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KVM: VMX: use cmpxchg64

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commit c0a1666bcb2a33e84187a15eabdcd54056be9a97 upstream.

This fixes a compilation failure on 32-bit systems.

Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Paolo Bonzini 2017-09-28 17:58:41 +02:00 committed by Greg Kroah-Hartman
parent cb2da657d3
commit ea37f61f5d
1 changed files with 6 additions and 6 deletions
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12
arch/x86/kvm/vmx.c
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@ -2203,8 +2203,8 @@ 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)
@ -11039,8 +11039,8 @@ 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));
@ -11109,8 +11109,8 @@ 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)