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-rw-r--r--hw/i386/acpi-build.c17
-rw-r--r--hw/intc/ioapic.c8
-rw-r--r--hw/scsi/virtio-scsi.c7
-rw-r--r--hw/tpm/tpm_crb.c4
-rw-r--r--hw/tpm/tpm_emulator.c60
-rw-r--r--hw/tpm/tpm_int.h13
-rw-r--r--hw/tpm/tpm_tis.c4
-rw-r--r--hw/virtio/virtio-balloon.c115
8 files changed, 147 insertions, 81 deletions
diff --git a/hw/i386/acpi-build.c b/hw/i386/acpi-build.c
index d281ffa89e..f3fdfefcd5 100644
--- a/hw/i386/acpi-build.c
+++ b/hw/i386/acpi-build.c
@@ -755,10 +755,16 @@ static void crs_range_set_free(CrsRangeSet *range_set)
 
 static gint crs_range_compare(gconstpointer a, gconstpointer b)
 {
-     CrsRangeEntry *entry_a = *(CrsRangeEntry **)a;
-     CrsRangeEntry *entry_b = *(CrsRangeEntry **)b;
+    CrsRangeEntry *entry_a = *(CrsRangeEntry **)a;
+    CrsRangeEntry *entry_b = *(CrsRangeEntry **)b;
 
-     return (int64_t)entry_a->base - (int64_t)entry_b->base;
+    if (entry_a->base < entry_b->base) {
+        return -1;
+    } else if (entry_a->base > entry_b->base) {
+        return 1;
+    } else {
+        return 0;
+    }
 }
 
 /*
@@ -1908,10 +1914,13 @@ build_dsdt(GArray *table_data, BIOSLinker *linker,
             scope = aml_scope("\\_SB");
             dev = aml_device("PC%.02X", bus_num);
             aml_append(dev, aml_name_decl("_UID", aml_int(bus_num)));
-            aml_append(dev, aml_name_decl("_HID", aml_eisaid("PNP0A03")));
             aml_append(dev, aml_name_decl("_BBN", aml_int(bus_num)));
             if (pci_bus_is_express(bus)) {
+                aml_append(dev, aml_name_decl("_HID", aml_eisaid("PNP0A08")));
+                aml_append(dev, aml_name_decl("_CID", aml_eisaid("PNP0A03")));
                 aml_append(dev, build_q35_osc_method());
+            } else {
+                aml_append(dev, aml_name_decl("_HID", aml_eisaid("PNP0A03")));
             }
 
             if (numa_node != NUMA_NODE_UNASSIGNED) {
diff --git a/hw/intc/ioapic.c b/hw/intc/ioapic.c
index c408749876..e99c37cceb 100644
--- a/hw/intc/ioapic.c
+++ b/hw/intc/ioapic.c
@@ -197,9 +197,11 @@ static void ioapic_update_kvm_routes(IOAPICCommonState *s)
             MSIMessage msg;
             struct ioapic_entry_info info;
             ioapic_entry_parse(s->ioredtbl[i], &info);
-            msg.address = info.addr;
-            msg.data = info.data;
-            kvm_irqchip_update_msi_route(kvm_state, i, msg, NULL);
+            if (!info.masked) {
+                msg.address = info.addr;
+                msg.data = info.data;
+                kvm_irqchip_update_msi_route(kvm_state, i, msg, NULL);
+            }
         }
         kvm_irqchip_commit_routes(kvm_state);
     }
diff --git a/hw/scsi/virtio-scsi.c b/hw/scsi/virtio-scsi.c
index d0bdbff090..8b9e5e2b49 100644
--- a/hw/scsi/virtio-scsi.c
+++ b/hw/scsi/virtio-scsi.c
@@ -832,6 +832,7 @@ static void virtio_scsi_hotunplug(HotplugHandler *hotplug_dev, DeviceState *dev,
     VirtIODevice *vdev = VIRTIO_DEVICE(hotplug_dev);
     VirtIOSCSI *s = VIRTIO_SCSI(vdev);
     SCSIDevice *sd = SCSI_DEVICE(dev);
+    AioContext *ctx = s->ctx ?: qemu_get_aio_context();
 
     if (virtio_vdev_has_feature(vdev, VIRTIO_SCSI_F_HOTPLUG)) {
         virtio_scsi_acquire(s);
@@ -841,14 +842,16 @@ static void virtio_scsi_hotunplug(HotplugHandler *hotplug_dev, DeviceState *dev,
         virtio_scsi_release(s);
     }
 
