
 {
     GSList *list = NULL, *item;
     uint64_t new_addr, ret = 0;
     uint64_t address_space_end = address_space_start + address_space_size;
 
+    g_assert(QEMU_ALIGN_UP(address_space_start, align) == address_space_start);
+    g_assert(QEMU_ALIGN_UP(address_space_size, align) == address_space_size);
+
     if (!address_space_size) {
         error_setg(errp, "memory hotplug is not enabled, "
                          "please add maxmem option");
         goto out;
     }
 
+    if (hint && QEMU_ALIGN_UP(*hint, align) != *hint) {
+        error_setg(errp, "address must be aligned to 0x%" PRIx64 " bytes",
+                   align);
+        goto out;
+    }
+
+    if (QEMU_ALIGN_UP(size, align) != size) {
+        error_setg(errp, "backend memory size must be multiple of 0x%"
+                   PRIx64, align);
+        goto out;
+    }
+
     assert(address_space_end > address_space_start);
     object_child_foreach(qdev_get_machine(), pc_dimm_built_list, &list);
 
@@ -177,7 +192,7 @@ uint64_t pc_dimm_get_free_addr(uint64_t address_space_start,
                 error_setg(errp, "address range conflicts with '%s'", d->id);
                 goto out;
             }
-            new_addr = dimm->addr + dimm_size;
+            new_addr = QEMU_ALIGN_UP(dimm->addr + dimm_size, align);
         }
     }
     ret = new_addr;

hw/misc/vfio.c

@@ -4049,6 +4049,7 @@ static void vfio_put_device(VFIODevice *vdev)
     DPRINTF("vfio_put_device: close vdev->fd\n");
     close(vdev->fd);
     if (vdev->msix) {
+        object_unparent(OBJECT(&vdev->msix->mmap_mem));
         g_free(vdev->msix);
         vdev->msix = NULL;
     }

hw/net/pcnet.c

@@ -1212,7 +1212,7 @@ static void pcnet_transmit(PCNetState *s)
     hwaddr xmit_cxda = 0;
     int count = CSR_XMTRL(s)-1;
     int add_crc = 0;
-
+    int bcnt;
     s->xmit_pos = -1;
 
     if (!CSR_TXON(s)) {
@@ -1247,35 +1247,40 @@ static void pcnet_transmit(PCNetState *s)
             s->xmit_pos = -1;
             goto txdone;
         }
-        if (!GET_FIELD(tmd.status, TMDS, ENP)) {
-            int bcnt = 4096 - GET_FIELD(tmd.length, TMDL, BCNT);
-            s->phys_mem_read(s->dma_opaque, PHYSADDR(s, tmd.tbadr),
-                             s->buffer + s->xmit_pos, bcnt, CSR_BSWP(s));
-            s->xmit_pos += bcnt;
-        } else if (s->xmit_pos >= 0) {
-            int bcnt = 4096 - GET_FIELD(tmd.length, TMDL, BCNT);
-            s->phys_mem_read(s->dma_opaque, PHYSADDR(s, tmd.tbadr),
-                             s->buffer + s->xmit_pos, bcnt, CSR_BSWP(s));
-            s->xmit_pos += bcnt;
-#ifdef PCNET_DEBUG
-            printf("pcnet_transmit size=%d\n", s->xmit_pos);
-#endif
-            if (CSR_LOOP(s)) {
-                if (BCR_SWSTYLE(s) == 1)
-                    add_crc = !GET_FIELD(tmd.status, TMDS, NOFCS);
-                s->looptest = add_crc ? PCNET_LOOPTEST_CRC : PCNET_LOOPTEST_NOCRC;
-                pcnet_receive(qemu_get_queue(s->nic), s->buffer, s->xmit_pos);
-                s->looptest = 0;
-            } else
-                if (s->nic)
-                    qemu_send_packet(qemu_get_queue(s->nic), s->buffer,
-                                     s->xmit_pos);
 
-            s->csr[0] &= ~0x0008;   /* clear TDMD */
-            s->csr[4] |= 0x0004;    /* set TXSTRT */
-            s->xmit_pos = -1;
+        if (s->xmit_pos < 0) {
+            goto txdone;
         }
 
+        bcnt = 4096 - GET_FIELD(tmd.length, TMDL, BCNT);
+        s->phys_mem_read(s->dma_opaque, PHYSADDR(s, tmd.tbadr),
+                         s->buffer + s->xmit_pos, bcnt, CSR_BSWP(s));
+        s->xmit_pos += bcnt;
+        
+        if (!GET_FIELD(tmd.status, TMDS, ENP)) {
+            goto txdone;
+        }
+
+#ifdef PCNET_DEBUG
+        printf("pcnet_transmit size=%d\n", s->xmit_pos);
+#endif
+        if (CSR_LOOP(s)) {
+            if (BCR_SWSTYLE(s) == 1)
+                add_crc = !GET_FIELD(tmd.status, TMDS, NOFCS);
+            s->looptest = add_crc ? PCNET_LOOPTEST_CRC : PCNET_LOOPTEST_NOCRC;
+            pcnet_receive(qemu_get_queue(s->nic), s->buffer, s->xmit_pos);
+            s->looptest = 0;
+        } else {
+            if (s->nic) {
+                qemu_send_packet(qemu_get_queue(s->nic), s->buffer,
+                                 s->xmit_pos);
+            }
+        }
+
+        s->csr[0] &= ~0x0008;   /* clear TDMD */
+        s->csr[4] |= 0x0004;    /* set TXSTRT */
+        s->xmit_pos = -1;
+
     txdone:
         SET_FIELD(&tmd.status, TMDS, OWN, 0);
         TMDSTORE(&tmd, PHYSADDR(s,CSR_CXDA(s)));

