All of lore.kernel.org
 help / color / mirror / Atom feed
From: Linus Torvalds <torvalds@linux-foundation.org>
To: Brian Gerst <brgerst@gmail.com>
Cc: Andy Lutomirski <luto@amacapital.net>,
	"H. Peter Anvin" <hpa@zytor.com>,
	Linux Kernel Mailing List <linux-kernel@vger.kernel.org>,
	"linux-tip-commits@vger.kernel.org" 
	<linux-tip-commits@vger.kernel.org>,
	Thomas Gleixner <tglx@linutronix.de>,
	Borislav Petkov <bp@alien8.de>,
	Peter Zijlstra <peterz@infradead.org>,
	Ingo Molnar <mingo@kernel.org>,
	Denys Vlasenko <dvlasenk@redhat.com>
Subject: Re: [tip:x86/urgent] x86/entry/32: Add an ASM_CLAC to entry_SYSENTER_32
Date: Thu, 25 Feb 2016 12:54:50 -0800	[thread overview]
Message-ID: <CA+55aFxVWj+25Er_nBqdsO=0s3HXqpTTwvQipxc=GO-zFwvHFQ@mail.gmail.com> (raw)
In-Reply-To: <CAMzpN2i7n449-W_acrojUCyd=F0y3C4G650mBgcY-6AfibpfkQ@mail.gmail.com>

On Thu, Feb 25, 2016 at 11:31 AM, Brian Gerst <brgerst@gmail.com> 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.

                 Linus

      parent reply	other threads:[~2016-02-25 20:54 UTC|newest]

Thread overview: 21+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2016-02-23 21:19 [PATCH] x86/entry/32: Add an ASM_CLAC to entry_SYSENTER_32 Andy Lutomirski
2016-02-24 15:46 ` Brian Gerst
2016-02-24 16:56   ` Andy Lutomirski
2016-02-25  5:53 ` [tip:x86/urgent] " tip-bot for Andy Lutomirski
2016-02-25  6:00   ` H. Peter Anvin
2016-02-25  8:07     ` Andy Lutomirski
2016-02-25  8:11       ` Andy Lutomirski
2016-02-25  8:14       ` Ingo Molnar
2016-02-25  8:29         ` Mike Galbraith
2016-02-25  8:40           ` Ingo Molnar
2016-02-25  9:08             ` Mike Galbraith
     [not found]     ` <CALCETrWqCnhxvQ5qNp_O_7K7KW1H3FmHiX=mp+C5oeBEx=3YVA@mail.gmail.com>
2016-02-25 13:47       ` Brian Gerst
2016-02-25 15:42         ` Brian Gerst
2016-02-25 18:20           ` Andy Lutomirski
2016-02-25 18:30             ` Linus Torvalds
2016-02-25 18:40               ` Andy Lutomirski
2016-02-25 19:31               ` Brian Gerst
2016-02-25 19:39                 ` Andy Lutomirski
2016-02-25 19:49                   ` Brian Gerst
2016-02-25 19:52                     ` Andy Lutomirski
2016-02-25 20:54                 ` Linus Torvalds [this message]

Reply instructions:

You may reply publicly to this message via plain-text email
using any one of the following methods:

* Save the following mbox file, import it into your mail client,
  and reply-to-all from there: mbox

  Avoid top-posting and favor interleaved quoting:
  https://en.wikipedia.org/wiki/Posting_style#Interleaved_style

* Reply using the --to, --cc, and --in-reply-to
  switches of git-send-email(1):

  git send-email \
    --in-reply-to='CA+55aFxVWj+25Er_nBqdsO=0s3HXqpTTwvQipxc=GO-zFwvHFQ@mail.gmail.com' \
    --to=torvalds@linux-foundation.org \
    --cc=bp@alien8.de \
    --cc=brgerst@gmail.com \
    --cc=dvlasenk@redhat.com \
    --cc=hpa@zytor.com \
    --cc=linux-kernel@vger.kernel.org \
    --cc=linux-tip-commits@vger.kernel.org \
    --cc=luto@amacapital.net \
    --cc=mingo@kernel.org \
    --cc=peterz@infradead.org \
    --cc=tglx@linutronix.de \
    /path/to/YOUR_REPLY

  https://kernel.org/pub/software/scm/git/docs/git-send-email.html

* If your mail client supports setting the In-Reply-To header
  via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line before the message body. 
This is an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.