+    aio_disable_external(ctx);
+    qdev_simple_device_unplug_cb(hotplug_dev, dev, errp);
+    aio_enable_external(ctx);
+
     if (s->ctx) {
         virtio_scsi_acquire(s);
         /* If other users keep the BlockBackend in the iothread, that's ok */
         blk_set_aio_context(sd->conf.blk, qemu_get_aio_context(), NULL);
         virtio_scsi_release(s);
     }
-
-    qdev_simple_device_unplug_cb(hotplug_dev, dev, errp);
 }
 
 static struct SCSIBusInfo virtio_scsi_scsi_info = {
diff --git a/hw/tpm/tpm_crb.c b/hw/tpm/tpm_crb.c
index 5e2db9e0c4..db0e3e7c67 100644
--- a/hw/tpm/tpm_crb.c
+++ b/hw/tpm/tpm_crb.c
@@ -273,7 +273,9 @@ static void tpm_crb_reset(void *dev)
     s->be_buffer_size = MIN(tpm_backend_get_buffer_size(s->tpmbe),
                             CRB_CTRL_CMD_SIZE);
 
-    tpm_backend_startup_tpm(s->tpmbe, s->be_buffer_size);
+    if (tpm_backend_startup_tpm(s->tpmbe, s->be_buffer_size) < 0) {
+        exit(1);
+    }
 }
 
 static void tpm_crb_realize(DeviceState *dev, Error **errp)
diff --git a/hw/tpm/tpm_emulator.c b/hw/tpm/tpm_emulator.c
index 1288cbcb8d..fc0b512f4f 100644
--- a/hw/tpm/tpm_emulator.c
+++ b/hw/tpm/tpm_emulator.c
@@ -82,6 +82,40 @@ typedef struct TPMEmulator {
     TPMBlobBuffers state_blobs;
 } TPMEmulator;
 
+struct tpm_error {
+    uint32_t tpm_result;
+    const char *string;
+};
+
+static const struct tpm_error tpm_errors[] = {
+    /* TPM 1.2 error codes */
+    { TPM_BAD_PARAMETER   , "a parameter is bad" },
+    { TPM_FAIL            , "operation failed" },
+    { TPM_KEYNOTFOUND     , "key could not be found" },
+    { TPM_BAD_PARAM_SIZE  , "bad parameter size"},
+    { TPM_ENCRYPT_ERROR   , "encryption error" },
+    { TPM_DECRYPT_ERROR   , "decryption error" },
+    { TPM_BAD_KEY_PROPERTY, "bad key property" },
+    { TPM_BAD_MODE        , "bad (encryption) mode" },
+    { TPM_BAD_VERSION     , "bad version identifier" },
+    { TPM_BAD_LOCALITY    , "bad locality" },
+    /* TPM 2 error codes */
+    { TPM_RC_FAILURE     , "operation failed" },
+    { TPM_RC_LOCALITY    , "bad locality"     },
+    { TPM_RC_INSUFFICIENT, "insufficient amount of data" },
+};
+
+static const char *tpm_emulator_strerror(uint32_t tpm_result)
+{
+    size_t i;
+
+    for (i = 0; i < ARRAY_SIZE(tpm_errors); i++) {
+        if (tpm_errors[i].tpm_result == tpm_result) {
+            return tpm_errors[i].string;
+        }
+    }
+    return "";
+}
 
 static int tpm_emulator_ctrlcmd(TPMEmulator *tpm, unsigned long cmd, void *msg,
                                 size_t msg_len_in, size_t msg_len_out)
@@ -264,7 +298,8 @@ static int tpm_emulator_stop_tpm(TPMBackend *tb)
 
     res = be32_to_cpu(res);
     if (res) {
-        error_report("tpm-emulator: TPM result for CMD_STOP: 0x%x", res);
+        error_report("tpm-emulator: TPM result for CMD_STOP: 0x%x %s", res,
+                     tpm_emulator_strerror(res));
         return -1;
     }
 
@@ -293,8 +328,9 @@ static int tpm_emulator_set_buffer_size(TPMBackend *tb,
 
     psbs.u.resp.tpm_result = be32_to_cpu(psbs.u.resp.tpm_result);
     if (psbs.u.resp.tpm_result != 0) {
-        error_report("tpm-emulator: TPM result for set buffer size : 0x%x",
-                     psbs.u.resp.tpm_result);
+        error_report("tpm-emulator: TPM result for set buffer size : 0x%x %s",
+                     psbs.u.resp.tpm_result,
+                     tpm_emulator_strerror(psbs.u.resp.tpm_result));
         return -1;
     }
 
