From: Pavan Kumar Paluri <papaluri@amd.com>
To: <linux-kernel@vger.kernel.org>, <linux-doc@vger.kernel.org>
Cc: Borislav Petkov <bp@alien8.de>,
Thomas Gleixner <tglx@linutronix.de>,
"Ingo Molnar" <mingo@redhat.com>,
Dave Hansen <dave.hansen@linux.intel.com>,
"Eric Van Tassell" <Eric.VanTassell@amd.com>,
Tom Lendacky <thomas.lendacky@amd.com>,
Ashish Kalra <ashish.kalra@amd.com>,
Michael Roth <michael.roth@amd.com>,
Brijesh Singh <brijesh.singh@amd.com>,
"H . Peter Anvin" <hpa@zytor.com>,
Peter Zijlstra <peterz@infradead.org>,
"Pavan Kumar Paluri" <papaluri@amd.com>
Subject: [PATCH 0/2] "nosnp" sev command line support
Date: Thu, 1 Aug 2024 15:56:36 -0500 [thread overview]
Message-ID: <20240801205638.6603-1-papaluri@amd.com> (raw)
Provide "nosnp" boot option via "sev=nosnp" kernel command line to
prevent SNP-capable host kernel from enabling SEV-SNP and initializing
RMP table.
On providing sev=nosnp via kernel command line:
cat /sys/module/kvm_amd/parameters/sev_snp should be "N".
This patchset is based on tip/master.
Any feedback is much appreciated.
Pavan
---
Pavan Kumar Paluri (2):
x86, KVM:SVM: Move sev specific parsing into arch/x86/virt/svm
x86 KVM:SVM: Provide "nosnp" boot option for sev kernel command line
.../arch/x86/x86_64/boot-options.rst | 3 ++
arch/x86/coco/sev/core.c | 44 -------------------
arch/x86/include/asm/sev-common.h | 27 ++++++++++++
arch/x86/virt/svm/Makefile | 1 +
arch/x86/virt/svm/cmdline.c | 38 ++++++++++++++++
5 files changed, 69 insertions(+), 44 deletions(-)
create mode 100644 arch/x86/virt/svm/cmdline.c
base-commit: 6d9b02543ea85fcef2595e0a7a63a336ea2ac5e1
--
2.34.1
next reply other threads:[~2024-08-01 20:56 UTC|newest]
Thread overview: 13+ messages / expand[flat|nested] mbox.gz Atom feed top
2024-08-01 20:56 Pavan Kumar Paluri [this message]
2024-08-01 20:56 ` [PATCH 1/2] x86, KVM:SVM: Move sev specific parsing into arch/x86/virt/svm Pavan Kumar Paluri
2024-08-02 14:18 ` Tom Lendacky
2024-08-29 13:24 ` Borislav Petkov
2024-08-29 14:22 ` Borislav Petkov
2024-08-29 15:29 ` Paluri, PavanKumar
2024-08-29 15:41 ` Borislav Petkov
2024-08-29 15:53 ` Paluri, PavanKumar
2024-08-01 20:56 ` [PATCH 2/2] x86 KVM:SVM: Provide "nosnp" boot option for sev kernel command line Pavan Kumar Paluri
2024-08-02 14:19 ` Tom Lendacky
2024-08-01 20:58 ` [PATCH 0/2] "nosnp" sev command line support Matthew Wilcox
2024-08-01 22:23 ` Paluri, PavanKumar
2024-08-01 22:39 ` Matthew Wilcox
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