diff options
Diffstat (limited to 'tools/testing/selftests/kvm/x86_64/evmcs_test.c')
| -rw-r--r-- | tools/testing/selftests/kvm/x86_64/evmcs_test.c | 160 |
1 files changed, 0 insertions, 160 deletions
diff --git a/tools/testing/selftests/kvm/x86_64/evmcs_test.c b/tools/testing/selftests/kvm/x86_64/evmcs_test.c deleted file mode 100644 index ea3c73e8f4f6..000000000000 --- a/tools/testing/selftests/kvm/x86_64/evmcs_test.c +++ /dev/null @@ -1,160 +0,0 @@ -// SPDX-License-Identifier: GPL-2.0 -/* - * Copyright (C) 2018, Red Hat, Inc. - * - * Tests for Enlightened VMCS, including nested guest state. - */ -#define _GNU_SOURCE /* for program_invocation_short_name */ -#include <fcntl.h> -#include <stdio.h> -#include <stdlib.h> -#include <string.h> -#include <sys/ioctl.h> - -#include "test_util.h" - -#include "kvm_util.h" - -#include "vmx.h" - -#define VCPU_ID 5 - -static bool have_nested_state; - -void l2_guest_code(void) -{ - GUEST_SYNC(6); - - GUEST_SYNC(7); - - /* Done, exit to L1 and never come back. */ - vmcall(); -} - -void l1_guest_code(struct vmx_pages *vmx_pages) -{ -#define L2_GUEST_STACK_SIZE 64 - unsigned long l2_guest_stack[L2_GUEST_STACK_SIZE]; - - enable_vp_assist(vmx_pages->vp_assist_gpa, vmx_pages->vp_assist); - - GUEST_ASSERT(vmx_pages->vmcs_gpa); - GUEST_ASSERT(prepare_for_vmx_operation(vmx_pages)); - GUEST_SYNC(3); - GUEST_ASSERT(load_vmcs(vmx_pages)); - GUEST_ASSERT(vmptrstz() == vmx_pages->enlightened_vmcs_gpa); - - GUEST_SYNC(4); - GUEST_ASSERT(vmptrstz() == vmx_pages->enlightened_vmcs_gpa); - - prepare_vmcs(vmx_pages, l2_guest_code, - &l2_guest_stack[L2_GUEST_STACK_SIZE]); - - GUEST_SYNC(5); - GUEST_ASSERT(vmptrstz() == vmx_pages->enlightened_vmcs_gpa); - GUEST_ASSERT(!vmlaunch()); - GUEST_ASSERT(vmptrstz() == vmx_pages->enlightened_vmcs_gpa); - GUEST_SYNC(8); - GUEST_ASSERT(!vmresume()); - GUEST_ASSERT(vmreadz(VM_EXIT_REASON) == EXIT_REASON_VMCALL); - GUEST_SYNC(9); -} - -void guest_code(struct vmx_pages *vmx_pages) -{ - GUEST_SYNC(1); - GUEST_SYNC(2); - - if (vmx_pages) - l1_guest_code(vmx_pages); - - GUEST_DONE(); -} - -int main(int argc, char *argv[]) -{ - struct vmx_pages *vmx_pages = NULL; - vm_vaddr_t vmx_pages_gva = 0; - - struct kvm_regs regs1, regs2; - struct kvm_vm *vm; - struct kvm_run *run; - struct kvm_x86_state *state; - struct ucall uc; - int stage; - uint16_t evmcs_ver; - struct kvm_enable_cap enable_evmcs_cap = { - .cap = KVM_CAP_HYPERV_ENLIGHTENED_VMCS, - .args[0] = (unsigned long)&evmcs_ver - }; - - struct kvm_cpuid_entry2 *entry = kvm_get_supported_cpuid_entry(1); - - /* Create VM */ - vm = vm_create_default(VCPU_ID, 0, guest_code); - - vcpu_set_cpuid(vm, VCPU_ID, kvm_get_supported_cpuid()); - - if (!kvm_check_cap(KVM_CAP_NESTED_STATE) || - !kvm_check_cap(KVM_CAP_HYPERV_ENLIGHTENED_VMCS)) { - printf("capabilities not available, skipping test\n"); - exit(KSFT_SKIP); - } - - vcpu_ioctl(vm, VCPU_ID, KVM_ENABLE_CAP, &enable_evmcs_cap); - - run = vcpu_state(vm, VCPU_ID); - - vcpu_regs_get(vm, VCPU_ID, ®s1); - - vmx_pages = vcpu_alloc_vmx(vm, &vmx_pages_gva); - vcpu_args_set(vm, VCPU_ID, 1, vmx_pages_gva); - - for (stage = 1;; stage++) { - _vcpu_run(vm, VCPU_ID); - TEST_ASSERT(run->exit_reason == KVM_EXIT_IO, - "Stage %d: unexpected exit reason: %u (%s),\n", - stage, run->exit_reason, - exit_reason_str(run->exit_reason)); - - memset(®s1, 0, sizeof(regs1)); - vcpu_regs_get(vm, VCPU_ID, ®s1); - switch (get_ucall(vm, VCPU_ID, &uc)) { - case UCALL_ABORT: - TEST_ASSERT(false, "%s at %s:%d", (const char *)uc.args[0], - __FILE__, uc.args[1]); - /* NOT REACHED */ - case UCALL_SYNC: - break; - case UCALL_DONE: - goto done; - default: - TEST_ASSERT(false, "Unknown ucall 0x%x.", uc.cmd); - } - - /* UCALL_SYNC is handled here. */ - TEST_ASSERT(!strcmp((const char *)uc.args[0], "hello") && - uc.args[1] == stage, "Unexpected register values vmexit #%lx, got %lx", - stage, (ulong)uc.args[1]); - - state = vcpu_save_state(vm, VCPU_ID); - kvm_vm_release(vm); - - /* Restore state in a new VM. */ - kvm_vm_restart(vm, O_RDWR); - vm_vcpu_add(vm, VCPU_ID, 0, 0); - vcpu_set_cpuid(vm, VCPU_ID, kvm_get_supported_cpuid()); - vcpu_load_state(vm, VCPU_ID, state); - run = vcpu_state(vm, VCPU_ID); - free(state); - - memset(®s2, 0, sizeof(regs2)); - vcpu_regs_get(vm, VCPU_ID, ®s2); - TEST_ASSERT(!memcmp(®s1, ®s2, sizeof(regs2)), - "Unexpected register values after vcpu_load_state; rdi: %lx rsi: %lx", - (ulong) regs2.rdi, (ulong) regs2.rsi); - } - -done: - kvm_vm_free(vm); -} |