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authorTao Su <tao1.su@linux.intel.com>2025-01-21 10:06:47 +0800
committerPaolo Bonzini <pbonzini@redhat.com>2025-01-23 11:50:53 +0100
commitc597ff5339a9918b00d9f4160126db0ac2a423cc (patch)
tree4e53628122285f4383d9de769ab9f4cece6167b8
parent22063f03a7626c77d7a4546b90fd27badd504269 (diff)
downloadfocaccia-qemu-c597ff5339a9918b00d9f4160126db0ac2a423cc.tar.gz
focaccia-qemu-c597ff5339a9918b00d9f4160126db0ac2a423cc.zip
target/i386: Introduce SierraForest-v2 model
Update SierraForest CPU model to add LAM, 4 bits indicating certain bits
of IA32_SPEC_CTR are supported(intel-psfd, ipred-ctrl, rrsba-ctrl,
bhi-ctrl) and the missing features(ss, tsc-adjust, cldemote, movdiri,
movdir64b)

Also add GDS-NO and RFDS-NO to indicate the related vulnerabilities are
mitigated in stepping 3.

Tested-by: Xuelian Guo <xuelian.guo@intel.com>
Signed-off-by: Tao Su <tao1.su@linux.intel.com>
Reviewed-by: Zhao Liu <zhao1.liu@intel.com>
Link: https://lore.kernel.org/r/20250121020650.1899618-2-tao1.su@linux.intel.com
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
-rw-r--r--target/i386/cpu.c19
1 files changed, 19 insertions, 0 deletions
diff --git a/target/i386/cpu.c b/target/i386/cpu.c
index 1b9c11022c..6db8d6c9ba 100644
--- a/target/i386/cpu.c
+++ b/target/i386/cpu.c
@@ -4549,6 +4549,25 @@ static const X86CPUDefinition builtin_x86_defs[] = {
         .model_id = "Intel Xeon Processor (SierraForest)",
         .versions = (X86CPUVersionDefinition[]) {
             { .version = 1 },
+            {
+                .version = 2,
+                .props = (PropValue[]) {
+                    { "ss", "on" },
+                    { "tsc-adjust", "on" },
+                    { "cldemote", "on" },
+                    { "movdiri", "on" },
+                    { "movdir64b", "on" },
+                    { "gds-no", "on" },
+                    { "rfds-no", "on" },
+                    { "lam", "on" },
+                    { "intel-psfd", "on"},
+                    { "ipred-ctrl", "on"},
+                    { "rrsba-ctrl", "on"},
+                    { "bhi-ctrl", "on"},
+                    { "stepping", "3" },
+                    { /* end of list */ }
+                }
+            },
             { /* end of list */ },
         },
     },