From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from eggs.gnu.org ([209.51.188.92]:37832) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1gmJHa-0007g7-Fw for qemu-devel@nongnu.org; Wed, 23 Jan 2019 09:13:35 -0500 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1gmJHZ-0006i5-Ky for qemu-devel@nongnu.org; Wed, 23 Jan 2019 09:13:34 -0500 Received: from mga12.intel.com ([192.55.52.136]:53079) by eggs.gnu.org with esmtps (TLS1.0:DHE_RSA_AES_256_CBC_SHA1:32) (Exim 4.71) (envelope-from ) id 1gmJHU-0006YX-Im for qemu-devel@nongnu.org; Wed, 23 Jan 2019 09:13:30 -0500 From: Yang Weijiang Date: Wed, 23 Jan 2019 05:06:44 +0800 Message-Id: <20190122210648.26320-1-weijiang.yang@intel.com> Subject: [Qemu-devel] [PATCH v2 0/4] This patch-set is to enable Guest List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , To: pbonzini@redhat.com, cdupontd@redhat.com, rkrcmar@redhat.com, qemu-devel@nongnu.org, mst@redhat.com, yu-cheng.yu@intel.com, yi.z.zhang@intel.com, hjl.tools@gmail.com Cc: weijiang.yang@intel.com Control-flow Enforcement Technology (CET) provides protection against return/jump-oriented programming (ROP) attacks. To make kvm Guest OS own the capability, this patch-set is required. It enables CET related CPUID report and xsaves/xrstors support etc in qemu. Changelog: v2: - In CPUID.(EAX=d, ECX=1), set return ECX[n] = 0 if bit n corresponds to a bit in MSR_IA32_XSS. - In CPUID.(EAX=d, ECX=n), set return ECX = 1 if bit n corresponds to a bit in MSR_IA32_XSS. - Skip Supervisor mode xsave component when calculate User mode xave component size in xsave_area_size() and x86_cpu_reset(). Yang Weijiang (4): Add CET xsaves/xrstors related macros and structures. Add CET SHSTK and IBT CPUID feature-word definitions. Add hepler functions for CPUID xsave area size calculation. Report CPUID xsave area support for CET. target/i386/cpu.c | 73 +++++++++++++++++++++++++++++++++++++++++++++-- target/i386/cpu.h | 36 ++++++++++++++++++++++- 2 files changed, 105 insertions(+), 4 deletions(-) -- 2.17.1