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From: Matt Fleming <matt@codeblueprint.co.uk>
To: Andy Lutomirski <luto@amacapital.net>
Cc: Ingo Molnar <mingo@kernel.org>,
	Linus Torvalds <torvalds@linux-foundation.org>,
	Stephen Smalley <sds@tycho.nsa.gov>,
	Dave Jones <davej@codemonkey.org.uk>,
	Linux Kernel Mailing List <linux-kernel@vger.kernel.org>,
	Thomas Gleixner <tglx@linutronix.de>,
	"H. Peter Anvin" <hpa@zytor.com>, Borislav Petkov <bp@alien8.de>,
	Andrew Morton <akpm@linux-foundation.org>,
	Andy Lutomirski <luto@kernel.org>,
	Denys Vlasenko <dvlasenk@redhat.com>,
	Kees Cook <keescook@chromium.org>,
	linux-efi@vger.kernel.org
Subject: Re: [GIT PULL] x86/mm changes for v4.4
Date: Fri, 6 Nov 2015 13:09:48 +0000	[thread overview]
Message-ID: <20151106130948.GD2651@codeblueprint.co.uk> (raw)
In-Reply-To: <CALCETrU2dn4TEj_2QiCPy4Mjw6hCbB84k1RnPzx7sLNygj4D5Q@mail.gmail.com>

On Thu, 05 Nov, at 11:05:35PM, Andy Lutomirski wrote:
> 
> Admittedly, we might need to use a certain amount of care to avoid
> interesting conflicts with the vmap mechanism.  We might need to vmap
> all of the EFI stuff, and possibly even all the top-level entries that
> contain EFI stuff (i.e. exactly one of them unless EFI ends up *huge*)
> as a blank not-present region to avoid overlaps, but that's not a big
> deal.

There shouldn't be any room for conflicting with vmap() because the VA
region where we map EFI regions is still carved out especially for us.

Right Boris?

  reply	other threads:[~2015-11-06 13:09 UTC|newest]

Thread overview: 26+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2015-11-03 11:16 [GIT PULL] x86/mm changes for v4.4 Ingo Molnar
2015-11-04 19:26 ` Linus Torvalds
2015-11-04 23:39   ` Dave Jones
2015-11-05  1:31     ` Linus Torvalds
2015-11-05  2:17       ` Dave Jones
2015-11-05 21:27         ` Linus Torvalds
2015-11-05 21:33           ` Linus Torvalds
2015-11-06 11:39             ` Matt Fleming
2015-11-07  7:05               ` Ingo Molnar
2015-11-07 10:03                 ` Matt Fleming
2015-11-05 22:04           ` Linus Torvalds
2015-11-05 22:27             ` Borislav Petkov
2015-11-06  6:55           ` Ingo Molnar
2015-11-06  7:05             ` Andy Lutomirski
2015-11-06 13:09               ` Matt Fleming [this message]
2015-11-06 13:24                 ` Borislav Petkov
2015-11-07  7:03               ` Ingo Molnar
2015-11-06  7:44             ` Ingo Molnar
2015-11-06 12:39             ` Matt Fleming
2015-11-07  7:09               ` Ingo Molnar
2015-11-07  7:39                 ` Ard Biesheuvel
2015-11-08  6:58                   ` Kees Cook
2015-11-08  7:55                     ` Ard Biesheuvel
2015-11-09 21:08                       ` Kees Cook
2015-11-10  7:08                         ` Ard Biesheuvel
2015-11-10 20:11                           ` Kees Cook

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