From c0a1666bcb2a33e84187a15eabdcd54056be9a97 Mon Sep 17 00:00:00 2001 From: Paolo Bonzini Date: Thu, 28 Sep 2017 17:58:41 +0200 Subject: KVM: VMX: use cmpxchg64 This fixes a compilation failure on 32-bit systems. Signed-off-by: Paolo Bonzini --- arch/x86/kvm/vmx.c | 12 ++++++------ 1 file changed, 6 insertions(+), 6 deletions(-) (limited to 'arch/x86') 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) -- cgit v1.2.3