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authorPaolo Bonzini <pbonzini@redhat.com>2017-09-28 17:58:41 +0200
committerPaolo Bonzini <pbonzini@redhat.com>2017-09-28 17:58:41 +0200
commitc0a1666bcb2a33e84187a15eabdcd54056be9a97 (patch)
tree0eb6c82ae6aced99811e1bc7a4726701febabfdf
parent31afb2ea2b10a7d17ce3db4cdb0a12b63b2fe08a (diff)
KVM: VMX: use cmpxchg64
This fixes a compilation failure on 32-bit systems. Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
-rw-r--r--arch/x86/kvm/vmx.c12
1 files changed, 6 insertions, 6 deletions
diff --git a/arch/x86/kvm/vmx.c b/arch/x86/kvm/vmx.c
index b9d2140eb212..7f62c94196d1 100644
--- a/arch/x86/kvm/vmx.c
+++ b/arch/x86/kvm/vmx.c
@@ -2238,8 +2238,8 @@ static void vmx_vcpu_pi_load(struct kvm_vcpu *vcpu, int cpu)
new.ndst = (dest << 8) & 0xFF00;
new.sn = 0;
- } while (cmpxchg(&pi_desc->control, old.control,
- new.control) != old.control);
+ } while (cmpxchg64(&pi_desc->control, old.control,
+ new.control) != old.control);
}
static void decache_tsc_multiplier(struct vcpu_vmx *vmx)
@@ -11730,8 +11730,8 @@ static void __pi_post_block(struct kvm_vcpu *vcpu)
/* set 'NV' to 'notification vector' */
new.nv = POSTED_INTR_VECTOR;
- } while (cmpxchg(&pi_desc->control, old.control,
- new.control) != old.control);
+ } while (cmpxchg64(&pi_desc->control, old.control,
+ new.control) != old.control);
if (!WARN_ON_ONCE(vcpu->pre_pcpu == -1)) {
spin_lock(&per_cpu(blocked_vcpu_on_cpu_lock, vcpu->pre_pcpu));
@@ -11800,8 +11800,8 @@ static int pi_pre_block(struct kvm_vcpu *vcpu)
/* set 'NV' to 'wakeup vector' */
new.nv = POSTED_INTR_WAKEUP_VECTOR;
- } while (cmpxchg(&pi_desc->control, old.control,
- new.control) != old.control);
+ } while (cmpxchg64(&pi_desc->control, old.control,
+ new.control) != old.control);
/* We should not block the vCPU if an interrupt is posted for it. */
if (pi_test_on(pi_desc) == 1)