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From: Laszlo Ersek <lersek@redhat.com>
To: Anthony PERARD <anthony.perard@citrix.com>,
	edk2-devel@ml01.01.org, xen-devel@lists.xenproject.org
Subject: Re: [PATCH RFC 00/14] Specific platform to run OVMF in Xen PVH and HVM guests
Date: Wed, 4 Jan 2017 20:52:00 +0100	[thread overview]
Message-ID: <1decd92c-7567-ecc0-3ee7-9097ad15ff6c@redhat.com> (raw)
In-Reply-To: <20161208153340.2285-1-anthony.perard@citrix.com>

On 12/08/16 16:33, Anthony PERARD wrote:
> Hi,
> 
> I've started to create a Xen specifig plaform, in OvmfPkg/XenOvmf.dsc
> with the goal to make it work on both Xen HVM and Xen PVHv2

Does this mean we can ultimately move all Xen roles from the current
platform DSC files to the new Xen DSC file entirely?

If so (which I think I would like), then for each module M that exhibits
all of the following properties:
- M is dynamically customized to Xen vs. QEMU,
- M is replaced by a dedicated module M' in the Xen DSC,
I think we should also remove the Xen-specific code from the original M
(as last step, likely in separate patches).

In addition, Xen platform specific device drivers should be removed as
well from the original DSC files.

What do you think?

> The first few patches only create the platform and duplicate some code from
> OvmfPkg and the later patches (from OvmfPkg/XenPlatformPei: Add xen PVH
> specific code) makes OVMF boot in a Xen PVH guest, and can boot a Linux.
> 
> == Part 1: XenOvmf.dsc
> 
> - OvmfPkg: Create platform XenOvmf
> which for now remove virtio drivers and some SMM
> 
> - OvmfPkg/XenOvmf: Update debug IO port for Xen
> 
> - OvmfPkg/XenOvmf.dsc: Introduce XenResetVector
> Just for one change, enable cache in CR0 as on Xen, OVMF run from RAM, that
> disabling cache can make OVMF very slow.
> 

... I might reply to this email again (the remaining stuff), as I
progress with the review.

