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| author | Yosry Ahmed <yosry@kernel.org> | 2026-06-09 17:30:28 -0700 |
|---|---|---|
| committer | Sean Christopherson <seanjc@google.com> | 2026-06-17 17:56:15 -0700 |
| commit | 4c396f19de5d59b8993d9606b1e72d9a7def4e76 (patch) | |
| tree | 85512c0e6458ac9b86719e64e85fa791d95cee84 /tools/testing/selftests/kvm/x86/nested_tdp_fault_test.c | |
| parent | 54adab32d3e0fc0605b4488cce51cce64a82f04d (diff) | |
| download | linux-next-4c396f19de5d59b8993d9606b1e72d9a7def4e76.tar.gz linux-next-4c396f19de5d59b8993d9606b1e72d9a7def4e76.zip | |
KVM: selftests: Drop L1-provided stacks for L2 guests on x86
Now that a dedicated page is allocated for L2's stack and stuffed in
RSP, the L1-provided stack is unused. Drop the stacks allocated by L1
guest code for L2 in all x86 tests.
Suggested-by: Sean Christopherson <seanjc@google.com>
Signed-off-by: Yosry Ahmed <yosry@kernel.org>
Link: https://patch.msgid.link/20260610003030.2957261-4-seanjc@google.com
Signed-off-by: Sean Christopherson <seanjc@google.com>
Diffstat (limited to 'tools/testing/selftests/kvm/x86/nested_tdp_fault_test.c')
| -rw-r--r-- | tools/testing/selftests/kvm/x86/nested_tdp_fault_test.c | 9 |
1 files changed, 2 insertions, 7 deletions
diff --git a/tools/testing/selftests/kvm/x86/nested_tdp_fault_test.c b/tools/testing/selftests/kvm/x86/nested_tdp_fault_test.c index fa95568f55ff..2e04563790ff 100644 --- a/tools/testing/selftests/kvm/x86/nested_tdp_fault_test.c +++ b/tools/testing/selftests/kvm/x86/nested_tdp_fault_test.c @@ -9,8 +9,6 @@ #include "svm_util.h" #include "vmx.h" -#define L2_GUEST_STACK_SIZE 64 - enum test_type { TEST_FINAL_PAGE_UNMAPPED, /* Final data page not present */ TEST_PT_PAGE_UNMAPPED, /* Page table page not present */ @@ -54,14 +52,13 @@ static void l2_guest_code_ins(void) static void l1_vmx_code(struct vmx_pages *vmx, u64 expected_fault_gpa, u64 test_type) { - unsigned long l2_guest_stack[L2_GUEST_STACK_SIZE]; u64 exit_qual; GUEST_ASSERT(vmx->vmcs_gpa); GUEST_ASSERT(prepare_for_vmx_operation(vmx)); GUEST_ASSERT(load_vmcs(vmx)); - prepare_vmcs(vmx, l2_entry, &l2_guest_stack[L2_GUEST_STACK_SIZE]); + prepare_vmcs(vmx, l2_entry); GUEST_ASSERT(!vmlaunch()); @@ -120,12 +117,10 @@ static void l1_vmx_code(struct vmx_pages *vmx, u64 expected_fault_gpa, static void l1_svm_code(struct svm_test_data *svm, u64 expected_fault_gpa, u64 test_type) { - unsigned long l2_guest_stack[L2_GUEST_STACK_SIZE]; struct vmcb *vmcb = svm->vmcb; u64 exit_info_1; - generic_svm_setup(svm, l2_entry, - &l2_guest_stack[L2_GUEST_STACK_SIZE]); + generic_svm_setup(svm, l2_entry); run_guest(vmcb, svm->vmcb_gpa); |