Use common help functions to free reserved pages.
Signed-off-by: Jiang Liu jiang@huawei.com
Cc: Koichi Yasutake yasutake.koi...@jp.panasonic.com
---
arch/mn10300/mm/init.c | 23 ++-
1 file changed, 2 insertions(+), 21 deletions(-)
diff --git a/arch/mn10300/mm/init.c
Use common help functions to free reserved pages.
Also include asm/sections.h to avoid local declarations.
Signed-off-by: Jiang Liu jiang@huawei.com
Cc: Jonas Bonn jo...@southpole.se
---
arch/openrisc/mm/init.c | 27 +++
1 file changed, 3 insertions(+), 24
Use common help functions to free reserved pages.
Signed-off-by: Jiang Liu jiang@huawei.com
Cc: James E.J. Bottomley j...@parisc-linux.org
Cc: Helge Deller del...@gmx.de
---
arch/parisc/mm/init.c | 23 ++-
1 file changed, 2 insertions(+), 21 deletions(-)
diff --git
Use common help functions to free reserved pages.
Signed-off-by: Jiang Liu jiang@huawei.com
Cc: Benjamin Herrenschmidt b...@kernel.crashing.org
Cc: Paul Mackerras pau...@samba.org
Cc: Anatolij Gustschin ag...@denx.de
---
arch/powerpc/kernel/crash_dump.c |5 +
Use common help functions to free reserved pages.
Signed-off-by: Jiang Liu jiang@huawei.com
Cc: Martin Schwidefsky schwidef...@de.ibm.com
Cc: Heiko Carstens heiko.carst...@de.ibm.com
---
arch/s390/mm/init.c | 35 ++-
1 file changed, 6 insertions(+), 29
Use common help functions to free reserved pages.
Signed-off-by: Jiang Liu jiang@huawei.com
Cc: Chen Liqin liqin.c...@sunplusct.com
Cc: Lennox Wu lennox...@gmail.com
---
arch/score/mm/init.c | 33 +
1 file changed, 5 insertions(+), 28 deletions(-)
diff
Use common help functions to free reserved pages.
Signed-off-by: Jiang Liu jiang@huawei.com
Acked-by: Paul Mundt let...@linux-sh.org
---
arch/sh/mm/init.c | 26 +++---
1 file changed, 3 insertions(+), 23 deletions(-)
diff --git a/arch/sh/mm/init.c b/arch/sh/mm/init.c
Use common help functions to free reserved pages.
Signed-off-by: Jiang Liu jiang@huawei.com
Acked-by: David S. Miller da...@davemloft.net
Cc: Sam Ravnborg s...@ravnborg.org
---
arch/sparc/kernel/leon_smp.c | 15 +++
arch/sparc/mm/init_32.c | 37
Use common help functions to free reserved pages.
Signed-off-by: Jiang Liu jiang@huawei.com
Cc: Jeff Dike jd...@addtoit.com
---
arch/um/kernel/mem.c | 10 +-
1 file changed, 1 insertion(+), 9 deletions(-)
diff --git a/arch/um/kernel/mem.c b/arch/um/kernel/mem.c
index
Use common help functions to free reserved pages.
Signed-off-by: Jiang Liu jiang@huawei.com
Cc: Thomas Gleixner t...@linutronix.de
Cc: Ingo Molnar mi...@redhat.com
Cc: H. Peter Anvin h...@zytor.com
---
arch/x86/mm/init.c|5 +
arch/x86/mm/init_64.c |5 ++---
2 files changed, 3
Use common help functions to free reserved pages.
Signed-off-by: Jiang Liu jiang@huawei.com
Cc: Chris Zankel ch...@zankel.net
Cc: Max Filippov jcmvb...@gmail.com
---
arch/xtensa/mm/init.c | 21 +++--
1 file changed, 3 insertions(+), 18 deletions(-)
diff --git
Use common help functions to free reserved pages.
Signed-off-by: Jiang Liu jiang@huawei.com
Acked-by: Vineet Gupta vgu...@synopsys.com
Cc: linux-snps-...@vger.kernel.org
Cc: linux-kernel@vger.kernel.org (open list)
---
arch/arc/mm/init.c | 23 ++-
1 file changed, 2
Use common help functions to free reserved pages.
