From owner-svn-src-all@FreeBSD.ORG Mon Jul 15 06:30:58 2013 Return-Path: Delivered-To: svn-src-all@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:1900:2254:206a::19:1]) by hub.freebsd.org (Postfix) with ESMTP id 361607AB; Mon, 15 Jul 2013 06:30:58 +0000 (UTC) (envelope-from kib@FreeBSD.org) Received: from svn.freebsd.org (svn.freebsd.org [IPv6:2001:1900:2254:2068::e6a:0]) by mx1.freebsd.org (Postfix) with ESMTP id 27F86B6E; Mon, 15 Jul 2013 06:30:58 +0000 (UTC) Received: from svn.freebsd.org ([127.0.1.70]) by svn.freebsd.org (8.14.7/8.14.7) with ESMTP id r6F6Uw2m072029; Mon, 15 Jul 2013 06:30:58 GMT (envelope-from kib@svn.freebsd.org) Received: (from kib@localhost) by svn.freebsd.org (8.14.7/8.14.5/Submit) id r6F6Uw2b072028; Mon, 15 Jul 2013 06:30:58 GMT (envelope-from kib@svn.freebsd.org) Message-Id: <201307150630.r6F6Uw2b072028@svn.freebsd.org> From: Konstantin Belousov Date: Mon, 15 Jul 2013 06:30:58 +0000 (UTC) To: src-committers@freebsd.org, svn-src-all@freebsd.org, svn-src-head@freebsd.org Subject: svn commit: r253352 - head/sys/amd64/amd64 X-SVN-Group: head MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit X-BeenThere: svn-src-all@freebsd.org X-Mailman-Version: 2.1.14 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: Mon, 15 Jul 2013 06:30:58 -0000 Author: kib Date: Mon Jul 15 06:30:57 2013 New Revision: 253352 URL: http://svnweb.freebsd.org/changeset/base/253352 Log: MFi386: add ddb "show sysregs" command. Sponsored by: The FreeBSD Foundation MFC after: 1 week Modified: head/sys/amd64/amd64/machdep.c Modified: head/sys/amd64/amd64/machdep.c ============================================================================== --- head/sys/amd64/amd64/machdep.c Mon Jul 15 06:16:57 2013 (r253351) +++ head/sys/amd64/amd64/machdep.c Mon Jul 15 06:30:57 2013 (r253352) @@ -1228,6 +1228,36 @@ DB_SHOW_COMMAND(idt, db_show_idt) ip++; } } + +/* Show privileged registers. */ +DB_SHOW_COMMAND(sysregs, db_show_sysregs) +{ + struct { + uint16_t limit; + uint64_t base; + } __packed idtr, gdtr; + uint16_t ldt, tr; + + __asm __volatile("sidt %0" : "=m" (idtr)); + db_printf("idtr\t0x%016lx/%04x\n", + (u_long)idtr.base, (u_int)idtr.limit); + __asm __volatile("sgdt %0" : "=m" (gdtr)); + db_printf("gdtr\t0x%016lx/%04x\n", + (u_long)gdtr.base, (u_int)gdtr.limit); + __asm __volatile("sldt %0" : "=r" (ldt)); + db_printf("ldtr\t0x%04x\n", ldt); + __asm __volatile("str %0" : "=r" (tr)); + db_printf("tr\t0x%04x\n", tr); + db_printf("cr0\t0x%016lx\n", rcr0()); + db_printf("cr2\t0x%016lx\n", rcr2()); + db_printf("cr3\t0x%016lx\n", rcr3()); + db_printf("cr4\t0x%016lx\n", rcr4()); + db_printf("EFER\t%016lx\n", rdmsr(MSR_EFER)); + db_printf("FEATURES_CTL\t%016lx\n", rdmsr(MSR_IA32_FEATURE_CONTROL)); + db_printf("DEBUG_CTL\t%016lx\n", rdmsr(MSR_DEBUGCTLMSR)); + db_printf("PAT\t%016lx\n", rdmsr(MSR_PAT)); + db_printf("GSBASE\t%016lx\n", rdmsr(MSR_GSBASE)); +} #endif void