[edk2-devel] [PATCH V3 0/3] Rename XenTimerDxe to LocalApicTimerDxe

Gerd Hoffmann kraxel at redhat.com
Tue Nov 9 06:59:46 UTC 2021


On Mon, Nov 08, 2021 at 02:07:57PM +0800, Min Xu wrote:
> BZ: https://bugzilla.tianocore.org/show_bug.cgi?id=3711
> 
> XenTimerDxe is a local Apic timer driver and it has nothing to do
> with Xen. So rename it to LocalApicTimerDxe.
> 
> After renaming, LocalApicTimerDxe is used in OvmfPkg if CSM_ENABLE=FALSE.
> Otherwise 8254 timer is used.
> 
> Since LocalApicTimerDxe doesn't depend on OvmfPkg, so it is moved to
> UefiCpuPkg.
> 
> Patch #1:
> Rename XenTimerDxe to LocalApicTimerDxe
> 
> Patch #2:
> Switch timer in build time for OvmfPkg. If CSM_ENABLE=TRUE, 8254 timer
> is used, otherwise the timer is LocalApicTimerDxe.
> 
> Patch #3:
> Move LocalApicTimerDxe from OvmfPkg to UefiCpuPkg.
> 
> Code at: https://github.com/mxu9/edk2/tree/ovmf_lapic_timer.v3
> 
> v3 changes:
>  - Move LocalApicTimerDxe to UefiCpuPkg
>  - Fix the errors in v2 patch-1 that OvmfXen.dsc / .fdf and
>    MicrovmX64.dsc / .fdf are not updated for new name.
>  - Add XenTimerDxe reviewers.
> 
> v2 changes:
>  - Add gEfiMdePkgTokenSpaceGuid.PcdFSBClock in *.dsc
> 
> Cc: Ard Biesheuvel <ardb+tianocore at kernel.org>
> Cc: Jordan Justen <jordan.l.justen at intel.com>
> Cc: Brijesh Singh <brijesh.singh at amd.com>
> Cc: Erdem Aktas <erdemaktas at google.com>
> Cc: James Bottomley <jejb at linux.ibm.com>
> Cc: Jiewen Yao <jiewen.yao at intel.com>
> Cc: Tom Lendacky <thomas.lendacky at amd.com>
> Cc: Gerd Hoffmann <kraxel at redhat.com>
> Cc: Eric Dong <eric.dong at intel.com>
> Cc: Ray Ni <ray.ni at intel.com>
> Signed-off-by: Min Xu <min.m.xu at intel.com>

Reviewed-by: Gerd Hoffmann <kraxel at redhat.com>



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