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| author | Marcelo Tosatti <mtosatti@redhat.com> | 2014-02-25 22:44:54 -0300 |
|---|---|---|
| committer | Paolo Bonzini <pbonzini@redhat.com> | 2014-02-26 10:11:08 +0100 |
| commit | d3714010c307d26df251c45be9cd12ab6d41f0c4 (patch) | |
| tree | 63393c8f90a2df6ddc7435b65410d54fc63b4bf1 /arch/x86/kvm | |
| parent | 390bd528ae1c14d0b7f5db8225984f98617b3357 (diff) | |
| download | op-kernel-dev-d3714010c307d26df251c45be9cd12ab6d41f0c4.zip op-kernel-dev-d3714010c307d26df251c45be9cd12ab6d41f0c4.tar.gz | |
KVM: x86: emulator_cmpxchg_emulated should mark_page_dirty
emulator_cmpxchg_emulated writes to guest memory, therefore it should
update the dirty bitmap accordingly.
Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com>
Reviewed-by: Xiao Guangrong <xiaoguangrong@linux.vnet.ibm.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Diffstat (limited to 'arch/x86/kvm')
| -rw-r--r-- | arch/x86/kvm/x86.c | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/arch/x86/kvm/x86.c b/arch/x86/kvm/x86.c index 65300191..4cca458 100644 --- a/arch/x86/kvm/x86.c +++ b/arch/x86/kvm/x86.c @@ -4399,6 +4399,7 @@ static int emulator_cmpxchg_emulated(struct x86_emulate_ctxt *ctxt, if (!exchanged) return X86EMUL_CMPXCHG_FAILED; + mark_page_dirty(vcpu->kvm, gpa >> PAGE_SHIFT); kvm_mmu_pte_write(vcpu, gpa, new, bytes); return X86EMUL_CONTINUE; |
