From e468c5e44435f5cbe1dd61099e6991a66c25988f Mon Sep 17 00:00:00 2001 From: Zhao Liu Date: Fri, 11 Jul 2025 18:46:00 +0800 Subject: [PATCH] i386/cpu: Enable 0x1f leaf for SierraForest by default Host SierraForest CPU has 0x1f leaf by default, so that enable it for Guest CPU by default as well. Suggested-by: Igor Mammedov Reviewed-by: Dapeng Mi Tested-by: Yi Lai Signed-off-by: Zhao Liu Link: https://lore.kernel.org/r/20250711104603.1634832-7-zhao1.liu@intel.com Signed-off-by: Paolo Bonzini --- target/i386/cpu.c | 5 ++++- 1 file changed, 4 insertions(+), 1 deletion(-) diff --git a/target/i386/cpu.c b/target/i386/cpu.c index 482979a443..668f3e63b7 100644 --- a/target/i386/cpu.c +++ b/target/i386/cpu.c @@ -5389,8 +5389,11 @@ static const X86CPUDefinition builtin_x86_defs[] = { }, { .version = 3, - .note = "with srf-sp cache model", + .note = "with srf-sp cache model and 0x1f leaf", .cache_info = &xeon_srf_cache_info, + .props = (PropValue[]) { + { "x-force-cpuid-0x1f", "on" }, + } }, { /* end of list */ }, }, -- 2.47.2