Refactor get_msr_feature() to take the index and data pointer as distinct
parameters in anticipation of eliminating "struct kvm_msr_entry" usage
further up the primary callchain.
No functional change intended.
Signed-off-by: Sean Christopherson <seanjc@xxxxxxxxxx>
---
arch/x86/include/asm/kvm_host.h | 2 +-
arch/x86/kvm/svm/svm.c | 16 +++++++---------
arch/x86/kvm/vmx/vmx.c | 6 +++---
arch/x86/kvm/vmx/x86_ops.h | 2 +-
arch/x86/kvm/x86.c | 2 +-
5 files changed, 13 insertions(+), 15 deletions(-)
diff --git a/arch/x86/include/asm/kvm_host.h b/arch/x86/include/asm/kvm_host.h
index 1d13e3cd1dc5..7d56e5a52ae3 100644
--- a/arch/x86/include/asm/kvm_host.h
+++ b/arch/x86/include/asm/kvm_host.h
@@ -1785,7 +1785,7 @@ struct kvm_x86_ops {
int (*vm_move_enc_context_from)(struct kvm *kvm, unsigned int source_fd);
void (*guest_memory_reclaimed)(struct kvm *kvm);
- int (*get_msr_feature)(struct kvm_msr_entry *entry);
+ int (*get_msr_feature)(u32 msr, u64 *data);
int (*check_emulate_instruction)(struct kvm_vcpu *vcpu, int emul_type,
void *insn, int insn_len);
diff --git a/arch/x86/kvm/svm/svm.c b/arch/x86/kvm/svm/svm.c
index 6e518edbd2aa..15422b7d9149 100644
--- a/arch/x86/kvm/svm/svm.c
+++ b/arch/x86/kvm/svm/svm.c
@@ -2796,14 +2796,14 @@ static int efer_trap(struct kvm_vcpu *vcpu)
return kvm_complete_insn_gp(vcpu, ret);
}
-static int svm_get_msr_feature(struct kvm_msr_entry *msr)
+static int svm_get_msr_feature(u32 msr, u64 *data)
{
- msr->data = 0;
+ *data = 0;
- switch (msr->index) {
+ switch (msr) {
case MSR_AMD64_DE_CFG:
if (cpu_feature_enabled(X86_FEATURE_LFENCE_RDTSC))
- msr->data |= MSR_AMD64_DE_CFG_LFENCE_SERIALIZE;
+ *data |= MSR_AMD64_DE_CFG_LFENCE_SERIALIZE;
break;
default:
return KVM_MSR_RET_UNSUPPORTED;
@@ -3132,14 +3132,12 @@ static int svm_set_msr(struct kvm_vcpu *vcpu, struct msr_data *msr)
kvm_pr_unimpl_wrmsr(vcpu, ecx, data);
break;
case MSR_AMD64_DE_CFG: {
- struct kvm_msr_entry msr_entry;
+ u64 supported_de_cfg;
- msr_entry.index = msr->index;
- if (svm_get_msr_feature(&msr_entry))
+ if (svm_get_msr_feature(ecx, &supported_de_cfg))
return 1;
- /* Check the supported bits */
- if (data & ~msr_entry.data)
+ if (data & ~supported_de_cfg)
return 1;
/*
diff --git a/arch/x86/kvm/vmx/vmx.c b/arch/x86/kvm/vmx/vmx.c
index 0ad2e7545de3..25b0a838abd6 100644
--- a/arch/x86/kvm/vmx/vmx.c
+++ b/arch/x86/kvm/vmx/vmx.c
@@ -1955,13 +1955,13 @@ static inline bool is_vmx_feature_control_msr_valid(struct vcpu_vmx *vmx,
return !(msr->data & ~valid_bits);
}
-int vmx_get_msr_feature(struct kvm_msr_entry *msr)
+int vmx_get_msr_feature(u32 msr, u64 *data)
{
- switch (msr->index) {
+ switch (msr) {
case KVM_FIRST_EMULATED_VMX_MSR ... KVM_LAST_EMULATED_VMX_MSR:
if (!nested)
return 1;
- return vmx_get_vmx_msr(&vmcs_config.nested, msr->index, &msr->data);
+ return vmx_get_vmx_msr(&vmcs_config.nested, msr, data);
default:
return KVM_MSR_RET_UNSUPPORTED;
}
diff --git a/arch/x86/kvm/vmx/x86_ops.h b/arch/x86/kvm/vmx/x86_ops.h
index 502704596c83..504d56d6837d 100644
--- a/arch/x86/kvm/vmx/x86_ops.h
+++ b/arch/x86/kvm/vmx/x86_ops.h
@@ -58,7 +58,7 @@ bool vmx_has_emulated_msr(struct kvm *kvm, u32 index);
void vmx_msr_filter_changed(struct kvm_vcpu *vcpu);
void vmx_prepare_switch_to_guest(struct kvm_vcpu *vcpu);
void vmx_update_exception_bitmap(struct kvm_vcpu *vcpu);
-int vmx_get_msr_feature(struct kvm_msr_entry *msr);
+int vmx_get_msr_feature(u32 msr, u64 *data);
int vmx_get_msr(struct kvm_vcpu *vcpu, struct msr_data *msr_info);
u64 vmx_get_segment_base(struct kvm_vcpu *vcpu, int seg);
void vmx_get_segment(struct kvm_vcpu *vcpu, struct kvm_segment *var, int seg);
diff --git a/arch/x86/kvm/x86.c b/arch/x86/kvm/x86.c
index 2b07f0f11aeb..03e50812ab33 100644
--- a/arch/x86/kvm/x86.c
+++ b/arch/x86/kvm/x86.c
@@ -1695,7 +1695,7 @@ static int kvm_get_msr_feature(struct kvm_msr_entry *msr)
rdmsrl_safe(msr->index, &msr->data);
break;
default:
- return static_call(kvm_x86_get_msr_feature)(msr);
+ return static_call(kvm_x86_get_msr_feature)(msr->index, &msr->data);
}
return 0;
}
--
2.44.0.769.g3c40516874-goog
