Fixes sf bug 1614113 (segfaults in nbench).
Signed-off-by: Avi Kivity <[email protected]>
Index: linux-2.6/drivers/kvm/svm.c
===================================================================
--- linux-2.6.orig/drivers/kvm/svm.c
+++ linux-2.6/drivers/kvm/svm.c
@@ -575,6 +575,8 @@ static int svm_create_vcpu(struct kvm_vc
memset(vcpu->svm->db_regs, 0, sizeof(vcpu->svm->db_regs));
init_vmcb(vcpu->svm->vmcb);
+ fx_init(vcpu);
+
return 0;
out2:
@@ -1387,6 +1389,10 @@ again:
save_db_regs(vcpu->svm->host_db_regs);
load_db_regs(vcpu->svm->db_regs);
}
+
+ fx_save(vcpu->host_fx_image);
+ fx_restore(vcpu->guest_fx_image);
+
asm volatile (
#ifdef CONFIG_X86_64
"push %%rbx; push %%rcx; push %%rdx;"
@@ -1496,6 +1502,9 @@ again:
#endif
: "cc", "memory" );
+ fx_save(vcpu->guest_fx_image);
+ fx_restore(vcpu->host_fx_image);
+
if ((vcpu->svm->vmcb->save.dr7 & 0xff))
load_db_regs(vcpu->svm->host_db_regs);
-
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