Re: [PATCH v9 02/43] KVM: SVM: Create a separate mapping for the SEV-ES save area

[Borislav Petkov]

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(-)

https://lore.kernel.org/r/Yc2jzOunYej4vwSc@xxxxxxx

-- 
Regards/Gruss,
    Boris.

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