[PATCH 06/42] KVM: selftests: Use kvm_cpu_has() for nested VMX checks
From: Sean Christopherson
Date: Fri Jun 03 2022 - 21:21:32 EST
Use kvm_cpu_has() to check for nested VMX support, and drop the helpers
now that their functionality is trivial to implement.
No functional change intended.
Signed-off-by: Sean Christopherson <seanjc@xxxxxxxxxx>
---
tools/testing/selftests/kvm/include/x86_64/vmx.h | 3 ---
tools/testing/selftests/kvm/lib/x86_64/vmx.c | 12 ------------
tools/testing/selftests/kvm/x86_64/evmcs_test.c | 2 +-
tools/testing/selftests/kvm/x86_64/hyperv_cpuid.c | 4 ++--
tools/testing/selftests/kvm/x86_64/smm_test.c | 2 +-
tools/testing/selftests/kvm/x86_64/state_test.c | 2 +-
.../selftests/kvm/x86_64/triple_fault_event_test.c | 2 +-
.../selftests/kvm/x86_64/vmx_apic_access_test.c | 2 +-
.../kvm/x86_64/vmx_close_while_nested_test.c | 2 +-
.../selftests/kvm/x86_64/vmx_dirty_log_test.c | 2 +-
.../kvm/x86_64/vmx_invalid_nested_guest_state.c | 2 +-
.../kvm/x86_64/vmx_nested_tsc_scaling_test.c | 2 +-
.../selftests/kvm/x86_64/vmx_preemption_timer_test.c | 2 +-
.../selftests/kvm/x86_64/vmx_set_nested_state_test.c | 2 +-
.../selftests/kvm/x86_64/vmx_tsc_adjust_test.c | 2 +-
15 files changed, 14 insertions(+), 29 deletions(-)
diff --git a/tools/testing/selftests/kvm/include/x86_64/vmx.h b/tools/testing/selftests/kvm/include/x86_64/vmx.h
index 583ceb0d1457..fe0ebb790b49 100644
--- a/tools/testing/selftests/kvm/include/x86_64/vmx.h
+++ b/tools/testing/selftests/kvm/include/x86_64/vmx.h
@@ -604,9 +604,6 @@ bool prepare_for_vmx_operation(struct vmx_pages *vmx);
void prepare_vmcs(struct vmx_pages *vmx, void *guest_rip, void *guest_rsp);
bool load_vmcs(struct vmx_pages *vmx);
-bool nested_vmx_supported(void);
-void nested_vmx_check_supported(void);
-
void nested_pg_map(struct vmx_pages *vmx, struct kvm_vm *vm,
uint64_t nested_paddr, uint64_t paddr);
void nested_map(struct vmx_pages *vmx, struct kvm_vm *vm,
diff --git a/tools/testing/selftests/kvm/lib/x86_64/vmx.c b/tools/testing/selftests/kvm/lib/x86_64/vmx.c
index 3ba8278c5086..6d4dee220fbf 100644
--- a/tools/testing/selftests/kvm/lib/x86_64/vmx.c
+++ b/tools/testing/selftests/kvm/lib/x86_64/vmx.c
@@ -372,18 +372,6 @@ void prepare_vmcs(struct vmx_pages *vmx, void *guest_rip, void *guest_rsp)
init_vmcs_guest_state(guest_rip, guest_rsp);
}
-bool nested_vmx_supported(void)
-{
- struct kvm_cpuid_entry2 *entry = kvm_get_supported_cpuid_entry(1);
-
- return entry->ecx & CPUID_VMX;
-}
-
-void nested_vmx_check_supported(void)
-{
- TEST_REQUIRE(nested_vmx_supported());
-}
-
void nested_pg_map(struct vmx_pages *vmx, struct kvm_vm *vm,
uint64_t nested_paddr, uint64_t paddr)
{
diff --git a/tools/testing/selftests/kvm/x86_64/evmcs_test.c b/tools/testing/selftests/kvm/x86_64/evmcs_test.c
index 8dda527cc080..d762cadb0ee9 100644
--- a/tools/testing/selftests/kvm/x86_64/evmcs_test.c
+++ b/tools/testing/selftests/kvm/x86_64/evmcs_test.c
@@ -208,7 +208,7 @@ int main(int argc, char *argv[])
vm = vm_create_with_one_vcpu(&vcpu, guest_code);
- TEST_REQUIRE(nested_vmx_supported());
+ TEST_REQUIRE(kvm_cpu_has(X86_FEATURE_VMX));
TEST_REQUIRE(kvm_has_cap(KVM_CAP_NESTED_STATE));
TEST_REQUIRE(kvm_has_cap(KVM_CAP_HYPERV_ENLIGHTENED_VMCS));
diff --git a/tools/testing/selftests/kvm/x86_64/hyperv_cpuid.c b/tools/testing/selftests/kvm/x86_64/hyperv_cpuid.c
index cbd4a7d36189..c406b95cba9b 100644
