From: "H. Peter Anvin" <hpa@zytor.com>
To: Dave Young <dyoung@redhat.com>, Vivek Goyal <vgoyal@redhat.com>
Cc: Kees Cook <keescook@chromium.org>, Cong Ding <dinggnu@gmail.com>,
Richard Weinberger <richard.weinberger@gmail.com>,
Linus Torvalds <torvalds@linux-foundation.org>,
Ingo Molnar <mingo@elte.hu>,
Kexec Mailing List <kexec@lists.infradead.org>,
Linux Kernel Mailing List <linux-kernel@vger.kernel.org>,
Ingo Molnar <mingo@kernel.org>, Michael Davidson <md@google.com>,
Wei Yongjun <yongjun_wei@trendmicro.com.cn>,
Thomas Gleixner <tglx@linutronix.de>,
"H. Peter Anvin" <hpa@linux.intel.com>,
Yinghai Lu <yinghai@kernel.org>,
Mathias Krause <minipli@googlemail.com>
Subject: Re: [GIT PULL] x86/kaslr for v3.14
Date: Fri, 07 Feb 2014 15:20:32 -0800 [thread overview]
Message-ID: <52F56A40.60707@zytor.com> (raw)
In-Reply-To: <20140207231626.GA3840@dhcp-16-126.nay.redhat.com>
On 02/07/2014 03:16 PM, Dave Young wrote:
>
> Hi Vivek,
>
> Chaowang <chaowang@redhat.com> is looking into passing setup_data SETUP_E820_EXT
> instead of using exactmap. Previously Thomas Renninger tried passing them in e820.
> I did not find the old thread, but I remember it's not enough because of the
> 128 entries limitation.
>
THERE IS NO SUCH LIMITATION.
Only 128 slots fit in struct boot_params, but additional entries can be
added to the setup_data linked list.
-hpa
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WARNING: multiple messages have this Message-ID (diff)
From: "H. Peter Anvin" <hpa@zytor.com>
To: Dave Young <dyoung@redhat.com>, Vivek Goyal <vgoyal@redhat.com>
Cc: "H. Peter Anvin" <hpa@linux.intel.com>,
Kees Cook <keescook@chromium.org>, Cong Ding <dinggnu@gmail.com>,
Richard Weinberger <richard.weinberger@gmail.com>,
Kexec Mailing List <kexec@lists.infradead.org>,
Linux Kernel Mailing List <linux-kernel@vger.kernel.org>,
Mathias Krause <minipli@googlemail.com>,
Michael Davidson <md@google.com>,
Wei Yongjun <yongjun_wei@trendmicro.com.cn>,
Thomas Gleixner <tglx@linutronix.de>,
Yinghai Lu <yinghai@kernel.org>, Ingo Molnar <mingo@elte.hu>,
Linus Torvalds <torvalds@linux-foundation.org>,
Ingo Molnar <mingo@kernel.org>
Subject: Re: [GIT PULL] x86/kaslr for v3.14
Date: Fri, 07 Feb 2014 15:20:32 -0800 [thread overview]
Message-ID: <52F56A40.60707@zytor.com> (raw)
In-Reply-To: <20140207231626.GA3840@dhcp-16-126.nay.redhat.com>
On 02/07/2014 03:16 PM, Dave Young wrote:
>
> Hi Vivek,
>
> Chaowang <chaowang@redhat.com> is looking into passing setup_data SETUP_E820_EXT
> instead of using exactmap. Previously Thomas Renninger tried passing them in e820.
> I did not find the old thread, but I remember it's not enough because of the
> 128 entries limitation.
>
THERE IS NO SUCH LIMITATION.
Only 128 slots fit in struct boot_params, but additional entries can be
added to the setup_data linked list.
