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Re: [Qemu-devel] [PATCH] exec.c: simplify the breakpoint invalidation lo


From: Paolo Bonzini
Subject: Re: [Qemu-devel] [PATCH] exec.c: simplify the breakpoint invalidation logic
Date: Wed, 7 Dec 2016 06:32:10 -0500 (EST)

> I think this is the wrong direction. We only need to invalidate
> the TBs for the specific location the breakpoint is at.
> Even if we for the moment want to apply a big hammer of doing
> a full tb flush on breakpoint to fix this issue for this release,
> we shouldn't drop the indirection through breakpoint_invalidate(),
> because then we can't go back to invalidating just the parts we need
> easily later.

I agree with Peter, but still this patch should be fine for
2.8 and we can revert it when MTTCG locking is merged.

Paolo



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