[Xen-devel] [PATCH v2 0/3] xen/x86: support setting dom0_mem depending on host size

[Juergen Gross <jgross@xxxxxxxx>]

Setting the memory size of dom0 on a server for the non autoballooning
case requires always specification of a boot parameter today. The value
to set will depend mostly on the host memory size.

In order to support that scenario add the possibility to set dom0_mem
depending on the amount of physical memory by allowing to specify a
percentage of host memory (e.g. 10%) with an offset (like 1G+10%).

To make it easy for a distributor to use such a setting as the default
make the standard setting for dom0_mem configurable via Kconfig.

Changes since V1:
- replaced old patch 1 by new one
- rewritten patch 2 according to remarks by Jan Beulich
- changed patch 3 to allow config item on arm, too

Juergen Gross (3):
  xen: introduce parse_size_and_unit_or_int
  xen/x86: add dom0 memory sizing variants
  xen: add CONFIG item for default dom0 memory size

 docs/misc/xen-command-line.markdown |  19 ++++--
 xen/arch/arm/domain_build.c         |   7 +++
 xen/arch/x86/dom0_build.c           | 112 +++++++++++++++++++++++++++---------
 xen/common/Kconfig                  |  13 +++++
 xen/common/lib.c                    |  11 +++-
 xen/include/xen/lib.h               |   2 +
 6 files changed, 130 insertions(+), 34 deletions(-)

-- 
2.16.4


_______________________________________________
Xen-devel mailing list
Xen-devel@xxxxxxxxxxxxxxxxxxxx
https://lists.xenproject.org/mailman/listinfo/xen-devel