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Re: [Xen-devel] [PATCH v7 00/11] grub-xen: support booting huge pv-domai
From: |
Juergen Gross |
Subject: |
Re: [Xen-devel] [PATCH v7 00/11] grub-xen: support booting huge pv-domains |
Date: |
Mon, 4 Jul 2016 12:33:17 +0200 |
User-agent: |
Mozilla/5.0 (X11; Linux x86_64; rv:38.0) Gecko/20100101 Thunderbird/38.7.0 |
On 12/05/16 07:35, Juergen Gross wrote:
> Gentle ping...
Okay, now 4 months since posting the last version. Could it please be
included in a more timely manner?
Juergen
>
> On 03/03/16 10:38, Juergen Gross wrote:
>> The Xen hypervisor supports starting a dom0 with large memory (up to
>> the TB range) by not including the initrd and p2m list in the initial
>> kernel mapping. Especially the p2m list can grow larger than the
>> available virtual space in the initial mapping.
>>
>> The started kernel is indicating the support of each feature via
>> elf notes.
>>
>> This series enables grub-xen to do the same as the hypervisor.
>>
>> Tested with:
>> - 32 bit domU (kernel not supporting unmapped initrd)
>> - 32 bit domU (kernel supporting unmapped initrd)
>> - 1 GB 64 bit domU (kernel supporting unmapped initrd, not p2m)
>> - 1 GB 64 bit domU (kernel supporting unmapped initrd and p2m)
>> - 900GB 64 bit domU (kernel supporting unmapped initrd and p2m)
>>
>> Changes in V7:
>> - patch 9: set initrd size once instead of in if and else clause as requested
>> by Daniel Kiper
>> - patch 10: add GRUB_PACKED attribute to structure, drop alignments in
>> assembly
>> files as requested by Daniel Kiper
>>
>> Changes in V6:
>> - patch 9: rename grub_xen_alloc_final() as requested by Daniel Kiper
>>
>> Changes in V5:
>> - patch 2: set grub_errno to GRUB_ERR_NONE to avoid false error reports as
>> requested by Daniel Kiper
>> - patch 9: let call grub_xen_alloc_final() all subfunctions unconditionally
>> and let them decide whether they need to do anything as suggested by
>> Daniel Kiper
>>
>> Changes in V4:
>> - split patch 1 into two patches as requested by Daniel Kiper
>> - patch 9 (was 8): rename grub_xen_alloc_end() as requested by Daniel Kiper
>> - patch 10 (was 9): align variables in assembly sources,
>> use separate structure define as requested by Daniel Kiper
>>
>> Changes in V3:
>> - added new patch 1 (free memory in case of error) as requested by
>> Daniel Kiper
>> - added new patch 2 (avoid global variables) as requested by Daniel Kiper
>> - added new patch 3 (use constants for elf notes) as requested by Daniel
>> Kiper
>> - added new patch 4 (sync with new Xen headers) in order to use constants
>> in assembly code
>> - modified patch 9 (was patch 5) to use constants instead of numbers as
>> requested by Daniel Kiper
>>
>> Changes in V2:
>> - rebased patch 5 to current master
>>
>> Juergen Gross (11):
>> xen: make xen loader callable multiple times
>> xen: avoid memleaks on error
>> xen: reduce number of global variables in xen loader
>> xen: add elfnote.h to avoid using numbers instead of constants
>> xen: synchronize xen header
>> xen: factor out p2m list allocation into separate function
>> xen: factor out allocation of special pages into separate function
>> xen: factor out allocation of page tables into separate function
>> xen: add capability to load initrd outside of initial mapping
>> xen: modify page table construction
>> xen: add capability to load p2m list outside of kernel mapping
>>
>> grub-core/lib/i386/xen/relocator.S | 87 ++--
>> grub-core/lib/x86_64/xen/relocator.S | 134 +++---
>> grub-core/lib/xen/relocator.c | 28 +-
>> grub-core/loader/i386/xen.c | 778
>> +++++++++++++++++++++++------------
>> grub-core/loader/i386/xen_fileXX.c | 45 +-
>> include/grub/i386/memory.h | 7 +
>> include/grub/xen/relocator.h | 6 +-
>> include/grub/xen_file.h | 3 +
>> include/xen/arch-x86/xen-x86_32.h | 22 +-
>> include/xen/arch-x86/xen-x86_64.h | 8 +-
>> include/xen/elfnote.h | 281 +++++++++++++
>> include/xen/xen.h | 125 ++++--
>> 12 files changed, 1076 insertions(+), 448 deletions(-)
>> create mode 100644 include/xen/elfnote.h
>>
>
>
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- Re: [Xen-devel] [PATCH v7 00/11] grub-xen: support booting huge pv-domains,
Juergen Gross <=