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Message-ID: <20240830043600.127750-7-seanjc@google.com>
Date: Thu, 29 Aug 2024 21:35:56 -0700
From: Sean Christopherson <seanjc@...gle.com>
To: Paolo Bonzini <pbonzini@...hat.com>, Marc Zyngier <maz@...nel.org>,
Oliver Upton <oliver.upton@...ux.dev>, Tianrui Zhao <zhaotianrui@...ngson.cn>,
Bibo Mao <maobibo@...ngson.cn>, Huacai Chen <chenhuacai@...nel.org>,
Anup Patel <anup@...infault.org>, Paul Walmsley <paul.walmsley@...ive.com>,
Palmer Dabbelt <palmer@...belt.com>, Albert Ou <aou@...s.berkeley.edu>,
Sean Christopherson <seanjc@...gle.com>
Cc: kvm@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
kvmarm@...ts.linux.dev, loongarch@...ts.linux.dev, linux-mips@...r.kernel.org,
kvm-riscv@...ts.infradead.org, linux-riscv@...ts.infradead.org,
linux-kernel@...r.kernel.org, Chao Gao <chao.gao@...el.com>,
Kai Huang <kai.huang@...el.com>, Farrah Chen <farrah.chen@...el.com>
Subject: [PATCH v4 06/10] KVM: x86: Rename virtualization {en,dis}abling APIs
to match common KVM
Rename x86's the per-CPU vendor hooks used to enable virtualization in
hardware to align with the recently renamed arch hooks.
No functional change intended.
Signed-off-by: Sean Christopherson <seanjc@...gle.com>
---
arch/x86/include/asm/kvm-x86-ops.h | 4 ++--
arch/x86/include/asm/kvm_host.h | 4 ++--
arch/x86/kvm/svm/svm.c | 18 +++++++++---------
arch/x86/kvm/vmx/main.c | 4 ++--
arch/x86/kvm/vmx/vmx.c | 10 +++++-----
arch/x86/kvm/vmx/x86_ops.h | 4 ++--
arch/x86/kvm/x86.c | 10 +++++-----
7 files changed, 27 insertions(+), 27 deletions(-)
diff --git a/arch/x86/include/asm/kvm-x86-ops.h b/arch/x86/include/asm/kvm-x86-ops.h
index 68ad4f923664..03b7e13f15bb 100644
--- a/arch/x86/include/asm/kvm-x86-ops.h
+++ b/arch/x86/include/asm/kvm-x86-ops.h
@@ -14,8 +14,8 @@ BUILD_BUG_ON(1)
* be __static_call_return0.
*/
KVM_X86_OP(check_processor_compatibility)
-KVM_X86_OP(hardware_enable)
-KVM_X86_OP(hardware_disable)
+KVM_X86_OP(enable_virtualization_cpu)
+KVM_X86_OP(disable_virtualization_cpu)
KVM_X86_OP(hardware_unsetup)
KVM_X86_OP(has_emulated_msr)
KVM_X86_OP(vcpu_after_set_cpuid)
diff --git a/arch/x86/include/asm/kvm_host.h b/arch/x86/include/asm/kvm_host.h
index 94e7b5a4fafe..cb3b5f107c6e 100644
--- a/arch/x86/include/asm/kvm_host.h
+++ b/arch/x86/include/asm/kvm_host.h
@@ -1629,8 +1629,8 @@ struct kvm_x86_ops {
int (*check_processor_compatibility)(void);
- int (*hardware_enable)(void);
- void (*hardware_disable)(void);
+ int (*enable_virtualization_cpu)(void);
+ void (*disable_virtualization_cpu)(void);
void (*hardware_unsetup)(void);
bool (*has_emulated_msr)(struct kvm *kvm, u32 index);
void (*vcpu_after_set_cpuid)(struct kvm_vcpu *vcpu);
diff --git a/arch/x86/kvm/svm/svm.c b/arch/x86/kvm/svm/svm.c
index d6f252555ab3..a9adbe10c12e 100644
--- a/arch/x86/kvm/svm/svm.c
+++ b/arch/x86/kvm/svm/svm.c
@@ -592,14 +592,14 @@ static inline void kvm_cpu_svm_disable(void)
}
}
-static void svm_emergency_disable(void)
+static void svm_emergency_disable_virtualization_cpu(void)
{
kvm_rebooting = true;
kvm_cpu_svm_disable();
}
-static void svm_hardware_disable(void)
+static void svm_disable_virtualization_cpu(void)
{
/* Make sure we clean up behind us */
if (tsc_scaling)
@@ -610,7 +610,7 @@ static void svm_hardware_disable(void)
amd_pmu_disable_virt();
}
-static int svm_hardware_enable(void)
+static int svm_enable_virtualization_cpu(void)
{
struct svm_cpu_data *sd;
@@ -1533,7 +1533,7 @@ static void svm_prepare_switch_to_guest(struct kvm_vcpu *vcpu)
* TSC_AUX is always virtualized for SEV-ES guests when the feature is
* available. The user return MSR support is not required in this case
* because TSC_AUX is restored on #VMEXIT from the host save area
- * (which has been initialized in svm_hardware_enable()).
