Avi Kivity wrote:

kvm allows writing into the bios; qemu does not. I thought it was a kvm bug, but turns out that it's a qemu bug...

(though to be fair, true emulation ought to start out read-only, then be enabled by the bios ram shadow mechanism)


Yes, although simulating the memory "pre-shadowed" works just as well; then it should be marked readonly by the BIOS immediately prior to running INT 19h.

        -hpa
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