8b5d44a5ac
Allow the xen balloon driver to populate its list of extra pages from more than one region of memory. This will allow platforms to provide (for example) a region of low memory and a region of high memory. The maximum possible number of extra regions is 128 (== E820MAX) which is quite large so xen_extra_mem is placed in __initdata. This is safe as both xen_memory_setup() and balloon_init() are in __init. The balloon regions themselves are not altered (i.e., there is still only the one region). Signed-off-by: David Vrabel <david.vrabel@citrix.com> Signed-off-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
19 lines
347 B
C
19 lines
347 B
C
#ifndef _XEN_PAGE_H
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#define _XEN_PAGE_H
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#include <asm/xen/page.h>
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struct xen_memory_region {
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phys_addr_t start;
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phys_addr_t size;
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};
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#define XEN_EXTRA_MEM_MAX_REGIONS 128 /* == E820MAX */
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extern __initdata
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struct xen_memory_region xen_extra_mem[XEN_EXTRA_MEM_MAX_REGIONS];
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extern unsigned long xen_released_pages;
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#endif /* _XEN_PAGE_H */
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