From 4f30cb0262847392d8d006042f24bd90abd24f9d Mon Sep 17 00:00:00 2001 From: Jeremy Fitzhardinge <jeremy@goop.org> Date: Wed, 25 Jun 2008 00:19:21 -0400 Subject: [PATCH] x86, 64-bit: PSE no longer a hard requirement Because Xen doesn't support PSE mappings in guests, all code which assumed the presence of PSE has been changed to fall back to smaller mappings if necessary. As a result, PSE is optional rather than required (though still used whereever possible). Signed-off-by: Jeremy Fitzhardinge <jeremy.fitzhardinge@citrix.com> Cc: xen-devel <xen-devel@lists.xensource.com> Cc: Stephen Tweedie <sct@redhat.com> Cc: Eduardo Habkost <ehabkost@redhat.com> Cc: Mark McLoughlin <markmc@redhat.com> Signed-off-by: Ingo Molnar <mingo@elte.hu> --- include/asm-x86/required-features.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/include/asm-x86/required-features.h b/include/asm-x86/required-features.h index 8c387198ca888..adec887dd7cd5 100644 --- a/include/asm-x86/required-features.h +++ b/include/asm-x86/required-features.h @@ -42,7 +42,7 @@ #endif #ifdef CONFIG_X86_64 -#define NEED_PSE (1<<(X86_FEATURE_PSE & 31)) +#define NEED_PSE 0 #define NEED_MSR (1<<(X86_FEATURE_MSR & 31)) #define NEED_PGE (1<<(X86_FEATURE_PGE & 31)) #define NEED_FXSR (1<<(X86_FEATURE_FXSR & 31)) -- GitLab