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KVM: x86: Add comment on vcpu_enter_guest()'s return value 

Giving proper names to the 0 and 1 was once suggested.  But since 0 is
returned to the userspace, giving it another name can introduce extra
confusion.  This patch just explains the meanings instead.

Signed-off-by: Takuya Yoshikawa <yoshikawa_takuya_b1@lab.ntt.co.jp>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
hifive-unleashed-5.1
Takuya Yoshikawa 2013-12-13 15:08:38 +09:00 committed by Paolo Bonzini
parent c08ac06ab3
commit 9357d93952
1 changed files with 5 additions and 0 deletions
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5
arch/x86/kvm/x86.c
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@ -5865,6 +5865,11 @@ static void vcpu_scan_ioapic(struct kvm_vcpu *vcpu)
kvm_apic_update_tmr(vcpu, tmr);
}
/*
* Returns 1 to let __vcpu_run() continue the guest execution loop without
* exiting to the userspace. Otherwise, the value will be returned to the
* userspace.
*/
static int vcpu_enter_guest(struct kvm_vcpu *vcpu)
{
int r;