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    SubjectRe: [PATCH V7 2/5] x86/hyper-v: Add hyperv Isolation VM check in the cc_platform_has()
    On Mon, Dec 13, 2021 at 02:14:03AM -0500, Tianyu Lan wrote:
    > From: Tianyu Lan <Tianyu.Lan@microsoft.com>
    >
    > Hyper-V provides Isolation VM for confidential computing support and
    > guest memory is encrypted in it. Places checking cc_platform_has()
    > with GUEST_MEM_ENCRYPT attr should return "True" in Isolation vm. e.g,

    Stick to a single spelling variant: "VM".

    > swiotlb bounce buffer size needs to adjust according to memory size
    > in the sev_setup_arch().

    So basically you wanna simply say here:

    "Hyper-V Isolation VMs need to adjust the SWIOTLB size just like SEV
    guests. Add a hyperv_cc_platform_has() variant which enables that."

    ?

    With that addressed you can have my

    Acked-by: Borislav Petkov <bp@suse.de>

    Thx.

    --
    Regards/Gruss,
    Boris.

    https://people.kernel.org/tglx/notes-about-netiquette

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