diff options
author | Keir Fraser <keir.fraser@citrix.com> | 2009-06-18 10:31:17 +0100 |
---|---|---|
committer | Keir Fraser <keir.fraser@citrix.com> | 2009-06-18 10:31:17 +0100 |
commit | 55f3362de4f5ef0534944e688930ae72eed15782 (patch) | |
tree | adbea1ea6fa0085b5f3495b3fee61eeb1d6a9af9 /buildconfigs | |
parent | c92018768b91b5250bb41fbc0e29e21f86b89ac2 (diff) | |
download | xen-55f3362de4f5ef0534944e688930ae72eed15782.tar.gz xen-55f3362de4f5ef0534944e688930ae72eed15782.tar.bz2 xen-55f3362de4f5ef0534944e688930ae72eed15782.zip |
x86-64: do not pass unmanageable amounts of memory to Dom0
Due to address space restrictions it is not possible to successfully
pass more than about 500Gb to a Linux Dom0 unless its kernel specifies
a non-default phys-to-machine map location via XEN_ELFNOTE_INIT_P2M.
For non-Linux Dom0 kernels I can't say whether the limit could be set
to close to 1Tb, but since passing such huge amounts of memory isn't
very useful anyway (and can be enforced via dom0_mem=3D), the patch
doesn't attempt to guess the kernel type and restricts the memory
amount in all cases.
Signed-off-by: Jan Beulich <jbeulich@novell.com>
Diffstat (limited to 'buildconfigs')
0 files changed, 0 insertions, 0 deletions