Thanks
Laszlo

> - OvmfPkg: Introduce XenPlatformPei
> remove some QEMU/KVM specific code from PlatformPei.
> 
> - OvmfPkg/Library: add XenPciHostBridgeLib
> same with PciHostBridgeLib
> 
> == Part 2: PVH enabled
> 
> - OvmfPkg/XenPlatformPei: Add xen PVH specific code
> To figure out the memory size from E820
> 
> - OvmfPkg/XenResetVector: Add new entry point for Xen PVH
> which is in 32bits
> 
> - OvmfPkg/PlatformBootManagerLib: Workaround missing PCI bus on Xen PVH
> to avoid the Unknown Host Bridge Device ID error
> 
> - OvmfPkg/ResetSystemLib: Add missing dependency on PciLib
> - UefiCpuPkg/BaseXApicX2ApicLib: Fix initialisation on my system and ...
> - OvmfPkg/XenOvmf: Adding XenTimerLocalApic
> to replace the ACPI timer
> 
> - OvmfPkg/PlatformBootManagerLib: Use a Xen console for ConOut/ConIn
> - OvmfPkg: Introduce XenIoPvhDxe to initialize Grant Tables
> - XenOvmf: Use a different RTC
> which does always return the same value
> 
> == to build and boot
> 
> To build, simply run OvmfPkg/build.sh -p OvmfPkg/XenOvmf.dsc
> 
> To run, I currently use a loader, base on hvmloader which does some setup, read
> the e820 and copy ovmf to the right place to start it.
> 
> The loader is avaible in branch `ovmf-pvhloader' from
> https://xenbits.xen.org/git-http/people/aperard/xen-unstable.git
> 
> And the guest I'm using:
> builder = 'hvm'
> memory = 512
> name = "pvh-ovmf"
> kernel = 'pvh-ovmf-loader'
> ramdisk='OVMF.fd'
> extra='ovmf=1'
> disk = [ 'file:iso/archlinux-2016.10.01-dual.iso,hdc:cdrom,r', ]
> device_model_version = 'none'
> serial = 'pty'
> 
> Anthony PERARD (14):
>   OvmfPkg: Create platform XenOvmf
>   OvmfPkg/XenOvmf: Update debug IO port for Xen
>   OvmfPkg/XenOvmf.dsc: Introduce XenResetVector
>   OvmfPkg: Introduce XenPlatformPei
>   OvmfPkg/Library: add XenPciHostBridgeLib
>   OvmfPkg/XenPlatformPei: Add xen PVH specific code
>   OvmfPkg/XenResetVector: Add new entry point for Xen PVH
>   OvmfPkg/PlatformBootManagerLib: Workaround missing PCI bus on Xen PVH
>   OvmfPkg/ResetSystemLib: Add missing dependency on PciLib
>   UefiCpuPkg/BaseXApicX2ApicLib: Fix initialisation on my system and ...
>   OvmfPkg/XenOvmf: Adding XenTimerLocalApic
>   OvmfPkg/PlatformBootManagerLib: Use a Xen console for ConOut/ConIn
>   OvmfPkg: Introduce XenIoPvhDxe to initialize Grant Tables
>   XenOvmf: Use a different RTC
> 
>  .../Library/PlatformBootManagerLib/BdsPlatform.c   |  35 +
>  .../PlatformBootManagerLib.inf                     |   2 +
>  OvmfPkg/Library/ResetSystemLib/ResetSystemLib.inf  |   1 +
>  .../Library/XenPciHostBridgeLib/XenPciHostBridge.h |  75 ++
>  .../XenPciHostBridgeLib/XenPciHostBridgeLib.c      | 291 ++++++++
>  .../XenPciHostBridgeLib/XenPciHostBridgeLib.inf    |  58 ++
>  OvmfPkg/Library/XenPciHostBridgeLib/XenSupport.c   | 456 ++++++++++++
>  OvmfPkg/XenIoPvhDxe/XenIoPvhDxe.c                  | 263 +++++++
>  OvmfPkg/XenIoPvhDxe/XenIoPvhDxe.inf                |  45 ++
>  OvmfPkg/XenOvmf.dsc                                | 809 +++++++++++++++++++++
>  OvmfPkg/XenOvmf.fdf                                | 506 +++++++++++++
>  OvmfPkg/XenPlatformPei/Cmos.c                      |  64 ++
>  OvmfPkg/XenPlatformPei/Cmos.h                      |  56 ++
>  OvmfPkg/XenPlatformPei/Fv.c                        | 100 +++
>  OvmfPkg/XenPlatformPei/MemDetect.c                 | 520 +++++++++++++
>  OvmfPkg/XenPlatformPei/Platform.c                  | 541 ++++++++++++++
>  OvmfPkg/XenPlatformPei/Platform.h                  | 114 +++
>  OvmfPkg/XenPlatformPei/Xen.c                       | 231 ++++++
>  OvmfPkg/XenPlatformPei/Xen.h                       |  45 ++
>  OvmfPkg/XenPlatformPei/XenPlatformPei.inf          | 110 +++
>  OvmfPkg/XenResetVector/Ia16/Real16ToFlat32.asm     | 133 ++++
>  OvmfPkg/XenResetVector/Ia16/ResetVectorVtf0.asm    |  79 ++
>  OvmfPkg/XenResetVector/Ia32/PageTables64.asm       |  93 +++
>  OvmfPkg/XenResetVector/Ia32/XenPVHMain.asm         |  23 +
>  OvmfPkg/XenResetVector/XenResetVector.inf          |  37 +
>  OvmfPkg/XenResetVector/XenResetVector.nasmb        |  67 ++
>  OvmfPkg/XenTimerLocalApic/Timer.h                  | 191 +++++
>  OvmfPkg/XenTimerLocalApic/XenTimerLocalApic.c      | 386 ++++++++++
>  OvmfPkg/XenTimerLocalApic/XenTimerLocalApic.inf    |  51 ++
>  UefiCpuPkg/Include/Library/LocalApicLib.h          |  40 +
>  .../BaseXApicX2ApicLib/BaseXApicX2ApicLib.c        |  10 +-
>  31 files changed, 5427 insertions(+), 5 deletions(-)
>  create mode 100644 OvmfPkg/Library/XenPciHostBridgeLib/XenPciHostBridge.h
>  create mode 100644 OvmfPkg/Library/XenPciHostBridgeLib/XenPciHostBridgeLib.c
>  create mode 100644 OvmfPkg/Library/XenPciHostBridgeLib/XenPciHostBridgeLib.inf
>  create mode 100644 OvmfPkg/Library/XenPciHostBridgeLib/XenSupport.c
>  create mode 100644 OvmfPkg/XenIoPvhDxe/XenIoPvhDxe.c
>  create mode 100644 OvmfPkg/XenIoPvhDxe/XenIoPvhDxe.inf
>  create mode 100644 OvmfPkg/XenOvmf.dsc
>  create mode 100644 OvmfPkg/XenOvmf.fdf
>  create mode 100644 OvmfPkg/XenPlatformPei/Cmos.c
>  create mode 100644 OvmfPkg/XenPlatformPei/Cmos.h
>  create mode 100644 OvmfPkg/XenPlatformPei/Fv.c
>  create mode 100644 OvmfPkg/XenPlatformPei/MemDetect.c
>  create mode 100644 OvmfPkg/XenPlatformPei/Platform.c
>  create mode 100644 OvmfPkg/XenPlatformPei/Platform.h
>  create mode 100644 OvmfPkg/XenPlatformPei/Xen.c
>  create mode 100644 OvmfPkg/XenPlatformPei/Xen.h
>  create mode 100644 OvmfPkg/XenPlatformPei/XenPlatformPei.inf
>  create mode 100644 OvmfPkg/XenResetVector/Ia16/Real16ToFlat32.asm
>  create mode 100644 OvmfPkg/XenResetVector/Ia16/ResetVectorVtf0.asm
>  create mode 100644 OvmfPkg/XenResetVector/Ia32/PageTables64.asm
>  create mode 100644 OvmfPkg/XenResetVector/Ia32/XenPVHMain.asm
>  create mode 100644 OvmfPkg/XenResetVector/XenResetVector.inf
>  create mode 100644 OvmfPkg/XenResetVector/XenResetVector.nasmb
>  create mode 100644 OvmfPkg/XenTimerLocalApic/Timer.h
>  create mode 100644 OvmfPkg/XenTimerLocalApic/XenTimerLocalApic.c
>  create mode 100644 OvmfPkg/XenTimerLocalApic/XenTimerLocalApic.inf
> 