@@ -339,7 +375,8 @@ static int tpm_emulator_startup_tpm_resume(TPMBackend *tb, size_t buffersize,
 
     res = be32_to_cpu(init.u.resp.tpm_result);
     if (res) {
-        error_report("tpm-emulator: TPM result for CMD_INIT: 0x%x", res);
+        error_report("tpm-emulator: TPM result for CMD_INIT: 0x%x %s", res,
+                     tpm_emulator_strerror(res));
         goto err_exit;
     }
     return 0;
@@ -399,8 +436,9 @@ static int tpm_emulator_reset_tpm_established_flag(TPMBackend *tb,
 
     res = be32_to_cpu(reset_est.u.resp.tpm_result);
     if (res) {
-        error_report("tpm-emulator: TPM result for rest establixhed flag: 0x%x",
-                     res);
+        error_report(
+            "tpm-emulator: TPM result for rest established flag: 0x%x %s",
+            res, tpm_emulator_strerror(res));
         return -1;
     }
 
@@ -638,7 +676,8 @@ static int tpm_emulator_get_state_blob(TPMEmulator *tpm_emu,
     res = be32_to_cpu(pgs.u.resp.tpm_result);
     if (res != 0 && (res & 0x800) == 0) {
         error_report("tpm-emulator: Getting the stateblob (type %d) failed "
-                     "with a TPM error 0x%x", type, res);
+                     "with a TPM error 0x%x %s", type, res,
+                     tpm_emulator_strerror(res));
         return -1;
     }
 
@@ -758,7 +797,8 @@ static int tpm_emulator_set_state_blob(TPMEmulator *tpm_emu,
     tpm_result = be32_to_cpu(pss.u.resp.tpm_result);
     if (tpm_result != 0) {
         error_report("tpm-emulator: Setting the stateblob (type %d) failed "
-                     "with a TPM error 0x%x", type, tpm_result);
+                     "with a TPM error 0x%x %s", type, tpm_result,
+                     tpm_emulator_strerror(tpm_result));
         return -1;
     }
 
@@ -888,8 +928,8 @@ static void tpm_emulator_shutdown(TPMEmulator *tpm_emu)
         error_report("tpm-emulator: Could not cleanly shutdown the TPM: %s",
                      strerror(errno));
     } else if (res != 0) {
-        error_report("tpm-emulator: TPM result for sutdown: 0x%x",
-                     be32_to_cpu(res));
+        error_report("tpm-emulator: TPM result for shutdown: 0x%x %s",
+                     be32_to_cpu(res), tpm_emulator_strerror(be32_to_cpu(res)));
     }
 }
 
diff --git a/hw/tpm/tpm_int.h b/hw/tpm/tpm_int.h
index a4c77fbd7e..3fb28a9d6c 100644
--- a/hw/tpm/tpm_int.h
+++ b/hw/tpm/tpm_int.h
@@ -39,7 +39,16 @@ struct tpm_resp_hdr {
 #define TPM_TAG_RSP_AUTH1_COMMAND 0xc5
 #define TPM_TAG_RSP_AUTH2_COMMAND 0xc6
 
+#define TPM_BAD_PARAMETER         3
 #define TPM_FAIL                  9
+#define TPM_KEYNOTFOUND           13
+#define TPM_BAD_PARAM_SIZE        25
+#define TPM_ENCRYPT_ERROR         32
+#define TPM_DECRYPT_ERROR         33
+#define TPM_BAD_KEY_PROPERTY      40
+#define TPM_BAD_MODE              44
+#define TPM_BAD_VERSION           46
+#define TPM_BAD_LOCALITY          61
 
 #define TPM_ORD_ContinueSelfTest  0x53
 #define TPM_ORD_GetTicks          0xf1
@@ -59,4 +68,8 @@ struct tpm_resp_hdr {
 
 #define TPM2_PT_MAX_COMMAND_SIZE  0x11e
 
+#define TPM_RC_INSUFFICIENT       0x9a
+#define TPM_RC_FAILURE            0x101
+#define TPM_RC_LOCALITY           0x907
+
 #endif /* TPM_TPM_INT_H */
diff --git a/hw/tpm/tpm_tis.c b/hw/tpm/tpm_tis.c
index 174618ac30..d6b3212890 100644
--- a/hw/tpm/tpm_tis.c
+++ b/hw/tpm/tpm_tis.c
@@ -910,7 +910,9 @@ static void tpm_tis_reset(DeviceState *dev)
         s->rw_offset = 0;
     }
 
