Make room for sse mmio completions.
Signed-off-by: Avi Kivity <avi@xxxxxxxxxx>
---
arch/x86/kvm/x86.c | 39 +++++++++++++++++++++++++--------------
1 files changed, 25 insertions(+), 14 deletions(-)
diff --git a/arch/x86/kvm/x86.c b/arch/x86/kvm/x86.c
index e6bcc97..2eb1124 100644
--- a/arch/x86/kvm/x86.c
+++ b/arch/x86/kvm/x86.c
@@ -5415,6 +5415,27 @@ static int __vcpu_run(struct kvm_vcpu *vcpu)
return r;
}
+static int complete_mmio(struct kvm_vcpu *vcpu)
+{
+ struct kvm_run *run = vcpu->run;
+ int r;
+
+ if (!(vcpu->arch.pio.count || vcpu->mmio_needed))
+ return 1;
+
+ if (vcpu->mmio_needed) {
+ memcpy(vcpu->mmio_data, run->mmio.data, 8);
+ vcpu->mmio_read_completed = 1;
+ vcpu->mmio_needed = 0;
+ }
+ vcpu->srcu_idx = srcu_read_lock(&vcpu->kvm->srcu);
+ r = emulate_instruction(vcpu, EMULTYPE_NO_DECODE);
+ srcu_read_unlock(&vcpu->kvm->srcu, vcpu->srcu_idx);
+ if (r != EMULATE_DONE)
+ return 0;
+ return 1;
+}
+
int kvm_arch_vcpu_ioctl_run(struct kvm_vcpu *vcpu, struct kvm_run *kvm_run)
{
int r;
@@ -5441,20 +5462,10 @@ int kvm_arch_vcpu_ioctl_run(struct kvm_vcpu *vcpu, struct kvm_run *kvm_run)
}
}
- if (vcpu->arch.pio.count || vcpu->mmio_needed) {
- if (vcpu->mmio_needed) {
- memcpy(vcpu->mmio_data, kvm_run->mmio.data, 8);
- vcpu->mmio_read_completed = 1;
- vcpu->mmio_needed = 0;
- }
- vcpu->srcu_idx = srcu_read_lock(&vcpu->kvm->srcu);
- r = emulate_instruction(vcpu, EMULTYPE_NO_DECODE);
- srcu_read_unlock(&vcpu->kvm->srcu, vcpu->srcu_idx);
- if (r != EMULATE_DONE) {
- r = 0;
- goto out;
- }
- }
+ r = complete_mmio(vcpu);
+ if (r <= 0)
+ goto out;
+
if (kvm_run->exit_reason == KVM_EXIT_HYPERCALL)
kvm_register_write(vcpu, VCPU_REGS_RAX,
kvm_run->hypercall.ret);
--
1.7.1
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