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| author | Glauber Costa <glommer@redhat.com> | 2011-02-03 14:19:53 -0500 |
|---|---|---|
| committer | Marcelo Tosatti <mtosatti@redhat.com> | 2011-02-14 12:39:46 -0200 |
| commit | b8cc45d6a6f7b6607d5c55817d674f3e5f92ff70 (patch) | |
| tree | 6c48088104c0a82dafed244598b8154613447302 /target-i386/cpu.h | |
| parent | cdea50ede1b8a2efe989fafc57260053b180219f (diff) | |
| download | qemu-b8cc45d6a6f7b6607d5c55817d674f3e5f92ff70.zip qemu-b8cc45d6a6f7b6607d5c55817d674f3e5f92ff70.tar.gz qemu-b8cc45d6a6f7b6607d5c55817d674f3e5f92ff70.tar.bz2 | |
kvm: make tsc stable over migration and machine start
If the machine is stopped, we should not record two different tsc values
upon a save operation. The same problem happens with kvmclock.
But kvmclock is taking a different diretion, being now seen as a separate
device. Since this is unlikely to happen with the tsc, I am taking the
approach here of simply registering a handler for state change, and
using a per-CPUState variable that prevents double updates for the TSC.
Signed-off-by: Glauber Costa <glommer@redhat.com>
CC: Jan Kiszka <jan.kiszka@web.de>
Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com>
Diffstat (limited to 'target-i386/cpu.h')
| -rw-r--r-- | target-i386/cpu.h | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/target-i386/cpu.h b/target-i386/cpu.h index af701a4..5f1df8b 100644 --- a/target-i386/cpu.h +++ b/target-i386/cpu.h @@ -734,6 +734,7 @@ typedef struct CPUX86State { uint32_t sipi_vector; uint32_t cpuid_kvm_features; uint32_t cpuid_svm_features; + bool tsc_valid; /* in order to simplify APIC support, we leave this pointer to the user */ |