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67730e6c53
Use the kernel's canonical $(ARCH) paths instead of the raw target triple for KVM selftests directories. KVM selftests are quite nearly the only place in the entire kernel that using the target triple for directories, tools/testing/selftests/drivers/s390x being the lone holdout. Using the kernel's preferred nomenclature eliminates the minor, but annoying, friction of having to translate to KVM's selftests directories, e.g. for pattern matching, opening files, running selftests, etc. Opportunsitically delete file comments that reference the full path of the file, as they are obviously prone to becoming stale, and serve no known purpose. Reviewed-by: Muhammad Usama Anjum <usama.anjum@collabora.com> Acked-by: Claudio Imbrenda <imbrenda@linux.ibm.com> Acked-by: Andrew Jones <ajones@ventanamicro.com> Link: https://lore.kernel.org/r/20241128005547.4077116-16-seanjc@google.com Signed-off-by: Sean Christopherson <seanjc@google.com>
60 lines
1.4 KiB
C
60 lines
1.4 KiB
C
// SPDX-License-Identifier: GPL-2.0-only
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/*
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* svm_nested_shutdown_test
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*
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* Copyright (C) 2022, Red Hat, Inc.
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*
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* Nested SVM testing: test that unintercepted shutdown in L2 doesn't crash the host
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*/
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#include "test_util.h"
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#include "kvm_util.h"
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#include "processor.h"
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#include "svm_util.h"
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static void l2_guest_code(struct svm_test_data *svm)
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{
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__asm__ __volatile__("ud2");
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}
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static void l1_guest_code(struct svm_test_data *svm, struct idt_entry *idt)
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{
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#define L2_GUEST_STACK_SIZE 64
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unsigned long l2_guest_stack[L2_GUEST_STACK_SIZE];
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struct vmcb *vmcb = svm->vmcb;
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generic_svm_setup(svm, l2_guest_code,
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&l2_guest_stack[L2_GUEST_STACK_SIZE]);
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vmcb->control.intercept &= ~(BIT(INTERCEPT_SHUTDOWN));
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idt[6].p = 0; // #UD is intercepted but its injection will cause #NP
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idt[11].p = 0; // #NP is not intercepted and will cause another
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// #NP that will be converted to #DF
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idt[8].p = 0; // #DF will cause #NP which will cause SHUTDOWN
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run_guest(vmcb, svm->vmcb_gpa);
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/* should not reach here */
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GUEST_ASSERT(0);
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}
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int main(int argc, char *argv[])
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{
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struct kvm_vcpu *vcpu;
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vm_vaddr_t svm_gva;
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struct kvm_vm *vm;
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TEST_REQUIRE(kvm_cpu_has(X86_FEATURE_SVM));
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vm = vm_create_with_one_vcpu(&vcpu, l1_guest_code);
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vcpu_alloc_svm(vm, &svm_gva);
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vcpu_args_set(vcpu, 2, svm_gva, vm->arch.idt);
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vcpu_run(vcpu);
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TEST_ASSERT_KVM_EXIT_REASON(vcpu, KVM_EXIT_SHUTDOWN);
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kvm_vm_free(vm);
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}
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