[edk2-devel] [PATCH 00/43] OvmfPkg: remove Xen support from OvmfPkg*.dsc, in favor of OvmfXen.dsc

[Leif Lindholm]

On Thu, May 27, 2021 at 2:07 PM Leif Lindholm <leif at nuviainc.com> wrote:
>
> On Wed, May 26, 2021 at 22:14:03 +0200, Laszlo Ersek wrote:
> > Bugzilla: https://bugzilla.tianocore.org/show_bug.cgi?id=2122
> > Repo:     https://pagure.io/lersek/edk2.git
> > Branch:   xen_split_bz_2122
> >
> > This patch set removes dynamic Xen enlightenment from the following
> > platforms:
> >
> >   OvmfPkg/OvmfPkgIa32.dsc
> >   OvmfPkg/OvmfPkgIa32X64.dsc
> >   OvmfPkg/OvmfPkgX64.dsc
> >
> > In Xen guests, the following platform should be used:
> >
> >   OvmfPkg/OvmfXen.dsc
> >
> > Please see more details / references in the bugzilla ticket.
> >
> > NOOPT build savings:
> >
> > - Ia32:    PEIFV 1536 bytes, DXEFV 130288 bytes
> > - Ia32X64: PEIFV 1536 bytes, DXEFV 140912 bytes
> > - X64:     PEIFV 1664 bytes, DXEFV 140912 bytes
> > - Xen:     PEIFV  256 bytes, DXEFV  69504 bytes
> >
> > Functional testing:
> >
> > - Booted a Fedora guest on OvmfPkgIa32X64 on QEMU/KVM, compared verbose
> >   logs before-after. Memory allocations were satisfied at different
> >   addresses, as expected, plus the Xen drivers were absent. No
> >   differences otherwise.
> >
> > - Booted a RHEL guest on ArmVirtQemu on AARCH64. Memory allocations were
> >   satisfied at different addresses, as expected.
> >
> > - Xen regression-testing was not done; I'm requesting feedback.
> >
> > Build testing / bisectability: at every stage, the series builds with
> > the following script:
> >
> > > #!/bin/bash
> > > set -e -u -C
> > >
> > > build -b DEBUG -t GCC5 -p ArmVirtPkg/ArmVirtKvmTool.dsc            -a
AARCH64
> > > build -b DEBUG -t GCC5 -p ArmVirtPkg/ArmVirtKvmTool.dsc    -a ARM
> > > build -b NOOPT -t GCC5 -p ArmVirtPkg/ArmVirtQemu.dsc               -a
AARCH64
> > > build -b NOOPT -t GCC5 -p ArmVirtPkg/ArmVirtQemu.dsc       -a ARM
> > > build -b NOOPT -t GCC5 -p ArmVirtPkg/ArmVirtQemuKernel.dsc         -a
AARCH64
> > > build -b NOOPT -t GCC5 -p ArmVirtPkg/ArmVirtQemuKernel.dsc -a ARM
> > > build -b NOOPT -t GCC5 -p ArmVirtPkg/ArmVirtXen.dsc                -a
AARCH64
> > > build -b NOOPT -t GCC5 -p ArmVirtPkg/ArmVirtXen.dsc        -a ARM
> > > build -b NOOPT -t GCC5 -p OvmfPkg/AmdSev/AmdSevX64.dsc             -a
X64
> > > build -b NOOPT -t GCC5 -p OvmfPkg/Bhyve/BhyveX64.dsc               -a
X64
> > > build -b NOOPT -t GCC5 -p OvmfPkg/OvmfPkgIa32.dsc          -a IA32
> > > build -b NOOPT -t GCC5 -p OvmfPkg/OvmfPkgIa32X64.dsc       -a IA32 -a
X64
> > > build -b NOOPT -t GCC5 -p OvmfPkg/OvmfPkgX64.dsc                   -a
X64
> > > build -b NOOPT -t GCC5 -p OvmfPkg/OvmfXen.dsc                      -a
X64
> >
> > The patches in the series were formatted with the following options, for
> > posting:
> >
> >   --stat=1000 --stat-graph-width=20 --find-copies-harder -U6
> >
> > (The option "--find-copies-harder" is not the best for presenting every
> > single patch in the series, in isolation, but taken globally for the
> > entire series, it is the most helpful option.)
> >
> > Some patches advance with really small steps, in order to cut down on a
> > subsequent "meaty" patch. Personally I don't like reviewing code
> > movement patches, so I did my best to (a) keep that to a minimum, and
> > (b) present it as unintrusively as possible.
> >
> > The CC list is a bit long; the reason is that I kept touching up
> > "Maintainers.txt", and the "OvmfPkg/Bhyve" and "OvmfPkg/AmdSev"
> > platforms as well (whenever it made sense).
>
> I presume I was primarily cc:d for the Maintainers.txt bit?
> For that (patches 11, 12, 21):
> Reviewed-by: Leif Lindholm <leif at nuviainc.com>

Gah. Also for 32,39/43:
Reviewed-by: Leif Lindholm <leif at nuviainc.com>

Sorry, I think that's all of them.

/
    Leif


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