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From: Zhao Liu <zhao1.liu@intel.com>
To: "Paolo Bonzini" <pbonzini@redhat.com>,
	"Daniel P . Berrangé" <berrange@redhat.com>,
	"Igor Mammedov" <imammedo@redhat.com>,
	"Eduardo Habkost" <eduardo@habkost.net>
Cc: Ewan Hai <ewanhai-oc@zhaoxin.com>,
	Jason Zeng <jason.zeng@intel.com>,
	Xiaoyao Li <xiaoyao.li@intel.com>, Tao Su <tao1.su@intel.com>,
	Yi Lai <yi1.lai@intel.com>, Dapeng Mi <dapeng1.mi@intel.com>,
	Tejus GK <tejus.gk@nutanix.com>,
	Manish Mishra <manish.mishra@nutanix.com>,
	qemu-devel@nongnu.org, Zhao Liu <zhao1.liu@intel.com>
Subject: [PATCH 8/8] i386/cpu: Enable 0x1f leaf for SapphireRapids by default
Date: Thu, 26 Jun 2025 16:31:05 +0800	[thread overview]
Message-ID: <20250626083105.2581859-9-zhao1.liu@intel.com> (raw)
In-Reply-To: <20250626083105.2581859-1-zhao1.liu@intel.com>

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>
Signed-off-by: Zhao Liu <zhao1.liu@intel.com>
---
Changes since RFC:
 * Rename the property to "x-force-cpuid-0x1f". (Igor)
---
 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 acf7e0de184d..c7f157a0f71c 100644
--- a/target/i386/cpu.c
+++ b/target/i386/cpu.c
@@ -5084,8 +5084,11 @@ 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 */ }
         }
-- 
2.34.1



  parent reply	other threads:[~2025-06-26  8:11 UTC|newest]

Thread overview: 26+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2025-06-26  8:30 [PATCH 0/8] i386/cpu: Intel cache model & topo CPUID enhencement Zhao Liu
2025-06-26  8:30 ` [PATCH 1/8] i386/cpu: Introduce cache model for SierraForest Zhao Liu
2025-07-04  3:33   ` Mi, Dapeng
2025-07-07  0:57   ` Tao Su
2025-06-26  8:30 ` [PATCH 2/8] i386/cpu: Introduce cache model for GraniteRapids Zhao Liu
2025-07-04  3:34   ` Mi, Dapeng
2025-07-07  0:58   ` Tao Su
2025-06-26  8:31 ` [PATCH 3/8] i386/cpu: Introduce cache model for SapphireRapids Zhao Liu
2025-07-04  3:35   ` Mi, Dapeng
2025-07-07  0:58   ` Tao Su
2025-06-26  8:31 ` [PATCH 4/8] i386/cpu: Introduce cache model for YongFeng Zhao Liu
2025-06-29  9:47   ` Ewan Hai
2025-07-02  6:35     ` Zhao Liu
2025-07-02  9:35       ` Ewan Hai
2025-06-26  8:31 ` [PATCH 5/8] i386/cpu: Add a "x-force-cpuid-0x1f" property Zhao Liu
2025-06-26 12:07   ` Ewan Hai
2025-06-27  3:05     ` Zhao Liu
2025-06-27  6:48       ` Ewan Hai
2025-06-27 10:00         ` Zhao Liu
2025-07-04  3:38   ` Mi, Dapeng
2025-06-26  8:31 ` [PATCH 6/8] i386/cpu: Enable 0x1f leaf for SierraForest by default Zhao Liu
2025-07-04  3:45   ` Mi, Dapeng
2025-06-26  8:31 ` [PATCH 7/8] i386/cpu: Enable 0x1f leaf for GraniteRapids " Zhao Liu
2025-07-04  3:47   ` Mi, Dapeng
2025-06-26  8:31 ` Zhao Liu [this message]
2025-07-04  3:48   ` [PATCH 8/8] i386/cpu: Enable 0x1f leaf for SapphireRapids " Mi, Dapeng

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