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| Started by | Ben Hutchings <ben@decadent.org.uk> |
|---|---|
| First post | 2016-04-27 02:10 +0200 |
| Last post | 2016-04-27 02:10 +0200 |
| Articles | 1 — 1 participant |
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[PATCH 3.16 133/217] KVM: VMX: avoid guest hang on invalid invept instruction Ben Hutchings <ben@decadent.org.uk> - 2016-04-27 02:10 +0200
| From | Ben Hutchings <ben@decadent.org.uk> |
|---|---|
| Date | 2016-04-27 02:10 +0200 |
| Subject | [PATCH 3.16 133/217] KVM: VMX: avoid guest hang on invalid invept instruction |
| Message-ID | <rsldj-8vJ-75@gated-at.bofh.it> |
3.16.35-rc1 review patch. If anyone has any objections, please let me know.
------------------
From: Paolo Bonzini <pbonzini@redhat.com>
commit 2849eb4f99d54925c543db12917127f88b3c38ff upstream.
A guest executing an invalid invept instruction would hang
because the instruction pointer was not updated.
Fixes: bfd0a56b90005f8c8a004baf407ad90045c2b11e
Reviewed-by: David Matlack <dmatlack@google.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Ben Hutchings <ben@decadent.org.uk>
---
arch/x86/kvm/vmx.c | 1 +
1 file changed, 1 insertion(+)
--- a/arch/x86/kvm/vmx.c
+++ b/arch/x86/kvm/vmx.c
@@ -6601,6 +6601,7 @@ static int handle_invept(struct kvm_vcpu
if (!(types & (1UL << type))) {
nested_vmx_failValid(vcpu,
VMXERR_INVALID_OPERAND_TO_INVEPT_INVVPID);
+ skip_emulated_instruction(vcpu);
return 1;
}
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