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author | Paolo Bonzini <pbonzini@redhat.com> | 2019-04-30 22:07:26 +0200 |
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committer | Paolo Bonzini <pbonzini@redhat.com> | 2019-04-30 22:07:26 +0200 |
commit | e9c16c78503dd0482b876761d60a3d2f50ac4d86 (patch) | |
tree | 8e2adfa13c9ce4e8e7ac7e4848aa64dd50798ebe | |
parent | 2b3eaf815ca930b1dbc11fb1ebd773e510947c0f (diff) | |
download | linux-e9c16c78503dd0482b876761d60a3d2f50ac4d86.tar.gz linux-e9c16c78503dd0482b876761d60a3d2f50ac4d86.tar.bz2 linux-e9c16c78503dd0482b876761d60a3d2f50ac4d86.zip |
KVM: x86: use direct accessors for RIP and RSP
Use specific inline functions for RIP and RSP instead of
going through kvm_register_read and kvm_register_write,
which are quite a mouthful. kvm_rsp_read and kvm_rsp_write
did not exist, so add them.
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
-rw-r--r-- | arch/x86/kvm/kvm_cache_regs.h | 10 | ||||
-rw-r--r-- | arch/x86/kvm/svm.c | 8 | ||||
-rw-r--r-- | arch/x86/kvm/vmx/nested.c | 12 | ||||
-rw-r--r-- | arch/x86/kvm/x86.c | 4 |
4 files changed, 22 insertions, 12 deletions
diff --git a/arch/x86/kvm/kvm_cache_regs.h b/arch/x86/kvm/kvm_cache_regs.h index d179b7d7860d..1cc6c47dc77e 100644 --- a/arch/x86/kvm/kvm_cache_regs.h +++ b/arch/x86/kvm/kvm_cache_regs.h @@ -65,6 +65,16 @@ static inline void kvm_rip_write(struct kvm_vcpu *vcpu, unsigned long val) kvm_register_write(vcpu, VCPU_REGS_RIP, val); } +static inline unsigned long kvm_rsp_read(struct kvm_vcpu *vcpu) +{ + return kvm_register_read(vcpu, VCPU_REGS_RSP); +} + +static inline void kvm_rsp_write(struct kvm_vcpu *vcpu, unsigned long val) +{ + kvm_register_write(vcpu, VCPU_REGS_RSP, val); +} + static inline u64 kvm_pdptr_read(struct kvm_vcpu *vcpu, int index) { might_sleep(); /* on svm */ diff --git a/arch/x86/kvm/svm.c b/arch/x86/kvm/svm.c index 38aef3439799..893686cb0044 100644 --- a/arch/x86/kvm/svm.c +++ b/arch/x86/kvm/svm.c @@ -3389,8 +3389,8 @@ static int nested_svm_vmexit(struct vcpu_svm *svm) (void)kvm_set_cr3(&svm->vcpu, hsave->save.cr3); } kvm_rax_write(&svm->vcpu, hsave->save.rax); - kvm_register_write(&svm->vcpu, VCPU_REGS_RSP, hsave->save.rsp); - kvm_register_write(&svm->vcpu, VCPU_REGS_RIP, hsave->save.rip); + kvm_rsp_write(&svm->vcpu, hsave->save.rsp); + kvm_rip_write(&svm->vcpu, hsave->save.rip); svm->vmcb->save.dr7 = 0; svm->vmcb->save.cpl = 0; svm->vmcb->control.exit_int_info = 0; @@ -3497,8 +3497,8 @@ static void enter_svm_guest_mode(struct vcpu_svm *svm, u64 vmcb_gpa, svm->vmcb->save.cr2 = svm->vcpu.arch.cr2 = nested_vmcb->save.cr2; kvm_rax_write(&svm->vcpu, nested_vmcb->save.rax); - kvm_register_write(&svm->vcpu, VCPU_REGS_RSP, nested_vmcb->save.rsp); - kvm_register_write(&svm->vcpu, VCPU_REGS_RIP, nested_vmcb->save.rip); + kvm_rsp_write(&svm->vcpu, nested_vmcb->save.rsp); + kvm_rip_write(&svm->vcpu, nested_vmcb->save.rip); /* In case we don't even reach vcpu_run, the fields are not updated */ svm->vmcb->save.rax = nested_vmcb->save.rax; diff --git a/arch/x86/kvm/vmx/nested.c b/arch/x86/kvm/vmx/nested.c index d97dbea150ba..04b40a98f60b 100644 --- a/arch/x86/kvm/vmx/nested.c +++ b/arch/x86/kvm/vmx/nested.c @@ -2372,8 +2372,8 @@ static int prepare_vmcs02(struct kvm_vcpu *vcpu, struct vmcs12 *vmcs12, if (!enable_ept) vcpu->arch.walk_mmu->inject_page_fault = vmx_inject_page_fault_nested; - kvm_register_write(vcpu, VCPU_REGS_RSP, vmcs12->guest_rsp); - kvm_register_write(vcpu, VCPU_REGS_RIP, vmcs12->guest_rip); + kvm_rsp_write(vcpu, vmcs12->guest_rsp); + kvm_rip_write(vcpu, vmcs12->guest_rip); return 0; } @@ -3401,8 +3401,8 @@ static void sync_vmcs12(struct kvm_vcpu *vcpu, struct vmcs12 *vmcs12) vmcs12->guest_cr0 = vmcs12_guest_cr0(vcpu, vmcs12); vmcs12->guest_cr4 = vmcs12_guest_cr4(vcpu, vmcs12); - vmcs12->guest_rsp = kvm_register_read(vcpu, VCPU_REGS_RSP); - vmcs12->guest_rip = kvm_register_read(vcpu, VCPU_REGS_RIP); + vmcs12->guest_rsp = kvm_rsp_read(vcpu); + vmcs12->guest_rip = kvm_rip_read(vcpu); vmcs12->guest_rflags = vmcs_readl(GUEST_RFLAGS); vmcs12->guest_es_selector = vmcs_read16(GUEST_ES_SELECTOR); @@ -3585,8 +3585,8 @@ static void load_vmcs12_host_state(struct kvm_vcpu *vcpu, vcpu->arch.efer &= ~(EFER_LMA | EFER_LME); vmx_set_efer(vcpu, vcpu->arch.efer); - kvm_register_write(vcpu, VCPU_REGS_RSP, vmcs12->host_rsp); - kvm_register_write(vcpu, VCPU_REGS_RIP, vmcs12->host_rip); + kvm_rsp_write(vcpu, vmcs12->host_rsp); + kvm_rip_write(vcpu, vmcs12->host_rip); vmx_set_rflags(vcpu, X86_EFLAGS_FIXED); vmx_set_interrupt_shadow(vcpu, 0); diff --git a/arch/x86/kvm/x86.c b/arch/x86/kvm/x86.c index b352a7c137cd..dc621f73e96b 100644 --- a/arch/x86/kvm/x86.c +++ b/arch/x86/kvm/x86.c @@ -8290,7 +8290,7 @@ static void __get_regs(struct kvm_vcpu *vcpu, struct kvm_regs *regs) regs->rdx = kvm_rdx_read(vcpu); regs->rsi = kvm_rsi_read(vcpu); regs->rdi = kvm_rdi_read(vcpu); - regs->rsp = kvm_register_read(vcpu, VCPU_REGS_RSP); + regs->rsp = kvm_rsp_read(vcpu); regs->rbp = kvm_rbp_read(vcpu); #ifdef CONFIG_X86_64 regs->r8 = kvm_r8_read(vcpu); @@ -8326,7 +8326,7 @@ static void __set_regs(struct kvm_vcpu *vcpu, struct kvm_regs *regs) kvm_rdx_write(vcpu, regs->rdx); kvm_rsi_write(vcpu, regs->rsi); kvm_rdi_write(vcpu, regs->rdi); - kvm_register_write(vcpu, VCPU_REGS_RSP, regs->rsp); + kvm_rsp_write(vcpu, regs->rsp); kvm_rbp_write(vcpu, regs->rbp); #ifdef CONFIG_X86_64 kvm_r8_write(vcpu, regs->r8); |