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KVM: SVM: consolidate nested_svm_exit_handled

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When caching guest intercepts there is no need anymore for the
nested_svm_exit_handled_real function. So move its code into
nested_svm_exit_handled.

Signed-off-by: Joerg Roedel <joerg.roedel@amd.com>
Acked-by: Alexander Graf <agraf@suse.de>
Signed-off-by: Avi Kivity <avi@redhat.com>
This commit is contained in:
Joerg Roedel 2009-08-07 11:49:35 +02:00 committed by Avi Kivity
parent aad42c641c
commit 4c2161aed5
1 changed files with 49 additions and 60 deletions
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109
arch/x86/kvm/svm.c
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@ -1456,15 +1456,58 @@ static int nested_svm_do(struct vcpu_svm *svm,
return retval;
}
static int nested_svm_exit_handled_real(struct vcpu_svm *svm,
void *arg1,
void *arg2,
void *opaque)
static int nested_svm_exit_handled_msr(struct vcpu_svm *svm,
void *arg1, void *arg2,
void *opaque)
{
struct vmcb *nested_vmcb = (struct vmcb *)arg1;
u8 *msrpm = (u8 *)arg2;
u32 t0, t1;
u32 msr = svm->vcpu.arch.regs[VCPU_REGS_RCX];
u32 param = svm->vmcb->control.exit_info_1 & 1;
if (!(nested_vmcb->control.intercept & (1ULL << INTERCEPT_MSR_PROT)))
return 0;
switch (msr) {
case 0 ... 0x1fff:
t0 = (msr * 2) % 8;
t1 = msr / 8;
break;
case 0xc0000000 ... 0xc0001fff:
t0 = (8192 + msr - 0xc0000000) * 2;
t1 = (t0 / 8);
t0 %= 8;
break;
case 0xc0010000 ... 0xc0011fff:
t0 = (16384 + msr - 0xc0010000) * 2;
t1 = (t0 / 8);
t0 %= 8;
break;
default:
return 1;
break;
}
if (msrpm[t1] & ((1 << param) << t0))
return 1;
return 0;
}
static int nested_svm_exit_handled(struct vcpu_svm *svm, bool kvm_override)
{
bool kvm_overrides = *(bool *)opaque;
u32 exit_code = svm->vmcb->control.exit_code;
if (kvm_overrides) {
switch (svm->vmcb->control.exit_code) {
case SVM_EXIT_MSR:
return nested_svm_do(svm, svm->nested.vmcb,
svm->nested.vmcb_msrpm, NULL,
nested_svm_exit_handled_msr);
default:
break;
}
if (kvm_override) {
switch (exit_code) {
case SVM_EXIT_INTR:
case SVM_EXIT_NMI:
@ -1526,60 +1569,6 @@ static int nested_svm_exit_handled_real(struct vcpu_svm *svm,
return 0;
}
static int nested_svm_exit_handled_msr(struct vcpu_svm *svm,
void *arg1, void *arg2,
void *opaque)
{
struct vmcb *nested_vmcb = (struct vmcb *)arg1;
u8 *msrpm = (u8 *)arg2;
u32 t0, t1;
u32 msr = svm->vcpu.arch.regs[VCPU_REGS_RCX];
u32 param = svm->vmcb->control.exit_info_1 & 1;
if (!(nested_vmcb->control.intercept & (1ULL << INTERCEPT_MSR_PROT)))
return 0;
switch(msr) {
case 0 ... 0x1fff:
t0 = (msr * 2) % 8;
t1 = msr / 8;
break;
case 0xc0000000 ... 0xc0001fff:
t0 = (8192 + msr - 0xc0000000) * 2;
t1 = (t0 / 8);
t0 %= 8;
break;
case 0xc0010000 ... 0xc0011fff:
t0 = (16384 + msr - 0xc0010000) * 2;
t1 = (t0 / 8);
t0 %= 8;
break;
default:
return 1;
break;
}
if (msrpm[t1] & ((1 << param) << t0))
return 1;
return 0;
}
static int nested_svm_exit_handled(struct vcpu_svm *svm, bool kvm_override)
{
bool k = kvm_override;
switch (svm->vmcb->control.exit_code) {
case SVM_EXIT_MSR:
return nested_svm_do(svm, svm->nested.vmcb,
svm->nested.vmcb_msrpm, NULL,
nested_svm_exit_handled_msr);
default: break;
}
return nested_svm_do(svm, svm->nested.vmcb, 0, &k,
nested_svm_exit_handled_real);
}
static inline void copy_vmcb_control_area(struct vmcb *dst_vmcb, struct vmcb *from_vmcb)
{
struct vmcb_control_area *dst = &dst_vmcb->control;