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From: Eduardo Habkost <ehabkost@redhat.com>
To: Babu Moger <babu.moger@amd.com>
Cc: pbonzini@redhat.com, imammedo@redhat.com, mst@redhat.com,
	qemu-devel@nongnu.org, rth@twiddle.net
Subject: Re: [PATCH v6 10/10] i386: Simplify CPUID_8000_001E for AMD
Date: Fri, 18 Sep 2020 17:38:02 -0400	[thread overview]
Message-ID: <20200918213802.GA57321@habkost.net> (raw)
In-Reply-To: <159889938728.21294.12746724309255308236.stgit@naples-babu.amd.com>

On Mon, Aug 31, 2020 at 01:43:07PM -0500, Babu Moger wrote:
> apic_id contains all the information required to build
> CPUID_8000_001E. core_id and node_id is already part of
> apic_id generated by x86_topo_ids_from_apicid.
> 
> Also remove the restriction on number bits on core_id and
> node_id.
> 
> Remove all the hardcoded values and replace with generalized
> fields.
> 
> Refer the Processor Programming Reference (PPR) documentation
> available from the bugzilla Link below.
> 
> Link: https://bugzilla.kernel.org/show_bug.cgi?id=206537
> Signed-off-by: Babu Moger <babu.moger@amd.com>
> ---
[...]
> @@ -6019,7 +5914,7 @@ void cpu_x86_cpuid(CPUX86State *env, uint32_t index, uint32_t count,
>          break;
>      case 0x8000001E:
>          assert(cpu->core_id <= 255);

I assume we still want to remove this assert()?  Do you plan to
redo and resubmit
  Subject: [PATCH] target/i386: Remove core_id assert check in CPUID 0x8000001E
  https://lore.kernel.org/qemu-devel/159257395689.52908.4409314503988289481.stgit@naples-babu.amd.com
?

> -        encode_topo_cpuid8000001e(cs, cpu,
> +        encode_topo_cpuid8000001e(cpu, &topo_info,
>                                    eax, ebx, ecx, edx);
>          break;
>      case 0xC0000000:
> 
> 

-- 
Eduardo



  parent reply	other threads:[~2020-09-18 21:38 UTC|newest]

Thread overview: 25+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-08-31 18:42 [PATCH v6 00/10] Remove EPYC mode apicid decode and use generic decode Babu Moger
2020-08-31 18:42 ` [PATCH v6 01/10] Revert "i386: Fix pkg_id offset for EPYC cpu models" Babu Moger
2020-09-01 12:11   ` Igor Mammedov
2020-08-31 18:42 ` [PATCH v6 02/10] Revert "target/i386: Enable new apic id encoding for EPYC based cpus models" Babu Moger
2020-09-01 12:12   ` Igor Mammedov
2020-08-31 18:42 ` [PATCH v6 03/10] Revert "hw/i386: Move arch_id decode inside x86_cpus_init" Babu Moger
2020-09-01 12:13   ` Igor Mammedov
2020-08-31 18:42 ` [PATCH v6 04/10] Revert "i386: Introduce use_epyc_apic_id_encoding in X86CPUDefinition" Babu Moger
2020-09-01 12:14   ` Igor Mammedov
2020-08-31 18:42 ` [PATCH v6 05/10] Revert "hw/i386: Introduce apicid functions inside X86MachineState" Babu Moger
2020-09-01 12:15   ` Igor Mammedov
2020-08-31 18:42 ` [PATCH v6 06/10] Revert "target/i386: Cleanup and use the EPYC mode topology functions" Babu Moger
2020-09-01 12:15   ` Igor Mammedov
2020-08-31 18:42 ` [PATCH v6 07/10] Revert "hw/386: Add EPYC mode topology decoding functions" Babu Moger
2020-09-01 12:15   ` Igor Mammedov
2020-08-31 18:42 ` [PATCH v6 08/10] Revert "hw/i386: Update structures to save the number of nodes per package" Babu Moger
2020-09-01 12:21   ` Igor Mammedov
2020-08-31 18:43 ` [PATCH v6 09/10] i386: Simplify CPUID_8000_001E for AMD Babu Moger
2020-09-01 11:52   ` Igor Mammedov
2020-09-01 14:45     ` Babu Moger
2020-08-31 18:43 ` [PATCH v6 10/10] " Babu Moger
2020-09-01 11:58   ` Igor Mammedov
2020-09-18 21:38   ` Eduardo Habkost [this message]
2020-09-18 21:41     ` Babu Moger
2020-09-01 13:33 ` [PATCH v6 00/10] Remove EPYC mode apicid decode and use generic decode Eduardo Habkost

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