Re: [Part2 PATCH v6 08/38] KVM: Introduce KVM_MEMORY_ENCRYPT_{UN,}REG_REGION ioctl

[Borislav Petkov]

On Thu, Oct 19, 2017 at 09:33:43PM -0500, Brijesh Singh wrote:
> If hardware supports memory encryption then KVM_MEMORY_ENCRYPT_REG_REGION
> and KVM_MEMORY_ENCRYPT_UNREG_REGION ioctl's can be used by userspace to
> register/unregister the guest memory regions which may contain the encrypted
> data (e.g guest RAM, PCI BAR, SMRAM etc).
> 
> Cc: Thomas Gleixner <tglx@xxxxxxxxxxxxx>
> Cc: Ingo Molnar <mingo@xxxxxxxxxx>
> Cc: "H. Peter Anvin" <hpa@xxxxxxxxx>
> Cc: Paolo Bonzini <pbonzini@xxxxxxxxxx>
> Cc: "Radim KrÄmÃÅ" <rkrcmar@xxxxxxxxxx>
> Cc: Joerg Roedel <joro@xxxxxxxxxx>
> Cc: Borislav Petkov <bp@xxxxxxx>
> Cc: Tom Lendacky <thomas.lendacky@xxxxxxx>
> Cc: x86@xxxxxxxxxx
> Cc: kvm@xxxxxxxxxxxxxxx
> Cc: linux-kernel@xxxxxxxxxxxxxxx
> Signed-off-by: Brijesh Singh <brijesh.singh@xxxxxxx>
> ---
>  Documentation/virtual/kvm/api.txt | 34 ++++++++++++++++++++++++++++++++++
>  arch/x86/include/asm/kvm_host.h   |  2 ++
>  arch/x86/kvm/x86.c                | 24 ++++++++++++++++++++++++
>  include/uapi/linux/kvm.h          |  8 ++++++++
>  4 files changed, 68 insertions(+)

Reviewed-by: Borislav Petkov <bp@xxxxxxx>
Improvements-by: Borislav Petkov <bp@xxxxxxx>

-- 
Regards/Gruss,
    Boris.

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