aboutsummaryrefslogtreecommitdiff
path: root/arch/x86
diff options
context:
space:
mode:
authorJan Kiszka <jan.kiszka@siemens.com>2013-12-29 02:29:30 +0100
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2014-01-09 12:24:22 -0800
commit9e23c5bb1507d413f86652feea3fb1c41cb6f99b (patch)
tree7d243e16136db8c880826b62d68123d7219c12b9 /arch/x86
parentd5985f143875f7d4dc718fa664b70666667877d9 (diff)
downloadlinaro-lsk-9e23c5bb1507d413f86652feea3fb1c41cb6f99b.tar.gz
KVM: x86: Fix APIC map calculation after re-enabling
commit e66d2ae7c67bd9ac982a3d1890564de7f7eabf4b upstream. Update arch.apic_base before triggering recalculate_apic_map. Otherwise the recalculation will work against the previous state of the APIC and will fail to build the correct map when an APIC is hardware-enabled again. This fixes a regression of 1e08ec4a13. Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com> Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'arch/x86')
-rw-r--r--arch/x86/kvm/lapic.c8
1 files changed, 4 insertions, 4 deletions
diff --git a/arch/x86/kvm/lapic.c b/arch/x86/kvm/lapic.c
index 0987c638db1..d0a97e80882 100644
--- a/arch/x86/kvm/lapic.c
+++ b/arch/x86/kvm/lapic.c
@@ -1364,6 +1364,10 @@ void kvm_lapic_set_base(struct kvm_vcpu *vcpu, u64 value)
return;
}
+ if (!kvm_vcpu_is_bsp(apic->vcpu))
+ value &= ~MSR_IA32_APICBASE_BSP;
+ vcpu->arch.apic_base = value;
+
/* update jump label if enable bit changes */
if ((vcpu->arch.apic_base ^ value) & MSR_IA32_APICBASE_ENABLE) {
if (value & MSR_IA32_APICBASE_ENABLE)
@@ -1373,10 +1377,6 @@ void kvm_lapic_set_base(struct kvm_vcpu *vcpu, u64 value)
recalculate_apic_map(vcpu->kvm);
}
- if (!kvm_vcpu_is_bsp(apic->vcpu))
- value &= ~MSR_IA32_APICBASE_BSP;
-
- vcpu->arch.apic_base = value;
if ((old_value ^ value) & X2APIC_ENABLE) {
if (value & X2APIC_ENABLE) {
u32 id = kvm_apic_id(apic);