Date: Sun, 23 Aug 2020 20:08:05 +0000 (UTC) From: Konstantin Belousov <kib@FreeBSD.org> To: src-committers@freebsd.org, svn-src-all@freebsd.org, svn-src-head@freebsd.org Subject: svn commit: r364522 - head/sys/x86/include Message-ID: <202008232008.07NK859v009440@repo.freebsd.org>
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Author: kib Date: Sun Aug 23 20:08:05 2020 New Revision: 364522 URL: https://svnweb.freebsd.org/changeset/base/364522 Log: Add definition for CR4.LA57 bit. Tested by: pho Sponsored by: The FreeBSD Foundation Differential revision: https://reviews.freebsd.org/D25273 Modified: head/sys/x86/include/specialreg.h Modified: head/sys/x86/include/specialreg.h ============================================================================== --- head/sys/x86/include/specialreg.h Sun Aug 23 20:06:55 2020 (r364521) +++ head/sys/x86/include/specialreg.h Sun Aug 23 20:08:05 2020 (r364522) @@ -72,6 +72,7 @@ #define CR4_FXSR 0x00000200 /* Fast FPU save/restore used by OS */ #define CR4_XMM 0x00000400 /* enable SIMD/MMX2 to use except 16 */ #define CR4_UMIP 0x00000800 /* User Mode Instruction Prevention */ +#define CR4_LA57 0x00001000 /* Enable 5-level paging */ #define CR4_VMXE 0x00002000 /* enable VMX operation (Intel-specific) */ #define CR4_FSGSBASE 0x00010000 /* Enable FS/GS BASE accessing instructions */ #define CR4_PCIDE 0x00020000 /* Enable Context ID */
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