diff mbox series

x86/cpuid: Fix APIC bit clearing

Message ID 20200729163341.5662-1-fam@euphon.net (mailing list archive)
State New, archived
Headers show
Series x86/cpuid: Fix APIC bit clearing | expand

Commit Message

Fam July 29, 2020, 4:33 p.m. UTC 
From: Fam Zheng <famzheng@amazon.com>

The bug is obvious here, other places in this function used
"cpufeat_mask" correctly.

Signed-off-by: Fam Zheng <famzheng@amazon.com>
Fixes: 46df8a65 ("x86/cpuid: Effectively remove pv_cpuid() and hvm_cpuid()")
---
 xen/arch/x86/cpuid.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)
diff mbox series

Patch

diff --git a/xen/arch/x86/cpuid.c b/xen/arch/x86/cpuid.c
index 6a4a787b68..63a03ef1e5 100644
--- a/xen/arch/x86/cpuid.c
+++ b/xen/arch/x86/cpuid.c
@@ -1057,7 +1057,7 @@  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