Merge tag 'staging-pull-request' of https://gitlab.com/peterx/qemu into staging

Migration/Memory Pull for 10.2

- PeterX's fix on tls warning for preempt channel when migratino completes
- Arun's series to enhance error reporting for vTPM and migration framework
- PeterX's patch to cleanup multifd send TLS BYE messages
- Juraj's fix on postcopy start state transition when switchover failed
- Yanfei's fix to migrate APIC before VFIO-PCI to avoid irq fallbacks
- Dan's cleanup to simplify error reporting in qemu_fill_buffer()
- PeterM's fix on address space leak when cpu hot plug / unplug
- Steve's cpr-exec wholeset

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#
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# ZGhhdC5jb20ACgkQO1/MzfOr1wZ+mAEA1l2RS9sZS1W3vXQMCNb+Nu8Uo2p+e5Qj
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# =asUv
# -----END PGP SIGNATURE-----
# gpg: Signature made Fri 03 Oct 2025 08:39:14 AM PDT
# gpg:                using EDDSA key B9184DC20CC457DACF7DD1A93B5FCCCDF3ABD706
# gpg:                issuer "peterx@redhat.com"
# gpg: Good signature from "Peter Xu <xzpeter@gmail.com>" [unknown]
# gpg:                 aka "Peter Xu <peterx@redhat.com>" [unknown]
# gpg: WARNING: The key's User ID is not certified with a trusted signature!
# gpg:          There is no indication that the signature belongs to the owner.
# Primary key fingerprint: B918 4DC2 0CC4 57DA CF7D  D1A9 3B5F CCCD F3AB D706

* tag 'staging-pull-request' of https://gitlab.com/peterx/qemu: (45 commits)
  migration-test: test cpr-exec
  vfio: cpr-exec mode
  migration: cpr-exec docs
  migration: cpr-exec mode
  migration: cpr-exec save and load
  migration: cpr-exec-command parameter
  oslib: qemu_clear_cloexec
  migration: add cpr_walk_fd
  migration: multi-mode notifier
  migration: simplify error reporting after channel read
  physmem: Destroy all CPU AddressSpaces on unrealize
  memory: New AS helper to serialize destroy+free
  include/system/memory.h: Clarify address_space_destroy() behaviour
  migration: ensure APIC is loaded prior to VFIO PCI devices
  migration: Fix state transition in postcopy_start() error handling
  migration/multifd/tls: Cleanup BYE message processing on sender side
  migration: HMP: Adjust the order of output fields
  migration: Make migration_has_failed() work even for CANCELLING
  io/crypto: Move tls premature termination handling into QIO layer
  backends/tpm: Propagate vTPM error on migration failure
  ...

Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
This commit is contained in:
Richard Henderson
2025-10-04 09:10:58 -07:00
58 changed files with 1352 additions and 410 deletions
+21 -19
View File
@@ -819,7 +819,8 @@ static int tpm_emulator_get_state_blobs(TPMEmulator *tpm_emu)
static int tpm_emulator_set_state_blob(TPMEmulator *tpm_emu,
uint32_t type,
TPMSizedBuffer *tsb,
uint32_t flags)
uint32_t flags,
Error **errp)
{
ssize_t n;
ptm_setstate pss;
@@ -838,17 +839,18 @@ static int tpm_emulator_set_state_blob(TPMEmulator *tpm_emu,
/* write the header only */
if (tpm_emulator_ctrlcmd(tpm_emu, CMD_SET_STATEBLOB, &pss,
offsetof(ptm_setstate, u.req.data), 0, 0) < 0) {
error_report("tpm-emulator: could not set state blob type %d : %s",
type, strerror(errno));
error_setg_errno(errp, errno,
"tpm-emulator: could not set state blob type %d",
type);
return -1;
}
/* now the body */
n = qemu_chr_fe_write_all(&tpm_emu->ctrl_chr, tsb->buffer, tsb->size);
if (n != tsb->size) {
error_report("tpm-emulator: Writing the stateblob (type %d) "
"failed; could not write %u bytes, but only %zd",
type, tsb->size, n);
error_setg(errp, "tpm-emulator: Writing the stateblob (type %d) "
"failed; could not write %u bytes, but only %zd",
type, tsb->size, n);
return -1;
}
@@ -856,17 +858,17 @@ static int tpm_emulator_set_state_blob(TPMEmulator *tpm_emu,
n = qemu_chr_fe_read_all(&tpm_emu->ctrl_chr,
(uint8_t *)&pss, sizeof(pss.u.resp));
if (n != sizeof(pss.u.resp)) {
error_report("tpm-emulator: Reading response from writing stateblob "
"(type %d) failed; expected %zu bytes, got %zd", type,
sizeof(pss.u.resp), n);
error_setg(errp, "tpm-emulator: Reading response from writing "
"stateblob (type %d) failed; expected %zu bytes, "
"got %zd", type, sizeof(pss.u.resp), n);
return -1;
}
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 %s", type, tpm_result,
tpm_emulator_strerror(tpm_result));
error_setg(errp, "tpm-emulator: Setting the stateblob (type %d) "
"failed with a TPM error 0x%x %s", type, tpm_result,
tpm_emulator_strerror(tpm_result));
return -1;
}
@@ -880,7 +882,7 @@ static int tpm_emulator_set_state_blob(TPMEmulator *tpm_emu,
*
* Returns a negative errno code in case of error.
