diff options
| author |   Dave Hansen <dave.hansen@linux.intel.com> | 2014-09-18 12:56:06 -0700 |
|---|---|---|
| committer |   Ingo Molnar <mingo@kernel.org> | 2014-09-19 12:48:02 +0200 |
| commit | beb9147e95a75f41c984d7235cf6d59f3ca2d5db (patch) | |
| tree | d1cc1f24978e29bb2c51149cfe8cc6a6df854971 /mm/page_alloc.c | |
| parent | x86/mm, hibernate: Do not assume the first e820 area to be RAM (diff) | |
| download | linux-dev-beb9147e95a75f41c984d7235cf6d59f3ca2d5db.tar.xz linux-dev-beb9147e95a75f41c984d7235cf6d59f3ca2d5db.zip | |
x86/mm: Update memory map description to list hypervisor-reserved area
Peter Anvin says:
> 0xffff880000000000 is the lowest usable address because we have
> agreed to leave 0xffff800000000000-0xffff880000000000 for the
> hypervisor or other non-OS uses.
Let's call this out in the documentation.
This came up during the kernel address sanitizer discussions
where it was proposed to use this area for other kernel things.
Signed-off-by: Dave Hansen <dave.hansen@linux.intel.com>
Cc: Andrey Ryabinin <ryabinin.a.a@gmail.com>
Cc: Dmitry Vyukov <dvyukov@google.com>
Link: http://lkml.kernel.org/r/20140918195606.841389D2@viggo.jf.intel.com
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Diffstat (limited to 'mm/page_alloc.c')
0 files changed, 0 insertions, 0 deletions