hw/net/rtl8139.c

@@ -1775,6 +1775,7 @@ static void rtl8139_transfer_frame(RTL8139State *s, uint8_t *buf, int size,
     int do_interrupt, const uint8_t *dot1q_buf)
 {
     struct iovec *iov = NULL;
+    struct iovec vlan_iov[3];
 
     if (!size)
     {
@@ -1789,6 +1790,9 @@ static void rtl8139_transfer_frame(RTL8139State *s, uint8_t *buf, int size,
             { .iov_base = buf + ETHER_ADDR_LEN * 2,
                 .iov_len = size - ETHER_ADDR_LEN * 2 },
         };
+
+        memcpy(vlan_iov, iov, sizeof(vlan_iov));
+        iov = vlan_iov;
     }
 
     if (TxLoopBack == (s->TxConfig & TxLoopBack))

hw/net/virtio-net.c

@@ -798,7 +798,7 @@ static void virtio_net_handle_ctrl(VirtIODevice *vdev, VirtQueue *vq)
     virtio_net_ctrl_ack status = VIRTIO_NET_ERR;
     VirtQueueElement elem;
     size_t s;
-    struct iovec *iov;
+    struct iovec *iov, *iov2;
     unsigned int iov_cnt;
 
     while (virtqueue_pop(vq, &elem)) {
@@ -808,8 +808,8 @@ static void virtio_net_handle_ctrl(VirtIODevice *vdev, VirtQueue *vq)
             exit(1);
         }
 
-        iov = elem.out_sg;
         iov_cnt = elem.out_num;
+        iov2 = iov = g_memdup(elem.out_sg, sizeof(struct iovec) * elem.out_num);
         s = iov_to_buf(iov, iov_cnt, 0, &ctrl, sizeof(ctrl));
         iov_discard_front(&iov, &iov_cnt, sizeof(ctrl));
         if (s != sizeof(ctrl)) {
@@ -833,6 +833,7 @@ static void virtio_net_handle_ctrl(VirtIODevice *vdev, VirtQueue *vq)
 
         virtqueue_push(vq, &elem, sizeof(status));
         virtio_notify(vdev, vq);
+        g_free(iov2);
     }
 }
 

hw/nvram/fw_cfg.c

@@ -523,6 +523,7 @@ void *fw_cfg_modify_file(FWCfgState *s, const char *filename,
                         void *data, size_t len)
 {
     int i, index;
+    void *ptr = NULL;
 
     assert(s->files);
 
@@ -531,8 +532,10 @@ void *fw_cfg_modify_file(FWCfgState *s, const char *filename,
 
     for (i = 0; i < index; i++) {
         if (strcmp(filename, s->files->f[i].name) == 0) {
-            return fw_cfg_modify_bytes_read(s, FW_CFG_FILE_FIRST + i,
-                                     data, len);
+            ptr = fw_cfg_modify_bytes_read(s, FW_CFG_FILE_FIRST + i,
+                                           data, len);
+            s->files->f[i].size   = cpu_to_be32(len);
+            return ptr;
         }
     }
     /* add new one */

hw/pci/pcie.c

@@ -145,7 +145,7 @@ void pcie_cap_deverr_init(PCIDevice *dev)
                                PCI_EXP_DEVCTL_FERE | PCI_EXP_DEVCTL_URRE);
     pci_long_test_and_set_mask(dev->w1cmask + pos + PCI_EXP_DEVSTA,
                                PCI_EXP_DEVSTA_CED | PCI_EXP_DEVSTA_NFED |
-                               PCI_EXP_DEVSTA_URD | PCI_EXP_DEVSTA_URD);
+                               PCI_EXP_DEVSTA_FED | PCI_EXP_DEVSTA_URD);
 }
 
 void pcie_cap_deverr_reset(PCIDevice *dev)
@@ -229,7 +229,7 @@ static void pcie_cap_slot_hotplug_common(PCIDevice *hotplug_dev,
         /* the slot is electromechanically locked.
          * This error is propagated up to qdev and then to HMP/QMP.
          */
-        error_setg_errno(errp, -EBUSY, "slot is electromechanically locked");
+        error_setg_errno(errp, EBUSY, "slot is electromechanically locked");
     }
 }
 

hw/pci/shpc.c

@@ -663,6 +663,7 @@ void shpc_cleanup(PCIDevice *d, MemoryRegion *bar)
     SHPCDevice *shpc = d->shpc;
     d->cap_present &= ~QEMU_PCI_CAP_SHPC;
     memory_region_del_subregion(bar, &shpc->mmio);
+    object_unparent(OBJECT(&shpc->mmio));
     /* TODO: cleanup config space changes? */
     g_free(shpc->config);
     g_free(shpc->cmask);

hw/ppc/spapr_iommu.c

@@ -173,9 +173,9 @@ sPAPRTCETable *spapr_tce_new_table(DeviceState *owner, uint32_t liobn,
     return tcet;
 }
 
-static void spapr_tce_table_finalize(Object *obj)
+static void spapr_tce_table_unrealize(DeviceState *dev, Error **errp)
 {
-    sPAPRTCETable *tcet = SPAPR_TCE_TABLE(obj);
+    sPAPRTCETable *tcet = SPAPR_TCE_TABLE(dev);
 
     QLIST_REMOVE(tcet, list);
 
@@ -420,6 +420,7 @@ static void spapr_tce_table_class_init(ObjectClass *klass, void *data)
     DeviceClass *dc = DEVICE_CLASS(klass);
     dc->init = spapr_tce_table_realize;
     dc->reset = spapr_tce_reset;
+    dc->unrealize = spapr_tce_table_unrealize;
 