*/
static int tpm_emulator_set_state_blobs(TPMBackend *tb)
static int tpm_emulator_set_state_blobs(TPMBackend *tb, Error **errp)
{
TPMEmulator *tpm_emu = TPM_EMULATOR(tb);
TPMBlobBuffers *state_blobs = &tpm_emu->state_blobs;
@@ -894,13 +896,13 @@ static int tpm_emulator_set_state_blobs(TPMBackend *tb)
if (tpm_emulator_set_state_blob(tpm_emu, PTM_BLOB_TYPE_PERMANENT,
&state_blobs->permanent,
state_blobs->permanent_flags) < 0 ||
state_blobs->permanent_flags, errp) < 0 ||
tpm_emulator_set_state_blob(tpm_emu, PTM_BLOB_TYPE_VOLATILE,
&state_blobs->volatil,
state_blobs->volatil_flags) < 0 ||
state_blobs->volatil_flags, errp) < 0 ||
tpm_emulator_set_state_blob(tpm_emu, PTM_BLOB_TYPE_SAVESTATE,
&state_blobs->savestate,
state_blobs->savestate_flags) < 0) {
state_blobs->savestate_flags, errp) < 0) {
return -EIO;
}
@@ -948,12 +950,12 @@ static void tpm_emulator_vm_state_change(void *opaque, bool running,
*
* Returns negative errno codes in case of error.
*/
static int tpm_emulator_post_load(void *opaque, int version_id)
static int tpm_emulator_post_load(void *opaque, int version_id, Error **errp)
{
TPMBackend *tb = opaque;
int ret;
ret = tpm_emulator_set_state_blobs(tb);
ret = tpm_emulator_set_state_blobs(tb, errp);
if (ret < 0) {
return ret;
}
@@ -969,7 +971,7 @@ static const VMStateDescription vmstate_tpm_emulator = {
.name = "tpm-emulator",
.version_id = 0,
.pre_save = tpm_emulator_pre_save,
.post_load = tpm_emulator_post_load,
.post_load_errp = tpm_emulator_post_load,
.fields = (const VMStateField[]) {
VMSTATE_UINT32(state_blobs.permanent_flags, TPMEmulator),
VMSTATE_UINT32(state_blobs.permanent.size, TPMEmulator),
+2 -5
View File
@@ -552,7 +552,6 @@ ssize_t
qcrypto_tls_session_read(QCryptoTLSSession *session,
char *buf,
size_t len,
bool gracefulTermination,
Error **errp)
{
ssize_t ret;
@@ -570,9 +569,8 @@ qcrypto_tls_session_read(QCryptoTLSSession *session,
if (ret < 0) {
if (ret == GNUTLS_E_AGAIN) {
return QCRYPTO_TLS_SESSION_ERR_BLOCK;
} else if ((ret == GNUTLS_E_PREMATURE_TERMINATION) &&
gracefulTermination){
return 0;
} else if (ret == GNUTLS_E_PREMATURE_TERMINATION) {
return QCRYPTO_TLS_SESSION_PREMATURE_TERMINATION;
} else {
if (session->rerr) {
error_propagate(errp, session->rerr);
@@ -789,7 +787,6 @@ ssize_t
qcrypto_tls_session_read(QCryptoTLSSession *sess,
char *buf,
size_t len,
bool gracefulTermination,
Error **errp)
{
error_setg(errp, "TLS requires GNUTLS support");
+111 -1
View File
@@ -5,7 +5,7 @@ CPR is the umbrella name for a set of migration modes in which the
VM is migrated to a new QEMU instance on the same host. It is
intended for use when the goal is to update host software components
that run the VM, such as QEMU or even the host kernel. At this time,
the cpr-reboot and cpr-transfer modes are available.
the cpr-reboot, cpr-transfer, and cpr-exec modes are available.
