diff options
| author | John Allen <john.allen@amd.com> | 2025-09-19 15:32:44 -0700 |
|---|---|---|
| committer | Sean Christopherson <seanjc@google.com> | 2025-09-23 09:28:23 -0700 |
| commit | c7586aa3bed4969cc7345940e5a331efd614f41d (patch) | |
| tree | 82a278f529928fc1733a6632d93e71a2a7524e45 | |
| parent | c5ba49458513bd1ecd669d4ec7124e788b19347c (diff) | |
KVM: SVM: Update dump_vmcb with shadow stack save area additions
Add shadow stack VMCB fields to dump_vmcb. PL0_SSP, PL1_SSP, PL2_SSP,
PL3_SSP, and U_CET are part of the SEV-ES save area and are encrypted,
but can be decrypted and dumped if the guest policy allows debugging.
Reviewed-by: Maxim Levitsky <mlevitsk@redhat.com>
Signed-off-by: John Allen <john.allen@amd.com>
Link: https://lore.kernel.org/r/20250919223258.1604852-38-seanjc@google.com
Signed-off-by: Sean Christopherson <seanjc@google.com>
| -rw-r--r-- | arch/x86/kvm/svm/svm.c | 11 |
1 files changed, 11 insertions, 0 deletions
diff --git a/arch/x86/kvm/svm/svm.c b/arch/x86/kvm/svm/svm.c index b977ea4a46e7..bea8bfea74f9 100644 --- a/arch/x86/kvm/svm/svm.c +++ b/arch/x86/kvm/svm/svm.c @@ -3411,6 +3411,10 @@ static void dump_vmcb(struct kvm_vcpu *vcpu) pr_err("%-15s %016llx %-13s %016llx\n", "rsp:", save->rsp, "rax:", save->rax); pr_err("%-15s %016llx %-13s %016llx\n", + "s_cet:", save->s_cet, "ssp:", save->ssp); + pr_err("%-15s %016llx\n", + "isst_addr:", save->isst_addr); + pr_err("%-15s %016llx %-13s %016llx\n", "star:", save01->star, "lstar:", save01->lstar); pr_err("%-15s %016llx %-13s %016llx\n", "cstar:", save01->cstar, "sfmask:", save01->sfmask); @@ -3435,6 +3439,13 @@ static void dump_vmcb(struct kvm_vcpu *vcpu) "sev_features", vmsa->sev_features); pr_err("%-15s %016llx %-13s %016llx\n", + "pl0_ssp:", vmsa->pl0_ssp, "pl1_ssp:", vmsa->pl1_ssp); + pr_err("%-15s %016llx %-13s %016llx\n", + "pl2_ssp:", vmsa->pl2_ssp, "pl3_ssp:", vmsa->pl3_ssp); + pr_err("%-15s %016llx\n", + "u_cet:", vmsa->u_cet); + + pr_err("%-15s %016llx %-13s %016llx\n", "rax:", vmsa->rax, "rbx:", vmsa->rbx); pr_err("%-15s %016llx %-13s %016llx\n", "rcx:", vmsa->rcx, "rdx:", vmsa->rdx); |