--- a/tools/testing/selftests/kvm/x86_64/hyperv_cpuid.c
+++ b/tools/testing/selftests/kvm/x86_64/hyperv_cpuid.c
@@ -148,7 +148,7 @@ int main(int argc, char *argv[])
test_hv_cpuid(hv_cpuid_entries, false);
free(hv_cpuid_entries);
- if (!nested_vmx_supported() ||
+ if (!kvm_cpu_has(X86_FEATURE_VMX) ||
!kvm_has_cap(KVM_CAP_HYPERV_ENLIGHTENED_VMCS)) {
print_skip("Enlightened VMCS is unsupported");
goto do_sys;
@@ -168,7 +168,7 @@ int main(int argc, char *argv[])
test_hv_cpuid_e2big(vm, NULL);
hv_cpuid_entries = kvm_get_supported_hv_cpuid();
- test_hv_cpuid(hv_cpuid_entries, nested_vmx_supported());
+ test_hv_cpuid(hv_cpuid_entries, kvm_cpu_has(X86_FEATURE_VMX));
out:
kvm_vm_free(vm);
diff --git a/tools/testing/selftests/kvm/x86_64/smm_test.c b/tools/testing/selftests/kvm/x86_64/smm_test.c
index 6b8108bdcead..40581704f129 100644
--- a/tools/testing/selftests/kvm/x86_64/smm_test.c
+++ b/tools/testing/selftests/kvm/x86_64/smm_test.c
@@ -156,7 +156,7 @@ int main(int argc, char *argv[])
if (kvm_check_cap(KVM_CAP_NESTED_STATE)) {
if (kvm_cpu_has(X86_FEATURE_SVM))
vcpu_alloc_svm(vm, &nested_gva);
- else if (nested_vmx_supported())
+ else if (kvm_cpu_has(X86_FEATURE_VMX))
vcpu_alloc_vmx(vm, &nested_gva);
}
diff --git a/tools/testing/selftests/kvm/x86_64/state_test.c b/tools/testing/selftests/kvm/x86_64/state_test.c
index fe110ce31106..35e96d7a6ba1 100644
--- a/tools/testing/selftests/kvm/x86_64/state_test.c
+++ b/tools/testing/selftests/kvm/x86_64/state_test.c
@@ -172,7 +172,7 @@ int main(int argc, char *argv[])
if (kvm_check_cap(KVM_CAP_NESTED_STATE)) {
if (kvm_cpu_has(X86_FEATURE_SVM))
vcpu_alloc_svm(vm, &nested_gva);
- else if (nested_vmx_supported())
+ else if (kvm_cpu_has(X86_FEATURE_VMX))
vcpu_alloc_vmx(vm, &nested_gva);
}
diff --git a/tools/testing/selftests/kvm/x86_64/triple_fault_event_test.c b/tools/testing/selftests/kvm/x86_64/triple_fault_event_test.c
index 5a202ecb8ea0..af68f60a51e8 100644
--- a/tools/testing/selftests/kvm/x86_64/triple_fault_event_test.c
+++ b/tools/testing/selftests/kvm/x86_64/triple_fault_event_test.c
@@ -46,7 +46,7 @@ int main(void)
vm_vaddr_t vmx_pages_gva;
struct ucall uc;
- nested_vmx_check_supported();
+ TEST_REQUIRE(kvm_cpu_has(X86_FEATURE_VMX));
TEST_REQUIRE(kvm_has_cap(KVM_CAP_X86_TRIPLE_FAULT_EVENT));
diff --git a/tools/testing/selftests/kvm/x86_64/vmx_apic_access_test.c b/tools/testing/selftests/kvm/x86_64/vmx_apic_access_test.c
index ccb05ef7234e..59e8e8c8a8f5 100644
--- a/tools/testing/selftests/kvm/x86_64/vmx_apic_access_test.c
+++ b/tools/testing/selftests/kvm/x86_64/vmx_apic_access_test.c
@@ -80,7 +80,7 @@ int main(int argc, char *argv[])
struct kvm_vcpu *vcpu;
struct kvm_vm *vm;
- nested_vmx_check_supported();
+ TEST_REQUIRE(kvm_cpu_has(X86_FEATURE_VMX));
vm = vm_create_with_one_vcpu(&vcpu, l1_guest_code);
diff --git a/tools/testing/selftests/kvm/x86_64/vmx_close_while_nested_test.c b/tools/testing/selftests/kvm/x86_64/vmx_close_while_nested_test.c
index 40c77bb706a1..92760eeeee97 100644
--- a/tools/testing/selftests/kvm/x86_64/vmx_close_while_nested_test.c
+++ b/tools/testing/selftests/kvm/x86_64/vmx_close_while_nested_test.c
@@ -51,7 +51,7 @@ int main(int argc, char *argv[])
struct kvm_vcpu *vcpu;
struct kvm_vm *vm;
- nested_vmx_check_supported();
+ TEST_REQUIRE(kvm_cpu_has(X86_FEATURE_VMX));
vm = vm_create_with_one_vcpu(&vcpu, l1_guest_code);
