Re: [RFC FIX PATCH] x86/e820: Stop kernel boot when RAM resource reservation fails

From: Boris Petkov
Date: Mon Jul 18 2022 - 06:42:25 EST


On July 18, 2022 8:58:15 AM UTC, Bharata B Rao <bharata@xxxxxxx> wrote:
>Currently it is possible to start a guest with memory that
>is beyond the addressable range of CPU. This can typically
>be done by using QEMU without explicilty specifying the max
>physical addressable bits (via phys-bits or host-phys-bits
>options). In such cases QEMU will start the guest with more
>than 1TB memory but would implicitly limit the phys-bits to 40.

Why does the upstream kernel care about some weird qemu guest configurations?

--
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