+ * (which has been initialized in svm_enable_virtualization_cpu()).
*/
if (likely(tsc_aux_uret_slot >= 0) &&
(!boot_cpu_has(X86_FEATURE_V_TSC_AUX) || !sev_es_guest(vcpu->kvm)))
@@ -3132,7 +3132,7 @@ static int svm_set_msr(struct kvm_vcpu *vcpu, struct msr_data *msr)
* feature is available. The user return MSR support is not
* required in this case because TSC_AUX is restored on #VMEXIT
* from the host save area (which has been initialized in
- * svm_hardware_enable()).
+ * svm_enable_virtualization_cpu()).
*/
if (boot_cpu_has(X86_FEATURE_V_TSC_AUX) && sev_es_guest(vcpu->kvm))
break;
@@ -4980,8 +4980,8 @@ static struct kvm_x86_ops svm_x86_ops __initdata = {
.check_processor_compatibility = svm_check_processor_compat,
.hardware_unsetup = svm_hardware_unsetup,
- .hardware_enable = svm_hardware_enable,
- .hardware_disable = svm_hardware_disable,
+ .enable_virtualization_cpu = svm_enable_virtualization_cpu,
+ .disable_virtualization_cpu = svm_disable_virtualization_cpu,
.has_emulated_msr = svm_has_emulated_msr,
.vcpu_create = svm_vcpu_create,
@@ -5411,7 +5411,7 @@ static void __svm_exit(void)
{
kvm_x86_vendor_exit();
- cpu_emergency_unregister_virt_callback(svm_emergency_disable);
+ cpu_emergency_unregister_virt_callback(svm_emergency_disable_virtualization_cpu);
}
static int __init svm_init(void)
@@ -5427,7 +5427,7 @@ static int __init svm_init(void)
if (r)
return r;
- cpu_emergency_register_virt_callback(svm_emergency_disable);
+ cpu_emergency_register_virt_callback(svm_emergency_disable_virtualization_cpu);
/*
* Common KVM initialization _must_ come last, after this, /dev/kvm is
diff --git a/arch/x86/kvm/vmx/main.c b/arch/x86/kvm/vmx/main.c
index 0bf35ebe8a1b..4a5bf92edccf 100644
--- a/arch/x86/kvm/vmx/main.c
+++ b/arch/x86/kvm/vmx/main.c
@@ -23,8 +23,8 @@ struct kvm_x86_ops vt_x86_ops __initdata = {
.hardware_unsetup = vmx_hardware_unsetup,
- .hardware_enable = vmx_hardware_enable,
- .hardware_disable = vmx_hardware_disable,
+ .enable_virtualization_cpu = vmx_enable_virtualization_cpu,
+ .disable_virtualization_cpu = vmx_disable_virtualization_cpu,
.has_emulated_msr = vmx_has_emulated_msr,
.vm_size = sizeof(struct kvm_vmx),
diff --git a/arch/x86/kvm/vmx/vmx.c b/arch/x86/kvm/vmx/vmx.c
index f18c2d8c7476..cf7d937bfd2c 100644
--- a/arch/x86/kvm/vmx/vmx.c
+++ b/arch/x86/kvm/vmx/vmx.c
@@ -755,7 +755,7 @@ static int kvm_cpu_vmxoff(void)
return -EIO;
}
-static void vmx_emergency_disable(void)
+static void vmx_emergency_disable_virtualization_cpu(void)
{
int cpu = raw_smp_processor_id();
struct loaded_vmcs *v;
@@ -2844,7 +2844,7 @@ static int kvm_cpu_vmxon(u64 vmxon_pointer)
return -EFAULT;
}
-int vmx_hardware_enable(void)
+int vmx_enable_virtualization_cpu(void)
{
int cpu = raw_smp_processor_id();
u64 phys_addr = __pa(per_cpu(vmxarea, cpu));
