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SubjectRe: [PATCH v6] swiotlb: Adjust SWIOTBL bounce buffer size for SEV guests.
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> On Nov 24, 2020, at 3:04 AM, Borislav Petkov <bp@alien8.de> wrote:
>
> On Mon, Nov 23, 2020 at 10:56:31PM +0000, Ashish Kalra wrote:
>> As i mentioned earlier, the patch was initially based on using a % of
>> guest memory,
>
> Can you figure out how much the guest memory is and then allocate a
> percentage?

But what will be the criteria to figure out this percentage?

As I mentioned earlier, this can be made as complicated as possible by adding all kind of heuristics but without any predictable performance gain.

Or it can be kept simple by using a static percentage value.

Thanks,
Ashish

> --
> Regards/Gruss,
> Boris.
>
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