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Re: [Qemu-devel] [PATCH v5 08/11] target-i386: exception handling for se


From: Richard Henderson
Subject: Re: [Qemu-devel] [PATCH v5 08/11] target-i386: exception handling for seg_helper functions
Date: Mon, 6 Jul 2015 13:13:30 +0100
User-agent: Mozilla/5.0 (X11; Linux x86_64; rv:38.0) Gecko/20100101 Thunderbird/38.0.1

On 07/06/2015 09:26 AM, Pavel Dovgalyuk wrote:
This patch fixes exception handling for seg_helper functions.

Signed-off-by: Pavel Dovgalyuk <address@hidden>


No, you don't want to discriminately change every call. That was my original point about not needing to change seg_helper.c or smm_helper.c.

Further, any such changes would go along with the changes in translate.c to remove the state saving there.

I would only change those that are "normal" memory operations, like fp loads etc. The segmentation changes are rare. The task state helpers require state saving anyway, so requiring a TCG search is a pessimization.


r~




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