# HG changeset patch
# User kfraser@xxxxxxxxxxxxxxxxxxxxx
# Date 1171548358 0
# Node ID beab19d957de8677bd6093c317c93e71cc143411
# Parent e253a63651bf9b08045dfb50a5c54f0e0311b8db
linux: e820 handling adjustments
In certain places, machine_e820 should be used rather than e820.
Signed-off-by: Jan Beulich <jbeulich@xxxxxxxxxx>
---
linux-2.6-xen-sparse/arch/i386/kernel/setup-xen.c | 38 ++++++++++++--------
linux-2.6-xen-sparse/arch/x86_64/kernel/e820-xen.c | 11 +++++
linux-2.6-xen-sparse/arch/x86_64/kernel/setup-xen.c | 4 +-
3 files changed, 36 insertions(+), 17 deletions(-)
diff -r e253a63651bf -r beab19d957de
linux-2.6-xen-sparse/arch/i386/kernel/setup-xen.c
--- a/linux-2.6-xen-sparse/arch/i386/kernel/setup-xen.c Thu Feb 15 13:51:25
2007 +0000
+++ b/linux-2.6-xen-sparse/arch/i386/kernel/setup-xen.c Thu Feb 15 14:05:58
2007 +0000
@@ -1034,8 +1034,16 @@ e820_all_mapped(unsigned long s, unsigne
u64 start = s;
u64 end = e;
int i;
+
+#ifndef CONFIG_XEN
for (i = 0; i < e820.nr_map; i++) {
struct e820entry *ei = &e820.map[i];
+#else
+ if (!is_initial_xendomain())
+ return 0;
+ for (i = 0; i < machine_e820.nr_map; ++i) {
+ const struct e820entry *ei = &machine_e820.map[i];
+#endif
if (type && ei->type != type)
continue;
/* is the region (part) in overlap with the current region ?*/
@@ -1505,9 +1513,6 @@ e820_setup_gap(struct e820entry *e820, i
*/
static int __init request_standard_resources(void)
{
-#ifdef CONFIG_XEN
- struct xen_memory_map memmap;
-#endif
int i;
/* Nothing to do if not running in dom0. */
@@ -1516,13 +1521,6 @@ static int __init request_standard_resou
printk("Setting up standard PCI resources\n");
#ifdef CONFIG_XEN
- memmap.nr_entries = E820MAX;
- set_xen_guest_handle(memmap.buffer, machine_e820.map);
-
- if (HYPERVISOR_memory_op(XENMEM_machine_memory_map, &memmap))
- BUG();
- machine_e820.nr_map = memmap.nr_entries;
-
legacy_init_iomem_resources(machine_e820.map, machine_e820.nr_map,
&code_resource, &data_resource);
#else
@@ -1546,12 +1544,22 @@ subsys_initcall(request_standard_resourc
static void __init register_memory(void)
{
-
#ifdef CONFIG_XEN
- e820_setup_gap(machine_e820.map, machine_e820.nr_map);
-#else
- e820_setup_gap(e820.map, e820.nr_map);
-#endif
+ if (is_initial_xendomain()) {
+ struct xen_memory_map memmap;
+
+ memmap.nr_entries = E820MAX;
+ set_xen_guest_handle(memmap.buffer, machine_e820.map);
+
+ if (HYPERVISOR_memory_op(XENMEM_machine_memory_map, &memmap))
+ BUG();
+
+ machine_e820.nr_map = memmap.nr_entries;
+ e820_setup_gap(machine_e820.map, machine_e820.nr_map);
+ }
+ else
+#endif
+ e820_setup_gap(e820.map, e820.nr_map);
}
#ifdef CONFIG_MCA
diff -r e253a63651bf -r beab19d957de
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 Thu Feb 15
13:51:25 2007 +0000
+++ b/linux-2.6-xen-sparse/arch/x86_64/kernel/e820-xen.c Thu Feb 15
14:05:58 2007 +0000
@@ -127,8 +127,19 @@ int __init e820_all_mapped(unsigned long
int __init e820_all_mapped(unsigned long start, unsigned long end, unsigned
type)
{
int i;
+
+#ifndef CONFIG_XEN
for (i = 0; i < e820.nr_map; i++) {
struct e820entry *ei = &e820.map[i];
+#else
+ extern struct e820map machine_e820;
+
+ if (!is_initial_xendomain())
+ return 0;
+ for (i = 0; i < machine_e820.nr_map; i++) {
+ const struct e820entry *ei = &machine_e820.map[i];
+#endif
+
if (type && ei->type != type)
continue;
/* is the region (part) in overlap with the current region ?*/
diff -r e253a63651bf -r beab19d957de
linux-2.6-xen-sparse/arch/x86_64/kernel/setup-xen.c
--- a/linux-2.6-xen-sparse/arch/x86_64/kernel/setup-xen.c Thu Feb 15
13:51:25 2007 +0000
+++ b/linux-2.6-xen-sparse/arch/x86_64/kernel/setup-xen.c Thu Feb 15
14:05:58 2007 +0000
@@ -585,8 +585,6 @@ void __init setup_arch(char **cmdline_p)
void __init setup_arch(char **cmdline_p)
{
#ifdef CONFIG_XEN
- struct xen_memory_map memmap;
-
/* Register a call for panic conditions. */
atomic_notifier_chain_register(&panic_notifier_list, &xen_panic_block);
@@ -895,6 +893,8 @@ void __init setup_arch(char **cmdline_p)
probe_roms();
#ifdef CONFIG_XEN
if (is_initial_xendomain()) {
+ struct xen_memory_map memmap;
+
memmap.nr_entries = E820MAX;
set_xen_guest_handle(memmap.buffer, machine_e820.map);
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