From: "Gerd Hoffmann" <kraxel@redhat.com>
To: devel@edk2.groups.io, ray.ni@intel.com
Cc: Eric Dong <eric.dong@intel.com>
Subject: Re: [edk2-devel] [PATCH 01/10] UefiCpuPkg: Create CpuPageTableLib for manipulating X86 paging structs
Date: Mon, 18 Jul 2022 15:49:54 +0200 [thread overview]
Message-ID: <20220718134954.s7h5gmbqbcim6nis@sirius.home.kraxel.org> (raw)
In-Reply-To: <20220718131831.660-2-ray.ni@intel.com>
On Mon, Jul 18, 2022 at 09:18:22PM +0800, Ni, Ray wrote:
> The lib includes two APIs:
> * PageTableMap
> It creates/updates mapping from LA to PA.
> The implementation only supports paging structures used in 64bit
> mode now. PAE paging structure support will be added in future.
>
> * PageTableParse
> It parses the page table and returns the mapping relations in an
> array of IA32_MAP_ENTRY.
>
> It passed some stress tests. These test code will be upstreamed in
> other patches following edk2 Unit Test framework.
Nice to finally see the paging library arrive.
What is the plan for splitting huge pages? I remember several places
needed that functionality. Will the library get functions for that in
the future? Or is the plan to hide that from callers, i.e. have
PageTableMap() automatically create huge pages if possible and split
them if needed?
thanks,
Gerd
next prev parent reply other threads:[~2022-07-18 13:50 UTC|newest]
Thread overview: 16+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-07-18 13:18 [PATCH 00/10] UefiCpuPkg: Create CpuPageTableLib for manipulating X86 paging structs Ni, Ray
2022-07-18 13:18 ` [PATCH 01/10] " Ni, Ray
2022-07-18 13:49 ` Gerd Hoffmann [this message]
2022-07-19 8:17 ` [edk2-devel] " Ni, Ray
2022-08-15 16:23 ` Lendacky, Thomas
2022-08-16 2:25 ` Ni, Ray
2022-07-18 13:18 ` [PATCH 02/10] UefiCpuPkg/CpuPageTableLib: Return error on invalid parameters Ni, Ray
2022-07-18 13:18 ` [PATCH 03/10] CpuPageTableLib: Fix a bug when a bit is 1 in Attribute, 0 in Mask Ni, Ray
2022-07-18 13:18 ` [PATCH 04/10] CpuPageTableLib: Refactor the logic Ni, Ray
2022-07-18 13:18 ` [PATCH 05/10] CpuPageTableLib: Split the page entry when LA is aligned but PA is not Ni, Ray
2022-07-18 13:18 ` [PATCH 06/10] CpuPageTableLib: Avoid treating non-leaf entry as leaf one Ni, Ray
2022-07-18 13:18 ` [PATCH 07/10] CpuPageTableLib: Fix parent attributes are not inherited properly Ni, Ray
2022-07-18 13:18 ` [PATCH 08/10] CpuPageTableLib: Fix a bug to avoid unnecessary changing to page table Ni, Ray
2022-07-18 13:18 ` [PATCH 09/10] CpuPageTableLib: Fix bug that wrongly requires extra size for mapping Ni, Ray
2022-07-18 13:18 ` [PATCH 10/10] CpuPageTableLib: define IA32_PAGE_LEVEL enum type internally Ni, Ray
2022-08-09 3:46 ` [edk2-devel] [PATCH 00/10] UefiCpuPkg: Create CpuPageTableLib for manipulating X86 paging structs Dong, Eric
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