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| author | Ian Campbell <ijc@hellion.org.uk> | 2008-02-28 23:16:49 +0000 |
|---|---|---|
| committer | Ingo Molnar <mingo@elte.hu> | 2008-03-04 17:10:12 +0100 |
| commit | 87d034f3139b5f0d93df2ba58f37d6f2c2c7eeb6 (patch) | |
| tree | 07959e3e5cf3865d1cb4645de5bbd906245c9684 /arch | |
| parent | 7c9e92b6cdc9937eee53600e5d49a25e421463dd (diff) | |
| download | linux-3.10-87d034f3139b5f0d93df2ba58f37d6f2c2c7eeb6.tar.gz linux-3.10-87d034f3139b5f0d93df2ba58f37d6f2c2c7eeb6.tar.bz2 linux-3.10-87d034f3139b5f0d93df2ba58f37d6f2c2c7eeb6.zip | |
x86/xen: fix DomU boot problem
Construct Xen guest e820 map with a hole between 640K-1M.
It's pure luck that Xen kernels have gotten away with it in the past.
The patch below seems like the right thing to do. It certainly boots in
a domU without the DMI problem (without any of the other related patches
such as Alexander's).
Signed-off-by: Ian Campbell <ijc@hellion.org.uk>
Cc: H. Peter Anvin <hpa@zytor.com>
Cc: Jeremy Fitzhardinge <jeremy@goop.org>
Tested-by: Mark McLoughlin <markmc@redhat.com>
Acked-by: Mark McLoughlin <markmc@redhat.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Acked-by: Thomas Gleixner <tglx@linutronix.de>
Diffstat (limited to 'arch')
| -rw-r--r-- | arch/x86/xen/setup.c | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/arch/x86/xen/setup.c b/arch/x86/xen/setup.c index 3bad4773a2f..2341492bf7a 100644 --- a/arch/x86/xen/setup.c +++ b/arch/x86/xen/setup.c @@ -38,7 +38,8 @@ char * __init xen_memory_setup(void) unsigned long max_pfn = xen_start_info->nr_pages; e820.nr_map = 0; - add_memory_region(0, PFN_PHYS(max_pfn), E820_RAM); + add_memory_region(0, LOWMEMSIZE(), E820_RAM); + add_memory_region(HIGH_MEMORY, PFN_PHYS(max_pfn)-HIGH_MEMORY, E820_RAM); return "Xen"; } |