-    tpm_backend_startup_tpm(s->be_driver, s->be_buffer_size);
+    if (tpm_backend_startup_tpm(s->be_driver, s->be_buffer_size) < 0) {
+        exit(1);
+    }
 }
 
 /* persistent state handling */
diff --git a/hw/virtio/virtio-balloon.c b/hw/virtio/virtio-balloon.c
index e85d1c0d5c..25de154307 100644
--- a/hw/virtio/virtio-balloon.c
+++ b/hw/virtio/virtio-balloon.c
@@ -34,31 +34,53 @@
 
 #define BALLOON_PAGE_SIZE  (1 << VIRTIO_BALLOON_PFN_SHIFT)
 
-struct PartiallyBalloonedPage {
-    RAMBlock *rb;
-    ram_addr_t base;
-    unsigned long bitmap[];
-};
+typedef struct PartiallyBalloonedPage {
+    ram_addr_t base_gpa;
+    unsigned long *bitmap;
+} PartiallyBalloonedPage;
+
+static void virtio_balloon_pbp_free(PartiallyBalloonedPage *pbp)
+{
+    if (!pbp->bitmap) {
+        return;
+    }
+    g_free(pbp->bitmap);
+    pbp->bitmap = NULL;
+}
+
+static void virtio_balloon_pbp_alloc(PartiallyBalloonedPage *pbp,
+                                     ram_addr_t base_gpa,
+                                     long subpages)
+{
+    pbp->base_gpa = base_gpa;
+    pbp->bitmap = bitmap_new(subpages);
+}
+
+static bool virtio_balloon_pbp_matches(PartiallyBalloonedPage *pbp,
+                                       ram_addr_t base_gpa)
+{
+    return pbp->base_gpa == base_gpa;
+}
 
 static void balloon_inflate_page(VirtIOBalloon *balloon,
-                                 MemoryRegion *mr, hwaddr offset)
+                                 MemoryRegion *mr, hwaddr mr_offset,
+                                 PartiallyBalloonedPage *pbp)
 {
-    void *addr = memory_region_get_ram_ptr(mr) + offset;
+    void *addr = memory_region_get_ram_ptr(mr) + mr_offset;
+    ram_addr_t rb_offset, rb_aligned_offset, base_gpa;
     RAMBlock *rb;
     size_t rb_page_size;
     int subpages;
-    ram_addr_t ram_offset, host_page_base;
 
     /* XXX is there a better way to get to the RAMBlock than via a
      * host address? */
-    rb = qemu_ram_block_from_host(addr, false, &ram_offset);
+    rb = qemu_ram_block_from_host(addr, false, &rb_offset);
     rb_page_size = qemu_ram_pagesize(rb);
-    host_page_base = ram_offset & ~(rb_page_size - 1);
 
     if (rb_page_size == BALLOON_PAGE_SIZE) {
         /* Easy case */
 
-        ram_block_discard_range(rb, ram_offset, rb_page_size);
+        ram_block_discard_range(rb, rb_offset, rb_page_size);
         /* We ignore errors from ram_block_discard_range(), because it
          * has already reported them, and failing to discard a balloon
          * page is not fatal */
@@ -74,81 +96,51 @@ static void balloon_inflate_page(VirtIOBalloon *balloon,
     warn_report_once(
 "Balloon used with backing page size > 4kiB, this may not be reliable");
 
+    rb_aligned_offset = QEMU_ALIGN_DOWN(rb_offset, rb_page_size);
     subpages = rb_page_size / BALLOON_PAGE_SIZE;
+    base_gpa = memory_region_get_ram_addr(mr) + mr_offset -
+               (rb_offset - rb_aligned_offset);
 
-    if (balloon->pbp
-        && (rb != balloon->pbp->rb
-            || host_page_base != balloon->pbp->base)) {
+    if (pbp->bitmap && !virtio_balloon_pbp_matches(pbp, base_gpa)) {
         /* We've partially ballooned part of a host page, but now
          * we're trying to balloon part of a different one.  Too hard,
          * give up on the old partial page */
-        g_free(balloon->pbp);
-        balloon->pbp = NULL;
+        virtio_balloon_pbp_free(pbp);
     }
 
-    if (!balloon->pbp) {
-        /* Starting on a new host page */
-        size_t bitlen = BITS_TO_LONGS(subpages) * sizeof(unsigned long);
-        balloon->pbp = g_malloc0(sizeof(PartiallyBalloonedPage) + bitlen);
-        balloon->pbp->rb = rb;
-        balloon->pbp->base = host_page_base;
+    if (!pbp->bitmap) {
+        virtio_balloon_pbp_alloc(pbp, base_gpa, subpages);
     }
 
