The patch titled
Fix BIOS-e820 end address
has been added to the -mm tree. Its filename is
fix-bios-e820-end-address.patch
*** Remember to use Documentation/SubmitChecklist when testing your code ***
See http://www.zip.com.au/~akpm/linux/patches/stuff/added-to-mm.txt to find
out what to do about this
------------------------------------------------------
Subject: Fix BIOS-e820 end address
From: "Keshavamurthy, Anil S" <anil.s.keshavamurthy@xxxxxxxxx>
--snip of boot message--
BIOS-provided physical RAM map:
BIOS-e820: 0000000000000000 - 00000000000a0000 (usable)
BIOS-e820: 00000000000f0000 - 0000000000100000 (reserved)
BIOS-e820: 0000000000100000 - 000000007fe8cc00 (usable)
----end snip---
As you see from above the address 0000000000100000 is both
shown as reserved and usable which is confusing.
This patch fixes the BIOS-e820 end address.
Signed-off-by: Anil S Keshavamurthy <anil.s.keshavamurthy@xxxxxxxxx>
Cc: "Siddha, Suresh B" <suresh.b.siddha@xxxxxxxxx>
Cc: Andi Kleen <ak@xxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
arch/i386/kernel/e820.c | 2 +-
arch/x86_64/kernel/e820.c | 2 +-
2 files changed, 2 insertions(+), 2 deletions(-)
diff -puN arch/i386/kernel/e820.c~fix-bios-e820-end-address arch/i386/kernel/e820.c
--- a/arch/i386/kernel/e820.c~fix-bios-e820-end-address
+++ a/arch/i386/kernel/e820.c
@@ -753,7 +753,7 @@ void __init print_memory_map(char *who)
for (i = 0; i < e820.nr_map; i++) {
printk(" %s: %016Lx - %016Lx ", who,
e820.map[i].addr,
- e820.map[i].addr + e820.map[i].size);
+ e820.map[i].addr + e820.map[i].size - 1);
switch (e820.map[i].type) {
case E820_RAM: printk("(usable)\n");
break;
diff -puN arch/x86_64/kernel/e820.c~fix-bios-e820-end-address arch/x86_64/kernel/e820.c
--- a/arch/x86_64/kernel/e820.c~fix-bios-e820-end-address
+++ a/arch/x86_64/kernel/e820.c
@@ -368,7 +368,7 @@ void __init e820_print_map(char *who)
for (i = 0; i < e820.nr_map; i++) {
printk(KERN_INFO " %s: %016Lx - %016Lx ", who,
(unsigned long long) e820.map[i].addr,
- (unsigned long long) (e820.map[i].addr + e820.map[i].size));
+ (unsigned long long) (e820.map[i].addr + e820.map[i].size - 1));
switch (e820.map[i].type) {
case E820_RAM: printk("(usable)\n");
break;
_
Patches currently in -mm which might be from anil.s.keshavamurthy@xxxxxxxxx are
optimize-x86-page-faults-like-all-other-achitectures-and-kill-notifier-cruft.patch
fix-bios-e820-end-address.patch
kprobes-support-kretprobe-blacklist.patch
intel-iommu-dmar-detection-and-parsing-logic.patch
intel-iommu-pci-generic-helper-function.patch
intel-iommu-clflush_cache_range-now-takes-size-param.patch
intel-iommu-iova-allocation-and-management-routines.patch
intel-iommu-intel-iommu-driver.patch
intel-iommu-avoid-memory-allocation-failures-in-dma-map-api-calls.patch
intel-iommu-intel-iommu-cmdline-option-forcedac.patch
intel-iommu-dmar-fault-handling-support.patch
intel-iommu-iommu-gfx-workaround.patch
intel-iommu-iommu-gfx-workaround-kconfig-fix.patch
intel-iommu-iommu-floppy-workaround.patch
intel-iommu-iommu-floppy-workaround-kconfig-fix.patch
intel-iommu-optimize-sg-map-unmap-calls.patch
-
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