diff --git a/tools/testing/selftests/kvm/x86_64/vmx_dirty_log_test.c b/tools/testing/selftests/kvm/x86_64/vmx_dirty_log_test.c
index 215ffa0589d4..a81964c85747 100644
--- a/tools/testing/selftests/kvm/x86_64/vmx_dirty_log_test.c
+++ b/tools/testing/selftests/kvm/x86_64/vmx_dirty_log_test.c
@@ -77,7 +77,7 @@ int main(int argc, char *argv[])
struct ucall uc;
bool done = false;
- nested_vmx_check_supported();
+ TEST_REQUIRE(kvm_cpu_has(X86_FEATURE_VMX));
/* Create VM */
vm = vm_create_with_one_vcpu(&vcpu, l1_guest_code);
diff --git a/tools/testing/selftests/kvm/x86_64/vmx_invalid_nested_guest_state.c b/tools/testing/selftests/kvm/x86_64/vmx_invalid_nested_guest_state.c
index 683f4f0a1616..a714c260481f 100644
--- a/tools/testing/selftests/kvm/x86_64/vmx_invalid_nested_guest_state.c
+++ b/tools/testing/selftests/kvm/x86_64/vmx_invalid_nested_guest_state.c
@@ -58,7 +58,7 @@ int main(int argc, char *argv[])
struct kvm_run *run;
struct ucall uc;
- nested_vmx_check_supported();
+ TEST_REQUIRE(kvm_cpu_has(X86_FEATURE_VMX));
vm = vm_create_with_one_vcpu(&vcpu, l1_guest_code);
diff --git a/tools/testing/selftests/kvm/x86_64/vmx_nested_tsc_scaling_test.c b/tools/testing/selftests/kvm/x86_64/vmx_nested_tsc_scaling_test.c
index ff4644038c55..8edba1eee889 100644
--- a/tools/testing/selftests/kvm/x86_64/vmx_nested_tsc_scaling_test.c
+++ b/tools/testing/selftests/kvm/x86_64/vmx_nested_tsc_scaling_test.c
@@ -150,7 +150,7 @@ int main(int argc, char *argv[])
uint64_t l1_tsc_freq = 0;
uint64_t l2_tsc_freq = 0;
- nested_vmx_check_supported();
+ TEST_REQUIRE(kvm_cpu_has(X86_FEATURE_VMX));
TEST_REQUIRE(kvm_has_cap(KVM_CAP_TSC_CONTROL));
stable_tsc_check_supported();
diff --git a/tools/testing/selftests/kvm/x86_64/vmx_preemption_timer_test.c b/tools/testing/selftests/kvm/x86_64/vmx_preemption_timer_test.c
index 771b54b227d5..afae65249bc5 100644
--- a/tools/testing/selftests/kvm/x86_64/vmx_preemption_timer_test.c
+++ b/tools/testing/selftests/kvm/x86_64/vmx_preemption_timer_test.c
@@ -167,7 +167,7 @@ int main(int argc, char *argv[])
* AMD currently does not implement any VMX features, so for now we
* just early out.
*/
- nested_vmx_check_supported();
+ TEST_REQUIRE(kvm_cpu_has(X86_FEATURE_VMX));
TEST_REQUIRE(kvm_has_cap(KVM_CAP_NESTED_STATE));
diff --git a/tools/testing/selftests/kvm/x86_64/vmx_set_nested_state_test.c b/tools/testing/selftests/kvm/x86_64/vmx_set_nested_state_test.c
index b564b86dfc1d..66cb2d0054e6 100644
--- a/tools/testing/selftests/kvm/x86_64/vmx_set_nested_state_test.c
+++ b/tools/testing/selftests/kvm/x86_64/vmx_set_nested_state_test.c
@@ -273,7 +273,7 @@ int main(int argc, char *argv[])
* AMD currently does not implement set_nested_state, so for now we
* just early out.
*/
- nested_vmx_check_supported();
+ TEST_REQUIRE(kvm_cpu_has(X86_FEATURE_VMX));
vm = vm_create_with_one_vcpu(&vcpu, NULL);
diff --git a/tools/testing/selftests/kvm/x86_64/vmx_tsc_adjust_test.c b/tools/testing/selftests/kvm/x86_64/vmx_tsc_adjust_test.c
index e32bfb102699..2aecb21d4bda 100644
--- a/tools/testing/selftests/kvm/x86_64/vmx_tsc_adjust_test.c
+++ b/tools/testing/selftests/kvm/x86_64/vmx_tsc_adjust_test.c
@@ -127,7 +127,7 @@ int main(int argc, char *argv[])
vm_vaddr_t vmx_pages_gva;
struct kvm_vcpu *vcpu;
- nested_vmx_check_supported();
+ TEST_REQUIRE(kvm_cpu_has(X86_FEATURE_VMX));
vm = vm_create_with_one_vcpu(&vcpu, (void *) l1_guest_code);
--
2.36.1.255.ge46751e96f-goog