Because QEMU is restarted on the same host, with access to the same
local devices, CPR is allowed in certain cases where normal migration
@@ -324,3 +324,113 @@ descriptors from old to new QEMU. In the future, descriptors for
vhost, and char devices could be transferred,
preserving those devices and their kernel state without interruption,
even if they do not explicitly support live migration.
cpr-exec mode
-------------
In this mode, QEMU stops the VM, writes VM state to the migration
URI, and directly exec's a new version of QEMU on the same host,
replacing the original process while retaining its PID. Guest RAM is
preserved in place, albeit with new virtual addresses. The user
completes the migration by specifying the ``-incoming`` option, and
by issuing the ``migrate-incoming`` command if necessary; see details
below.
This mode supports VFIO/IOMMUFD devices by preserving device
descriptors and hence kernel state across the exec, even for devices
that do not support live migration.
Because the old and new QEMU instances are not active concurrently,
the URI cannot be a type that streams data from one instance to the
other.
This mode does not require a channel of type ``cpr``. The information
that is passed over that channel for cpr-transfer mode is instead
serialized to a memfd, the number of the fd is saved in the
QEMU_CPR_EXEC_STATE environment variable during the exec of new QEMU.
and new QEMU mmaps the memfd.
Usage
^^^^^
Arguments for the new QEMU process are taken from the
@cpr-exec-command parameter. The first argument should be the
path of a new QEMU binary, or a prefix command that exec's the
new QEMU binary, and the arguments should include the ''-incoming''
option.
Memory backend objects must have the ``share=on`` attribute.
The VM must be started with the ``-machine aux-ram-share=on`` option.
Outgoing:
* Set the migration mode parameter to ``cpr-exec``.
* Set the ``cpr-exec-command`` parameter.
* Issue the ``migrate`` command. It is recommended that the URI be
a ``file`` type, but one can use other types such as ``exec``,
provided the command captures all the data from the outgoing side,
and provides all the data to the incoming side.
Incoming:
* You do not need to explicitly start new QEMU. It is started as
a side effect of the migrate command above.
* If the VM was running when the outgoing ``migrate`` command was
issued, then QEMU automatically resumes VM execution.
Example 1: incoming URI
^^^^^^^^^^^^^^^^^^^^^^^
In these examples, we simply restart the same version of QEMU, but in
a real scenario one would set a new QEMU binary path in
cpr-exec-command.
::
# qemu-kvm -monitor stdio
-object memory-backend-memfd,id=ram0,size=4G
-machine memory-backend=ram0
-machine aux-ram-share=on
...
QEMU 10.2.50 monitor - type 'help' for more information
(qemu) info status
VM status: running
(qemu) migrate_set_parameter mode cpr-exec
(qemu) migrate_set_parameter cpr-exec-command qemu-kvm ... -incoming file:vm.state
(qemu) migrate -d file:vm.state
(qemu) QEMU 10.2.50 monitor - type 'help' for more information
(qemu) info status
VM status: running
Example 2: incoming defer
^^^^^^^^^^^^^^^^^^^^^^^^^
::
# qemu-kvm -monitor stdio
-object memory-backend-memfd,id=ram0,size=4G
-machine memory-backend=ram0
-machine aux-ram-share=on
...
QEMU 10.2.50 monitor - type 'help' for more information
(qemu) info status
VM status: running
(qemu) migrate_set_parameter mode cpr-exec
(qemu) migrate_set_parameter cpr-exec-command qemu-kvm ... -incoming defer
(qemu) migrate -d file:vm.state
(qemu) QEMU 10.2.50 monitor - type 'help' for more information
(qemu) info status
status: paused (inmigrate)
(qemu) migrate_incoming file:vm.state
(qemu) info status
VM status: running
Caveats
^^^^^^^
cpr-exec mode may not be used with postcopy, background-snapshot,
or COLO.
cpr-exec mode requires permission to use the exec system call, which
is denied by certain sandbox options, such as spawn.
