[PATCH v5 08/12] KVM: SVM: Remove set_cr_intercept, clr_cr_intercept and is_cr_intercept

From: Babu Moger
Date: Wed Aug 26 2020 - 15:15:17 EST


Remove set_cr_intercept, clr_cr_intercept and is_cr_intercept. Instead
call generic svm_set_intercept, svm_clr_intercept an dsvm_is_intercep
tfor all cr intercepts.

Signed-off-by: Babu Moger <babu.moger@xxxxxxx>
Reviewed-by: Jim Mattson <jmattson@xxxxxxxxxx>
---
arch/x86/kvm/svm/svm.c | 34 +++++++++++++++++-----------------
arch/x86/kvm/svm/svm.h | 25 -------------------------
2 files changed, 17 insertions(+), 42 deletions(-)

diff --git a/arch/x86/kvm/svm/svm.c b/arch/x86/kvm/svm/svm.c
index 17bfa34033ac..0d7397f4a4f7 100644
--- a/arch/x86/kvm/svm/svm.c
+++ b/arch/x86/kvm/svm/svm.c
@@ -992,14 +992,14 @@ static void init_vmcb(struct vcpu_svm *svm)

svm->vcpu.arch.hflags = 0;

- set_cr_intercept(svm, INTERCEPT_CR0_READ);
- set_cr_intercept(svm, INTERCEPT_CR3_READ);
- set_cr_intercept(svm, INTERCEPT_CR4_READ);
- set_cr_intercept(svm, INTERCEPT_CR0_WRITE);
- set_cr_intercept(svm, INTERCEPT_CR3_WRITE);
- set_cr_intercept(svm, INTERCEPT_CR4_WRITE);
+ svm_set_intercept(svm, INTERCEPT_CR0_READ);
+ svm_set_intercept(svm, INTERCEPT_CR3_READ);
+ svm_set_intercept(svm, INTERCEPT_CR4_READ);
+ svm_set_intercept(svm, INTERCEPT_CR0_WRITE);
+ svm_set_intercept(svm, INTERCEPT_CR3_WRITE);
+ svm_set_intercept(svm, INTERCEPT_CR4_WRITE);
if (!kvm_vcpu_apicv_active(&svm->vcpu))
- set_cr_intercept(svm, INTERCEPT_CR8_WRITE);
+ svm_set_intercept(svm, INTERCEPT_CR8_WRITE);

set_dr_intercepts(svm);

@@ -1094,8 +1094,8 @@ static void init_vmcb(struct vcpu_svm *svm)
control->nested_ctl |= SVM_NESTED_CTL_NP_ENABLE;
svm_clr_intercept(svm, INTERCEPT_INVLPG);
clr_exception_intercept(svm, INTERCEPT_PF_VECTOR);
- clr_cr_intercept(svm, INTERCEPT_CR3_READ);
- clr_cr_intercept(svm, INTERCEPT_CR3_WRITE);
+ svm_clr_intercept(svm, INTERCEPT_CR3_READ);
+ svm_clr_intercept(svm, INTERCEPT_CR3_WRITE);
save->g_pat = svm->vcpu.arch.pat;
save->cr3 = 0;
save->cr4 = 0;
@@ -1549,11 +1549,11 @@ static void update_cr0_intercept(struct vcpu_svm *svm)
vmcb_mark_dirty(svm->vmcb, VMCB_CR);

if (gcr0 == *hcr0) {
- clr_cr_intercept(svm, INTERCEPT_CR0_READ);
- clr_cr_intercept(svm, INTERCEPT_CR0_WRITE);
+ svm_clr_intercept(svm, INTERCEPT_CR0_READ);
+ svm_clr_intercept(svm, INTERCEPT_CR0_WRITE);
} else {
- set_cr_intercept(svm, INTERCEPT_CR0_READ);
- set_cr_intercept(svm, INTERCEPT_CR0_WRITE);
+ svm_set_intercept(svm, INTERCEPT_CR0_READ);
+ svm_set_intercept(svm, INTERCEPT_CR0_WRITE);
}
}

@@ -2931,7 +2931,7 @@ static int handle_exit(struct kvm_vcpu *vcpu, fastpath_t exit_fastpath)

trace_kvm_exit(exit_code, vcpu, KVM_ISA_SVM);

- if (!is_cr_intercept(svm, INTERCEPT_CR0_WRITE))
+ if (!svm_is_intercept(svm, INTERCEPT_CR0_WRITE))
vcpu->arch.cr0 = svm->vmcb->save.cr0;
if (npt_enabled)
vcpu->arch.cr3 = svm->vmcb->save.cr3;
@@ -3056,13 +3056,13 @@ static void update_cr8_intercept(struct kvm_vcpu *vcpu, int tpr, int irr)
if (nested_svm_virtualize_tpr(vcpu))
return;

- clr_cr_intercept(svm, INTERCEPT_CR8_WRITE);
+ svm_clr_intercept(svm, INTERCEPT_CR8_WRITE);

if (irr == -1)
return;

if (tpr >= irr)
- set_cr_intercept(svm, INTERCEPT_CR8_WRITE);
+ svm_set_intercept(svm, INTERCEPT_CR8_WRITE);
}

bool svm_nmi_blocked(struct kvm_vcpu *vcpu)
@@ -3250,7 +3250,7 @@ static inline void sync_cr8_to_lapic(struct kvm_vcpu *vcpu)
if (nested_svm_virtualize_tpr(vcpu))
return;

- if (!is_cr_intercept(svm, INTERCEPT_CR8_WRITE)) {
+ if (!svm_is_intercept(svm, INTERCEPT_CR8_WRITE)) {
int cr8 = svm->vmcb->control.int_ctl & V_TPR_MASK;
kvm_set_cr8(vcpu, cr8);
}
diff --git a/arch/x86/kvm/svm/svm.h b/arch/x86/kvm/svm/svm.h
index ffb35a83048f..8128bac75fa2 100644
--- a/arch/x86/kvm/svm/svm.h
+++ b/arch/x86/kvm/svm/svm.h
@@ -228,31 +228,6 @@ static inline bool vmcb_is_intercept(struct vmcb_control_area *control, int bit)
return test_bit(bit, (unsigned long *)&control->intercepts);
}

-static inline void set_cr_intercept(struct vcpu_svm *svm, int bit)
-{
- struct vmcb *vmcb = get_host_vmcb(svm);
-
- vmcb_set_intercept(&vmcb->control, bit);
-
- recalc_intercepts(svm);
-}
-
-static inline void clr_cr_intercept(struct vcpu_svm *svm, int bit)
-{
- struct vmcb *vmcb = get_host_vmcb(svm);
-
- vmcb_clr_intercept(&vmcb->control, bit);
-
- recalc_intercepts(svm);
-}
-
-static inline bool is_cr_intercept(struct vcpu_svm *svm, int bit)
-{
- struct vmcb *vmcb = get_host_vmcb(svm);
-
- return vmcb_is_intercept(&vmcb->control, bit);
-}
-
static inline void set_dr_intercepts(struct vcpu_svm *svm)
{
struct vmcb *vmcb = get_host_vmcb(svm);