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openSUSE:Evergreen:11.1
xen
19606-hvm-x2apic-cpuid.patch
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File 19606-hvm-x2apic-cpuid.patch of Package xen
# HG changeset patch # User Keir Fraser <keir.fraser@citrix.com> # Date 1242692759 -3600 # Node ID f71c5e3ac2523a96d1b91901e8d5ee16a04dbc7d # Parent c1340cda65fb5859acc48e3a9aba55b52adc5347 x86 hvm: Provide x2APIC identifier in CPUID leaf 0xb. Signed-off-by: Nitin A Kamble <nitin.a.kamble@intel.com> --- a/xen/arch/x86/hvm/hvm.c +++ b/xen/arch/x86/hvm/hvm.c @@ -1662,13 +1662,19 @@ void hvm_cpuid(unsigned int input, unsig domain_cpuid(v->domain, input, *ecx, eax, ebx, ecx, edx); - if ( input == 0x00000001 ) + switch ( input ) { + case 0x1: /* Fix up VLAPIC details. */ *ebx &= 0x00FFFFFFu; *ebx |= (v->vcpu_id * 2) << 24; if ( vlapic_hw_disabled(vcpu_vlapic(v)) ) __clear_bit(X86_FEATURE_APIC & 31, edx); + break; + case 0xb: + /* Fix the x2APIC identifier. */ + *edx = v->vcpu_id * 2; + break; } }
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