From: "H. Peter Anvin" <hpa@zytor.com>
To: "Eric W. Biederman" <ebiederm@xmission.com>
Cc: Pavel Machek <pavel@suse.cz>, Vivek Goyal <vgoyal@in.ibm.com>,
linux kernel mailing list <linux-kernel@vger.kernel.org>,
Reloc Kernel List <fastboot@lists.osdl.org>,
akpm@osdl.org, ak@suse.de, magnus.damm@gmail.com,
lwang@redhat.com, dzickus@redhat.com
Subject: Re: [RFC] [PATCH 10/16] x86_64: 64bit PIC ACPI wakeup
Date: Tue, 14 Nov 2006 13:40:06 -0800 [thread overview]
Message-ID: <455A37B6.2020409@zytor.com> (raw)
In-Reply-To: <m1fyclk8ws.fsf@ebiederm.dsl.xmission.com>
Eric W. Biederman wrote:
>
>> Why is PGE no longer required, for example?
>
> PGE is never required. Especially on a temporary page table.
> PGE is an optimization, to make context switches faster.
>
You cannot, however, set the Global bit unless PGE is supported by the
CPU (you'll trap.)
-hpa
next prev parent reply other threads:[~2006-11-14 21:40 UTC|newest]
Thread overview: 51+ messages / expand[flat|nested] mbox.gz Atom feed top
2006-11-13 16:21 [RFC] [PATCH 0/16] x86_64: Relocatable bzImage Support (V2) Vivek Goyal
2006-11-13 16:26 ` [RFC] [PATCH 1/16] x86_64: Align data segment to page size boundary Vivek Goyal
2006-11-13 16:28 ` [RFC] [PATCH 2/16] x86_64: Assembly safe page.h and pgtable.h Vivek Goyal
2006-11-13 17:17 ` Andi Kleen
2006-11-13 19:27 ` Eric W. Biederman
2006-11-13 21:16 ` Vivek Goyal
2006-11-14 1:46 ` Andi Kleen
2006-11-14 2:41 ` Eric W. Biederman
2006-11-13 16:30 ` [RFC] [PATCH 3/16] x86_64: Kill temp_boot_pmds Vivek Goyal
2006-11-13 16:31 ` [RFC] [PATCH 4/16] x86_64: Clean up the early boot page table Vivek Goyal
2006-11-13 16:33 ` [RFC] [PATCH 5/16] x86_64: Fix earlyprintk to use standard ISA mapping Vivek Goyal
2006-11-13 16:34 ` [RFC] [PATCH 6/16] x86_64: Modify copy_bootdata to to use virtual address Vivek Goyal
2006-11-13 16:35 ` [RFC] [PATCH 7/16] x86_64: cleanup segments Vivek Goyal
2006-11-13 16:40 ` [RFC] [PATCH 8/16] x86_64: Add EFER to the set registers saved by save_processor_state Vivek Goyal
2006-11-13 16:42 ` [RFC] [PATCH 9/16] x86_64: 64bit PIC SMP trampoline Vivek Goyal
2006-11-13 17:28 ` Andi Kleen
2006-11-13 16:43 ` [RFC] [PATCH 10/16] x86_64: 64bit PIC ACPI wakeup Vivek Goyal
2006-11-13 17:22 ` Andi Kleen
2006-11-13 17:59 ` Vivek Goyal
2006-11-13 18:13 ` Andi Kleen
2006-11-13 19:21 ` Eric W. Biederman
2006-11-13 19:34 ` Vivek Goyal
2006-11-13 19:57 ` Eric W. Biederman
2006-11-13 23:01 ` Pavel Machek
2006-11-13 23:09 ` Vivek Goyal
2006-11-15 21:07 ` [PATCH] x86_64: Move cpu long mode verification code to common file (was Re: [RFC] [PATCH 10/16] x86_64: 64bit PIC ACPI wakeup) Vivek Goyal
2006-11-15 22:54 ` Pavel Machek
2006-11-16 20:06 ` Vivek Goyal
2006-11-14 16:30 ` [RFC] [PATCH 10/16] x86_64: 64bit PIC ACPI wakeup Pavel Machek
2006-11-14 21:36 ` Eric W. Biederman
2006-11-14 21:40 ` H. Peter Anvin [this message]
2006-11-14 23:43 ` Pavel Machek
2006-11-15 3:49 ` Andi Kleen
2006-11-15 17:26 ` Eric W. Biederman
2006-11-15 18:29 ` Vivek Goyal
2006-11-15 18:38 ` Pavel Machek
2006-11-14 23:17 ` Vivek Goyal
2006-11-14 23:39 ` Pavel Machek
2006-11-15 21:24 ` [Fastboot] " Vivek Goyal
2006-11-15 23:03 ` Pavel Machek
2006-11-16 0:28 ` Vivek Goyal
2006-11-16 20:09 ` Vivek Goyal
2006-11-16 20:53 ` Pavel Machek
2006-11-16 21:29 ` Vivek Goyal
2006-11-16 21:51 ` Pavel Machek
2006-11-13 16:44 ` [RFC] [PATCH 11/16] x86_64: Modify discover_ebda to use virtual address Vivek Goyal
2006-11-13 16:46 ` [RFC] [PATCH 12/16] x86_64: Remove the identity mapping as early as possible Vivek Goyal
2006-11-13 16:47 ` [RFC] [PATCH 13/16] x86_64: __pa and __pa_symbol address space separation Vivek Goyal
2006-11-13 16:48 ` [RFC] [PATCH 14/16] x86_64: Remove CONFIG_PHYSICAL_START Vivek Goyal
2006-11-13 16:50 ` [RFC] [PATCH 15/16] x86_64: Relocatable kernel support Vivek Goyal
2006-11-13 16:51 ` [RFC] [PATCH 16/16] x86_64: Extend bzImage protocol for relocatable bzImage Vivek Goyal
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