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OBS-URL: https://build.opensuse.org/package/show/openSUSE:Factory/xen?expand=0&rev=1

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2007-01-15 23:42:10 +00:00
committed by Git OBS Bridge
commit 27044d0668
97 changed files with 14401 additions and 0 deletions
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47
xen-lowmem-emergency-pool.diff Normal file
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@@ -0,0 +1,47 @@
Index: xen-unstable/xen/arch/x86/x86_32/mm.c
===================================================================
--- xen-unstable.orig/xen/arch/x86/x86_32/mm.c
+++ xen-unstable/xen/arch/x86/x86_32/mm.c
@@ -62,6 +62,8 @@ l2_pgentry_t *virt_to_xen_l2e(unsigned l
return &idle_pg_table_l2[l2_linear_offset(v)];
}
+extern unsigned long lowmem_emergency_pool_pages;
+
void __init paging_init(void)
{
void *ioremap_pt;
@@ -129,6 +131,20 @@ void __init setup_idle_pagetable(void)
l2e_from_page(virt_to_page(idle_vcpu[0]->domain->
arch.mm_perdomain_pt) + i,
__PAGE_HYPERVISOR);
+
+ /*
+ * Size the lowmem_emergency_pool based on the total memory on the box
+ * This pool is needed only on 32 bit PAE configurations (4g to 16g).
+ */
+ if (lowmem_emergency_pool_pages)
+ return;
+
+ if (total_pages > (4 * 1024 * 1024))
+ lowmem_emergency_pool_pages = 12000;
+ else if (total_pages > (2 * 1024 * 1024))
+ lowmem_emergency_pool_pages = 8000;
+ else if (total_pages > (1 * 1024 * 1024) || max_page >= (1 * 1024 * 1024))
+ lowmem_emergency_pool_pages = 4000;
}
void __init zap_low_mappings(l2_pgentry_t *base)
Index: xen-unstable/xen/common/page_alloc.c
===================================================================
--- xen-unstable.orig/xen/common/page_alloc.c
+++ xen-unstable/xen/common/page_alloc.c
@@ -47,7 +47,7 @@ string_param("badpage", opt_badpage);
* allocation requests. Ordinary requests will not fall back to the
* lowmem emergency pool.
*/
-static unsigned long lowmem_emergency_pool_pages;
+unsigned long lowmem_emergency_pool_pages;
static void parse_lowmem_emergency_pool(char *s)
{
unsigned long long bytes;