From: "Ni, Ray" <ray.ni@intel.com>
To: "devel@edk2.groups.io" <devel@edk2.groups.io>,
"kraxel@redhat.com" <kraxel@redhat.com>,
"Wu, Jiaxin" <jiaxin.wu@intel.com>
Cc: Laszlo Ersek <lersek@redhat.com>,
"Dong, Eric" <eric.dong@intel.com>,
"Zeng, Star" <star.zeng@intel.com>,
"Kumar, Rahul R" <rahul.r.kumar@intel.com>,
"Kinney, Michael D" <michael.d.kinney@intel.com>,
"Zimmer, Vincent" <vincent.zimmer@intel.com>
Subject: Re: [edk2-devel] [PATCH v3 1/5] UefiCpuPkg/SmmBaseHob.h: Add SMM Base HOB Data
Date: Thu, 2 Feb 2023 03:54:43 +0000 [thread overview]
Message-ID: <DM4PR11MB8226BEEF3FF0D4D2AA6229848CD69@DM4PR11MB8226.namprd11.prod.outlook.com> (raw)
In-Reply-To: <20230201131450.qygfyr4t3uidj7z6@sirius.home.kraxel.org>
> -----Original Message-----
> From: devel@edk2.groups.io <devel@edk2.groups.io> On Behalf Of Gerd
> Hoffmann
> Sent: Wednesday, February 1, 2023 9:15 PM
> To: Wu, Jiaxin <jiaxin.wu@intel.com>
> Cc: Laszlo Ersek <lersek@redhat.com>; Ni, Ray <ray.ni@intel.com>;
> devel@edk2.groups.io; Dong, Eric <eric.dong@intel.com>; Zeng, Star
> <star.zeng@intel.com>; Kumar, Rahul R <rahul.r.kumar@intel.com>; Kinney,
> Michael D <michael.d.kinney@intel.com>; Zimmer, Vincent
> <vincent.zimmer@intel.com>
> Subject: Re: [edk2-devel] [PATCH v3 1/5] UefiCpuPkg/SmmBaseHob.h: Add
> SMM Base HOB Data
>
> On Sun, Jan 29, 2023 at 05:24:31AM +0000, Wu, Jiaxin wrote:
> > Thanks Gerd raise this open -- how to support more processors due to hob
> size limitation.
> >
> > Looks multiple hobs is the only way since we have to store each cpu's
> > info? Sorry, allow me ask a stupid question: why DataLength in hob
> > defined as UINT16 causing the hob size limitation? Any design
> > background here?
>
> Probably just nobody expected that big hobs being ever needed when this
> was designed looooong ago.
>
> But as laszlo outlined: There is the option to use a page allocation
> for the array and store a pointer to the array in the HOB. Which is
> probably the simplest approach given you have a single, linear array
> then.
Gerd,
I replied in another thread to Laszlo's page allocation proposal to explain
why page allocation is not preferred (considering the standalone MM).
next prev parent reply other threads:[~2023-02-02 3:54 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
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 ` Ni, Ray [this message]
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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