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[Qemu-devel] Re: [PATCH 02/17] lm32: translation routines
From: |
Michael Walle |
Subject: |
[Qemu-devel] Re: [PATCH 02/17] lm32: translation routines |
Date: |
Mon, 7 Feb 2011 23:55:11 +0100 |
User-agent: |
KMail/1.13.5 (Linux/2.6.32-5-686-bigmem; KDE/4.4.5; i686; ; ) |
On Mon, Feb 07 2011, 23:20:33, Edgar E. Iglesias wrote:
> Yes, I found the nop tracking handy too but It exposes a way for guests
> to completely abort the vm with valid code. On microblaze, even guest
> userspace can trig the cpu_abort. Your port doesn't have an MMU so guest
> userland can probably kill the vm anyway, so it might be less of an issue.
>
> Maybe the event could be logged instead of cpu_abort:ed?
If the program jumps to uninitialized memory, it'll likely execute until the
end of the memory and then kill the VM.
Maybe we can add some kind of runtime configuration option for
enabling/disabling this?
--
Michael