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Date:   Tue, 24 Nov 2020 10:04:31 +0100
From:   Borislav Petkov <bp@alien8.de>
To:     Ashish Kalra <ashish.kalra@amd.com>
Cc:     Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>, hch@lst.de,
        tglx@linutronix.de, mingo@redhat.com, hpa@zytor.com,
        x86@kernel.org, luto@kernel.org, peterz@infradead.org,
        dave.hansen@linux-intel.com, iommu@lists.linux-foundation.org,
        linux-kernel@vger.kernel.org, brijesh.singh@amd.com,
        Thomas.Lendacky@amd.com, jon.grimm@amd.com, rientjes@google.com
Subject: Re: [PATCH v6] swiotlb: Adjust SWIOTBL bounce buffer size for SEV
 guests.
Message-ID: <20201124090431.GC4009@zn.tnic>
References: <20201119214205.11062-1-Ashish.Kalra@amd.com>
 <20201123170647.GE15044@zn.tnic>
 <20201123175632.GA21539@char.us.oracle.com>
 <20201123225631.GA16055@ashkalra_ubuntu_server>
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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?

-- 
Regards/Gruss,
    Boris.

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