@@ -2881,7 +2881,7 @@ static void vmclear_local_loaded_vmcss(void)
__loaded_vmcs_clear(v);
}
-void vmx_hardware_disable(void)
+void vmx_disable_virtualization_cpu(void)
{
vmclear_local_loaded_vmcss();
@@ -8584,7 +8584,7 @@ static void __vmx_exit(void)
{
allow_smaller_maxphyaddr = false;
- cpu_emergency_unregister_virt_callback(vmx_emergency_disable);
+ cpu_emergency_unregister_virt_callback(vmx_emergency_disable_virtualization_cpu);
vmx_cleanup_l1d_flush();
}
@@ -8632,7 +8632,7 @@ static int __init vmx_init(void)
pi_init_cpu(cpu);
}
- cpu_emergency_register_virt_callback(vmx_emergency_disable);
+ cpu_emergency_register_virt_callback(vmx_emergency_disable_virtualization_cpu);
vmx_check_vmcs12_offsets();
diff --git a/arch/x86/kvm/vmx/x86_ops.h b/arch/x86/kvm/vmx/x86_ops.h
index ce3221cd1d01..205692c43a8e 100644
--- a/arch/x86/kvm/vmx/x86_ops.h
+++ b/arch/x86/kvm/vmx/x86_ops.h
@@ -13,8 +13,8 @@ extern struct kvm_x86_init_ops vt_init_ops __initdata;
void vmx_hardware_unsetup(void);
int vmx_check_processor_compat(void);
-int vmx_hardware_enable(void);
-void vmx_hardware_disable(void);
+int vmx_enable_virtualization_cpu(void);
+void vmx_disable_virtualization_cpu(void);
int vmx_vm_init(struct kvm *kvm);
void vmx_vm_destroy(struct kvm *kvm);
int vmx_vcpu_precreate(struct kvm *kvm);
diff --git a/arch/x86/kvm/x86.c b/arch/x86/kvm/x86.c
index 1182baf0d487..431358167fa8 100644
--- a/arch/x86/kvm/x86.c
+++ b/arch/x86/kvm/x86.c
@@ -9749,7 +9749,7 @@ int kvm_x86_vendor_init(struct kvm_x86_init_ops *ops)
guard(mutex)(&vendor_module_lock);
- if (kvm_x86_ops.hardware_enable) {
+ if (kvm_x86_ops.enable_virtualization_cpu) {
pr_err("already loaded vendor module '%s'\n", kvm_x86_ops.name);
return -EEXIST;
}
@@ -9876,7 +9876,7 @@ int kvm_x86_vendor_init(struct kvm_x86_init_ops *ops)
return 0;
out_unwind_ops:
- kvm_x86_ops.hardware_enable = NULL;
+ kvm_x86_ops.enable_virtualization_cpu = NULL;
kvm_x86_call(hardware_unsetup)();
out_mmu_exit:
kvm_mmu_vendor_module_exit();
@@ -9917,7 +9917,7 @@ void kvm_x86_vendor_exit(void)
WARN_ON(static_branch_unlikely(&kvm_xen_enabled.key));
#endif
mutex_lock(&vendor_module_lock);
- kvm_x86_ops.hardware_enable = NULL;
+ kvm_x86_ops.enable_virtualization_cpu = NULL;
mutex_unlock(&vendor_module_lock);
}
EXPORT_SYMBOL_GPL(kvm_x86_vendor_exit);
@@ -12528,7 +12528,7 @@ int kvm_arch_enable_virtualization_cpu(void)
if (ret)
return ret;
- ret = kvm_x86_call(hardware_enable)();
+ ret = kvm_x86_call(enable_virtualization_cpu)();
if (ret != 0)
return ret;
@@ -12610,7 +12610,7 @@ int kvm_arch_enable_virtualization_cpu(void)
void kvm_arch_disable_virtualization_cpu(void)
{
- kvm_x86_call(hardware_disable)();
+ kvm_x86_call(disable_virtualization_cpu)();
drop_user_return_notifiers();
}
--
2.46.0.469.g59c65b2a67-goog
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