The guest pause time increases for large guest RAM backed by small pages.
+19
View File
@@ -444,6 +444,25 @@ The functions to do that are inside a vmstate definition, and are called:
This function is called after we save the state of one device
(even upon failure, unless the call to pre_save returned an error).
Following are the errp variants of these functions.
- ``int (*pre_load_errp)(void *opaque, Error **errp);``
This function is called before we load the state of one device.
- ``int (*post_load_errp)(void *opaque, int version_id, Error **errp);``
This function is called after we load the state of one device.
- ``int (*pre_save_errp)(void *opaque, Error **errp);``
This function is called before we save the state of one device.
New impls should preferentally use 'errp' variants of these
methods and existing impls incrementally converted.
The variants without 'errp' are intended to be removed
once all usage is converted.
Example: You can look at hpet.c, that uses the first three functions
to massage the state that is transferred.
+1 -1
View File
@@ -1009,7 +1009,7 @@ ERST
{
.name = "migrate_set_parameter",
.args_type = "parameter:s,value:s",
.args_type = "parameter:s,value:S",
.params = "parameter value",
.help = "Set the parameter for migration",
.cmd = hmp_migrate_set_parameter,
+1
View File
@@ -294,6 +294,7 @@ void cpu_exec_unrealizefn(CPUState *cpu)
* accel_cpu_common_unrealize, which may free fields using call_rcu.
*/
accel_cpu_common_unrealize(cpu);
cpu_destroy_address_spaces(cpu);
}
static void cpu_common_initfn(Object *obj)
+3 -2
View File
@@ -1248,7 +1248,8 @@ static int virtio_gpu_save(QEMUFile *f, void *opaque, size_t size,
}
qemu_put_be32(f, 0); /* end of list */
return vmstate_save_state(f, &vmstate_virtio_gpu_scanouts, g, NULL);
return vmstate_save_state(f, &vmstate_virtio_gpu_scanouts, g, NULL,
&error_fatal);
}
static bool virtio_gpu_load_restore_mapping(VirtIOGPU *g,
@@ -1347,7 +1348,7 @@ static int virtio_gpu_load(QEMUFile *f, void *opaque, size_t size,
}
/* load & apply scanout state */
vmstate_load_state(f, &vmstate_virtio_gpu_scanouts, g, 1);
vmstate_load_state(f, &vmstate_virtio_gpu_scanouts, g, 1, &error_fatal);
return 0;
}
+1
View File
@@ -379,6 +379,7 @@ static const VMStateDescription vmstate_apic_common = {
.pre_load = apic_pre_load,
.pre_save = apic_dispatch_pre_save,
.post_load = apic_dispatch_post_load,
.priority = MIG_PRI_APIC,
.fields = (const VMStateField[]) {
VMSTATE_UINT32(apicbase, APICCommonState),
VMSTATE_UINT8(id, APICCommonState),
+3 -2
View File
@@ -926,7 +926,7 @@ void pci_device_save(PCIDevice *s, QEMUFile *f)
* This makes us compatible with old devices
* which never set or clear this bit. */
s->config[PCI_STATUS] &= ~PCI_STATUS_INTERRUPT;
vmstate_save_state(f, &vmstate_pci_device, s, NULL);
vmstate_save_state(f, &vmstate_pci_device, s, NULL, &error_fatal);
/* Restore the interrupt status bit. */
pci_update_irq_status(s);
}
@@ -934,7 +934,8 @@ void pci_device_save(PCIDevice *s, QEMUFile *f)
int pci_device_load(PCIDevice *s, QEMUFile *f)
{
int ret;
ret = vmstate_load_state(f, &vmstate_pci_device, s, s->version_id);
