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| author | Takuya Yoshikawa | 2013-12-13 07:08:38 +0100 |
|---|---|---|
| committer | Paolo Bonzini | 2013-12-13 14:23:54 +0100 |
| commit | 9357d93952143b178fa9d1f5095b8f273b01a1f1 (patch) | |
| tree | f6f9138477fc3d90abcbd09ed83c11f6bf3d8c7e /arch/x86/kvm/x86.c | |
| parent | KVM: Use cond_resched() directly and remove useless kvm_resched() (diff) | |
| download | kernel-qcow2-linux-9357d93952143b178fa9d1f5095b8f273b01a1f1.tar.gz kernel-qcow2-linux-9357d93952143b178fa9d1f5095b8f273b01a1f1.tar.xz kernel-qcow2-linux-9357d93952143b178fa9d1f5095b8f273b01a1f1.zip | |
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>
Diffstat (limited to 'arch/x86/kvm/x86.c')
| -rw-r--r-- | arch/x86/kvm/x86.c | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/arch/x86/kvm/x86.c b/arch/x86/kvm/x86.c index 4fb1ee619c1c..1dc0359e2095 100644 --- a/arch/x86/kvm/x86.c +++ b/arch/x86/kvm/x86.c @@ -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; |