From 1bf465f3e0a786bf3267931461c0c15fe6232bc8 Mon Sep 17 00:00:00 2001
From: Zhao Liu <zhao1.liu@intel.com>
Date: Fri, 11 Jul 2025 18:46:02 +0800
Subject: [PATCH] i386/cpu: Enable 0x1f leaf for SapphireRapids by default

Host SapphireRapids CPU has 0x1f leaf by default, so that enable it for
Guest CPU by default as well.

Suggested-by: Igor Mammedov <imammedo@redhat.com>
Reviewed-by: Dapeng Mi <dapeng1.mi@linux.intel.com>
Tested-by: Yi Lai <yi1.lai@intel.com>
Signed-off-by: Zhao Liu <zhao1.liu@intel.com>
Link: https://lore.kernel.org/r/20250711104603.1634832-9-zhao1.liu@intel.com
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
---
 target/i386/cpu.c | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/target/i386/cpu.c b/target/i386/cpu.c
index a11e9bb111..216e0232df 100644
--- a/target/i386/cpu.c
+++ b/target/i386/cpu.c
@@ -5081,8 +5081,12 @@ static const X86CPUDefinition builtin_x86_defs[] = {
             },
             {
                 .version = 4,
-                .note = "with spr-sp cache model",
+                .note = "with spr-sp cache model and 0x1f leaf",
                 .cache_info = &xeon_spr_cache_info,
+                .props = (PropValue[]) {
+                    { "x-force-cpuid-0x1f", "on" },
+                    { /* end of list */ },
+                }
             },
             { /* end of list */ }
         }
-- 
2.47.2