ret = vmstate_load_state(f, &vmstate_pci_device, s, s->version_id,
&error_fatal);
/* Restore the interrupt status bit. */
pci_update_irq_status(s);
return ret;
+2 -2
View File
@@ -1130,13 +1130,13 @@ static int virtio_ccw_load_queue(DeviceState *d, int n, QEMUFile *f)
static void virtio_ccw_save_config(DeviceState *d, QEMUFile *f)
{
VirtioCcwDevice *dev = VIRTIO_CCW_DEVICE(d);
vmstate_save_state(f, &vmstate_virtio_ccw_dev, dev, NULL);
vmstate_save_state(f, &vmstate_virtio_ccw_dev, dev, NULL, &error_fatal);
}
static int virtio_ccw_load_config(DeviceState *d, QEMUFile *f)
{
VirtioCcwDevice *dev = VIRTIO_CCW_DEVICE(d);
return vmstate_load_state(f, &vmstate_virtio_ccw_dev, dev, 1);
return vmstate_load_state(f, &vmstate_virtio_ccw_dev, dev, 1, &error_fatal);
}
static void virtio_ccw_pre_plugged(DeviceState *d, Error **errp)
+4 -2
View File
@@ -630,7 +630,7 @@ static void vscsi_save_request(QEMUFile *f, SCSIRequest *sreq)
vscsi_req *req = sreq->hba_private;
assert(req->active);
vmstate_save_state(f, &vmstate_spapr_vscsi_req, req, NULL);
vmstate_save_state(f, &vmstate_spapr_vscsi_req, req, NULL, &error_fatal);
trace_spapr_vscsi_save_request(req->qtag, req->cur_desc_num,
req->cur_desc_offset);
@@ -642,15 +642,17 @@ static void *vscsi_load_request(QEMUFile *f, SCSIRequest *sreq)
VSCSIState *s = VIO_SPAPR_VSCSI_DEVICE(bus->qbus.parent);
vscsi_req *req;
int rc;
Error *local_err = NULL;
assert(sreq->tag < VSCSI_REQ_LIMIT);
req = &s->reqs[sreq->tag];
assert(!req->active);
memset(req, 0, sizeof(*req));
rc = vmstate_load_state(f, &vmstate_spapr_vscsi_req, req, 1);
rc = vmstate_load_state(f, &vmstate_spapr_vscsi_req, req, 1, &local_err);
if (rc) {
fprintf(stderr, "VSCSI: failed loading request tag#%u\n", sreq->tag);
error_report_err(local_err);
return NULL;
}
assert(req->active);
+2 -1
View File
@@ -972,7 +972,8 @@ static bool vfio_legacy_attach_device(const char *name, VFIODevice *vbasedev,
error_setg(&vbasedev->cpr.mdev_blocker,
"CPR does not support vfio mdev %s", vbasedev->name);
if (migrate_add_blocker_modes(&vbasedev->cpr.mdev_blocker, errp,
MIG_MODE_CPR_TRANSFER, -1) < 0) {
MIG_MODE_CPR_TRANSFER, MIG_MODE_CPR_EXEC,
-1) < 0) {
goto hiod_unref_exit;
}
}
+2 -1
View File
@@ -159,7 +159,8 @@ bool vfio_iommufd_cpr_register_iommufd(IOMMUFDBackend *be, Error **errp)
if (!vfio_cpr_supported(be, cpr_blocker)) {
return migrate_add_blocker_modes(cpr_blocker, errp,
MIG_MODE_CPR_TRANSFER, -1) == 0;
MIG_MODE_CPR_TRANSFER,
MIG_MODE_CPR_EXEC, -1) == 0;
}
vmstate_register(NULL, -1, &iommufd_cpr_vmstate, be);
+5 -4
View File
@@ -179,16 +179,17 @@ bool vfio_legacy_cpr_register_container(VFIOLegacyContainer *container,
if (!vfio_cpr_supported(container, cpr_blocker)) {
return migrate_add_blocker_modes(cpr_blocker, errp,
MIG_MODE_CPR_TRANSFER, -1) == 0;
MIG_MODE_CPR_TRANSFER,
MIG_MODE_CPR_EXEC, -1) == 0;
}
vfio_cpr_add_kvm_notifier();
vmstate_register(NULL, -1, &vfio_container_vmstate, container);
migration_add_notifier_mode(&container->cpr.transfer_notifier,
vfio_cpr_fail_notifier,
MIG_MODE_CPR_TRANSFER);
migration_add_notifier_modes(&container->cpr.transfer_notifier,
