From: "Min Xu" <min.m.xu@intel.com>
To: "Ni, Ray" <ray.ni@intel.com>,
"devel@edk2.groups.io" <devel@edk2.groups.io>,
"thomas.lendacky@amd.com" <thomas.lendacky@amd.com>
Cc: "Gao, Jiaqi" <jiaqi.gao@intel.com>,
"Wang, Jian J" <jian.j.wang@intel.com>,
"Gao, Liming" <gaoliming@byosoft.com.cn>,
"Bi, Dandan" <dandan.bi@intel.com>,
"Aktas, Erdem" <erdemaktas@google.com>,
"James Bottomley" <jejb@linux.ibm.com>,
"Yao, Jiewen" <jiewen.yao@intel.com>,
"Gerd Hoffmann" <kraxel@redhat.com>,
"Xu, Min M" <min.m.xu@intel.com>
Subject: Re: [edk2-devel] [PATCH V2 14/14] MdeModulePkg: Pool and page functions accept memory when OOM occurs
Date: Tue, 30 Aug 2022 06:00:58 +0000 [thread overview]
Message-ID: <PH0PR11MB50643FCA99EFA94D03EF3650C5799@PH0PR11MB5064.namprd11.prod.outlook.com> (raw)
In-Reply-To: <MWHPR11MB1631F8359A23AC233E476DDF8C799@MWHPR11MB1631.namprd11.prod.outlook.com>
On August 30, 2022 8:29 AM, Ni, Ray wrote:
> Can you please explain more about this patch?
> I am a little nervous when seeing patches that change the fundamental
> memory services.
>
With the introduction of lazy-page-accept, the OUT_OF_RESOURCE may occur in Memory Allocation logic (MdeModulePkg/Core/Dxe/Mem). To address this issue, this patch update the CoreAllocatePages()/CoreAllocatePool() so that when OUT_OF_RESOURCE is triggered, we can accept more unaccepted-memory with the help of EdkiiMemoryAcceptProtocol.
Please refer to slide7-10 in https://edk2.groups.io/g/devel/files/Designs/2021/0830/ . It describes how the AcceptMemoryResource works.
You can also refer to the discussion in https://edk2.groups.io/g/devel/message/79971.
Thanks
Min
next prev parent reply other threads:[~2022-08-30 6:01 UTC|newest]
Thread overview: 40+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-08-27 6:21 [PATCH V2 00/14] Introduce Lazy-accept for Tdx guest Min Xu
2022-08-27 6:21 ` [PATCH V2 01/14] MdeModulePkg: Add PrePiHob.h Min Xu
2022-09-01 15:47 ` Gerd Hoffmann
2022-09-01 23:34 ` Min Xu
2022-09-04 11:34 ` Min Xu
2022-09-07 5:30 ` Gerd Hoffmann
2022-09-07 23:56 ` [edk2-devel] " Min Xu
2022-08-27 6:21 ` [PATCH V2 02/14] MdePkg: Increase EFI_RESOURCE_MAX_MEMORY_TYPE Min Xu
2022-08-27 6:21 ` [PATCH V2 03/14] OvmfPkg: Use EFI_RESOURCE_MEMORY_UNACCEPTED which defined in MdeModulePkg Min Xu
2022-08-27 6:21 ` [PATCH V2 04/14] MdePkg: Add UEFI Unaccepted memory definition Min Xu
2022-08-27 6:21 ` [PATCH V2 05/14] MdeModulePkg: Update Dxe to handle unaccepted memory type Min Xu
2022-08-27 6:21 ` [PATCH V2 06/14] ShellPkg: Update shell command memmap to show unaccepted memory Min Xu
2022-09-01 15:50 ` Gerd Hoffmann
2022-08-27 6:21 ` [PATCH V2 07/14] OvmfPkg: Add PCD and DEFINEs for Lazy Accept page Min Xu
2022-09-01 15:56 ` Gerd Hoffmann
2022-09-01 23:33 ` [edk2-devel] " Min Xu
2022-09-02 5:30 ` Gerd Hoffmann
2022-08-27 6:21 ` [PATCH V2 08/14] OvmfPkg: Add MaxAcceptedMemoryAddress in TDX work area Min Xu
2022-08-27 6:21 ` [PATCH V2 09/14] OvmfPkg: Introduce lazy accept in PlatformInitLib and PlatformPei Min Xu
2022-08-27 6:21 ` [PATCH V2 10/14] OvmfPkg: Update ConstructFwHobList for lazy accept Min Xu
2022-08-27 6:21 ` [PATCH V2 11/14] MdePkg: The prototype definition of EdkiiMemoryAcceptProtocol Min Xu
2022-09-01 15:57 ` Gerd Hoffmann
2022-08-27 6:21 ` [PATCH V2 12/14] OvmfPkg: Realize EdkiiMemoryAcceptProtocol in TdxDxe Min Xu
2022-09-01 15:58 ` Gerd Hoffmann
2022-08-27 6:21 ` [PATCH V2 13/14] OvmfPkg: Call gEdkiiMemoryAcceptProtocolGuid to accept pages Min Xu
2022-09-01 15:59 ` Gerd Hoffmann
2022-08-27 6:21 ` [PATCH V2 14/14] MdeModulePkg: Pool and page functions accept memory when OOM occurs Min Xu
2022-08-29 20:47 ` Lendacky, Thomas
2022-08-30 0:29 ` [edk2-devel] " Ni, Ray
2022-08-30 6:00 ` Min Xu [this message]
2022-08-30 6:14 ` Ni, Ray
2022-08-30 6:35 ` Min Xu
2022-08-30 7:12 ` Ni, Ray
2022-08-30 7:30 ` Min Xu
2022-08-30 7:43 ` Ni, Ray
2022-08-30 8:08 ` Min Xu
2022-08-30 9:28 ` Ni, Ray
[not found] ` <17100F9FBCB0C570.28430@groups.io>
2022-08-30 7:47 ` Ni, Ray
2022-08-30 3:20 ` Min Xu
2022-08-30 14:24 ` Lendacky, Thomas
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