From owner-svn-src-all@freebsd.org Tue Feb 19 19:17:21 2019 Return-Path: Delivered-To: svn-src-all@mailman.ysv.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2610:1c1:1:606c::19:1]) by mailman.ysv.freebsd.org (Postfix) with ESMTP id AE44914FA0FD; Tue, 19 Feb 2019 19:17:21 +0000 (UTC) (envelope-from kib@FreeBSD.org) Received: from mxrelay.nyi.freebsd.org (mxrelay.nyi.freebsd.org [IPv6:2610:1c1:1:606c::19:3]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) server-signature RSA-PSS (4096 bits) client-signature RSA-PSS (4096 bits) client-digest SHA256) (Client CN "mxrelay.nyi.freebsd.org", Issuer "Let's Encrypt Authority X3" (verified OK)) by mx1.freebsd.org (Postfix) with ESMTPS id 531706E596; Tue, 19 Feb 2019 19:17:21 +0000 (UTC) (envelope-from kib@FreeBSD.org) Received: from repo.freebsd.org (repo.freebsd.org [IPv6:2610:1c1:1:6068::e6a:0]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (Client did not present a certificate) by mxrelay.nyi.freebsd.org (Postfix) with ESMTPS id 0FC622225D; Tue, 19 Feb 2019 19:17:21 +0000 (UTC) (envelope-from kib@FreeBSD.org) Received: from repo.freebsd.org ([127.0.1.37]) by repo.freebsd.org (8.15.2/8.15.2) with ESMTP id x1JJHKQ4042579; Tue, 19 Feb 2019 19:17:20 GMT (envelope-from kib@FreeBSD.org) Received: (from kib@localhost) by repo.freebsd.org (8.15.2/8.15.2/Submit) id x1JJHK4m042577; Tue, 19 Feb 2019 19:17:20 GMT (envelope-from kib@FreeBSD.org) Message-Id: <201902191917.x1JJHK4m042577@repo.freebsd.org> X-Authentication-Warning: repo.freebsd.org: kib set sender to kib@FreeBSD.org using -f From: Konstantin Belousov Date: Tue, 19 Feb 2019 19:17:20 +0000 (UTC) To: src-committers@freebsd.org, svn-src-all@freebsd.org, svn-src-head@freebsd.org Subject: svn commit: r344296 - in head/sys: amd64/include i386/include X-SVN-Group: head X-SVN-Commit-Author: kib X-SVN-Commit-Paths: in head/sys: amd64/include i386/include X-SVN-Commit-Revision: 344296 X-SVN-Commit-Repository: base MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit X-Rspamd-Queue-Id: 531706E596 X-Spamd-Bar: -- Authentication-Results: mx1.freebsd.org X-Spamd-Result: default: False [-2.96 / 15.00]; local_wl_from(0.00)[FreeBSD.org]; NEURAL_HAM_MEDIUM(-1.00)[-0.999,0]; NEURAL_HAM_SHORT(-0.96)[-0.960,0]; NEURAL_HAM_LONG(-1.00)[-0.999,0]; ASN(0.00)[asn:11403, ipnet:2610:1c1:1::/48, country:US] X-BeenThere: svn-src-all@freebsd.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: "SVN commit messages for the entire src tree \(except for " user" and " projects" \)" List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Tue, 19 Feb 2019 19:17:21 -0000 Author: kib Date: Tue Feb 19 19:17:20 2019 New Revision: 344296 URL: https://svnweb.freebsd.org/changeset/base/344296 Log: Provide convenience C wrappers for RDPKRU and WRPKRU instructions. Reviewed by: markj Tested by: pho Sponsored by: The FreeBSD Foundation MFC after: 3 days Differential revision: https://reviews.freebsd.org/D18893 Modified: head/sys/amd64/include/cpufunc.h head/sys/i386/include/cpufunc.h Modified: head/sys/amd64/include/cpufunc.h ============================================================================== --- head/sys/amd64/include/cpufunc.h Tue Feb 19 19:16:28 2019 (r344295) +++ head/sys/amd64/include/cpufunc.h Tue Feb 19 19:17:20 2019 (r344296) @@ -627,6 +627,22 @@ cpu_mwait(u_long extensions, u_int hints) __asm __volatile("mwait" : : "a" (hints), "c" (extensions)); } +static __inline uint32_t +rdpkru(void) +{ + uint32_t res; + + __asm __volatile("rdpkru" : "=a" (res) : "c" (0) : "edx"); + return (res); +} + +static __inline void +wrpkru(uint32_t mask) +{ + + __asm __volatile("wrpkru" : : "a" (mask), "c" (0), "d" (0)); +} + #ifdef _KERNEL /* This is defined in but is too painful to get to */ #ifndef MSR_FSBASE Modified: head/sys/i386/include/cpufunc.h ============================================================================== --- head/sys/i386/include/cpufunc.h Tue Feb 19 19:16:28 2019 (r344295) +++ head/sys/i386/include/cpufunc.h Tue Feb 19 19:17:20 2019 (r344296) @@ -726,6 +726,22 @@ intr_restore(register_t eflags) write_eflags(eflags); } +static __inline uint32_t +rdpkru(void) +{ + uint32_t res; + + __asm __volatile("rdpkru" : "=a" (res) : "c" (0) : "edx"); + return (res); +} + +static __inline void +wrpkru(uint32_t mask) +{ + + __asm __volatile("wrpkru" : : "a" (mask), "c" (0), "d" (0)); +} + #else /* !(__GNUCLIKE_ASM && __CC_SUPPORTS___INLINE) */ int breakpoint(void);