Re: Software breakpoint in kvmppc guest debug

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On Tue, 9 Nov 2010 18:14:31 +0100
Alexander Graf <agraf@xxxxxxx> wrote:

> Now, if we can get away with not using an undefined instruction (be it sc 64 or trap) I don't know. I'm not even sure we can get away with trap. Basically, WARN_ON should also trigger a trap, so you'd end up in gdb for that when having a breakpoint defined.

There'd need to be a way for qemu/gdb to have KVM reflect the exception
to the guest if it doesn't have a breakpoint on file for that address.

-Scott

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