     QLIST_INIT(&spapr_tce_tables);
 
@@ -435,7 +436,6 @@ static TypeInfo spapr_tce_table_info = {
     .parent = TYPE_DEVICE,
     .instance_size = sizeof(sPAPRTCETable),
     .class_init = spapr_tce_table_class_init,
-    .instance_finalize = spapr_tce_table_finalize,
 };
 
 static void register_types(void)

hw/scsi/scsi-bus.c

@@ -1770,6 +1770,8 @@ void scsi_req_cancel(SCSIRequest *req)
     req->io_canceled = true;
     if (req->aiocb) {
         blk_aio_cancel(req->aiocb);
+    } else {
+        scsi_req_cancel_complete(req);
     }
 }
 

hw/scsi/vhost-scsi.c

@@ -233,6 +233,7 @@ static void vhost_scsi_realize(DeviceState *dev, Error **errp)
                                vhost_dummy_handle_output);
     if (err != NULL) {
         error_propagate(errp, err);
+        close(vhostfd);
         return;
     }
 

hw/scsi/virtio-scsi.c

@@ -144,7 +144,7 @@ static int virtio_scsi_parse_req(VirtIOSCSIReq *req,
      *
      * TODO: always disable this workaround for virtio 1.0 devices.
      */
-    if ((vdev->guest_features & VIRTIO_F_ANY_LAYOUT) == 0) {
+    if ((vdev->guest_features & (1 << VIRTIO_F_ANY_LAYOUT)) == 0) {
         req_size = req->elem.out_sg[0].iov_len;
         resp_size = req->elem.in_sg[0].iov_len;
     }

hw/timer/mc146818rtc.c

@@ -734,7 +734,7 @@ static int rtc_post_load(void *opaque, int version_id)
 }
 
 static const VMStateDescription vmstate_rtc_irq_reinject_on_ack_count = {
-    .name = "irq_reinject_on_ack_count",
+    .name = "mc146818rtc/irq_reinject_on_ack_count",
     .version_id = 1,
     .minimum_version_id = 1,
     .fields = (VMStateField[]) {

hw/virtio/dataplane/vring.c

@@ -133,12 +133,12 @@ bool vring_should_notify(VirtIODevice *vdev, Vring *vring)
      * interrupts. */
     smp_mb();
 
-    if ((vdev->guest_features & VIRTIO_F_NOTIFY_ON_EMPTY) &&
+    if ((vdev->guest_features & (1 << VIRTIO_F_NOTIFY_ON_EMPTY)) &&
         unlikely(vring->vr.avail->idx == vring->last_avail_idx)) {
         return true;
     }
 
-    if (!(vdev->guest_features & VIRTIO_RING_F_EVENT_IDX)) {
+    if (!(vdev->guest_features & (1 << VIRTIO_RING_F_EVENT_IDX))) {
         return !(vring->vr.avail->flags & VRING_AVAIL_F_NO_INTERRUPT);
     }
     old = vring->signalled_used;

hw/virtio/vhost.c

@@ -817,10 +817,12 @@ int vhost_dev_init(struct vhost_dev *hdev, void *opaque,
     int i, r;
 
     if (vhost_set_backend_type(hdev, backend_type) < 0) {
+        close((uintptr_t)opaque);
         return -1;
     }
 
     if (hdev->vhost_ops->vhost_backend_init(hdev, opaque) < 0) {
+        close((uintptr_t)opaque);
         return -errno;
     }
 

hw/virtio/virtio-rng.c

@@ -113,20 +113,22 @@ static void virtio_rng_save(QEMUFile *f, void *opaque)
 
 static int virtio_rng_load(QEMUFile *f, void *opaque, int version_id)
 {
+    VirtIORNG *vrng = opaque;
+    int ret;
+
     if (version_id != 1) {
         return -EINVAL;
     }
-    return virtio_load(VIRTIO_DEVICE(opaque), f, version_id);
-}
+    ret = virtio_load(VIRTIO_DEVICE(vrng), f, version_id);
+    if (ret != 0) {
+        return ret;
+    }
 
-static int virtio_rng_load_device(VirtIODevice *vdev, QEMUFile *f,
-                                  int version_id)
-{
     /* We may have an element ready but couldn't process it due to a quota
      * limit.  Make sure to try again after live migration when the quota may
      * have been reset.
      */
-    virtio_rng_process(VIRTIO_RNG(vdev));
+    virtio_rng_process(vrng);
 
     return 0;
 }
@@ -231,7 +233,6 @@ static void virtio_rng_class_init(ObjectClass *klass, void *data)
     vdc->realize = virtio_rng_device_realize;
     vdc->unrealize = virtio_rng_device_unrealize;
     vdc->get_features = get_features;
-    vdc->load = virtio_rng_load_device;
 }
 
 static void virtio_rng_initfn(Object *obj)

include/block/block_int.h

@@ -411,6 +411,14 @@ struct BlockDriverState {
     Error *backing_blocker;
 };
 
+
+/* Essential block drivers which must always be statically linked into qemu, and
+ * which therefore can be accessed without using bdrv_find_format() */
+extern BlockDriver bdrv_file;
+extern BlockDriver bdrv_raw;
+extern BlockDriver bdrv_qcow2;
+
+
 int get_tmp_filename(char *filename, int size);
 
 void bdrv_set_io_limits(BlockDriverState *bs,

include/exec/exec-all.h

@@ -333,7 +333,7 @@ extern uintptr_t tci_tb_ptr;
 
 #if !defined(CONFIG_USER_ONLY)
 
