linux/arch/x86/xen
David Vrabel 83d51ab473 xen/setup: update VA mapping when releasing memory during setup
In xen_memory_setup(), if a page that is being released has a VA
mapping this must also be updated.  Otherwise, the page will be not
released completely -- it will still be referenced in Xen and won't be
freed util the mapping is removed and this prevents it from being
reallocated at a different PFN.

This was already being done for the ISA memory region in
xen_ident_map_ISA() but on many systems this was omitting a few pages
as many systems marked a few pages below the ISA memory region as
reserved in the e820 map.

This fixes errors such as:

(XEN) page_alloc.c:1148:d0 Over-allocation for domain 0: 2097153 > 2097152
(XEN) memory.c:133:d0 Could not allocate order=0 extent: id=0 memflags=0 (0 of 17)

Signed-off-by: David Vrabel <david.vrabel@citrix.com>
Signed-off-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
2012-05-07 15:32:24 -04:00
..
debugfs.c switch debugfs to umode_t 2012-01-03 22:54:56 -05:00
debugfs.h switch debugfs to umode_t 2012-01-03 22:54:56 -05:00
enlighten.c xen/setup: update VA mapping when releasing memory during setup 2012-05-07 15:32:24 -04:00
grant-table.c Merge commit 'v3.2-rc3' into stable/for-linus-3.3 2011-12-20 17:01:18 -05:00
irq.c xen: use this_cpu_xxx replace percpu_xxx funcs 2012-01-24 12:20:24 -05:00
Kconfig xen: Make XEN_MAX_DOMAIN_MEMORY have more sensible defaults 2011-11-21 17:14:46 -05:00
Makefile xen/tracing: Fix tracing config option properly 2011-08-22 11:28:33 -04:00
mmu.c xen/setup: update VA mapping when releasing memory during setup 2012-05-07 15:32:24 -04:00
mmu.h xen: make a pile of mmu pvop functions static 2011-05-20 14:25:24 -07:00
multicalls.c xen/multicall: move *idx fields to start of mc_buffer 2011-07-18 15:43:46 -07:00
multicalls.h xen: use this_cpu_xxx replace percpu_xxx funcs 2012-01-24 12:20:24 -05:00
p2m.c xen/p2m: An early bootup variant of set_phys_to_machine 2012-04-06 17:03:06 -04:00
pci-swiotlb-xen.c treewide: fix a few typos in comments 2011-05-10 10:16:21 +02:00
platform-pci-unplug.c xen:pvhvm: Modpost section mismatch fix 2011-07-11 13:37:04 -04:00
setup.c xen/setup: update VA mapping when releasing memory during setup 2012-05-07 15:32:24 -04:00
smp.c xen/smp: Remove unnecessary call to smp_processor_id() 2012-04-06 12:13:30 -04:00
spinlock.c xen: Use this_cpu_ops 2010-12-17 15:07:19 +01:00
suspend.c xen: suspend: add "arch" to pre/post suspend hooks 2011-02-25 16:43:12 +00:00
time.c Merge branch 'upstream/xen-settime' of git://git.kernel.org/pub/scm/linux/kernel/git/jeremy/xen 2011-11-06 20:15:05 -08:00
trace.c xen/trace: Fix compile error when CONFIG_XEN_PRIVILEGED_GUEST is not set 2011-08-05 09:43:02 -04:00
vdso.h
vga.c xen: allow enable use of VGA console on dom0 2011-06-06 11:46:00 -04:00
xen-asm_32.S xen: x86_32: do not enable iterrupts when returning from exception in interrupt context 2011-09-01 12:54:42 -04:00
xen-asm_64.S xen: use iret for return from 64b kernel to 32b usermode 2009-12-03 11:14:54 -08:00
xen-asm.h xen: make direct versions of irq_enable/disable/save/restore to common code 2009-02-04 16:59:04 -08:00
xen-asm.S x86: style cleanups for xen assemblies 2009-02-05 20:25:41 +01:00
xen-head.S x86, asm: Cleanup unnecssary macros in asm-offsets.c 2011-02-25 16:37:32 -08:00
xen-ops.h xen/setup: update VA mapping when releasing memory during setup 2012-05-07 15:32:24 -04:00