  parent reply	other threads:[~2017-01-04 19:52 UTC|newest]

Thread overview: 37+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2016-12-08 15:33 [PATCH RFC 00/14] Specific platform to run OVMF in Xen PVH and HVM guests Anthony PERARD
2016-12-08 15:33 ` [PATCH RFC 01/14] OvmfPkg: Create platform XenOvmf Anthony PERARD
2017-01-04 19:14   ` Laszlo Ersek
2016-12-08 15:33 ` [PATCH RFC 02/14] OvmfPkg/XenOvmf: Update debug IO port for Xen Anthony PERARD
2017-01-04 19:23   ` Laszlo Ersek
2016-12-08 15:33 ` [PATCH RFC 03/14] OvmfPkg/XenOvmf.dsc: Introduce XenResetVector Anthony PERARD
2017-01-04 19:49   ` Laszlo Ersek
2017-01-10 15:58     ` Anthony PERARD
2016-12-08 15:33 ` [PATCH RFC 04/14] OvmfPkg: Introduce XenPlatformPei Anthony PERARD
2017-01-05  9:59   ` Laszlo Ersek
2017-01-10 16:08     ` Anthony PERARD
2016-12-08 15:33 ` [PATCH RFC 05/14] OvmfPkg/Library: add XenPciHostBridgeLib Anthony PERARD
2017-01-05 10:15   ` Laszlo Ersek
2016-12-08 15:33 ` [PATCH RFC 06/14] OvmfPkg/XenPlatformPei: Add xen PVH specific code Anthony PERARD
2017-01-05 10:30   ` Laszlo Ersek
2017-01-10 16:18     ` Anthony PERARD
2017-01-10 16:54       ` Laszlo Ersek
2016-12-08 15:33 ` [PATCH RFC 07/14] OvmfPkg/XenResetVector: Add new entry point for Xen PVH Anthony PERARD
2017-01-05 10:36   ` Laszlo Ersek
2016-12-08 15:33 ` [PATCH RFC 08/14] OvmfPkg/PlatformBootManagerLib: Workaround missing PCI bus on " Anthony PERARD
2017-01-05 10:38   ` Laszlo Ersek
2016-12-08 15:33 ` [PATCH RFC 09/14] OvmfPkg/ResetSystemLib: Add missing dependency on PciLib Anthony PERARD
2017-01-05 10:46   ` Laszlo Ersek
2016-12-08 15:33 ` [PATCH RFC 10/14] UefiCpuPkg/BaseXApicX2ApicLib: Fix initialisation on my system and Anthony PERARD
2016-12-09  6:48   ` Kinney, Michael D
2016-12-12 12:38     ` Anthony PERARD
     [not found]     ` <58dbbeb0-f600-ef3f-7f8c-5c110b0aa809@citrix.com>
2016-12-12 12:40       ` [Xen-devel] " Anthony PERARD
2016-12-08 15:33 ` [PATCH RFC 11/14] OvmfPkg/XenOvmf: Adding XenTimerLocalApic Anthony PERARD
2017-01-05 11:26   ` Laszlo Ersek
2016-12-08 15:33 ` [PATCH RFC 12/14] OvmfPkg/PlatformBootManagerLib: Use a Xen console for ConOut/ConIn Anthony PERARD
2017-01-05 16:38   ` Laszlo Ersek
2016-12-08 15:33 ` [PATCH RFC 13/14] OvmfPkg: Introduce XenIoPvhDxe to initialize Grant Tables Anthony PERARD
2017-01-05 16:58   ` Laszlo Ersek
2016-12-08 15:33 ` [PATCH RFC 14/14] XenOvmf: Use a different RTC Anthony PERARD
2017-01-05 17:02   ` Laszlo Ersek
2017-01-04 19:52 ` Laszlo Ersek [this message]
2017-01-10 14:55   ` [PATCH RFC 00/14] Specific platform to run OVMF in Xen PVH and HVM guests Anthony PERARD

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