From f956cd4aed74d55ecc03d3c33ea66b1d933cb28f Mon Sep 17 00:00:00 2001 From: Konrad Rzeszutek Wilk Date: Mon, 21 May 2018 22:54:23 +0100 Subject: [PATCH 3/3] i386: define the AMD 'virt-ssbd' CPUID feature bit (CVE-2018-3639) MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit AMD Zen expose the Intel equivalant to Speculative Store Bypass Disable via the 0x80000008_EBX[25] CPUID feature bit. This needs to be exposed to guest OS to allow them to protect against CVE-2018-3639. Signed-off-by: Konrad Rzeszutek Wilk Reviewed-by: Daniel P. Berrangé Signed-off-by: Daniel P. Berrangé Message-Id: <20180521215424.13520-3-berrange@redhat.com> Signed-off-by: Eduardo Habkost (cherry picked from commit 403503b162ffc33fb64cfefdf7b880acf41772cd) --- target/i386/cpu.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/target/i386/cpu.c b/target/i386/cpu.c index 2f5263e22f..2e305ab689 100644 --- a/target/i386/cpu.c +++ b/target/i386/cpu.c @@ -541,7 +541,7 @@ static FeatureWordInfo feature_word_info[FEATURE_WORDS] = { "ibpb", NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, - NULL, NULL, NULL, NULL, + NULL, "virt-ssbd", NULL, NULL, NULL, NULL, NULL, NULL, }, .cpuid_eax = 0x80000008, -- 2.17.0