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| author | Avi Kivity <avi@redhat.com> | 2009-02-15 02:32:07 +0200 |
|---|---|---|
| committer | Avi Kivity <avi@redhat.com> | 2009-02-15 02:47:39 +0200 |
| commit | 516a1a7e9dc80358030fe01aabb3bedf882db9e2 (patch) | |
| tree | f1bf5820a7784d2f6ca46b82aa104230df7a3e20 /arch/x86 | |
| parent | 682edb4c01e690c7c7cd772dbd6f4e0fd74dc572 (diff) | |
| download | linux-516a1a7e9dc80358030fe01aabb3bedf882db9e2.tar.gz linux-516a1a7e9dc80358030fe01aabb3bedf882db9e2.tar.bz2 linux-516a1a7e9dc80358030fe01aabb3bedf882db9e2.zip | |
KVM: VMX: Flush volatile msrs before emulating rdmsr
Some msrs (notable MSR_KERNEL_GS_BASE) are held in the processor registers
and need to be flushed to the vcpu struture before they can be read.
This fixes cygwin longjmp() failure on Windows x64.
Signed-off-by: Avi Kivity <avi@redhat.com>
Diffstat (limited to 'arch/x86')
| -rw-r--r-- | arch/x86/kvm/vmx.c | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/arch/x86/kvm/vmx.c b/arch/x86/kvm/vmx.c index b1fe1422afb1..7611af576829 100644 --- a/arch/x86/kvm/vmx.c +++ b/arch/x86/kvm/vmx.c @@ -903,6 +903,7 @@ static int vmx_get_msr(struct kvm_vcpu *vcpu, u32 msr_index, u64 *pdata) data = vmcs_readl(GUEST_SYSENTER_ESP); break; default: + vmx_load_host_state(to_vmx(vcpu)); msr = find_msr_entry(to_vmx(vcpu), msr_index); if (msr) { data = msr->data; |