Re: [PATCH v9 02/43] KVM: SVM: Create a separate mapping for the SEV-ES save area
From: Brijesh Singh <hidden>
Date: 2022-02-09 15:02:30
Also in:
kvm, linux-efi, linux-mm, lkml, platform-driver-x86
On 2/1/22 7:02 AM, Borislav Petkov wrote:
On Fri, Jan 28, 2022 at 11:17:23AM -0600, Brijesh Singh wrote:quoted
From: Tom Lendacky <thomas.lendacky@amd.com> The save area for SEV-ES/SEV-SNP guests, as used by the hardware, is different from the save area of a non SEV-ES/SEV-SNP guest. This is the first step in defining the multiple save areas to keep them separate and ensuring proper operation amongst the different types of guests. Create an SEV-ES/SEV-SNP save area and adjust usage to the new save area definition where needed. Reviewed-by: Venu Busireddy <redacted> Signed-off-by: Tom Lendacky <thomas.lendacky@amd.com> Signed-off-by: Brijesh Singh <redacted> --- arch/x86/include/asm/svm.h | 87 +++++++++++++++++++++++++++++--------- arch/x86/kvm/svm/sev.c | 24 +++++------ arch/x86/kvm/svm/svm.h | 2 +- 3 files changed, 80 insertions(+), 33 deletions(-)https://nam11.safelinks.protection.outlook.com/?url=https%3A%2F%2Flore.kernel.org%2Fr%2FYc2jzOunYej4vwSc%40zn.tnic&data=04%7C01%7Cbrijesh.singh%40amd.com%7C909b88bb6fb14010859508d9e583268e%7C3dd8961fe4884e608e11a82d994e183d%7C0%7C0%7C637793173738404187%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C3000&sdata=uOR2wyzO1%2B6K%2B%2FhZCkwlRrfQutFqpSzXKh8RVbub9cA%3D&reserved=0
The rename may touch more files in KVM subsystem, so, I'll work on this feedback while adding the SNP host support, and will submit it as a per-requisite for the host support. -Brijesh