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[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index] [xen staging-4.12] x86/cpuid: Fix APIC bit clearing
commit 07fd5d3598cd9772f15b0ea740c0691cc9569186
Author: Fam Zheng <famzheng@xxxxxxxxxx>
AuthorDate: Fri Aug 7 17:32:02 2020 +0200
Commit: Jan Beulich <jbeulich@xxxxxxxx>
CommitDate: Fri Aug 7 17:32:02 2020 +0200
x86/cpuid: Fix APIC bit clearing
The bug is obvious here, other places in this function used
"cpufeat_mask" correctly.
Fixed: b648feff8ea2 ("xen/x86: Improvements to in-hypervisor cpuid sanity
checks")
Signed-off-by: Fam Zheng <famzheng@xxxxxxxxxx>
Reviewed-by: Roger Pau Monné <roger.pau@xxxxxxxxxx>
Reviewed-by: Andrew Cooper <andrew.cooper3@xxxxxxxxxx>
master commit: 64219fa179c3e48adad12bfce3f6b3f1596cccbf
master date: 2020-07-29 19:03:41 +0100
---
xen/arch/x86/cpuid.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/xen/arch/x86/cpuid.c b/xen/arch/x86/cpuid.c
index 91faf02a2b..56072d4316 100644
--- a/xen/arch/x86/cpuid.c
+++ b/xen/arch/x86/cpuid.c
@@ -968,7 +968,7 @@ void guest_cpuid(const struct vcpu *v, uint32_t leaf,
{
/* Fast-forward MSR_APIC_BASE.EN. */
if ( vlapic_hw_disabled(vcpu_vlapic(v)) )
- res->d &= ~cpufeat_bit(X86_FEATURE_APIC);
+ res->d &= ~cpufeat_mask(X86_FEATURE_APIC);
/*
* PSE36 is not supported in shadow mode. This bit should be
--
generated by git-patchbot for /home/xen/git/xen.git#staging-4.12
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