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kvm: vmx: fix formatting of a comment 

Eliminate a gratuitous conflict with 5.0.

Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
hifive-unleashed-5.1
Paolo Bonzini 2019-03-15 19:23:45 +01:00
parent eca6be566d
commit 4a605bc08e
1 changed files with 5 additions and 5 deletions
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10
arch/x86/kvm/vmx/vmx.c
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@ -1213,13 +1213,13 @@ static void vmx_vcpu_pi_load(struct kvm_vcpu *vcpu, int cpu)
new.control) != old.control);
/*
* Clear SN before reading the bitmap; this ensures that any
* interrupt that comes after the bitmap is read sets ON. The
* VT-d firmware * writes the bitmap and reads SN atomically (5.2.3
* in the spec), so it doesn't really have a memory barrier that
* pairs with this. However, we cannot do that and we need one.
* Clear SN before reading the bitmap. The VT-d firmware
* writes the bitmap and reads SN atomically (5.2.3 in the
* spec), so it doesn't really have a memory barrier that
* pairs with this, but we cannot do that and we need one.
*/
smp_mb__after_atomic();
if (!bitmap_empty((unsigned long *)pi_desc->pir, NR_VECTORS))
pi_set_on(pi_desc);
}