-void phys_mem_set_alloc(void *(*alloc)(size_t));
+void phys_mem_set_alloc(void *(*alloc)(size_t, uint64_t *align));
 
 struct MemoryRegion *iotlb_to_region(AddressSpace *as, hwaddr index);
 bool io_mem_read(struct MemoryRegion *mr, hwaddr addr,

include/exec/memory.h

@@ -146,6 +146,7 @@ struct MemoryRegion {
     hwaddr addr;
     void (*destructor)(MemoryRegion *mr);
     ram_addr_t ram_addr;
+    uint64_t align;
     bool subpage;
     bool terminates;
     bool romd_mode;
@@ -838,6 +839,7 @@ void memory_region_add_subregion_overlap(MemoryRegion *mr,
  */
 ram_addr_t memory_region_get_ram_addr(MemoryRegion *mr);
 
+uint64_t memory_region_get_alignment(const MemoryRegion *mr);
 /**
  * memory_region_del_subregion: Remove a subregion.
  *

include/hw/i386/apic_internal.h

@@ -89,6 +89,7 @@ typedef struct APICCommonClass
     void (*external_nmi)(APICCommonState *s);
     void (*pre_save)(APICCommonState *s);
     void (*post_load)(APICCommonState *s);
+    void (*reset)(APICCommonState *s);
 } APICCommonClass;
 
 struct APICCommonState {

include/hw/i386/pc.h

@@ -24,6 +24,8 @@
  * address space begins.
  * @hotplug_memory: hotplug memory addess space container
  * @acpi_dev: link to ACPI PM device that performs ACPI hotplug handling
+ * @enforce_aligned_dimm: check that DIMM's address/size is aligned by
+ *                        backend's alignment value if provided
  */
 struct PCMachineState {
     /*< private >*/
@@ -37,13 +39,15 @@ struct PCMachineState {
     ISADevice *rtc;
 
     uint64_t max_ram_below_4g;
-    bool vmport;
+    OnOffAuto vmport;
+    bool enforce_aligned_dimm;
 };
 
 #define PC_MACHINE_ACPI_DEVICE_PROP "acpi-device"
 #define PC_MACHINE_MEMHP_REGION_SIZE "hotplug-memory-region-size"
 #define PC_MACHINE_MAX_RAM_BELOW_4G "max-ram-below-4g"
 #define PC_MACHINE_VMPORT           "vmport"
+#define PC_MACHINE_ENFORCE_ALIGNED_DIMM "enforce-aligned-dimm"
 
 /**
  * PCMachineClass:

include/hw/loader.h

@@ -59,7 +59,7 @@ extern bool rom_file_has_mr;
 int rom_add_file(const char *file, const char *fw_dir,
                  hwaddr addr, int32_t bootindex,
                  bool option_rom);
-void *rom_add_blob(const char *name, const void *blob, size_t len,
+ram_addr_t rom_add_blob(const char *name, const void *blob, size_t len,
                    hwaddr addr, const char *fw_file_name,
                    FWCfgReadCallback fw_callback, void *callback_opaque);
 int rom_add_elf_program(const char *name, void *data, size_t datasize,

include/hw/mem/pc-dimm.h

@@ -72,7 +72,7 @@ typedef struct PCDIMMDeviceClass {
 
 uint64_t pc_dimm_get_free_addr(uint64_t address_space_start,
                                uint64_t address_space_size,
-                               uint64_t *hint, uint64_t size,
+                               uint64_t *hint, uint64_t align, uint64_t size,
                                Error **errp);
 
 int pc_dimm_get_free_slot(const int *hint, int max_slots, Error **errp);

include/hw/qdev-core.h

@@ -365,7 +365,7 @@ extern int qdev_hotplug;
 
 char *qdev_get_dev_path(DeviceState *dev);
 
-int qdev_build_hotpluggable_device_list(Object *obj, void *opaque);
+GSList *qdev_build_hotpluggable_device_list(Object *peripheral);
 
 void qbus_set_hotplug_handler(BusState *bus, DeviceState *handler,
                               Error **errp);

include/qemu/atomic.h

@@ -122,11 +122,11 @@
 #endif
 
 #ifndef atomic_read
-#define atomic_read(ptr)       (*(__typeof__(*ptr) *volatile) (ptr))
+#define atomic_read(ptr)       (*(__typeof__(*ptr) volatile*) (ptr))
 #endif
 
 #ifndef atomic_set
-#define atomic_set(ptr, i)     ((*(__typeof__(*ptr) *volatile) (ptr)) = (i))
+#define atomic_set(ptr, i)     ((*(__typeof__(*ptr) volatile*) (ptr)) = (i))
 #endif
 
 /* These have the same semantics as Java volatile variables.

include/qemu/osdep.h

@@ -5,6 +5,7 @@
 #include <stdarg.h>
 #include <stddef.h>
 #include <stdbool.h>
+#include <stdint.h>
 #include <sys/types.h>
 #ifdef __OpenBSD__
 #include <sys/signal.h>
@@ -103,7 +104,7 @@ typedef signed int              int_fast16_t;
 int qemu_daemon(int nochdir, int noclose);
 void *qemu_try_memalign(size_t alignment, size_t size);
 void *qemu_memalign(size_t alignment, size_t size);
-void *qemu_anon_ram_alloc(size_t size);
+void *qemu_anon_ram_alloc(size_t size, uint64_t *align);
 void qemu_vfree(void *ptr);
 void qemu_anon_ram_free(void *ptr, size_t size);
 

include/sysemu/kvm.h

@@ -163,6 +163,7 @@ extern KVMState *kvm_state;
 
