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| author | Pavel Dovgalyuk <pavel.dovgaluk@ispras.ru> | 2017-01-24 10:17:47 +0300 |
|---|---|---|
| committer | Paolo Bonzini <pbonzini@redhat.com> | 2017-01-27 18:07:30 +0100 |
| commit | 9c2037d0a41d3d55b17a68e42e815be45036d8d2 (patch) | |
| tree | f67f146cccc9f0c6f1a6ad271f770188238875eb /qemu-options.hx | |
| parent | ac8c19ba742fcbc3d64a5390b32acc6479edd7e1 (diff) | |
| download | qemu-9c2037d0a41d3d55b17a68e42e815be45036d8d2.tar.gz | |
replay: save/load initial state
This patch implements initial vmstate creation or loading at the start
of record/replay. It is needed for rewinding the execution in the replay mode.
v4 changes:
- snapshots are not created by default anymore
v3 changes:
- added rrsnapshot option
Signed-off-by: Pavel Dovgalyuk <pavel.dovgaluk@ispras.ru>
Message-Id: <20170124071746.4572.61449.stgit@PASHA-ISP>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Diffstat (limited to 'qemu-options.hx')
| -rw-r--r-- | qemu-options.hx | 8 |
1 files changed, 6 insertions, 2 deletions
diff --git a/qemu-options.hx b/qemu-options.hx index 588e5beab3..b1baa0d8f9 100644 --- a/qemu-options.hx +++ b/qemu-options.hx @@ -3400,12 +3400,12 @@ re-inject them. ETEXI DEF("icount", HAS_ARG, QEMU_OPTION_icount, \ - "-icount [shift=N|auto][,align=on|off][,sleep=on|off,rr=record|replay,rrfile=<filename>]\n" \ + "-icount [shift=N|auto][,align=on|off][,sleep=on|off,rr=record|replay,rrfile=<filename>,rrsnapshot=<snapshot>]\n" \ " enable virtual instruction counter with 2^N clock ticks per\n" \ " instruction, enable aligning the host and virtual clocks\n" \ " or disable real time cpu sleeping\n", QEMU_ARCH_ALL) STEXI -@item -icount [shift=@var{N}|auto][,rr=record|replay,rrfile=@var{filename}] +@item -icount [shift=@var{N}|auto][,rr=record|replay,rrfile=@var{filename},rrsnapshot=@var{snapshot}] @findex -icount Enable virtual instruction counter. The virtual cpu will execute one instruction every 2^@var{N} ns of virtual time. If @code{auto} is specified @@ -3438,6 +3438,10 @@ when the shift value is high (how high depends on the host machine). When @option{rr} option is specified deterministic record/replay is enabled. Replay log is written into @var{filename} file in record mode and read from this file in replay mode. + +Option rrsnapshot is used to create new vm snapshot named @var{snapshot} +at the start of execution recording. In replay mode this option is used +to load the initial VM state. ETEXI DEF("watchdog", HAS_ARG, QEMU_OPTION_watchdog, \ |