# HG changeset patch
# User Ian.Campbell@xxxxxxxxxxxxx
# Node ID 49bb240a05eef940cdcf15fe9265070acb72832d
# Parent 14717dedba028c7e98bff1f67c6e9e25b42b5661
Re-order code in preparation for future patches.
There is no change to the functions which have moved.
Signed-off-by: Ian Campbell <ian.campbell@xxxxxxxxxxxxx>
---
linux-2.6-xen-sparse/arch/i386/kernel/setup-xen.c | 40 ++--
linux-2.6-xen-sparse/arch/x86_64/kernel/e820-xen.c | 175 ++++++++++-----------
2 files changed, 108 insertions(+), 107 deletions(-)
diff -r 14717dedba02 -r 49bb240a05ee
linux-2.6-xen-sparse/arch/i386/kernel/setup-xen.c
--- a/linux-2.6-xen-sparse/arch/i386/kernel/setup-xen.c Sun May 21 20:15:58
2006 +0100
+++ b/linux-2.6-xen-sparse/arch/i386/kernel/setup-xen.c Mon May 22 09:21:01
2006 +0100
@@ -399,6 +399,26 @@ start_info_t *xen_start_info;
start_info_t *xen_start_info;
EXPORT_SYMBOL(xen_start_info);
+static void __init add_memory_region(unsigned long long start,
+ unsigned long long size, int type)
+{
+ int x;
+
+ if (!efi_enabled) {
+ x = e820.nr_map;
+
+ if (x == E820MAX) {
+ printk(KERN_ERR "Ooops! Too many entries in the memory
map!\n");
+ return;
+ }
+
+ e820.map[x].addr = start;
+ e820.map[x].size = size;
+ e820.map[x].type = type;
+ e820.nr_map++;
+ }
+} /* add_memory_region */
+
static void __init limit_regions(unsigned long long size)
{
unsigned long long current_addr = 0;
@@ -443,26 +463,6 @@ static void __init limit_regions(unsigne
return;
}
}
-
-static void __init add_memory_region(unsigned long long start,
- unsigned long long size, int type)
-{
- int x;
-
- if (!efi_enabled) {
- x = e820.nr_map;
-
- if (x == E820MAX) {
- printk(KERN_ERR "Ooops! Too many entries in the memory
map!\n");
- return;
- }
-
- e820.map[x].addr = start;
- e820.map[x].size = size;
- e820.map[x].type = type;
- e820.nr_map++;
- }
-} /* add_memory_region */
#define E820_DEBUG 1
diff -r 14717dedba02 -r 49bb240a05ee
linux-2.6-xen-sparse/arch/x86_64/kernel/e820-xen.c
--- a/linux-2.6-xen-sparse/arch/x86_64/kernel/e820-xen.c Sun May 21
20:15:58 2006 +0100
+++ b/linux-2.6-xen-sparse/arch/x86_64/kernel/e820-xen.c Mon May 22
09:21:01 2006 +0100
@@ -33,38 +33,21 @@ unsigned long pci_mem_start = 0xaeedbabe
*/
unsigned long end_pfn;
EXPORT_SYMBOL(end_pfn);
-unsigned long end_user_pfn = MAXMEM>>PAGE_SHIFT;
-unsigned long end_pfn_map;
-
-/*
- * Add a memory region to the kernel e820 map.
- */
-void __init add_memory_region(unsigned long start, unsigned long size, int
type)
-{
- int x = e820.nr_map;
-
- if (x == E820MAX) {
- printk(KERN_ERR "Ooops! Too many entries in the memory map!\n");
- return;
- }
-
- e820.map[x].addr = start;
- e820.map[x].size = size;
- e820.map[x].type = type;
- e820.nr_map++;
-}
-
-#ifndef CONFIG_XEN
/*
* end_pfn only includes RAM, while end_pfn_map includes all e820 entries.
* The direct mapping extends to end_pfn_map, so that we can directly access
* apertures, ACPI and other tables without having to play with fixmaps.
*/
+unsigned long end_pfn_map;
/*
* Last pfn which the user wants to use.
