diff options
| author | Peter Maydell <peter.maydell@linaro.org> | 2018-03-16 11:05:03 +0000 |
|---|---|---|
| committer | Peter Maydell <peter.maydell@linaro.org> | 2018-03-16 11:05:03 +0000 |
| commit | 3788c7b6e56fa34ee2a73e41706eb2a2447ba75a (patch) | |
| tree | 8f016e7c9175686b4d7c2d1847c8cc877102dc6b /migration/savevm.c | |
| parent | a57946ff2acb9c0d95c9f127914540586b0b8c21 (diff) | |
| parent | 0790f86861079b1932679d0f011e431aaf4ee9e2 (diff) | |
Merge remote-tracking branch 'remotes/bonzini/tags/for-upstream' into staging
* Record-replay lockstep execution, log dumper and fixes (Alex, Pavel)
* SCSI fix to pass maximum transfer size (Daniel Barboza)
* chardev fixes and improved iothread support (Daniel Berrangé, Peter)
* checkpatch tweak (Eric)
* make help tweak (Marc-André)
* make more PCI NICs available with -net or -nic (myself)
* change default q35 NIC to e1000e (myself)
* SCSI support for NDOB bit (myself)
* membarrier system call support (myself)
* SuperIO refactoring (Philippe)
* miscellaneous cleanups and fixes (Thomas)
# gpg: Signature made Mon 12 Mar 2018 16:10:52 GMT
# gpg: using RSA key BFFBD25F78C7AE83
# gpg: Good signature from "Paolo Bonzini <bonzini@gnu.org>"
# gpg: aka "Paolo Bonzini <pbonzini@redhat.com>"
# Primary key fingerprint: 46F5 9FBD 57D6 12E7 BFD4 E2F7 7E15 100C CD36 69B1
# Subkey fingerprint: F133 3857 4B66 2389 866C 7682 BFFB D25F 78C7 AE83
* remotes/bonzini/tags/for-upstream: (69 commits)
tcg: fix cpu_io_recompile
replay: update documentation
replay: save vmstate of the asynchronous events
replay: don't process async events when warping the clock
scripts/replay-dump.py: replay log dumper
replay: avoid recursive call of checkpoints
replay: check return values of fwrite
replay: push replay_mutex_lock up the call tree
replay: don't destroy mutex at exit
replay: make locking visible outside replay code
replay/replay-internal.c: track holding of replay_lock
replay/replay.c: bump REPLAY_VERSION again
replay: save prior value of the host clock
replay: added replay log format description
replay: fix save/load vm for non-empty queue
replay: fixed replay_enable_events
replay: fix processing async events
cpu-exec: fix exception_index handling
hw/i386/pc: Factor out the superio code
hw/alpha/dp264: Use the TYPE_SMC37C669_SUPERIO
...
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
# Conflicts:
# default-configs/i386-softmmu.mak
# default-configs/x86_64-softmmu.mak
Diffstat (limited to 'migration/savevm.c')
| -rw-r--r-- | migration/savevm.c | 13 |
1 files changed, 13 insertions, 0 deletions
diff --git a/migration/savevm.c b/migration/savevm.c index 358c5b51e2..fbeac658c1 100644 --- a/migration/savevm.c +++ b/migration/savevm.c @@ -54,6 +54,7 @@ #include "qemu/cutils.h" #include "io/channel-buffer.h" #include "io/channel-file.h" +#include "sysemu/replay.h" #ifndef ETH_P_RARP #define ETH_P_RARP 0x8035 @@ -2197,6 +2198,12 @@ int save_snapshot(const char *name, Error **errp) struct tm tm; AioContext *aio_context; + if (!replay_can_snapshot()) { + error_report("Record/replay does not allow making snapshot " + "right now. Try once more later."); + return ret; + } + if (!bdrv_all_can_snapshot(&bs)) { error_setg(errp, "Device '%s' is writable but does not support " "snapshots", bdrv_get_device_name(bs)); @@ -2388,6 +2395,12 @@ int load_snapshot(const char *name, Error **errp) AioContext *aio_context; MigrationIncomingState *mis = migration_incoming_get_current(); + if (!replay_can_snapshot()) { + error_report("Record/replay does not allow loading snapshot " + "right now. Try once more later."); + return -EINVAL; + } + if (!bdrv_all_can_snapshot(&bs)) { error_setg(errp, "Device '%s' is writable but does not support snapshots", |