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[PATCH] target/i386: Add ARCH_CAPABILITIES related bits into Icelake-Ser


From: Xiaoyao Li
Subject: [PATCH] target/i386: Add ARCH_CAPABILITIES related bits into Icelake-Server CPU model
Date: Mon, 16 Mar 2020 13:33:14 +0800

Current Icelake-Server CPU model lacks all the features enumerated by
MSR_IA32_ARCH_CAPABILITIES.

Add them, so that guest of "Icelake-Server" can see all of them.

Signed-off-by: Xiaoyao Li <address@hidden>
---
 target/i386/cpu.c | 7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

diff --git a/target/i386/cpu.c b/target/i386/cpu.c
index 92fafa265914..5f09d114e1c2 100644
--- a/target/i386/cpu.c
+++ b/target/i386/cpu.c
@@ -3425,7 +3425,12 @@ static X86CPUDefinition builtin_x86_defs[] = {
             CPUID_7_0_ECX_AVX512VNNI | CPUID_7_0_ECX_AVX512BITALG |
             CPUID_7_0_ECX_AVX512_VPOPCNTDQ | CPUID_7_0_ECX_LA57,
         .features[FEAT_7_0_EDX] =
-            CPUID_7_0_EDX_SPEC_CTRL | CPUID_7_0_EDX_SPEC_CTRL_SSBD,
+            CPUID_7_0_EDX_SPEC_CTRL | CPUID_7_0_EDX_ARCH_CAPABILITIES |
+            CPUID_7_0_EDX_SPEC_CTRL_SSBD,
+        .features[FEAT_ARCH_CAPABILITIES] =
+            MSR_ARCH_CAP_RDCL_NO | MSR_ARCH_CAP_IBRS_ALL |
+            MSR_ARCH_CAP_SKIP_L1DFL_VMENTRY | MSR_ARCH_CAP_MDS_NO |
+            MSR_ARCH_CAP_PSCHANGE_MC_NO | MSR_ARCH_CAP_TAA_NO,
         /* Missing: XSAVES (not supported by some Linux versions,
                 * including v4.1 to v4.12).
                 * KVM doesn't yet expose any XSAVES state save component,
-- 
2.20.1




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