Re: [PATCH v3 0/4] arm64: Add Xen boot support (via fdt)

[Fu Wei]

Hi Stefano,

I have tried my grub on Foundation model, but I did not get this
error, I guess that is the UEFI problem ?

On 1 October 2015 at 00:00, Stefano Stabellini
<address@hidden> wrote:
> Hi Fu,
>
> I backported your patches to the CentOS aarch64 grub2 rpm.  I am testing
> it on X-Gene with EFI firmware. It works fine when booting Xen, but
> booting native kernels (no Xen) doesn't work anymore. Grub prints
>
> error: out of memory.
>
> Press any key to continue...
>
> grub is still able to continue and load Linux, but then the kernel fails
> to boot with "Cannot open root device", even though the grub config is
> still same as before and the rootfs (which is xfs) hasn't changed.
> Reverting the patches solved the problem.
>
> Do you have any ideas on what is causing the issue? Maybe the initramfs
> hasn't been properly loaded?
>
>
> Thanks,
>
> Stefano
>
>
> On Tue, 8 Sep 2015, Fu Wei wrote:
>> Hi Vladimir,
>>
>> Do you have any suggestion on this patchset?
>> Do I need to improve anything?
>>
>> Great thanks for your help.
>>
>> On 4 August 2015 at 16:34, Fu Wei <address@hidden> wrote:
>> > Hi Vladimir,
>> >
>> > this patchset follows all your comment of v2 patchset.
>> > Do you have any suggestion on this patchset?
>> >
>> > Great thanks for your help.
>> >
>> >
>> > On 23 July 2015 at 13:16,  <address@hidden> wrote:
>> >> From: Fu Wei <address@hidden>
>> >>
>> >>   - This adds support for the Xen boot on ARM specification for arm64.
>> >>
>> >>   - Add and export some accessor functions of "loaded" flag and
>> >>     grub_linux_get_fdt function in include/grub/arm64/linux.h for xen 
>> >> boot.
>> >>
>> >>   - Introduce xen_hypervisor, xen_linux, xen_initrd and xen_xsm
>> >>     to load different binaries for xen boot.
>> >>     Introduce xen_module to load common or custom module for xen boot.
>> >>
>> >>   - This Xen boot support is a separated  module for aarch64,
>> >>     but reuse the existing code of devicetree in linux module.
>> >>
>> >>   - Add the support of xen_hypervisor, xen_linux and xen_initrd
>> >>     in util/grub.d/20_linux_xen.in
>> >>
>> >>   - Add the introduction of all xen boot commands in docs/grub.texi
>> >>
>> >>   - The example of this support is <How to boot Xen with GRUB on AArch64 
>> >> the Foundation FVP model>
>> >>     
>> >> https://wiki.linaro.org/LEG/Engineering/Grub2/Xen_booting_on_Foundation_FVP_model_by_GRUB
>> >>
>> >> Changelog:
>> >> v3: create separate module for xen boot: xen_boot
>> >>     create separate commands for different types of module
>> >>     delete order-dependent for commands of xen module
>> >>     simplify the code
>> >>
>> >> v2: remove the patches which have been accepted.
>> >>     according to Vladimir's suggestion, change the command manes
>> >>     and relevant code:
>> >>         multiboot-->xen_hypervisor
>> >>         module-->xen_module
>> >>     improve the option parsing support for xen_hypervisor/xen_module 
>> >> commands.
>> >>     add a patch for adding xen_hypervisor/xen_module support
>> >>     in util/grub.d/20_linux_xen.in.
>> >>     update docs/grub.texi patch for the new command names.
>> >>
>> >> v1: The first version upstream patchset to grub-devel mailing list
>> >>
>> >>
>> >> Fu Wei (4):
>> >>   arm64: Add and export some accessor functions for xen boot
>> >>   arm64: Add xen_boot module file
>> >>   * util/grub.d/20_linux_xen.in: Add support of the XEN boot on aarch64
>> >>   arm64: Add the introduction of xen boot commands in docs/grub.texi
>> >>
>> >>  docs/grub.texi                    |  56 ++++
>> >>  grub-core/Makefile.core.def       |   7 +
>> >>  grub-core/loader/arm64/linux.c    |  13 +
>> >>  grub-core/loader/arm64/xen_boot.c | 685 
>> >> ++++++++++++++++++++++++++++++++++++++
>> >>  include/grub/arm64/linux.h        |   6 +-
>> >>  util/grub.d/20_linux_xen.in       |  16 +-
>> >>  6 files changed, 779 insertions(+), 4 deletions(-)
>> >>  create mode 100644 grub-core/loader/arm64/xen_boot.c
>> >>
>> >> --
>> >> 1.8.3.1
>> >>
>> >
>> >
>> >
>> > --
>> > Best regards,
>> >
>> > Fu Wei
>> > Software Engineer
>> > Red Hat Software (Beijing) Co.,Ltd.Shanghai Branch
>> > Ph: +86 21 61221326(direct)
>> > Ph: +86 186 2020 4684 (mobile)
>> > Room 1512, Regus One Corporate Avenue,Level 15,
>> > One Corporate Avenue,222 Hubin Road,Huangpu District,
>> > Shanghai,China 200021
>>
>>
>>
>> --
>> Best regards,
>>
>> Fu Wei
>> Software Engineer
>> Red Hat Software (Beijing) Co.,Ltd.Shanghai Branch
>> Ph: +86 21 61221326(direct)
>> Ph: +86 186 2020 4684 (mobile)
>> Room 1512, Regus One Corporate Avenue,Level 15,
>> One Corporate Avenue,222 Hubin Road,Huangpu District,
>> Shanghai,China 200021
>>



-- 
Best regards,

Fu Wei
Software Engineer
Red Hat Software (Beijing) Co.,Ltd.Shanghai Branch
Ph: +86 21 61221326(direct)
Ph: +86 186 2020 4684 (mobile)
Room 1512, Regus One Corporate Avenue,Level 15,
One Corporate Avenue,222 Hubin Road,Huangpu District,
Shanghai,China 200021