From: Peter Zijlstra <peterz@infradead.org>
To: David Woodhouse <dwmw@amazon.co.uk>
Cc: Andi Kleen <ak@linux.intel.com>, Paul Turner <pjt@google.com>,
LKML <linux-kernel@vger.kernel.org>,
Linus Torvalds <torvalds@linux-foundation.org>,
Greg Kroah-Hartman <gregkh@linux-foundation.org>,
Tim Chen <tim.c.chen@linux.intel.com>,
Dave Hansen <dave.hansen@intel.com>,
tglx@linutronix.de, Kees Cook <keescook@google.com>,
Rik van Riel <riel@redhat.com>,
Andy Lutomirski <luto@amacapital.net>,
Jiri Kosina <jikos@kernel.org>,
gnomes@lxorguk.ukuu.org.uk, x86@kernel.org, bp@alien8.de,
rga@amazon.de
Subject: Re: [PATCH] x86/retpoline: Fill return stack buffer on vmexit
Date: Thu, 11 Jan 2018 09:49:15 +0100 [thread overview]
Message-ID: <20180111084915.GU6176@hirez.programming.kicks-ass.net> (raw)
In-Reply-To: <1515624682-3556-1-git-send-email-dwmw@amazon.co.uk>
On Wed, Jan 10, 2018 at 10:51:22PM +0000, David Woodhouse wrote:
> This implements the most pressing of the RSB stuffing documented
> by dhansen (based our discussions) in https://goo.gl/pXbvBE
Only took me 3 readings to find interrupts/traps were in fact
enumerated. Could we plretty please separate them from the deep call
case? Also might make sense to explicitly mention SMI, as that will be
the most difficult to fix :-(
next prev parent reply other threads:[~2018-01-11 8:49 UTC|newest]
Thread overview: 19+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-01-10 22:51 [PATCH] x86/retpoline: Fill return stack buffer on vmexit David Woodhouse
2018-01-10 23:22 ` David Lang
2018-01-10 23:32 ` Woodhouse, David
2018-01-10 23:47 ` Tim Chen
2018-01-11 0:04 ` Woodhouse, David
2018-01-11 8:42 ` Peter Zijlstra
2018-01-11 8:49 ` Boris Petkov
2018-01-11 9:07 ` Woodhouse, David
2018-01-11 9:32 ` Peter Zijlstra
2018-01-11 9:47 ` Borislav Petkov
2018-01-11 9:58 ` Peter Zijlstra
2018-01-11 9:58 ` Woodhouse, David
2018-01-10 23:47 ` David Woodhouse
2018-01-11 0:14 ` Tom Lendacky
2018-01-11 1:04 ` David Woodhouse
2018-01-11 1:12 ` David Woodhouse
2018-01-12 0:34 ` Tom Lendacky
2018-01-11 8:49 ` Peter Zijlstra [this message]
2018-01-11 12:10 ` Woodhouse, David
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