Re: [PATCH] x86: entry_32.S: change ESPFIX test to not touch PT_OLDSS(%esp)

From: Ingo Molnar
Date: Mon Mar 09 2015 - 11:14:30 EST



* Denys Vlasenko <vda.linux@xxxxxxxxxxxxxx> wrote:

> > That being said, what ends up in the high bits of esp when we iret
> > to vm86 mode?
>
> I don't know. I guess it's time to write an actual vm86 testcase :)

Btw., could you please stick it and your other testcases into
tools/x86/tests/ or so? Having such a testsuite would ease maintenance
considerably.

Thanks,

Ingo
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