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From: Zhao Liu <zhao1.liu@intel.com>
To: "Mi, Dapeng" <dapeng1.mi@linux.intel.com>
Cc: "Paolo Bonzini" <pbonzini@redhat.com>,
	"Marcelo Tosatti" <mtosatti@redhat.com>,
	"Michael S . Tsirkin" <mst@redhat.com>,
	"Daniel P . Berrangé" <berrange@redhat.com>,
	"Igor Mammedov" <imammedo@redhat.com>,
	"Marcel Apfelbaum" <marcel.apfelbaum@gmail.com>,
	"Richard Henderson" <richard.henderson@linaro.org>,
	"Eduardo Habkost" <eduardo@habkost.net>,
	"Philippe Mathieu-Daudé" <philmd@linaro.org>,
	"Babu Moger" <babu.moger@amd.com>,
	"Ewan Hai" <ewanhai-oc@zhaoxin.com>, "Pu Wen" <puwen@hygon.cn>,
	"Tao Su" <tao1.su@intel.com>, "Yi Lai" <yi1.lai@intel.com>,
	"Dapeng Mi" <dapeng1.mi@intel.com>,
	qemu-devel@nongnu.org, kvm@vger.kernel.org
Subject: Re: [PATCH 02/16] i386/cpu: Add descriptor 0x49 for CPUID 0x2 encoding
Date: Thu, 3 Jul 2025 15:39:22 +0800	[thread overview]
Message-ID: <aGYzqrKldFwlbPoZ@intel.com> (raw)
In-Reply-To: <0b2a6fbe-6232-4e6a-8423-ab09f6d312b7@linux.intel.com>

> > -    /* Descriptor 0x49 depends on CPU family/model, so it is not included */
> > +    /*
> > +     * Descriptor 0x49 has 2 cases:
> > +     *  - 2nd-level cache: 4 MByte, 16-way set associative, 64 byte line size.
> > +     *  - 3rd-level cache: 4MB, 16-way set associative, 64-byte line size
> > +     *    (Intel Xeon processor MP, Family 0FH, Model 06H).
> > +     *
> > +     * When it represents l3, then it depends on CPU family/model. Fortunately,
> > +     * the legacy cache/CPU models don't have such special l3. So, just add it
> > +     * to represent the general l2 case.
> 
> For comments and commit message, we'd better use the capital character
> "L2/L3" to represent the 2nd/3rd level cache which is more conventional. 

Sure.

> Others look good to me.
> 
> Reviewed-by: Dapeng Mi <dapeng1.mi@linux.intel.com>

Thanks!


  reply	other threads:[~2025-07-03  7:18 UTC|newest]

Thread overview: 39+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2025-06-20  9:27 [PATCH 00/16] i386/cpu: Unify the cache model in X86CPUState Zhao Liu
2025-06-20  9:27 ` [PATCH 01/16] i386/cpu: Refine comment of CPUID2CacheDescriptorInfo Zhao Liu
2025-07-02  8:48   ` Mi, Dapeng
2025-07-03  7:38     ` Zhao Liu
2025-06-20  9:27 ` [PATCH 02/16] i386/cpu: Add descriptor 0x49 for CPUID 0x2 encoding Zhao Liu
2025-07-02  9:04   ` Mi, Dapeng
2025-07-03  7:39     ` Zhao Liu [this message]
2025-06-20  9:27 ` [PATCH 03/16] i386/cpu: Add default cache model for Intel CPUs with level < 4 Zhao Liu
2025-07-02  9:53   ` Mi, Dapeng
2025-07-03  7:47     ` Zhao Liu
2025-06-20  9:27 ` [PATCH 04/16] i386/cpu: Present same cache model in CPUID 0x2 & 0x4 Zhao Liu
2025-07-03  4:14   ` Mi, Dapeng
2025-07-03  6:35     ` Mi, Dapeng
2025-06-20  9:27 ` [PATCH 05/16] i386/cpu: Consolidate CPUID 0x4 leaf Zhao Liu
2025-06-26 12:10   ` Ewan Hai
2025-06-27  2:44     ` Zhao Liu
2025-07-03  6:41   ` Mi, Dapeng
2025-06-20  9:27 ` [PATCH 06/16] i386/cpu: Drop CPUID 0x2 specific cache info in X86CPUState Zhao Liu
2025-07-03  7:03   ` Mi, Dapeng
2025-06-20  9:27 ` [PATCH 07/16] i386/cpu: Mark CPUID[0x80000005] as reserved for Intel Zhao Liu
2025-07-03  7:07   ` Mi, Dapeng
2025-06-20  9:27 ` [PATCH 08/16] i386/cpu: Fix CPUID[0x80000006] for Intel CPU Zhao Liu
2025-07-03  7:09   ` Mi, Dapeng
2025-07-03  7:52     ` Zhao Liu
2025-06-20  9:27 ` [PATCH 09/16] i386/cpu: Add legacy_intel_cache_info cache model Zhao Liu
2025-07-03  7:15   ` Mi, Dapeng
2025-06-20  9:27 ` [PATCH 10/16] i386/cpu: Add legacy_amd_cache_info " Zhao Liu
2025-07-03  7:18   ` Mi, Dapeng
2025-06-20  9:27 ` [PATCH 11/16] i386/cpu: Select legacy cache model based on vendor in CPUID 0x2 Zhao Liu
2025-07-03  8:47   ` Mi, Dapeng
2025-06-20  9:27 ` [PATCH 12/16] i386/cpu: Select legacy cache model based on vendor in CPUID 0x4 Zhao Liu
2025-07-03  8:49   ` Mi, Dapeng
2025-06-20  9:27 ` [PATCH 13/16] i386/cpu: Select legacy cache model based on vendor in CPUID 0x80000005 Zhao Liu
2025-07-03  8:52   ` Mi, Dapeng
2025-06-20  9:27 ` [PATCH 14/16] i386/cpu: Select legacy cache model based on vendor in CPUID 0x80000006 Zhao Liu
2025-06-20  9:27 ` [PATCH 15/16] i386/cpu: Select legacy cache model based on vendor in CPUID 0x8000001D Zhao Liu
2025-06-20  9:27 ` [PATCH 16/16] i386/cpu: Use a unified cache_info in X86CPUState Zhao Liu
2025-07-03  8:53   ` Mi, Dapeng
2025-07-03  9:50     ` Zhao Liu

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