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Message-ID: <20230817181820.15315-3-john.allen@amd.com>
Date: Thu, 17 Aug 2023 18:18:14 +0000
From: John Allen <john.allen@....com>
To: <kvm@...r.kernel.org>
CC: <linux-kernel@...r.kernel.org>, <pbonzini@...hat.com>,
<weijiang.yang@...el.com>, <rick.p.edgecombe@...el.com>,
<seanjc@...gle.com>, <x86@...nel.org>, <thomas.lendacky@....com>,
<bp@...en8.de>, John Allen <john.allen@....com>
Subject: [RFC PATCH v3 2/8] KVM: x86: SVM: Update dump_vmcb with shadow stack save area additions
Add shadow stack VMCB save area fields to dump_vmcb. Only include S_CET,
SSP, and ISST_ADDR. Since there currently isn't support to decrypt and
dump the SEV-ES save area, exclude PL0_SSP, PL1_SSP, PL2_SSP, PL3_SSP, and
U_CET which are only inlcuded in the SEV-ES save area.
Signed-off-by: John Allen <john.allen@....com>
---
arch/x86/kvm/svm/svm.c | 4 ++++
1 file changed, 4 insertions(+)
diff --git a/arch/x86/kvm/svm/svm.c b/arch/x86/kvm/svm/svm.c
index 57864e83f634..1ac5b51c3f2c 100644
--- a/arch/x86/kvm/svm/svm.c
+++ b/arch/x86/kvm/svm/svm.c
@@ -3386,6 +3386,10 @@ static void dump_vmcb(struct kvm_vcpu *vcpu)
"rip:", save->rip, "rflags:", save->rflags);
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",
--
2.39.1
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