vfio_cpr_fail_notifier,
MIG_MODE_CPR_TRANSFER, MIG_MODE_CPR_EXEC, -1);
return true;
}
+7 -6
View File
@@ -195,9 +195,10 @@ static int vfio_cpr_kvm_close_notifier(NotifierWithReturn *notifier,
void vfio_cpr_add_kvm_notifier(void)
{
if (!kvm_close_notifier.notify) {
migration_add_notifier_mode(&kvm_close_notifier,
vfio_cpr_kvm_close_notifier,
MIG_MODE_CPR_TRANSFER);
migration_add_notifier_modes(&kvm_close_notifier,
vfio_cpr_kvm_close_notifier,
MIG_MODE_CPR_TRANSFER, MIG_MODE_CPR_EXEC,
-1);
}
}
@@ -282,9 +283,9 @@ static int vfio_cpr_pci_notifier(NotifierWithReturn *notifier,
void vfio_cpr_pci_register_device(VFIOPCIDevice *vdev)
{
migration_add_notifier_mode(&vdev->cpr.transfer_notifier,
vfio_cpr_pci_notifier,
MIG_MODE_CPR_TRANSFER);
migration_add_notifier_modes(&vdev->cpr.transfer_notifier,
vfio_cpr_pci_notifier,
MIG_MODE_CPR_TRANSFER, MIG_MODE_CPR_EXEC, -1);
}
void vfio_cpr_pci_unregister_device(VFIOPCIDevice *vdev)
+6 -3
View File
@@ -2821,8 +2821,8 @@ static int vfio_pci_save_config(VFIODevice *vbasedev, QEMUFile *f, Error **errp)
{
VFIOPCIDevice *vdev = container_of(vbasedev, VFIOPCIDevice, vbasedev);
return vmstate_save_state_with_err(f, &vmstate_vfio_pci_config, vdev, NULL,
errp);
return vmstate_save_state(f, &vmstate_vfio_pci_config, vdev, NULL,
errp);
}
static int vfio_pci_load_config(VFIODevice *vbasedev, QEMUFile *f)
@@ -2831,13 +2831,16 @@ static int vfio_pci_load_config(VFIODevice *vbasedev, QEMUFile *f)
PCIDevice *pdev = PCI_DEVICE(vdev);
pcibus_t old_addr[PCI_NUM_REGIONS - 1];
int bar, ret;
Error *local_err = NULL;
for (bar = 0; bar < PCI_ROM_SLOT; bar++) {
old_addr[bar] = pdev->io_regions[bar].addr;
}
ret = vmstate_load_state(f, &vmstate_vfio_pci_config, vdev, 1);
ret = vmstate_load_state(f, &vmstate_vfio_pci_config, vdev, 1,
&local_err);
if (ret) {
error_report_err(local_err);
return ret;
}
+3 -2
View File
@@ -34,6 +34,7 @@
#include "qemu/error-report.h"
#include "qemu/log.h"
#include "trace.h"
#include "qapi/error.h"
static bool virtio_mmio_ioeventfd_enabled(DeviceState *d)
{
@@ -612,14 +613,14 @@ static void virtio_mmio_save_extra_state(DeviceState *opaque, QEMUFile *f)
{
VirtIOMMIOProxy *proxy = VIRTIO_MMIO(opaque);
vmstate_save_state(f, &vmstate_virtio_mmio, proxy, NULL);
vmstate_save_state(f, &vmstate_virtio_mmio, proxy, NULL, &error_fatal);
}
static int virtio_mmio_load_extra_state(DeviceState *opaque, QEMUFile *f)
{
VirtIOMMIOProxy *proxy = VIRTIO_MMIO(opaque);
return vmstate_load_state(f, &vmstate_virtio_mmio, proxy, 1);
return vmstate_load_state(f, &vmstate_virtio_mmio, proxy, 1, &error_fatal);
}
static bool virtio_mmio_has_extra_state(DeviceState *opaque)
+2 -2
View File
@@ -154,14 +154,14 @@ static void virtio_pci_save_extra_state(DeviceState *d, QEMUFile *f)
{
VirtIOPCIProxy *proxy = to_virtio_pci_proxy(d);
vmstate_save_state(f, &vmstate_virtio_pci, proxy, NULL);
vmstate_save_state(f, &vmstate_virtio_pci, proxy, NULL, &error_fatal);
}
static int virtio_pci_load_extra_state(DeviceState *d, QEMUFile *f)
{
VirtIOPCIProxy *proxy = to_virtio_pci_proxy(d);
return vmstate_load_state(f, &vmstate_virtio_pci, proxy, 1);
