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| author | Juergen Gross <jgross@suse.com> | 2015-07-17 06:51:29 +0200 |
|---|---|---|
| committer | David Vrabel <david.vrabel@citrix.com> | 2015-08-20 13:24:20 +0200 |
| commit | 9ddac5b724a9465e27f25a0aa943e92c8341a85b (patch) | |
| tree | db39ade9b9c526d3d31fd09c87e53dd3557fa539 /arch/x86/xen/xen-ops.h | |
| parent | xen: check memory area against e820 map (diff) | |
| download | linux-9ddac5b724a9465e27f25a0aa943e92c8341a85b.tar.xz linux-9ddac5b724a9465e27f25a0aa943e92c8341a85b.zip | |
xen: find unused contiguous memory area
For being able to relocate pre-allocated data areas like initrd or
p2m list it is mandatory to find a contiguous memory area which is
not yet in use and doesn't conflict with the memory map we want to
be in effect.
In case such an area is found reserve it at once as this will be
required to be done in any case.
Signed-off-by: Juergen Gross <jgross@suse.com>
Reviewed-by: David Vrabel <david.vrabel@citrix.com>
Acked-by: Konrad Rzeszutek Wilk <Konrad.wilk@oracle.com>
Signed-off-by: David Vrabel <david.vrabel@citrix.com>
Diffstat (limited to 'arch/x86/xen/xen-ops.h')
| -rw-r--r-- | arch/x86/xen/xen-ops.h | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/arch/x86/xen/xen-ops.h b/arch/x86/xen/xen-ops.h index a4cbb76642d8..c4c3c23597a5 100644 --- a/arch/x86/xen/xen-ops.h +++ b/arch/x86/xen/xen-ops.h @@ -43,6 +43,7 @@ bool __init xen_is_e820_reserved(phys_addr_t start, phys_addr_t size); unsigned long __ref xen_chk_extra_mem(unsigned long pfn); void __init xen_inv_extra_mem(void); void __init xen_remap_memory(void); +phys_addr_t __init xen_find_free_area(phys_addr_t size); char * __init xen_memory_setup(void); char * xen_auto_xlated_memory_setup(void); void __init xen_arch_setup(void); |