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xen-devel
[Xen-devel] [PATCH 25 of 36] x86_64: 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@xxxxxxxxxx>
---
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
--- 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))
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- [Xen-devel] [PATCH 31 of 36] x86_64 pvops: don't restore user rsp within sysret, (continued)
- [Xen-devel] [PATCH 31 of 36] x86_64 pvops: don't restore user rsp within sysret, Jeremy Fitzhardinge
- [Xen-devel] [PATCH 33 of 36] x86_64: ia32entry: replace privileged instructions with pvops, Jeremy Fitzhardinge
- [Xen-devel] [PATCH 32 of 36] Add sysret/sysexit pvops for returning to 32-bit compatibility userspace, Jeremy Fitzhardinge
- [Xen-devel] [PATCH 30 of 36] x86/paravirt_ops: split sysret and sysexit, Jeremy Fitzhardinge
- [Xen-devel] [PATCH 34 of 36] x86_64: swapgs pvop with a user-stack can never be called, Jeremy Fitzhardinge
- [Xen-devel] [PATCH 24 of 36] x86_64: create small vmemmap mappings if PSE not available, Jeremy Fitzhardinge
- [Xen-devel] [PATCH 26 of 36] x86_64: Split set_pte_vaddr(), Jeremy Fitzhardinge
- [Xen-devel] [PATCH 36 of 36] x86_64/paravirt: Make load_gs_index() a paravirt operation, Jeremy Fitzhardinge
- [Xen-devel] [PATCH 25 of 36] x86_64: PSE no longer a hard requirement,
Jeremy Fitzhardinge <=
- [Xen-devel] [PATCH 35 of 36] x86_64/paravirt: add adjust_exception_frame, Jeremy Fitzhardinge
- [Xen-devel] Re: [PATCH 00 of 36] x86/paravirt: groundwork for 64-bit Xen support, Ingo Molnar
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