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NetBSD/amd64 in qemu

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• To: port-amd64%NetBSD.org@localhost
• Subject: NetBSD/amd64 in qemu
• From: jakllsch%kollasch.net@localhost
• Date: 2008年2月12日 19:40:36 -0600

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Hi,
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
changing
 movl CPUVAR(IUNMASK)(,%edi,4), %edx
to
 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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