From: "Gerd Hoffmann" <kraxel@redhat.com>
To: Jiaxin Wu <jiaxin.wu@intel.com>
Cc: devel@edk2.groups.io, Eric Dong <eric.dong@intel.com>,
Ray Ni <ray.ni@intel.com>, Zeng Star <star.zeng@intel.com>,
Laszlo Ersek <lersek@redhat.com>,
Rahul Kumar <rahul1.kumar@intel.com>
Subject: Re: [PATCH v3 1/5] UefiCpuPkg/SmmBaseHob.h: Add SMM Base HOB Data
Date: Wed, 18 Jan 2023 12:19:13 +0100 [thread overview]
Message-ID: <20230118111913.xgjlxdhngzwhvf76@sirius.home.kraxel.org> (raw)
In-Reply-To: <20230118095620.9860-2-jiaxin.wu@intel.com>
Hi,
> +#pragma pack(1)
> +typedef struct {
> + ///
> + /// Describes the Number of all max supported processors.
> + ///
> + UINT64 NumberOfProcessors;
> + ///
> + /// Pointer to SmBase address for each Processors.
> + ///
> + UINT64 SmBase[];
> +} SMM_BASE_HOB_DATA;
> +#pragma pack()
HOBs are limited to 64k in size. So this can by design support at most
8191 processors. Adding such a interface to edk2 doesn't look like a
good idea to me. It probably is not that far off that we'll hit that
limit given that high-end systems with 1024+ processors exist today.
take care,
Gerd
next prev parent reply other threads:[~2023-01-18 11:19 UTC|newest]
Thread overview: 45+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-01-18 9:56 [PATCH v3 0/5] Simplify SMM Relocation Process Wu, Jiaxin
2023-01-18 9:56 ` [PATCH v3 1/5] UefiCpuPkg/SmmBaseHob.h: Add SMM Base HOB Data Wu, Jiaxin
2023-01-18 11:19 ` Gerd Hoffmann [this message]
2023-01-18 15:06 ` Ni, Ray
2023-01-19 7:13 ` Gerd Hoffmann
2023-01-29 5:08 ` Wu, Jiaxin
2023-02-01 13:02 ` Gerd Hoffmann
2023-01-20 8:21 ` Laszlo Ersek
2023-01-29 5:24 ` Wu, Jiaxin
2023-02-01 13:14 ` Gerd Hoffmann
2023-02-02 0:44 ` Wu, Jiaxin
2023-02-02 3:54 ` [edk2-devel] " Ni, Ray
2023-02-02 3:52 ` Ni, Ray
2023-02-02 12:51 ` Gerd Hoffmann
2023-02-02 22:29 ` [edk2-devel] " Brian J. Johnson
2023-02-03 3:14 ` Ni, Ray
2023-02-03 7:54 ` Gerd Hoffmann
2023-02-03 13:22 ` Wu, Jiaxin
2023-02-03 13:31 ` Ni, Ray
2023-02-03 15:00 ` Gerd Hoffmann
2023-01-18 9:56 ` [PATCH v3 2/5] UefiCpuPkg/PiSmmCpuDxeSmm: Fix invalid InitializeMpSyncData call Wu, Jiaxin
2023-01-18 9:56 ` [PATCH v3 3/5] UefiCpuPkg/PiSmmCpuDxeSmm: Consume SMM Base Hob for SmBase info Wu, Jiaxin
2023-01-18 12:02 ` Gerd Hoffmann
2023-01-29 6:14 ` [edk2-devel] " Wu, Jiaxin
2023-01-18 9:56 ` [PATCH v3 4/5] UefiCpuPkg/SmmCpuFeaturesLib: Skip SMBASE configuration Wu, Jiaxin
2023-01-18 9:56 ` [PATCH v3 5/5] OvmfPkg/SmmCpuFeaturesLib: " Wu, Jiaxin
2023-01-18 12:19 ` Gerd Hoffmann
2023-01-18 14:37 ` Ni, Ray
2023-01-19 7:53 ` Gerd Hoffmann
2023-01-29 5:47 ` Wu, Jiaxin
2023-02-01 13:40 ` Gerd Hoffmann
2023-02-02 1:41 ` Wu, Jiaxin
2023-02-02 9:00 ` Gerd Hoffmann
2023-02-02 11:47 ` Laszlo Ersek
2023-02-02 12:24 ` Gerd Hoffmann
2023-02-03 3:05 ` Wu, Jiaxin
2023-02-03 2:47 ` Wu, Jiaxin
2023-02-03 3:45 ` Ni, Ray
2023-02-03 7:31 ` Gerd Hoffmann
2023-02-03 7:43 ` Ni, Ray
2023-02-03 8:49 ` Gerd Hoffmann
2023-02-03 11:18 ` Wu, Jiaxin
[not found] ` <173B5EAF72B992BD.14781@groups.io>
2023-02-03 8:59 ` [edk2-devel] " Wu, Jiaxin
2023-02-03 9:04 ` Gerd Hoffmann
2023-02-03 11:15 ` Wu, Jiaxin
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