 /* external API */
 
+bool kvm_has_free_slot(MachineState *ms);
 int kvm_has_sync_mmu(void);
 int kvm_has_vcpu_events(void);
 int kvm_has_robust_singlestep(void);

kvm-all.c

@@ -132,7 +132,7 @@ static const KVMCapabilityInfo kvm_required_capabilites[] = {
     KVM_CAP_LAST_INFO
 };
 
-static KVMSlot *kvm_alloc_slot(KVMState *s)
+static KVMSlot *kvm_get_free_slot(KVMState *s)
 {
     int i;
 
@@ -142,6 +142,22 @@ static KVMSlot *kvm_alloc_slot(KVMState *s)
         }
     }
 
+    return NULL;
+}
+
+bool kvm_has_free_slot(MachineState *ms)
+{
+    return kvm_get_free_slot(KVM_STATE(ms->accelerator));
+}
+
+static KVMSlot *kvm_alloc_slot(KVMState *s)
+{
+    KVMSlot *slot = kvm_get_free_slot(s);
+
+    if (slot) {
+        return slot;
+    }
+
     fprintf(stderr, "%s: no free slot available\n", __func__);
     abort();
 }
@@ -634,8 +650,10 @@ static void kvm_set_phys_mem(MemoryRegionSection *section, bool add)
     unsigned delta;
 
     /* kvm works in page size chunks, but the function may be called
-       with sub-page size and unaligned start address. */
-    delta = TARGET_PAGE_ALIGN(size) - size;
+       with sub-page size and unaligned start address. Pad the start
+       address to next and truncate size to previous page boundary. */
+    delta = (TARGET_PAGE_SIZE - (start_addr & ~TARGET_PAGE_MASK));
+    delta &= ~TARGET_PAGE_MASK;
     if (delta > size) {
         return;
     }

kvm-stub.c

@@ -147,4 +147,9 @@ int kvm_irqchip_remove_irqfd_notifier(KVMState *s, EventNotifier *n, int virq)
 {
     return -ENOSYS;
 }
+
+bool kvm_has_free_slot(MachineState *ms)
+{
+    return false;
+}
 #endif

libcacard/Makefile

@@ -19,6 +19,8 @@ vscclient$(EXESUF): libcacard/vscclient.o libcacard.la
 
 libcacard.la: LDFLAGS += -rpath $(libdir) -no-undefined \
 	-export-symbols $(SRC_PATH)/libcacard/libcacard.syms
+# Prevent libcacard.so linking against the entire world of 3rd party libs
+libcacard.la: LIBS =
 libcacard.la: $(libcacard-lobj-y)
 	$(call LINK,$^)
 

linux-user/main.c

@@ -3435,12 +3435,19 @@ CPUArchState *cpu_copy(CPUArchState *env)
 {
     CPUState *cpu = ENV_GET_CPU(env);
     CPUArchState *new_env = cpu_init(cpu_model);
-    CPUState *new_cpu = ENV_GET_CPU(new_env);
+    CPUState *new_cpu;
 #if defined(TARGET_HAS_ICE)
     CPUBreakpoint *bp;
     CPUWatchpoint *wp;
 #endif
 
+    if (!new_env) {
+        fprintf(stderr, "cpu_copy: Failed to create new CPU\n");
+        exit(1);
+    }
+
+    new_cpu = ENV_GET_CPU(new_env);
+
     /* Reset non arch specific state */
     cpu_reset(new_cpu);
 

linux-user/signal.c

@@ -5091,7 +5091,7 @@ static void setup_frame(int sig, struct target_sigaction *ka,
     /* moveq #,d0; trap #0 */
 
     __put_user(0x70004e40 + (TARGET_NR_sigreturn << 16),
-                      (long *)(frame->retcode));
+                      (uint32_t *)(frame->retcode));
 
     /* Set up to return from userspace */
 
@@ -5225,8 +5225,8 @@ static void setup_rt_frame(int sig, struct target_sigaction *ka,
     /* moveq #,d0; notb d0; trap #0 */
 
     __put_user(0x70004600 + ((TARGET_NR_rt_sigreturn ^ 0xff) << 16),
-               (long *)(frame->retcode + 0));
-    __put_user(0x4e40, (short *)(frame->retcode + 4));
+               (uint32_t *)(frame->retcode + 0));
+    __put_user(0x4e40, (uint16_t *)(frame->retcode + 4));
 
     if (err)
         goto give_sigsegv;

memory.c

@@ -1749,6 +1749,11 @@ ram_addr_t memory_region_get_ram_addr(MemoryRegion *mr)
     return mr->ram_addr;
 }
 
+uint64_t memory_region_get_alignment(const MemoryRegion *mr)
+{
+    return mr->align;
+}
+
 static int cmp_flatrange_addr(const void *addr_, const void *fr_)
 {
     const AddrRange *addr = addr_;

monitor.c

@@ -4321,17 +4321,14 @@ void object_add_completion(ReadLineState *rs, int nb_args, const char *str)
 static void peripheral_device_del_completion(ReadLineState *rs,
                                              const char *str, size_t len)
 {
-    Object *peripheral;
-    GSList *list = NULL, *item;
+    Object *peripheral = container_get(qdev_get_machine(), "/peripheral");
+    GSList *list, *item;
 
-    peripheral = object_resolve_path("/machine/peripheral/", NULL);
-    if (peripheral == NULL) {
+    list = qdev_build_hotpluggable_device_list(peripheral);
+    if (!list) {
         return;
     }
 
-    object_child_foreach(peripheral, qdev_build_hotpluggable_device_list,
-                         &list);
-
     for (item = list; item; item = g_slist_next(item)) {
         DeviceState *dev = item->data;
 

net/slirp.c

@@ -643,17 +643,16 @@ static int slirp_guestfwd(SlirpState *s, const char *config_str,
         goto fail_syntax;
     }
 
