Re: [Qemu-devel] [PULL 04/26] target-*: Introduce and use cpu_breakpoint_test

[Richard Henderson]

On 10/14/2015 12:40 AM, Sergey Fedorov wrote:
> Otherwise, "!(tb_end <= start || tb_start >= end)" condition
> check will fail
...
> So we either
> need to change the condition in tb_invalidate_phys_page_range() or do
> the PC advancement trick during translation, no matter can instructions
> cross a page boundary or not.

I think you're right.

The reason I've not seen an issue so far is that breakpoint_invalidate expands 
the requested range to the entire page.  So the failure to invalidate would 
require the breakpoint to be at the page boundary.


r~