From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from eggs.gnu.org ([2001:4830:134:3::10]:50371) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1fcoTB-00032g-Ux for qemu-devel@nongnu.org; Tue, 10 Jul 2018 04:58:06 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1fcoT8-0003ty-RT for qemu-devel@nongnu.org; Tue, 10 Jul 2018 04:58:02 -0400 Received: from mga09.intel.com ([134.134.136.24]:44704) by eggs.gnu.org with esmtps (TLS1.0:DHE_RSA_AES_256_CBC_SHA1:32) (Exim 4.71) (envelope-from ) id 1fcoT8-0003tC-IO for qemu-devel@nongnu.org; Tue, 10 Jul 2018 04:57:58 -0400 From: Jingqi Liu Date: Tue, 10 Jul 2018 16:57:31 +0800 Message-Id: <1531213054-63327-1-git-send-email-jingqi.liu@intel.com> Subject: [Qemu-devel] [PATCH 0/3] x86/cpu: Enable a few new cpu features List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , To: pbonzini@redhat.com, rth@twiddle.net, ehabkost@redhat.com Cc: qemu-devel@nongnu.org, wei.w.wang@intel.com, Jingqi Liu Enable a few new cpu features including UMONITOR, UMWAIT, TPAUSE, MOVDIRI and MOVDIR64B. UMONITOR, UMWAIT, and TPAUSE are a set of user wait instructions. MOVDIRI moves doubleword or quadword from register to memory through direct store. MOVDIR64B moves 64-bytes as direct-store with 64-bytes write atomicity. The bits definition: CPUID.(EAX=7,ECX=0):ECX[bit 05] WAITPKG CPUID.(EAX=7,ECX=0):ECX[bit 27] MOVDIRI CPUID.(EAX=7,ECX=0):ECX[bit 28] MOVDIR64B The release document ref below link: https://software.intel.com/sites/default/files/managed/c5/15/\ architecture-instruction-set-extensions-programming-reference.pdf Jingqi Liu (3): x86/cpu: Enable UMONITOR/UMWAIT/TPAUSE cpu features x86/cpu: Enable MOVDIRI cpu feature x86/cpu: Enable MOVDIR64B cpu feature target/i386/cpu.c | 6 +++--- target/i386/cpu.h | 3 +++ 2 files changed, 6 insertions(+), 3 deletions(-) -- 1.8.3.1