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Re: [Qemu-devel] QEMU, self-modifying code, and Windows 7 64-bit (no KVM

From: Paolo Bonzini
Subject: Re: [Qemu-devel] QEMU, self-modifying code, and Windows 7 64-bit (no KVM)
Date: Tue, 19 Aug 2014 08:16:39 +0200
User-agent: Mozilla/5.0 (X11; Linux x86_64; rv:24.0) Gecko/20100101 Thunderbird/24.7.0

Il 18/08/2014 22:50, Hulin, Patrick - 0559 - MITLL ha scritto:
>> >Correct. Doesn¹t work. Haven¹t fully diagnosed why, but it doesn¹t seem
>> >to ever hit the current_tb_modified passage if you invalidate beforehand.
> Yeah - mem_io_pc doesn¹t get updated until we¹re inside io_write, so
> tb_invalidate_phys_page_range thinks we¹re inside a different TB. As a
> result, it¹s ³is this TB modified² check still returns false.

We can set that (and probably mem_io_vaddr) before the for loop, too.


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