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| author | David Vrabel <dvrabel@cantab.net> | 2012-05-03 16:15:42 +0100 |
|---|---|---|
| committer | Konrad Rzeszutek Wilk <konrad.wilk@oracle.com> | 2012-05-07 15:32:24 -0400 |
| commit | 83d51ab473dddde7df858015070ed22b84ebe9a9 (patch) | |
| tree | c02be9696877ae5d7c00a524ae4daf2f99c181f1 /arch/x86/xen/xen-ops.h | |
| parent | 96dc08b35c4af8cb5810450602590706f2593a5f (diff) | |
| download | blackbird-op-linux-83d51ab473dddde7df858015070ed22b84ebe9a9.tar.gz blackbird-op-linux-83d51ab473dddde7df858015070ed22b84ebe9a9.zip | |
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>
Diffstat (limited to 'arch/x86/xen/xen-ops.h')
| -rw-r--r-- | arch/x86/xen/xen-ops.h | 1 |
1 files changed, 0 insertions, 1 deletions
diff --git a/arch/x86/xen/xen-ops.h b/arch/x86/xen/xen-ops.h index b095739ccd4c..506fa08d934a 100644 --- a/arch/x86/xen/xen-ops.h +++ b/arch/x86/xen/xen-ops.h @@ -28,7 +28,6 @@ void xen_setup_shared_info(void); void xen_build_mfn_list_list(void); void xen_setup_machphys_mapping(void); pgd_t *xen_setup_kernel_pagetable(pgd_t *pgd, unsigned long max_pfn); -void xen_ident_map_ISA(void); void xen_reserve_top(void); extern unsigned long xen_max_p2m_pfn; |
