x86-64: non-paravirt systems always has PSE and PGE (5f241e65) · Commits · 戴 / test

A paravirtualized system may not have PSE or PGE available to guests, so they are not required features. However, without paravirt we can assume that any x86-64 implementation will have them available. Signed-off-by:

Jeremy Fitzhardinge <jeremy.fitzhardinge@citrix.com>

arch/x86/include/asm/required-features.h

+7 −1

Original line number	Diff line number	Diff line
		@@ -48,9 +48,15 @@
		#endif

		#ifdef CONFIG_X86_64
		#ifdef CONFIG_PARAVIRT
		/* Paravirtualized systems may not have PSE or PGE available */
		#define NEED_PSE 0
		#define NEED_MSR (1<<(X86_FEATURE_MSR & 31))
		#define NEED_PGE 0
		#else
		#define NEED_PSE (1<<(X86_FEATURE_PSE) & 31)
		#define NEED_PGE (1<<(X86_FEATURE_PGE) & 31)
		#endif
		#define NEED_MSR (1<<(X86_FEATURE_MSR & 31))
		#define NEED_FXSR (1<<(X86_FEATURE_FXSR & 31))
		#define NEED_XMM (1<<(X86_FEATURE_XMM & 31))
		#define NEED_XMM2 (1<<(X86_FEATURE_XMM2 & 31))

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