-hpa
next prev parent reply other threads:[~2014-02-07 23:21 UTC|newest]
Thread overview: 75+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-01-20 16:47 [GIT PULL] x86/kaslr for v3.14 H. Peter Anvin
2014-01-20 22:54 ` Linus Torvalds
2014-01-20 23:00 ` H. Peter Anvin
2014-01-20 23:12 ` Linus Torvalds
2014-01-20 23:13 ` H. Peter Anvin
2014-01-21 9:00 ` Peter Zijlstra
2014-01-21 14:20 ` H. Peter Anvin
2014-01-21 14:39 ` Ingo Molnar
2014-01-21 14:51 ` H. Peter Anvin
2014-01-21 14:56 ` Ingo Molnar
2014-01-21 18:37 ` Kees Cook
2014-01-21 10:27 ` Ingo Molnar
2014-01-21 13:55 ` H. Peter Anvin
2014-01-21 14:03 ` Ingo Molnar
2014-01-21 14:05 ` H. Peter Anvin
2014-01-21 14:14 ` Ingo Molnar
2014-01-21 14:17 ` H. Peter Anvin
2014-01-21 5:18 ` Kees Cook
2014-01-23 9:39 ` Pavel Machek
2014-01-26 10:16 ` Richard Weinberger
2014-01-27 5:33 ` H. Peter Anvin
2014-01-27 6:49 ` Richard Weinberger
2014-01-27 6:51 ` H. Peter Anvin
2014-01-27 7:38 ` Ingo Molnar
2014-01-27 7:43 ` Ingo Molnar
2014-01-27 7:59 ` Richard Weinberger
2014-01-30 22:07 ` Vivek Goyal
2014-01-31 16:57 ` Kees Cook
2014-02-07 14:49 ` Vivek Goyal
2014-02-07 16:04 ` H. Peter Anvin
2014-02-07 16:24 ` Vivek Goyal
2014-02-07 16:24 ` Vivek Goyal
2014-02-07 23:16 ` Dave Young
2014-02-07 23:16 ` Dave Young
2014-02-07 23:20 ` H. Peter Anvin [this message]
2014-02-07 23:20 ` H. Peter Anvin
2014-02-07 23:28 ` Dave Young
2014-02-07 23:28 ` Dave Young
2014-02-07 19:07 ` H. Peter Anvin
2014-02-07 19:44 ` Kees Cook
2014-02-07 19:44 ` Kees Cook
2014-01-27 6:52 ` H. Peter Anvin
2014-01-27 7:34 ` Richard Weinberger
2014-01-27 17:05 ` Kees Cook
2014-01-27 17:20 ` Richard Weinberger
2014-01-27 17:24 ` Kees Cook
2014-01-28 6:28 ` Ingo Molnar
2014-01-28 8:25 ` Richard Weinberger
2014-01-28 15:55 ` H. Peter Anvin
2014-01-28 16:25 ` Richard Weinberger
2014-01-28 16:30 ` H. Peter Anvin
2014-01-28 16:51 ` Linus Torvalds
2014-01-28 17:05 ` Ingo Molnar
2014-01-28 17:12 ` Linus Torvalds
2014-01-28 17:24 ` Richard Weinberger
2014-01-28 17:35 ` Linus Torvalds
2014-01-28 17:52 ` Richard Weinberger
2014-01-28 17:56 ` Linus Torvalds
2014-01-28 18:54 ` Richard Weinberger
2014-01-28 19:48 ` Ingo Molnar
2014-01-28 20:07 ` Linus Torvalds
2014-01-28 20:15 ` Borislav Petkov
2014-01-28 20:25 ` Linus Torvalds
2014-01-28 20:28 ` Richard Weinberger
2014-01-28 20:38 ` H. Peter Anvin
2014-01-29 8:25 ` Ingo Molnar
2014-01-29 10:40 ` Borislav Petkov
2014-01-28 20:49 ` Borislav Petkov
2014-01-28 23:37 ` Borislav Petkov
2014-01-28 21:08 ` Dave Jones
2014-01-29 6:36 ` Mike Galbraith
2014-01-29 8:11 ` Ingo Molnar
2014-01-29 8:27 ` Mathias Krause
2014-01-30 9:23 ` Ingo Molnar
2014-01-30 18:15 ` Linus Torvalds
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