Re: [PATCH] UefiPayloadPkg: Enhance UEFI payload for coreboot and Slim Bootloader

["Dong, Guo" <guo.dong@intel.com>]

Hi Ray,

Yes, the new UefiPayload will not require legacy 8254 timer.
And we could remove Coreboot packages after UefiPayloadPkg check in.

Thanks,
Guo

> -----Original Message-----
> From: Ni, Ray
> Sent: Thursday, March 28, 2019 10:15 PM
> To: Dong, Guo <guo.dong@intel.com>; edk2-devel@lists.01.org; Laszlo Ersek
> <lersek@redhat.com>
> Cc: Wu, Hao A <hao.a.wu@intel.com>; Kinney, Michael D
> <michael.d.kinney@intel.com>; Ma, Maurice <maurice.ma@intel.com>
> Subject: RE: [edk2] [PATCH] UefiPayloadPkg: Enhance UEFI payload for
> coreboot and Slim Bootloader
> 
> 
> Guo,
> Just to double confirm: UefiPayloadPkg will not require Legacy8254 timer
> support.
> The old packages Coreboot*Pkgs will be removed.
> Which means now only QEMU/OVMF needs the Legacy8254 support.
> 
> Laszlo,
> Now since QEMU/OVMF is the only consumer of the Legacy8254 driver, do
> you agree that the Legacy8254 is moved to OvmfPkg?
> Note: We agreed that Legacy8259 will be moved to OvmfPkg/Csm directory
> and that decision is not going to be changed by this new situation.
> 
> Thanks,
> Ray
> 
> > -----Original Message-----
> > From: edk2-devel <edk2-devel-bounces@lists.01.org> On Behalf Of Guo
> > Dong
> > Sent: Friday, March 29, 2019 8:34 AM
> > To: edk2-devel@lists.01.org
> > Subject: [edk2] [PATCH] UefiPayloadPkg: Enhance UEFI payload for
> > coreboot and Slim Bootloader
> >
> > CorebootModulePkg and CorebootPayloadPkg originally supports coreboot
> > only.
> > In order to support other bootloaders, such as Slim Bootloader, they
> > need be updated to be more generic.
> > UEFI Payload (UefiPayloadPkg) a converged package from
> > CorebootModulePkg and CorebootPayloadPkg with following updates:
> > a. Support both coreboot and Slim Bootloader b. Removed
> > SataControllerDxe and BaseSerialPortLib16550 to use EDK2 modules c.
> > Support passing bootloader parameter to UEFI payload, e.g. coreboot
> >    table from coreboot or HOB list from Slim Bootloader d. Using
> > GraphicsOutputDxe from EDK2 with minor change instead of FbGop e.
> > Remove the dependency to IntelFrameworkPkg and
> IntelFrameworkModulePkg
> >    and QuarkSocPkg
> > f. Use BaseDebugLibSerialPort library as DebugLib g. Use HPET timer,
> > drop legacy 8254 timer support h. Use BaseXApicX2ApicLib instead of
> > BaseXApicLib i. Other clean ups
> >
> > On how UefiPayloadPkg could work with coreboot/Slim Bootloader, please
> > refer UefiPayloadPkg/BuildAndIntegrationInstructions.txt
> >
> > Once UefiPayloadPkg is checked-in, CorebootModulePkg and
> > CorebootPayloadPkg could be retired.
> >
> > Contributed-under: TianoCore Contribution Agreement 1.1
> > Signed-off-by: Guo Dong <guo.dong@intel.com>