-    fwd = g_malloc(sizeof(struct GuestFwd));
     snprintf(buf, sizeof(buf), "guestfwd.tcp.%d", port);
 
     if ((strlen(p) > 4) && !strncmp(p, "cmd:", 4)) {
         if (slirp_add_exec(s->slirp, 0, &p[4], &server, port) < 0) {
             error_report("conflicting/invalid host:port in guest forwarding "
                          "rule '%s'", config_str);
-            g_free(fwd);
             return -1;
         }
     } else {
+        fwd = g_malloc(sizeof(struct GuestFwd));
         fwd->hd = qemu_chr_new(buf, p, NULL);
         if (!fwd->hd) {
             error_report("could not open guest forwarding device '%s'", buf);

net/socket.c

@@ -389,11 +389,6 @@ static NetSocketState *net_socket_fd_init_dgram(NetClientState *peer,
 
     nc = qemu_new_net_client(&net_dgram_socket_info, peer, model, name);
 
-    snprintf(nc->info_str, sizeof(nc->info_str),
-            "socket: fd=%d (%s mcast=%s:%d)",
-            fd, is_connected ? "cloned" : "",
-            inet_ntoa(saddr.sin_addr), ntohs(saddr.sin_port));
-
     s = DO_UPCAST(NetSocketState, nc, nc);
 
     s->fd = fd;
@@ -404,6 +399,12 @@ static NetSocketState *net_socket_fd_init_dgram(NetClientState *peer,
     /* mcast: save bound address as dst */
     if (is_connected) {
         s->dgram_dst = saddr;
+        snprintf(nc->info_str, sizeof(nc->info_str),
+                 "socket: fd=%d (cloned mcast=%s:%d)",
+                 fd, inet_ntoa(saddr.sin_addr), ntohs(saddr.sin_port));
+    } else {
+        snprintf(nc->info_str, sizeof(nc->info_str),
+                 "socket: fd=%d", fd);
     }
 
     return s;

pc-bios/optionrom/linuxboot.S

@@ -76,7 +76,31 @@ boot_kernel:
 
 
 copy_kernel:
-	/* Compute initrd address */
+	/* Read info block in low memory (0x10000 or 0x90000) */
+	read_fw		FW_CFG_SETUP_ADDR
+	shr		$4, %eax
+	mov		%eax, %es
+	xor		%edi, %edi
+	read_fw_blob_addr32_edi(FW_CFG_SETUP)
+
+	cmpw            $0x203, %es:0x206      // if protocol >= 0x203
+	jae             1f                     // have initrd_max
+	movl            $0x37ffffff, %es:0x22c // else assume 0x37ffffff
+1:
+
+	/* Check if using kernel-specified initrd address */
+	read_fw		FW_CFG_INITRD_ADDR
+	mov		%eax, %edi             // (load_kernel wants it in %edi)
+	read_fw		FW_CFG_INITRD_SIZE     // find end of initrd
+	add		%edi, %eax
+	xor		%es:0x22c, %eax        // if it matches es:0x22c
+	and		$-4096, %eax           // (apart from padding for page)
+	jz		load_kernel            // then initrd is not at top
+					       // of memory
+
+	/* pc.c placed the initrd at end of memory.  Compute a better
+	 * initrd address based on e801 data.
+	 */
 	mov		$0xe801, %ax
 	xor		%cx, %cx
 	xor		%dx, %dx
@@ -107,7 +131,9 @@ copy_kernel:
 	read_fw         FW_CFG_INITRD_SIZE
 	subl            %eax, %edi
 	andl            $-4096, %edi          /* EDI = start of initrd */
+	movl		%edi, %es:0x218       /* put it in the header */
 
+load_kernel:
 	/* We need to load the kernel into memory we can't access in 16 bit
 	   mode, so let's get into 32 bit mode, write the kernel and jump
 	   back again. */
@@ -139,19 +165,10 @@ copy_kernel:
 	/* We're now running in 16-bit CS, but 32-bit ES! */
 
 	/* Load kernel and initrd */
-	pushl		%edi
 	read_fw_blob_addr32_edi(FW_CFG_INITRD)
 	read_fw_blob_addr32(FW_CFG_KERNEL)
 	read_fw_blob_addr32(FW_CFG_CMDLINE)
 
-	read_fw		FW_CFG_SETUP_ADDR
-	mov		%eax, %edi
-	mov		%eax, %ebx
-	read_fw_blob_addr32_edi(FW_CFG_SETUP)
-
-	/* Update the header with the initrd address we chose above */
-	popl		%es:0x218(%ebx)
-
 	/* And now jump into Linux! */
 	mov		$0, %eax
 	mov		%eax, %cr0

qapi-schema.json

@@ -3245,7 +3245,7 @@
               'abs'     : 'InputMoveEvent' } }
 
 ##
-# @input-send-event
+# @x-input-send-event
 #
 # Send input event(s) to guest.
 #
@@ -3257,8 +3257,10 @@
 #
 # Since: 2.2
 #
+# Note: this command is experimental, and not a stable API.
+#
 ##
-{ 'command': 'input-send-event',
+{ 'command': 'x-input-send-event',
   'data': { '*console':'int', 'events': [ 'InputEvent' ] } }
 
