From: Eduardo Habkost <ehabkost@redhat.com>
To: Babu Moger <babu.moger@amd.com>
Cc: geoff@hostfission.com, kvm@vger.kernel.org, mst@redhat.com,
kash@tripleback.net, mtosatti@redhat.com, qemu-devel@nongnu.org,
pbonzini@redhat.com, rth@twiddle.net
Subject: Re: [PATCH v12 1/4] i386: Add support for CPUID_8000_001E for AMD
Date: Wed, 6 Jun 2018 18:26:26 -0300 [thread overview]
Message-ID: <20180606212626.GB7451@localhost.localdomain> (raw)
In-Reply-To: <1528295806-90593-2-git-send-email-babu.moger@amd.com>
On Wed, Jun 06, 2018 at 10:36:43AM -0400, Babu Moger wrote:
[...]
> + /*
> + * CPUID_Fn8000001E_EBX
> + * 31:16 Reserved
> + * 15:8 Threads per core (The number of threads per core is
> + * Threads per core + 1)
> + * 7:0 Core id (see bit decoding below)
> + * SMT:
> + * 4:3 node id
> + * 2 Core complex id
> + * 1:0 Core id
> + * Non SMT:
> + * 5:4 node id
> + * 3 Core complex id
> + * 1:0 Core id
> + */
Where are those bit offsets documented? AMD Family 17h PPR just
says "7:0 Core ID".
--
Eduardo
WARNING: multiple messages have this Message-ID (diff)
From: Eduardo Habkost <ehabkost@redhat.com>
To: Babu Moger <babu.moger@amd.com>
Cc: mst@redhat.com, marcel.apfelbaum@gmail.com, pbonzini@redhat.com,
rth@twiddle.net, mtosatti@redhat.com, qemu-devel@nongnu.org,
kvm@vger.kernel.org, kash@tripleback.net, geoff@hostfission.com
Subject: Re: [Qemu-devel] [PATCH v12 1/4] i386: Add support for CPUID_8000_001E for AMD
Date: Wed, 6 Jun 2018 18:26:26 -0300 [thread overview]
Message-ID: <20180606212626.GB7451@localhost.localdomain> (raw)
In-Reply-To: <1528295806-90593-2-git-send-email-babu.moger@amd.com>
On Wed, Jun 06, 2018 at 10:36:43AM -0400, Babu Moger wrote:
[...]
> + /*
> + * CPUID_Fn8000001E_EBX
> + * 31:16 Reserved
> + * 15:8 Threads per core (The number of threads per core is
> + * Threads per core + 1)
> + * 7:0 Core id (see bit decoding below)
> + * SMT:
> + * 4:3 node id
> + * 2 Core complex id
> + * 1:0 Core id
> + * Non SMT:
> + * 5:4 node id
> + * 3 Core complex id
> + * 1:0 Core id
> + */
Where are those bit offsets documented? AMD Family 17h PPR just
says "7:0 Core ID".
--
Eduardo
next prev parent reply other threads:[~2018-06-06 21:26 UTC|newest]
Thread overview: 34+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-06-06 14:36 [PATCH v12 0/4] i386: Enable TOPOEXT to support hyperthreading on AMD CPU Babu Moger
2018-06-06 14:36 ` [Qemu-devel] " Babu Moger
2018-06-06 14:36 ` [PATCH v12 1/4] i386: Add support for CPUID_8000_001E for AMD Babu Moger
2018-06-06 14:36 ` [Qemu-devel] " Babu Moger
2018-06-06 21:26 ` Eduardo Habkost [this message]
2018-06-06 21:26 ` Eduardo Habkost
2018-06-08 18:15 ` Moger, Babu
2018-06-08 18:15 ` [Qemu-devel] " Moger, Babu
2018-06-06 14:36 ` [PATCH v12 2/4] i386: Verify if topoext feature can be supported Babu Moger
2018-06-06 14:36 ` [Qemu-devel] " Babu Moger
2018-06-06 22:05 ` Eduardo Habkost
2018-06-06 22:05 ` [Qemu-devel] " Eduardo Habkost
2018-06-07 14:24 ` Moger, Babu
2018-06-07 14:24 ` [Qemu-devel] " Moger, Babu
2018-06-07 14:38 ` Eduardo Habkost
2018-06-07 14:38 ` [Qemu-devel] " Eduardo Habkost
2018-06-06 14:36 ` [PATCH v12 3/4] i386: Enable TOPOEXT feature on AMD EPYC CPU Babu Moger
2018-06-06 14:36 ` [Qemu-devel] " Babu Moger
2018-06-06 22:39 ` Eduardo Habkost
2018-06-06 22:39 ` [Qemu-devel] " Eduardo Habkost
2018-06-08 18:40 ` Moger, Babu
2018-06-08 18:40 ` [Qemu-devel] " Moger, Babu
2018-06-08 19:23 ` Eduardo Habkost
2018-06-08 19:23 ` [Qemu-devel] " Eduardo Habkost
2018-06-08 19:36 ` Moger, Babu
2018-06-08 19:36 ` [Qemu-devel] " Moger, Babu
2018-06-08 19:50 ` Eduardo Habkost
2018-06-08 19:50 ` [Qemu-devel] " Eduardo Habkost
2018-06-08 20:00 ` Moger, Babu
2018-06-08 20:00 ` [Qemu-devel] " Moger, Babu
2018-06-08 22:59 ` Moger, Babu
2018-06-08 22:59 ` [Qemu-devel] " Moger, Babu
2018-06-06 14:36 ` [PATCH v12 4/4] i386: Remove generic SMT thread check Babu Moger
2018-06-06 14:36 ` [Qemu-devel] " Babu Moger
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