If you want to support PVH-only, that means you *defeature* the CloudHv in *edk2-stable202202* tag according to https://github.com/tianocore/tianocore.github.io/wiki/EDK-II-Release-Planning. I hope that is stated clearly, with justification why we choose PVH-only. Something like: "In edk2-stable202202, CloudHv supported xxx. In edk2-stable202205 or future, CloudHv for non-TDX will only support PVH, because xxxxxx. The CloudFv for TDX will continue support xxx." An ASCII table is preferred to clarify the combination.
If possible, please create a similar README under https://github.com/tianocore/edk2/tree/master/OvmfPkg/CloudHv to record such info. (configuration, feature, supported v.s. unsupported, URL link, how to build, how to launch, etc) FYI: The readme in Microvm is a good example - https://github.com/tianocore/edk2/blob/master/OvmfPkg/Microvm/README. Thank you Yao Jiewen > -----Original Message----- > From: Boeuf, Sebastien <sebastien.bo...@intel.com> > Sent: Wednesday, February 23, 2022 8:20 PM > To: kra...@redhat.com; devel@edk2.groups.io > Cc: Yao, Jiewen <jiewen....@intel.com>; Justen, Jordan L > <jordan.l.jus...@intel.com> > Subject: Re: [edk2-devel] [PATCH 0/3] CloudHv: Rely on PVH boot specification > > On Wed, 2022-02-23 at 13:02 +0100, kra...@redhat.com wrote: > > Hi, > > > > > Well that's a good question. If we expect the same target (CloudHv) > > > to > > > support both TDX and non-TDX, that means the generated TDVF will be > > > a > > > PVH ELF binary, which will require some special handling from Cloud > > > Hypervisor. > > > Having two separate targets would simplify things a lot. What's the > > > plan for QEMU? Will the same OVMF target cover both use cases? > > > > Yes, there will be a single binary supporting both tdx and non-tdx, > > some > > configs add sev to the mix. Doing the same for cloudhv shouldn't be > > much > > of a problem I think. > > > > In tdx mode the firmware uses the tdhob for memory detection, in non- > > tdx > > mode qemu fw_cfg is used instead. The cloudhv build could switch > > between tdhob and pvhinfo in a simliar way. > > Sounds good :) > > > > > take care, > > Gerd > > -=-=-=-=-=-=-=-=-=-=-=- Groups.io Links: You receive all messages sent to this group. View/Reply Online (#86907): https://edk2.groups.io/g/devel/message/86907 Mute This Topic: https://groups.io/mt/89319389/21656 Group Owner: devel+ow...@edk2.groups.io Unsubscribe: https://edk2.groups.io/g/devel/unsub [arch...@mail-archive.com] -=-=-=-=-=-=-=-=-=-=-=-