 ##

qapi/block-core.json

@@ -119,8 +119,6 @@
 # @format-specific: #optional structure supplying additional format-specific
 # information (since 1.7)
 #
-# @nocow: #optional info of whether NOCOW flag is set or not. (since 2.2)
-#
 # Since: 1.3
 #
 ##
@@ -132,8 +130,7 @@
            '*backing-filename': 'str', '*full-backing-filename': 'str',
            '*backing-filename-format': 'str', '*snapshots': ['SnapshotInfo'],
            '*backing-image': 'ImageInfo',
-           '*format-specific': 'ImageInfoSpecific',
-           '*nocow': 'bool' } }
+           '*format-specific': 'ImageInfoSpecific' } }
 
 ##
 # @ImageCheck:

qapi/common.json

@@ -87,3 +87,18 @@
 ##
 { 'command': 'query-commands', 'returns': ['CommandInfo'] }
 
+##
+# @OnOffAuto
+#
+# An enumeration of three options: on, off, and auto
+#
+# @auto: QEMU selects the value between on and off
+#
+# @on: Enabled
+#
+# @off: Disabled
+#
+# Since: 2.2
+##
+{ 'enum': 'OnOffAuto',
+  'data': [ 'auto', 'on', 'off' ] }

qemu-char.c

@@ -88,6 +88,7 @@
 #define READ_BUF_LEN 4096
 #define READ_RETRIES 10
 #define CHR_MAX_FILENAME_SIZE 256
+#define TCP_MAX_FDS 16
 
 /***********************************************************/
 /* Socket address helpers */
@@ -2668,6 +2669,8 @@ static int tcp_get_msgfds(CharDriverState *chr, int *fds, int num)
     TCPCharDriver *s = chr->opaque;
     int to_copy = (s->read_msgfds_num < num) ? s->read_msgfds_num : num;
 
+    assert(num <= TCP_MAX_FDS);
+
     if (to_copy) {
         int i;
 
@@ -2762,7 +2765,7 @@ static ssize_t tcp_chr_recv(CharDriverState *chr, char *buf, size_t len)
     struct iovec iov[1];
     union {
         struct cmsghdr cmsg;
-        char control[CMSG_SPACE(sizeof(int))];
+        char control[CMSG_SPACE(sizeof(int) * TCP_MAX_FDS)];
     } msg_control;
     int flags = 0;
     ssize_t ret;

qemu-coroutine.c

@@ -135,7 +135,7 @@ void coroutine_fn qemu_coroutine_yield(void)
     }
 
     self->caller = NULL;
-    coroutine_swap(self, to);
+    qemu_coroutine_switch(self, to, COROUTINE_YIELD);
 }
 
 void qemu_coroutine_adjust_pool_size(int n)

qemu-img.c

@@ -1531,6 +1531,20 @@ static int img_convert(int argc, char **argv)
         goto out;
     }
 
+    if (!drv->create_opts) {
+        error_report("Format driver '%s' does not support image creation",
+                     drv->format_name);
+        ret = -1;
+        goto out;
+    }
+
+    if (!proto_drv->create_opts) {
+        error_report("Protocol driver '%s' does not support image creation",
+                     proto_drv->format_name);
+        ret = -1;
+        goto out;
+    }
+
     create_opts = qemu_opts_append(create_opts, drv->create_opts);
     create_opts = qemu_opts_append(create_opts, proto_drv->create_opts);
 
@@ -2972,6 +2986,13 @@ static int img_amend(int argc, char **argv)
         goto out;
     }
 
+    if (!bs->drv->create_opts) {
+        error_report("Format driver '%s' does not support any options to amend",
+                     fmt);
+        ret = -1;
+        goto out;
+    }
+
     create_opts = qemu_opts_append(create_opts, bs->drv->create_opts);
     opts = qemu_opts_create(create_opts, NULL, 0, &error_abort);
     if (options && qemu_opts_do_parse(opts, options, NULL)) {

qemu-options.hx

@@ -33,7 +33,7 @@ DEF("machine", HAS_ARG, QEMU_OPTION_machine, \
     "                property accel=accel1[:accel2[:...]] selects accelerator\n"
     "                supported accelerators are kvm, xen, tcg (default: tcg)\n"
     "                kernel_irqchip=on|off controls accelerated irqchip support\n"
-    "                vmport=on|off controls emulation of vmport (default: on)\n"
+    "                vmport=on|off|auto controls emulation of vmport (default: auto)\n"
     "                kvm_shadow_mem=size of KVM shadow MMU\n"
     "                dump-guest-core=on|off include guest memory in a core dump (default=on)\n"
     "                mem-merge=on|off controls memory merge support (default: on)\n"
@@ -52,8 +52,10 @@ than one accelerator specified, the next one is used if the previous one fails
 to initialize.
 @item kernel_irqchip=on|off
 Enables in-kernel irqchip support for the chosen accelerator when available.
-@item vmport=on|off
-Enables emulation of VMWare IO port, for vmmouse etc. (enabled by default)
+@item vmport=on|off|auto
+Enables emulation of VMWare IO port, for vmmouse etc. auto says to select the
+value based on accel. For accel=xen the default is off otherwise the default
+is on.
 @item kvm_shadow_mem=size
 Defines the size of the KVM shadow MMU.
 @item dump-guest-core=on|off

qemu-timer.c

@@ -314,7 +314,14 @@ int qemu_poll_ns(GPollFD *fds, guint nfds, int64_t timeout)
         return ppoll((struct pollfd *)fds, nfds, NULL, NULL);
     } else {
         struct timespec ts;
-        ts.tv_sec = timeout / 1000000000LL;
+        int64_t tvsec = timeout / 1000000000LL;
+        /* Avoid possibly overflowing and specifying a negative number of
+         * seconds, which would turn a very long timeout into a busy-wait.
+         */
+        if (tvsec > (int64_t)INT32_MAX) {
+            tvsec = INT32_MAX;
+        }
+        ts.tv_sec = tvsec;
         ts.tv_nsec = timeout % 1000000000LL;
         return ppoll((struct pollfd *)fds, nfds, &ts, NULL);
     }

qmp-commands.hx

@@ -3791,13 +3791,13 @@ Example:
 EQMP
 
     {
-        .name       = "input-send-event",
+        .name       = "x-input-send-event",
         .args_type  = "console:i?,events:q",
-        .mhandler.cmd_new = qmp_marshal_input_input_send_event,
+        .mhandler.cmd_new = qmp_marshal_input_x_input_send_event,
     },
 
 SQMP
-@input-send-event
+@x-input-send-event
 -----------------
 
 Send input event to guest.
@@ -3811,17 +3811,19 @@ The consoles are visible in the qom tree, under
 /backend/console[$index]. They have a device link and head property, so
 it is possible to map which console belongs to which device and display.
 
