Re: [tip:x86/urgent] x86/entry/32: Add an ASM_CLAC to entry_SYSENTER_32

From: Linus Torvalds
Date: Thu Feb 25 2016 - 15:54:58 EST

On Thu, Feb 25, 2016 at 11:31 AM, Brian Gerst <brgerst@xxxxxxxxx> wrote:
> According to the SDM, popf will change IOPL only at CPL0,

Ok, so that's good enough for the native case, and adding a "popf"
would at least restore AC and IOPL.