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KVM: x86: Rename handle_fastpath_set_msr_irqoff() to handle_fastpath_wrmsr()

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Rename the WRMSR fastpath API to drop "irqoff", as that information is
redundant (the fastpath always runs with IRQs disabled), and to prepare
for adding a fastpath for the immediate variant of WRMSRNS.

No functional change intended.

Signed-off-by: Xin Li (Intel) <xin@zytor.com>
[sean: split to separate patch, write changelog]
Link: https://lore.kernel.org/r/20250805202224.1475590-4-seanjc@google.com
Signed-off-by: Sean Christopherson <seanjc@google.com>
This commit is contained in:
Xin Li
2025-08-05 13:22:21 -07:00
committed by Sean Christopherson
parent ec400f6c2f
commit 87a877de36
4 changed files with 5 additions and 5 deletions
Download Patch File Download Diff File Expand all files Collapse all files
arch/x86/kvm/svm/svm.c
+1 -1
View File
@@ -4197,7 +4197,7 @@ static fastpath_t svm_exit_handlers_fastpath(struct kvm_vcpu *vcpu)
case SVM_EXIT_MSR:
if (!control->exit_info_1)
break;
return handle_fastpath_set_msr_irqoff(vcpu);
return handle_fastpath_wrmsr(vcpu);
case SVM_EXIT_HLT:
return handle_fastpath_hlt(vcpu);
case SVM_EXIT_INVD:
arch/x86/kvm/vmx/vmx.c
+1 -1
View File
@@ -7170,7 +7170,7 @@ static fastpath_t vmx_exit_handlers_fastpath(struct kvm_vcpu *vcpu,
switch (vmx_get_exit_reason(vcpu).basic) {
case EXIT_REASON_MSR_WRITE:
return handle_fastpath_set_msr_irqoff(vcpu);
return handle_fastpath_wrmsr(vcpu);
case EXIT_REASON_PREEMPTION_TIMER:
return handle_fastpath_preemption_timer(vcpu, force_immediate_exit);
case EXIT_REASON_HLT:
arch/x86/kvm/x86.c
+2 -2
View File
@@ -2143,7 +2143,7 @@ static inline bool kvm_vcpu_exit_request(struct kvm_vcpu *vcpu)
kvm_request_pending(vcpu) || xfer_to_guest_mode_work_pending();
}
fastpath_t handle_fastpath_set_msr_irqoff(struct kvm_vcpu *vcpu)
fastpath_t handle_fastpath_wrmsr(struct kvm_vcpu *vcpu)
{
u64 data = kvm_read_edx_eax(vcpu);
u32 msr = kvm_rcx_read(vcpu);
@@ -2168,7 +2168,7 @@ fastpath_t handle_fastpath_set_msr_irqoff(struct kvm_vcpu *vcpu)
return EXIT_FASTPATH_REENTER_GUEST;
}
EXPORT_SYMBOL_GPL(handle_fastpath_set_msr_irqoff);
EXPORT_SYMBOL_GPL(handle_fastpath_wrmsr);
/*
* Adapt set_msr() to msr_io()'s calling convention
arch/x86/kvm/x86.h
+1 -1
View File
@@ -437,7 +437,7 @@ int x86_decode_emulated_instruction(struct kvm_vcpu *vcpu, int emulation_type,
void *insn, int insn_len);
int x86_emulate_instruction(struct kvm_vcpu *vcpu, gpa_t cr2_or_gpa,
int emulation_type, void *insn, int insn_len);
fastpath_t handle_fastpath_set_msr_irqoff(struct kvm_vcpu *vcpu);
fastpath_t handle_fastpath_wrmsr(struct kvm_vcpu *vcpu);
fastpath_t handle_fastpath_hlt(struct kvm_vcpu *vcpu);
fastpath_t handle_fastpath_invd(struct kvm_vcpu *vcpu);