-    bitmap_set(balloon->pbp->bitmap,
-               (ram_offset - balloon->pbp->base) / BALLOON_PAGE_SIZE,
-               subpages);
+    set_bit((rb_offset - rb_aligned_offset) / BALLOON_PAGE_SIZE,
+            pbp->bitmap);
 
-    if (bitmap_full(balloon->pbp->bitmap, subpages)) {
+    if (bitmap_full(pbp->bitmap, subpages)) {
         /* We've accumulated a full host page, we can actually discard
          * it now */
 
-        ram_block_discard_range(rb, balloon->pbp->base, rb_page_size);
+        ram_block_discard_range(rb, rb_aligned_offset, rb_page_size);
         /* We ignore errors from ram_block_discard_range(), because it
          * has already reported them, and failing to discard a balloon
          * page is not fatal */
-
-        g_free(balloon->pbp);
-        balloon->pbp = NULL;
+        virtio_balloon_pbp_free(pbp);
     }
 }
 
 static void balloon_deflate_page(VirtIOBalloon *balloon,
-                                 MemoryRegion *mr, hwaddr offset)
+                                 MemoryRegion *mr, hwaddr mr_offset)
 {
-    void *addr = memory_region_get_ram_ptr(mr) + offset;
+    void *addr = memory_region_get_ram_ptr(mr) + mr_offset;
+    ram_addr_t rb_offset;
     RAMBlock *rb;
     size_t rb_page_size;
-    ram_addr_t ram_offset, host_page_base;
     void *host_addr;
     int ret;
 
     /* XXX is there a better way to get to the RAMBlock than via a
      * host address? */
-    rb = qemu_ram_block_from_host(addr, false, &ram_offset);
+    rb = qemu_ram_block_from_host(addr, false, &rb_offset);
     rb_page_size = qemu_ram_pagesize(rb);
-    host_page_base = ram_offset & ~(rb_page_size - 1);
-
-    if (balloon->pbp
-        && rb == balloon->pbp->rb
-        && host_page_base == balloon->pbp->base) {
-        int subpages = rb_page_size / BALLOON_PAGE_SIZE;
-
-        /*
-         * This means the guest has asked to discard some of the 4kiB
-         * subpages of a host page, but then changed its mind and
-         * asked to keep them after all.  It's exceedingly unlikely
-         * for a guest to do this in practice, but handle it anyway,
-         * since getting it wrong could mean discarding memory the
-         * guest is still using. */
-        bitmap_clear(balloon->pbp->bitmap,
-                     (ram_offset - balloon->pbp->base) / BALLOON_PAGE_SIZE,
-                     subpages);
-
-        if (bitmap_empty(balloon->pbp->bitmap, subpages)) {
-            g_free(balloon->pbp);
-            balloon->pbp = NULL;
-        }
-    }
 
     host_addr = (void *)((uintptr_t)addr & ~(rb_page_size - 1));
 
@@ -335,16 +327,18 @@ static void virtio_balloon_handle_output(VirtIODevice *vdev, VirtQueue *vq)
     MemoryRegionSection section;
 
     for (;;) {
+        PartiallyBalloonedPage pbp = {};
         size_t offset = 0;
         uint32_t pfn;
+
         elem = virtqueue_pop(vq, sizeof(VirtQueueElement));
         if (!elem) {
-            return;
+            break;
         }
 
         while (iov_to_buf(elem->out_sg, elem->out_num, offset, &pfn, 4) == 4) {
+            unsigned int p = virtio_ldl_p(vdev, &pfn);
             hwaddr pa;
-            int p = virtio_ldl_p(vdev, &pfn);
 
             pa = (hwaddr) p << VIRTIO_BALLOON_PFN_SHIFT;
             offset += 4;
@@ -368,7 +362,7 @@ static void virtio_balloon_handle_output(VirtIODevice *vdev, VirtQueue *vq)
             if (!qemu_balloon_is_inhibited()) {
                 if (vq == s->ivq) {
                     balloon_inflate_page(s, section.mr,
-                                         section.offset_within_region);
+                                         section.offset_within_region, &pbp);
                 } else if (vq == s->dvq) {
                     balloon_deflate_page(s, section.mr, section.offset_within_region);
                 } else {
@@ -381,6 +375,7 @@ static void virtio_balloon_handle_output(VirtIODevice *vdev, VirtQueue *vq)
         virtqueue_push(vq, elem, offset);
         virtio_notify(vdev, vq);
         g_free(elem);
+        virtio_balloon_pbp_free(&pbp);
     }
 }