return vmstate_load_state(f, &vmstate_virtio_pci, proxy, 1, &error_fatal);
}
static void virtio_pci_save_queue(DeviceState *d, int n, QEMUFile *f)
+9 -4
View File
@@ -2992,6 +2992,7 @@ int virtio_save(VirtIODevice *vdev, QEMUFile *f)
VirtioDeviceClass *vdc = VIRTIO_DEVICE_GET_CLASS(vdev);
uint32_t guest_features_lo = (vdev->guest_features & 0xffffffff);
int i;
Error *local_err = NULL;
if (k->save_config) {
k->save_config(qbus->parent, f);
@@ -3035,14 +3036,15 @@ int virtio_save(VirtIODevice *vdev, QEMUFile *f)
}
if (vdc->vmsd) {
int ret = vmstate_save_state(f, vdc->vmsd, vdev, NULL);
int ret = vmstate_save_state(f, vdc->vmsd, vdev, NULL, &local_err);
if (ret) {
error_report_err(local_err);
return ret;
}
}
/* Subsections */
return vmstate_save_state(f, &vmstate_virtio, vdev, NULL);
return vmstate_save_state(f, &vmstate_virtio, vdev, NULL, &error_fatal);
}
/* A wrapper for use as a VMState .put function */
@@ -3235,6 +3237,7 @@ virtio_load(VirtIODevice *vdev, QEMUFile *f, int version_id)
BusState *qbus = qdev_get_parent_bus(DEVICE(vdev));
VirtioBusClass *k = VIRTIO_BUS_GET_CLASS(qbus);
VirtioDeviceClass *vdc = VIRTIO_DEVICE_GET_CLASS(vdev);
Error *local_err = NULL;
/*
* We poison the endianness to ensure it does not get used before
@@ -3327,15 +3330,17 @@ virtio_load(VirtIODevice *vdev, QEMUFile *f, int version_id)
}
if (vdc->vmsd) {
ret = vmstate_load_state(f, vdc->vmsd, vdev, version_id);
ret = vmstate_load_state(f, vdc->vmsd, vdev, version_id, &local_err);
if (ret) {
error_report_err(local_err);
return ret;
}
}
/* Subsections */
ret = vmstate_load_state(f, &vmstate_virtio, vdev, 1);
ret = vmstate_load_state(f, &vmstate_virtio, vdev, 1, &local_err);
if (ret) {
error_report_err(local_err);
return ret;
}
+3 -7
View File
@@ -110,6 +110,7 @@
typedef struct QCryptoTLSSession QCryptoTLSSession;
#define QCRYPTO_TLS_SESSION_ERR_BLOCK -2
#define QCRYPTO_TLS_SESSION_PREMATURE_TERMINATION -3
/**
* qcrypto_tls_session_new:
@@ -259,7 +260,6 @@ ssize_t qcrypto_tls_session_write(QCryptoTLSSession *sess,
* @sess: the TLS session object
* @buf: to fill with plain text received
* @len: the length of @buf
* @gracefulTermination: treat premature termination as graceful EOF
* @errp: pointer to hold returned error object
*
* Receive up to @len bytes of data from the remote peer
@@ -267,22 +267,18 @@ ssize_t qcrypto_tls_session_write(QCryptoTLSSession *sess,
* qcrypto_tls_session_set_callbacks(), decrypt it and
* store it in @buf.
*
* If @gracefulTermination is true, then a premature termination
* of the TLS session will be treated as indicating EOF, as
* opposed to an error.
*
* It is an error to call this before
* qcrypto_tls_session_handshake() returns
* QCRYPTO_TLS_HANDSHAKE_COMPLETE
*
* Returns: the number of bytes received,
* or QCRYPTO_TLS_SESSION_ERR_BLOCK if the receive would block,
* or -1 on error.
* or QCRYPTO_TLS_SESSION_PREMATURE_TERMINATION if a premature termination
* is detected, or -1 on error.
*/
ssize_t qcrypto_tls_session_read(QCryptoTLSSession *sess,
char *buf,
size_t len,
bool gracefulTermination,
Error **errp);
/**

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