Gitweb:
http://git.kernel.org/git/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=404fb881b82cf0cf6981832f8d31a7484e4dee81
Commit: 404fb881b82cf0cf6981832f8d31a7484e4dee81
Parent: 8d379a7c069179a98616c9cac6bb2a06a500de49
Author: Amit Shah <[EMAIL PROTECTED]>
AuthorDate: Mon Nov 19 17:57:35 2007 +0200
Committer: Avi Kivity <[EMAIL PROTECTED]>
CommitDate: Tue Nov 27 15:38:18 2007 +0200
KVM: SVM: Fix FPU leak while emulating clts
The clts code didn't use set_cr0 properly, so our lazy FPU
processing wasn't being done by the clts instruction at all.
(this isn't called on Intel as the hardware does the decode for us)
Signed-off-by: Amit Shah <[EMAIL PROTECTED]>
Signed-off-by: Avi Kivity <[EMAIL PROTECTED]>
---
drivers/kvm/kvm_main.c | 3 +--
1 files changed, 1 insertions(+), 2 deletions(-)
diff --git a/drivers/kvm/kvm_main.c b/drivers/kvm/kvm_main.c
index 07ae280..47c10b8 100644
--- a/drivers/kvm/kvm_main.c
+++ b/drivers/kvm/kvm_main.c
@@ -1188,8 +1188,7 @@ int emulate_invlpg(struct kvm_vcpu *vcpu, gva_t address)
int emulate_clts(struct kvm_vcpu *vcpu)
{
- vcpu->cr0 &= ~X86_CR0_TS;
- kvm_x86_ops->set_cr0(vcpu, vcpu->cr0);
+ kvm_x86_ops->set_cr0(vcpu, vcpu->cr0 & ~X86_CR0_TS);
return X86EMUL_CONTINUE;
}
-
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