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From:   "Luck, Tony" <tony.luck@intel.com>
To:     Avadhut Naik <avadhut.naik@amd.com>,
        "linux-acpi@vger.kernel.org" <linux-acpi@vger.kernel.org>
CC:     "rafael@kernel.org" <rafael@kernel.org>,
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        "james.morse@arm.com" <james.morse@arm.com>,
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        "yazen.ghannam@amd.com" <yazen.ghannam@amd.com>,
        "avadnaik@amd.com" <avadnaik@amd.com>
Subject: RE: [RESEND v2] ACPI: APEI: Skip initialization of GHES_ASSIST
 structures for Machine Check Architecture
Thread-Topic: [RESEND v2] ACPI: APEI: Skip initialization of GHES_ASSIST
 structures for Machine Check Architecture
Thread-Index: AQHaEO3NFJz87tXJiECUva1Bzfb8M7BtwNPA
Date:   Mon, 6 Nov 2023 20:42:29 +0000
Message-ID: <SJ1PR11MB6083962F7F6C4C535EE1CB94FCAAA@SJ1PR11MB6083.namprd11.prod.outlook.com>
References: <20231106201340.434878-1-avadhut.naik@amd.com>
In-Reply-To: <20231106201340.434878-1-avadhut.naik@amd.com>
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> To support GHES_ASSIST on Machine Check Architecture (MCA) error sources,
> a set of GHES structures is provided by the system firmware for each MCA
> error source. Each of these sets consists of a GHES structure for each MC=
A
> bank on each logical CPU, with all structures of a set sharing a common
> Related Source ID, equal to the Source ID of one of the MCA error source
> structures.[1] On SOCs with large core counts, this typically equates to
> tens of thousands of GHES_ASSIST structures for MCA under
> "/sys/bus/platform/drivers/GHES".

What combination of CONFIG options and BIOS table support results in this?

I don't see much under "/sys/bus/platform/drivers/GHES" on my lab machine
(Dual socket * 36 cores * HT =3D 144 logical CPUs).

-Tony