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NetBSD/amd64 in qemu


In Qemu 0.9.1, I've tested various versions of NetBSD/amd64,

NetBSD 3.1/amd64: Works

NetBSD 4.0/amd64: almost works (disable acpi in qemu or userconf)

NetBSD-current/amd64: needs a small fix:

In spllower() in amd64/amd64/spl.S

        movl    CPUVAR(IUNMASK)(,%edi,4), %edx


        movl    CPUVAR(IUNMASK)(,%rdi,4), %edx

allows the virtual CPU to not triple fault on this
instruction, early in the kernel.  I guessed at
this as the amd64_spllower() used %rdi, rather than %edi.

        Jonathan Kollasch

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