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Re: [Qemu-devel] [PULL 00/10] MIPS queue for May 19th, 2019

From: Jakub Jermar
Subject: Re: [Qemu-devel] [PULL 00/10] MIPS queue for May 19th, 2019
Date: Sun, 19 May 2019 16:46:18 +0200
User-agent: Mozilla/5.0 (X11; Linux x86_64; rv:60.0) Gecko/20100101 Thunderbird/60.6.1

On 5/19/19 2:00 PM, Aleksandar Markovic wrote:
>>>   * A fix for HelenOS boot hang (related to the flag PAGE_EXEC)
>> This was rather a problem with failing non-executable page tests in
>> L4Re, not HelenOS. Even though I tested HelenOS for regressions.
> OK, Jakub, what would be your suggestion for a high-level description
> of this message for end users (it is definitely a change that affects end
> user)? Something like" Improved PAGE_EXEC flag handling"?

It makes sure that referenced pages are not automatically marked
executable by QEMU (despite the XI bit).

As a user-visible change, this might unbreak some tests that attempt to
execute data. Note that this fix does not affect pages that are not
referenced prior to being executed - those have worked fine.

Otherwise for normal code that does not attempt to execute data, things
should not change at all.


> Thanks,
> Aleksandar

Kernkonzept GmbH at Dresden, Germany, HRB 31129, CEO Dr.-Ing. Michael

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