From: Sean Christopherson <[email protected]> Add VM_TYPE() and __VM_TYPE() macros to create a vm_shape structure given a type (and mode), and use the macros to define VM_SHAPE_{SEV,SEV_ES,SNP} shapes for x86's SEV family of VM shapes. Providing common infrastructure will avoid having to copy+paste vm_sev_create_with_one_vcpu() for TDX.
Use the new SEV+ shapes and drop vm_sev_create_with_one_vcpu(). No functional change intended. Signed-off-by: Sean Christopherson <[email protected]> Signed-off-by: Sagi Shahar <[email protected]> Reviewed-by: Binbin Wu <[email protected]> Reviewed-by: Ira Weiny <[email protected]> Signed-off-by: Lisa Wang <[email protected]> --- tools/testing/selftests/kvm/include/kvm_util.h | 13 +++++++ .../testing/selftests/kvm/include/x86/processor.h | 4 +++ tools/testing/selftests/kvm/include/x86/sev.h | 2 -- tools/testing/selftests/kvm/lib/x86/sev.c | 16 --------- tools/testing/selftests/kvm/x86/sev_smoke_test.c | 40 +++++++++++----------- 5 files changed, 37 insertions(+), 38 deletions(-) diff --git a/tools/testing/selftests/kvm/include/kvm_util.h b/tools/testing/selftests/kvm/include/kvm_util.h index dc70c6da63fa..041bdbfb93f7 100644 --- a/tools/testing/selftests/kvm/include/kvm_util.h +++ b/tools/testing/selftests/kvm/include/kvm_util.h @@ -233,6 +233,19 @@ kvm_static_assert(sizeof(struct vm_shape) == sizeof(u64)); shape; \ }) +#define __VM_TYPE(__mode, __type) \ +({ \ + struct vm_shape shape = { \ + .mode = (__mode), \ + .type = (__type) \ + }; \ + \ + shape; \ +}) + +#define VM_TYPE(__type) \ + __VM_TYPE(VM_MODE_DEFAULT, __type) + extern enum vm_guest_mode vm_mode_default; #if defined(__aarch64__) diff --git a/tools/testing/selftests/kvm/include/x86/processor.h b/tools/testing/selftests/kvm/include/x86/processor.h index 77f576ee7789..0aa6eecfcbde 100644 --- a/tools/testing/selftests/kvm/include/x86/processor.h +++ b/tools/testing/selftests/kvm/include/x86/processor.h @@ -365,6 +365,10 @@ static inline unsigned int x86_model(unsigned int eax) return ((eax >> 12) & 0xf0) | ((eax >> 4) & 0x0f); } +#define VM_SHAPE_SEV VM_TYPE(KVM_X86_SEV_VM) +#define VM_SHAPE_SEV_ES VM_TYPE(KVM_X86_SEV_ES_VM) +#define VM_SHAPE_SNP VM_TYPE(KVM_X86_SNP_VM) + #define PHYSICAL_PAGE_MASK GENMASK_ULL(51, 12) #define PAGE_SHIFT 12 diff --git a/tools/testing/selftests/kvm/include/x86/sev.h b/tools/testing/selftests/kvm/include/x86/sev.h index 1af44c151d60..944c59dbe510 100644 --- a/tools/testing/selftests/kvm/include/x86/sev.h +++ b/tools/testing/selftests/kvm/include/x86/sev.h @@ -53,8 +53,6 @@ void snp_vm_launch_start(struct kvm_vm *vm, u64 policy); void snp_vm_launch_update(struct kvm_vm *vm); void snp_vm_launch_finish(struct kvm_vm *vm); -struct kvm_vm *vm_sev_create_with_one_vcpu(u32 type, void *guest_code, - struct kvm_vcpu **cpu); void vm_sev_launch(struct kvm_vm *vm, u64 policy, u8 *measurement); kvm_static_assert(SEV_RET_SUCCESS == 0); diff --git a/tools/testing/selftests/kvm/lib/x86/sev.c b/tools/testing/selftests/kvm/lib/x86/sev.c index 93f916903461..95d8520eea34 100644 --- a/tools/testing/selftests/kvm/lib/x86/sev.c +++ b/tools/testing/selftests/kvm/lib/x86/sev.c @@ -158,22 +158,6 @@ void snp_vm_launch_finish(struct kvm_vm *vm) vm_sev_ioctl(vm, KVM_SEV_SNP_LAUNCH_FINISH, &launch_finish); } -struct kvm_vm *vm_sev_create_with_one_vcpu(u32 type, void *guest_code, - struct kvm_vcpu **cpu) -{ - struct vm_shape shape = { - .mode = VM_MODE_DEFAULT, - .type = type, - }; - struct kvm_vm *vm; - struct kvm_vcpu *cpus[1]; - - vm = __vm_create_with_vcpus(shape, 1, 0, guest_code, cpus); - *cpu = cpus[0]; - - return vm; -} - void vm_sev_launch(struct kvm_vm *vm, u64 policy, u8 *measurement) { if (is_sev_snp_vm(vm)) { diff --git a/tools/testing/selftests/kvm/x86/sev_smoke_test.c b/tools/testing/selftests/kvm/x86/sev_smoke_test.c index 1a49ee391586..fe2c438882ae 100644 --- a/tools/testing/selftests/kvm/x86/sev_smoke_test.c +++ b/tools/testing/selftests/kvm/x86/sev_smoke_test.c @@ -104,7 +104,7 @@ static void compare_xsave(u8 *from_host, u8 *from_guest) abort(); } -static void test_sync_vmsa(u32 type, u64 policy) +static void test_sync_vmsa(struct vm_shape shape, u64 policy) { struct kvm_vcpu *vcpu; struct kvm_vm *vm; @@ -114,7 +114,7 @@ static void test_sync_vmsa(u32 type, u64 policy) double x87val = M_PI; struct kvm_xsave __attribute__((aligned(64))) xsave = { 0 }; - vm = vm_sev_create_with_one_vcpu(type, guest_code_xsave, &vcpu); + vm = vm_create_shape_with_one_vcpu(shape, &vcpu, guest_code_xsave); gva = vm_alloc_shared(vm, PAGE_SIZE, KVM_UTIL_MIN_VADDR, MEM_REGION_TEST_DATA); hva = addr_gva2hva(vm, gva); @@ -150,13 +150,13 @@ static void test_sync_vmsa(u32 type, u64 policy) kvm_vm_free(vm); } -static void test_sev(void *guest_code, u32 type, u64 policy) +static void test_sev(void *guest_code, struct vm_shape shape, u64 policy) { struct kvm_vcpu *vcpu; struct kvm_vm *vm; struct ucall uc; - vm = vm_sev_create_with_one_vcpu(type, guest_code, &vcpu); + vm = vm_create_shape_with_one_vcpu(shape, &vcpu, guest_code); /* TODO: Validate the measurement is as expected. */ vm_sev_launch(vm, policy, NULL); @@ -201,12 +201,12 @@ static void guest_shutdown_code(void) __asm__ __volatile__("ud2"); } -static void test_sev_shutdown(u32 type, u64 policy) +static void test_sev_shutdown(struct vm_shape shape, u64 policy) { struct kvm_vcpu *vcpu; struct kvm_vm *vm; - vm = vm_sev_create_with_one_vcpu(type, guest_shutdown_code, &vcpu); + vm = vm_create_shape_with_one_vcpu(shape, &vcpu, guest_shutdown_code); vm_sev_launch(vm, policy, NULL); @@ -218,28 +218,28 @@ static void test_sev_shutdown(u32 type, u64 policy) kvm_vm_free(vm); } -static void test_sev_smoke(void *guest, u32 type, u64 policy) +static void test_sev_smoke(void *guest, struct vm_shape shape, u64 policy) { const u64 xf_mask = XFEATURE_MASK_X87_AVX; - if (type == KVM_X86_SNP_VM) - test_sev(guest, type, policy | SNP_POLICY_DBG); + if (shape.type == KVM_X86_SNP_VM) + test_sev(guest, shape, policy | SNP_POLICY_DBG); else - test_sev(guest, type, policy | SEV_POLICY_NO_DBG); - test_sev(guest, type, policy); + test_sev(guest, shape, policy | SEV_POLICY_NO_DBG); + test_sev(guest, shape, policy); - if (type == KVM_X86_SEV_VM) + if (shape.type == KVM_X86_SEV_VM) return; - test_sev_shutdown(type, policy); + test_sev_shutdown(shape, policy); if (kvm_has_cap(KVM_CAP_XCRS) && (xgetbv(0) & kvm_cpu_supported_xcr0() & xf_mask) == xf_mask) { - test_sync_vmsa(type, policy); - if (type == KVM_X86_SNP_VM) - test_sync_vmsa(type, policy | SNP_POLICY_DBG); + test_sync_vmsa(shape, policy); + if (shape.type == KVM_X86_SNP_VM) + test_sync_vmsa(shape, policy | SNP_POLICY_DBG); else - test_sync_vmsa(type, policy | SEV_POLICY_NO_DBG); + test_sync_vmsa(shape, policy | SEV_POLICY_NO_DBG); } } @@ -247,13 +247,13 @@ int main(int argc, char *argv[]) { TEST_REQUIRE(kvm_cpu_has(X86_FEATURE_SEV)); - test_sev_smoke(guest_sev_code, KVM_X86_SEV_VM, 0); + test_sev_smoke(guest_sev_code, VM_SHAPE_SEV, 0); if (kvm_cpu_has(X86_FEATURE_SEV_ES)) - test_sev_smoke(guest_sev_es_code, KVM_X86_SEV_ES_VM, SEV_POLICY_ES); + test_sev_smoke(guest_sev_es_code, VM_SHAPE_SEV_ES, SEV_POLICY_ES); if (kvm_cpu_has(X86_FEATURE_SEV_SNP)) - test_sev_smoke(guest_snp_code, KVM_X86_SNP_VM, snp_default_policy()); + test_sev_smoke(guest_snp_code, VM_SHAPE_SNP, snp_default_policy()); return 0; } -- 2.54.0.746.g67dd491aae-goog
