Date: Mon, 1 Jan 2018 19:34:19 +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: r327469 - head/sys/x86/include Message-ID: <201801011934.w01JYJG9009791@repo.freebsd.org>
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Author: kib Date: Mon Jan 1 19:34:19 2018 New Revision: 327469 URL: https://svnweb.freebsd.org/changeset/base/327469 Log: Add CR4.SMAP control bit. Sponsored by: The FreeBSD Foundation MFC after: 3 days Modified: head/sys/x86/include/specialreg.h Modified: head/sys/x86/include/specialreg.h ============================================================================== --- head/sys/x86/include/specialreg.h Mon Jan 1 19:27:33 2018 (r327468) +++ head/sys/x86/include/specialreg.h Mon Jan 1 19:34:19 2018 (r327469) @@ -76,6 +76,7 @@ #define CR4_PCIDE 0x00020000 /* Enable Context ID */ #define CR4_XSAVE 0x00040000 /* XSETBV/XGETBV */ #define CR4_SMEP 0x00100000 /* Supervisor-Mode Execution Prevention */ +#define CR4_SMAP 0x00200000 /* Supervisor-Mode Access Prevention */ /* * Bits in AMD64 special registers. EFER is 64 bits wide.
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