Re: [PATCH v9 02/43] KVM: SVM: Create a separate mapping for the SEV-ES save area
From: Brijesh Singh
Date: Wed Feb 09 2022 - 10:02:29 EST
On 2/1/22 7:02 AM, Borislav Petkov wrote:
On Fri, Jan 28, 2022 at 11:17:23AM -0600, Brijesh Singh wrote:
From: Tom Lendacky <thomas.lendacky@xxxxxxx>
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 <venu.busireddy@xxxxxxxxxx>
Signed-off-by: Tom Lendacky <thomas.lendacky@xxxxxxx>
Signed-off-by: Brijesh Singh <brijesh.singh@xxxxxxx>
---
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(-)
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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