[edk2-devel] [PATCH V2 0/2] Rename XenTimerDxe to LocalApicTimerDxe
Yao, Jiewen
jiewen.yao at intel.com
Tue Nov 2 09:38:05 UTC 2021
Hi Min
I think it is good idea to rename to LocalApicTimeDxe.
I double checked dependency in INF file. But I did not know why it depends upon OvmfPkg.
=======================
[LibraryClasses]
UefiBootServicesTableLib
BaseLib
DebugLib
UefiDriverEntryPoint
LocalApicLib
...
[Protocols]
gEfiCpuArchProtocolGuid ## CONSUMES
gEfiTimerArchProtocolGuid ## PRODUCES
[Pcd]
gEfiMdePkgTokenSpaceGuid.PcdFSBClock ## CONSUMES
[Depex]
gEfiCpuArchProtocolGuid
=======================
Do you think it should so generic that it can remove OvmfPkg dependency and be moved to UefiCpuPkg?
Thank you
Yao Jiewen
> -----Original Message-----
> From: Xu, Min M <min.m.xu at intel.com>
> Sent: Monday, November 1, 2021 4:46 PM
> To: devel at edk2.groups.io
> Cc: Xu, Min M <min.m.xu at intel.com>; Ard Biesheuvel
> <ardb+tianocore at kernel.org>; Justen, Jordan L <jordan.l.justen at intel.com>;
> Brijesh Singh <brijesh.singh at amd.com>; Erdem Aktas
> <erdemaktas at google.com>; James Bottomley <jejb at linux.ibm.com>; Yao,
> Jiewen <jiewen.yao at intel.com>; Tom Lendacky <thomas.lendacky at amd.com>;
> Gerd Hoffmann <kraxel at redhat.com>
> Subject: [PATCH V2 0/2] Rename XenTimerDxe to LocalApicTimerDxe
>
> 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.
>
> 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.
>
> Code at: https://github.com/mxu9/edk2/tree/ovmf_lapic_timer.v2
>
> 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>
> Signed-off-by: Min Xu <min.m.xu at intel.com>
>
> Min Xu (2):
> OvmfPkg: Rename XenTimerDxe to LocalApicTimerDxe
> OvmfPkg: Switch timer in build time for OvmfPkg
>
> OvmfPkg/AmdSev/AmdSevX64.dsc | 5 +++--
> OvmfPkg/AmdSev/AmdSevX64.fdf | 3 +--
> .../LocalApicTimerDxe.c} | 7 +++----
> .../LocalApicTimerDxe.h} | 4 ++--
> .../LocalApicTimerDxe.inf} | 6 +++---
> OvmfPkg/Microvm/MicrovmX64.dsc | 2 +-
> OvmfPkg/Microvm/MicrovmX64.fdf | 2 +-
> OvmfPkg/OvmfPkgIa32.dsc | 10 +++++++++-
> OvmfPkg/OvmfPkgIa32.fdf | 8 ++++++--
> OvmfPkg/OvmfPkgIa32X64.dsc | 10 +++++++++-
> OvmfPkg/OvmfPkgIa32X64.fdf | 8 ++++++--
> OvmfPkg/OvmfPkgX64.dsc | 10 +++++++++-
> OvmfPkg/OvmfPkgX64.fdf | 8 ++++++--
> OvmfPkg/OvmfXen.dsc | 2 +-
> OvmfPkg/OvmfXen.fdf | 2 +-
> 15 files changed, 61 insertions(+), 26 deletions(-)
> rename OvmfPkg/{XenTimerDxe/XenTimerDxe.c =>
> LocalApicTimerDxe/LocalApicTimerDxe.c} (95%)
> rename OvmfPkg/{XenTimerDxe/XenTimerDxe.h =>
> LocalApicTimerDxe/LocalApicTimerDxe.h} (96%)
> rename OvmfPkg/{XenTimerDxe/XenTimerDxe.inf =>
> LocalApicTimerDxe/LocalApicTimerDxe.inf} (86%)
>
> --
> 2.29.2.windows.2
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