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Open Source and information security mailing list archives
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Date: Tue, 14 Nov 2006 13:40:06 -0800 From: "H. Peter Anvin" <hpa@...or.com> To: "Eric W. Biederman" <ebiederm@...ssion.com> CC: Pavel Machek <pavel@...e.cz>, Vivek Goyal <vgoyal@...ibm.com>, linux kernel mailing list <linux-kernel@...r.kernel.org>, Reloc Kernel List <fastboot@...ts.osdl.org>, akpm@...l.org, ak@...e.de, magnus.damm@...il.com, lwang@...hat.com, dzickus@...hat.com Subject: Re: [RFC] [PATCH 10/16] x86_64: 64bit PIC ACPI wakeup 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 - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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