Fix guest memory corruption caused by hvmloader #172
Conversation
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This should be sent to xen-devel mailing list first. Given the support status of qemu-traditional, it shouldn't be a controversial change. |
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openQArun |
OpenQA test summaryComplete test suite and dependencies: https://openqa.qubes-os.org/tests/overview?distri=qubesos&version=4.2&build=2023120205-4.2&flavor=kernel New failures, excluding unstableCompared to: https://openqa.qubes-os.org/tests/overview?distri=qubesos&version=4.2&build=2023112922-4.2&flavor=kernel
Failed tests4 failures
Fixed failuresCompared to: https://openqa.qubes-os.org/tests/86627#dependencies 26 fixed
Unstable tests
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for the moment I got no answer ( https://lists.xenproject.org/archives/html/xen-devel/2023-12/msg00133.html ) |
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Anyway I can help test this? I think this is related to this issue with R4.2 |
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https://lists.xenproject.org/archives/html/xen-devel/2023-12/msg01499.html ( @Garbage4F , I do not think that both issues are related. You could try to use "nvidia-open" driver instead of "nvidia", that is what I use on R4.2 for GPU passthrough ) |
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Since #175 is merged, this one is not needed anymore. |
The xen hvmloader is relocating memory and overwritting some part of guest memory.
It seem to be a known issue in xen since the behavior is documented in the source code, so idk if it should be reported to the xen project.
I tested this patch on my setup for a few days, saw no issues yet, and it fixed QubesOS/qubes-issues#4321