KVM: Define and use cr8 access functions
This patch is to wrap APIC base register and CR8 operation which can
provide a unique API for user level irqchip and kernel irqchip.
This is a preparation of merging lapic/ioapic patch.
Signed-off-by: Yaozu (Eddie) Dong <eddie.dong@intel.com>
Signed-off-by: Avi Kivity <avi@qumranet.com>
diff --git a/drivers/kvm/vmx.c b/drivers/kvm/vmx.c
index f1e80a9..19676b5 100644
--- a/drivers/kvm/vmx.c
+++ b/drivers/kvm/vmx.c
@@ -1369,6 +1369,7 @@
int i;
int ret = 0;
unsigned long kvm_vmx_return;
+ u64 msr;
if (!init_rmode_tss(vmx->vcpu.kvm)) {
ret = -ENOMEM;
@@ -1376,10 +1377,11 @@
}
vmx->vcpu.regs[VCPU_REGS_RDX] = get_rdx_init_val();
- vmx->vcpu.cr8 = 0;
- vmx->vcpu.apic_base = 0xfee00000 | MSR_IA32_APICBASE_ENABLE;
+ set_cr8(&vmx->vcpu, 0);
+ msr = 0xfee00000 | MSR_IA32_APICBASE_ENABLE;
if (vmx->vcpu.vcpu_id == 0)
- vmx->vcpu.apic_base |= MSR_IA32_APICBASE_BSP;
+ msr |= MSR_IA32_APICBASE_BSP;
+ kvm_set_apic_base(&vmx->vcpu, msr);
fx_init(&vmx->vcpu);
@@ -1860,7 +1862,7 @@
return 1;
case 8:
vcpu_load_rsp_rip(vcpu);
- vcpu->regs[reg] = vcpu->cr8;
+ vcpu->regs[reg] = get_cr8(vcpu);
vcpu_put_rsp_rip(vcpu);
skip_emulated_instruction(vcpu);
return 1;
@@ -1957,8 +1959,8 @@
struct kvm_run *kvm_run)
{
kvm_run->if_flag = (vmcs_readl(GUEST_RFLAGS) & X86_EFLAGS_IF) != 0;
- kvm_run->cr8 = vcpu->cr8;
- kvm_run->apic_base = vcpu->apic_base;
+ kvm_run->cr8 = get_cr8(vcpu);
+ kvm_run->apic_base = kvm_get_apic_base(vcpu);
kvm_run->ready_for_interrupt_injection = (vcpu->interrupt_window_open &&
vcpu->irq_summary == 0);
}