+Note: this command is experimental, and not a stable API.
+
 Example (1):
 
 Press left mouse button.
 
--> { "execute": "input-send-event",
+-> { "execute": "x-input-send-event",
     "arguments": { "console": 0,
                    "events": [ { "type": "btn",
                     "data" : { "down": true, "button": "Left" } } } }
 <- { "return": {} }
 
--> { "execute": "input-send-event",
+-> { "execute": "x-input-send-event",
     "arguments": { "console": 0,
                    "events": [ { "type": "btn",
                     "data" : { "down": false, "button": "Left" } } } }
@@ -3831,7 +3833,7 @@ Example (2):
 
 Press ctrl-alt-del.
 
--> { "execute": "input-send-event",
+-> { "execute": "x-input-send-event",
      "arguments": { "console": 0, "events": [
         { "type": "key", "data" : { "down": true,
           "key": {"type": "qcode", "data": "ctrl" } } },
@@ -3845,7 +3847,7 @@ Example (3):
 
 Move mouse pointer to absolute coordinates (20000, 400).
 
--> { "execute": "input-send-event" ,
+-> { "execute": "x-input-send-event" ,
   "arguments": { "console": 0, "events": [
                { "type": "abs", "data" : { "axis": "X", "value" : 20000 } },
                { "type": "abs", "data" : { "axis": "Y", "value" : 400 } } ] } }

target-arm/translate-a64.c

@@ -2107,7 +2107,7 @@ static void disas_ldst_reg_imm9(DisasContext *s, uint32_t insn)
         }
     } else {
         TCGv_i64 tcg_rt = cpu_reg(s, rt);
-        int memidx = is_unpriv ? 1 : get_mem_index(s);
+        int memidx = is_unpriv ? MMU_USER_IDX : get_mem_index(s);
 
         if (is_store) {
             do_gpr_st_memidx(s, tcg_rt, tcg_addr, size, memidx);

target-i386/cpu.c

@@ -2912,8 +2912,14 @@ static bool x86_cpu_has_work(CPUState *cs)
     X86CPU *cpu = X86_CPU(cs);
     CPUX86State *env = &cpu->env;
 
-    return ((cs->interrupt_request & (CPU_INTERRUPT_HARD |
-                                      CPU_INTERRUPT_POLL)) &&
+#if !defined(CONFIG_USER_ONLY)
+    if (cs->interrupt_request & CPU_INTERRUPT_POLL) {
+        apic_poll_irq(cpu->apic_state);
+        cpu_reset_interrupt(cs, CPU_INTERRUPT_POLL);
+    }
+#endif
+
+    return ((cs->interrupt_request & CPU_INTERRUPT_HARD) &&
             (env->eflags & IF_MASK)) ||
            (cs->interrupt_request & (CPU_INTERRUPT_NMI |
                                      CPU_INTERRUPT_INIT |

target-i386/translate.c

@@ -3069,7 +3069,8 @@ static void gen_sse(CPUX86State *env, DisasContext *s, int b,
                 goto illegal_op;
             gen_lea_modrm(env, s, modrm);
             if (b1 & 1) {
-                gen_stq_env_A0(s, offsetof(CPUX86State, xmm_regs[reg]));
+                gen_stq_env_A0(s, offsetof(CPUX86State,
+                                           xmm_regs[reg].XMM_Q(0)));
             } else {
                 tcg_gen_ld32u_tl(cpu_T[0], cpu_env, offsetof(CPUX86State,
                     xmm_regs[reg].XMM_L(0)));

target-mips/machine.c

@@ -285,6 +285,10 @@ int cpu_load(QEMUFile *f, void *opaque, int version_id)
     qemu_get_sbe32s(f, &env->CP0_SRSConf4);
     qemu_get_sbe32s(f, &env->CP0_HWREna);
     qemu_get_betls(f, &env->CP0_BadVAddr);
+    if (version_id >= 5) {
+        qemu_get_be32s(f, &env->CP0_BadInstr);
+        qemu_get_be32s(f, &env->CP0_BadInstrP);
+    }
     qemu_get_sbe32s(f, &env->CP0_Count);
     qemu_get_betls(f, &env->CP0_EntryHi);
     qemu_get_sbe32s(f, &env->CP0_Compare);
@@ -319,8 +323,6 @@ int cpu_load(QEMUFile *f, void *opaque, int version_id)
     qemu_get_betls(f, &env->CP0_ErrorEPC);
     qemu_get_sbe32s(f, &env->CP0_DESAVE);
     if (version_id >= 5) {
-        qemu_get_be32s(f, &env->CP0_BadInstr);
-        qemu_get_be32s(f, &env->CP0_BadInstrP);
         for (i = 0; i < MIPS_KSCRATCH_NUM; i++) {
             qemu_get_betls(f, &env->CP0_KScratch[i]);
         }