Messages in this thread | | | From | "Kalra, Ashish" <> | Subject | Re: [PATCH v6] swiotlb: Adjust SWIOTBL bounce buffer size for SEV guests. | Date | Tue, 24 Nov 2020 09:25:06 +0000 |
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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. > > https://nam11.safelinks.protection.outlook.com/?url=https%3A%2F%2Fpeople.kernel.org%2Ftglx%2Fnotes-about-netiquette&data=04%7C01%7Cashish.kalra%40amd.com%7C0766422bcee64d2eb57208d89057f620%7C3dd8961fe4884e608e11a82d994e183d%7C0%7C0%7C637418054797950694%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C1000&sdata=%2FEFuRGOMOu4BZUkPOd9rxam%2BBA3nXj4tdRFFj3nQ47U%3D&reserved=0
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