Messages in this thread | | | Date | Mon, 18 Jul 2022 20:24:08 +0530 | Subject | Re: [RFC FIX PATCH] x86/e820: Stop kernel boot when RAM resource reservation fails | From | Bharata B Rao <> |
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On 7/18/2022 4:12 PM, Boris Petkov wrote: > On July 18, 2022 8:58:15 AM UTC, Bharata B Rao <bharata@amd.com> 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?
It may be a weird guest configuration, but it looks like a kernel bug exposed by QEMU.
Regards, Bharata
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