*/
+unsigned long end_user_pfn = MAXMEM>>PAGE_SHIFT;
+
+#ifndef CONFIG_XEN
+
extern struct resource code_resource, data_resource;
@@ -276,7 +259,90 @@ void __init e820_reserve_resources(void)
}
}
}
+#else
+void __init e820_reserve_resources(void)
+{
+ dom0_op_t op;
+ struct dom0_memory_map_entry *map;
+ unsigned long gapstart, gapsize, round, last;
+ int i, found = 0;
+
+ if (!(xen_start_info->flags & SIF_INITDOMAIN))
+ return;
+
+ map = alloc_bootmem_low_pages(PAGE_SIZE);
+ op.cmd = DOM0_PHYSICAL_MEMORY_MAP;
+ set_xen_guest_handle(op.u.physical_memory_map.memory_map, map);
+ op.u.physical_memory_map.max_map_entries =
+ PAGE_SIZE / sizeof(struct dom0_memory_map_entry);
+ BUG_ON(HYPERVISOR_dom0_op(&op));
+
+ last = 0x100000000ULL;
+ gapstart = 0x10000000;
+ gapsize = 0x400000;
+
+ for (i = op.u.physical_memory_map.nr_map_entries - 1; i >= 0; i--) {
+ struct resource *res;
+
+ if ((last > map[i].end) && ((last - map[i].end) > gapsize)) {
+ gapsize = last - map[i].end;
+ gapstart = map[i].end;
+ found = 1;
+ }
+ if (map[i].start < last)
+ last = map[i].start;
+
+ if (map[i].end > 0x100000000ULL)
+ continue;
+ res = alloc_bootmem_low(sizeof(struct resource));
+ res->name = map[i].is_ram ? "System RAM" : "reserved";
+ res->start = map[i].start;
+ res->end = map[i].end - 1;
+ res->flags = IORESOURCE_MEM | IORESOURCE_BUSY;
+ request_resource(&iomem_resource, res);
+ }
+
+ free_bootmem(__pa(map), PAGE_SIZE);
+
+ if (!found) {
+ gapstart = HYPERVISOR_memory_op(XENMEM_maximum_ram_page, NULL);
+ gapstart = (gapstart << PAGE_SHIFT) + 1024*1024;
+ printk(KERN_ERR "PCI: Warning: Cannot find a gap in the 32bit
address range\n"
+ KERN_ERR "PCI: Unassigned devices with 32bit resource
registers may break!\n");
+ }
+
+ /*
+ * See how much we want to round up: start off with
+ * rounding to the next 1MB area.
+ */
+ round = 0x100000;
+ while ((gapsize >> 4) > round)
+ round += round;
+ /* Fun with two's complement */
+ pci_mem_start = (gapstart + round) & -round;
+
+ printk(KERN_INFO "Allocating PCI resources starting at %lx (gap:
%lx:%lx)\n",
+ pci_mem_start, gapstart, gapsize);
+}
#endif /* CONFIG_XEN */
+
+/*
+ * Add a memory region to the kernel e820 map.
+ */
+void __init add_memory_region(unsigned long start, unsigned long size, int
type)
+{
+ int x = e820.nr_map;
+
+ if (x == E820MAX) {
+ printk(KERN_ERR "Ooops! Too many entries in the memory map!\n");
+ return;
+ }
+
+ e820.map[x].addr = start;
+ e820.map[x].size = size;
+ e820.map[x].type = type;
+ e820.nr_map++;
+}
void __init e820_print_map(char *who)
{
@@ -588,71 +654,6 @@ e820_hole_size(unsigned long start_pfn,
return 0;
}
-void __init e820_reserve_resources(void)
-{
- dom0_op_t op;
- struct dom0_memory_map_entry *map;
- unsigned long gapstart, gapsize, round, last;
- int i, found = 0;
-
- if (!(xen_start_info->flags & SIF_INITDOMAIN))
- return;
-
- map = alloc_bootmem_low_pages(PAGE_SIZE);
- op.cmd = DOM0_PHYSICAL_MEMORY_MAP;
- set_xen_guest_handle(op.u.physical_memory_map.memory_map, map);
- op.u.physical_memory_map.max_map_entries =
- PAGE_SIZE / sizeof(struct dom0_memory_map_entry);
- BUG_ON(HYPERVISOR_dom0_op(&op));
-
- last = 0x100000000ULL;
- gapstart = 0x10000000;
- gapsize = 0x400000;
-
- for (i = op.u.physical_memory_map.nr_map_entries - 1; i >= 0; i--) {
- struct resource *res;
-
- if ((last > map[i].end) && ((last - map[i].end) > gapsize)) {
- gapsize = last - map[i].end;
- gapstart = map[i].end;
- found = 1;
- }
- if (map[i].start < last)
- last = map[i].start;
-
- if (map[i].end > 0x100000000ULL)
- continue;
- res = alloc_bootmem_low(sizeof(struct resource));
- res->name = map[i].is_ram ? "System RAM" : "reserved";
- res->start = map[i].start;
- res->end = map[i].end - 1;
- res->flags = IORESOURCE_MEM | IORESOURCE_BUSY;
- request_resource(&iomem_resource, res);
- }
-
- free_bootmem(__pa(map), PAGE_SIZE);
-
- if (!found) {
- gapstart = HYPERVISOR_memory_op(XENMEM_maximum_ram_page, NULL);
- gapstart = (gapstart << PAGE_SHIFT) + 1024*1024;
- printk(KERN_ERR "PCI: Warning: Cannot find a gap in the 32bit
address range\n"
- KERN_ERR "PCI: Unassigned devices with 32bit resource
registers may break!\n");
- }
-
- /*
- * See how much we want to round up: start off with
- * rounding to the next 1MB area.
- */
- round = 0x100000;
- while ((gapsize >> 4) > round)
- round += round;
- /* Fun with two's complement */
- pci_mem_start = (gapstart + round) & -round;
-
- printk(KERN_INFO "Allocating PCI resources starting at %lx (gap:
%lx:%lx)\n",
- pci_mem_start, gapstart, gapsize);
-}
-
#endif
void __init parse_memopt(char *p, char **from)
_______________________________________________
Xen-changelog mailing list
Xen-changelog@xxxxxxxxxxxxxxxxxxx
http://lists.xensource.com/xen-changelog
|
Home