Signed-off-by: Jiang Liu jiang@huawei.com
Cc: James Hogan james.ho...@imgtec.com
Cc: linux-kernel@vger.kernel.org
---
arch/metag/mm/init.c | 21 ++---
1 file changed, 2 insertions(+), 19 deletions(-)
diff --git
Use common help functions to free reserved pages.
Signed-off-by: Jiang Liu jiang@huawei.com
Cc: Eric Biederman ebied...@xmission.com
---
kernel/kexec.c |8 ++--
1 file changed, 2 insertions(+), 6 deletions(-)
diff --git a/kernel/kexec.c b/kernel/kexec.c
index bddd3d7..be95397 100644
Use common help functions to free reserved pages.
Signed-off-by: Jiang Liu jiang@huawei.com
Cc: Guan Xuetao g...@mprc.pku.edu.cn
---
arch/unicore32/mm/init.c | 28 +++-
1 file changed, 3 insertions(+), 25 deletions(-)
diff --git a/arch/unicore32/mm/init.c
Use common help functions to free reserved pages.
Signed-off-by: Jiang Liu jiang@huawei.com
Acked-by: Hans-Christian Egtvedt egtv...@samfundet.no
Cc: Haavard Skinnemoen hskinnem...@gmail.com
---
arch/avr32/mm/init.c | 24 ++--
1 file changed, 2 insertions(+), 22
Use common help functions to free reserved pages.
Signed-off-by: Jiang Liu jiang@huawei.com
Cc: Mark Salter msal...@redhat.com
Cc: Aurelien Jacquiot a-jacqu...@ti.com
---
arch/c6x/mm/init.c | 30 ++
1 file changed, 2 insertions(+), 28 deletions(-)
diff --git
Use common help functions to free reserved pages.
Signed-off-by: Jiang Liu jiang@huawei.com
Cc: Russell King li...@arm.linux.org.uk
Cc: Catalin Marinas catalin.mari...@arm.com
Cc: Will Deacon will.dea...@arm.com
Cc: linux-arm-ker...@lists.infradead.org
Cc: linux-kernel@vger.kernel.org
---
Need to use get_ramdisk_image() with early microcode_updating in other file.
Change it to global.
Also make it to take boot_params pointer, as head_32.S need to access it via
phys address during 32bit flat mode.
Signed-off-by: Yinghai Lu ying...@kernel.org
---
arch/x86/include/asm/setup.h |
Use common get_ramdisk_image() to get ramdisk start phys address.
We need this to get correct ramdisk adress for 64bit bzImage that
initrd can be loaded above 4G by kexec-tools.
Signed-off-by: Yinghai Lu ying...@kernel.org
Cc: Fenghua Yu fenghua...@intel.com
---
To parse srat early, we need to move acpi table probing early.
acpi_initrd_table_override is before acpi table probing. So we need to
move it early too.
Current code acpi_initrd_table_override is after init_mem_mapping and
relocate_initrd(), so it can scan initrd and copy acpi tables with kernel
In 32bit we will find table with phys address during 32bit flat mode
in head_32.S, because at that time we don't need set page table to
access initrd.
For copying we could use early_ioremap() with phys directly before mem mapping
is set.
To keep 32bit and 64bit consistent, use phys_addr for all.
For finding with 32bit, it would be easy to access initrd in 32bit
flat mode, as we don't need to set page table.
That is from head_32.S, and microcode updating already use this trick.
Need to change acpi_initrd_override_find to use phys to access global
variables.
Pass is_phys in the function,
We need to have numa info ready before init_mem_mapping, so we
can call init_mem_mapping per nodes also can trim node mem range to
big alignment.
Current numa parsing need to allocate some buffer and need to be
called after init_mem_mapping.
So try to split parsing numa info to two stages, and
For the separation, we need to set memblock nid later, as it
could change memblock array, and possible doube memblock.memory
array that will need to allocate buffer.
We do not need to use nid in memblock to find out absent pages.
So we can move that numa_meminfo_cover_memory() early.
Also could
We could use numa_meminfo directly instead of memblock nid.
So we could move down set memblock nid and only do it one time
for successful path.
-v2: according to tj, separate moving to another patch.
Signed-off-by: Yinghai Lu ying...@kernel.org
---
arch/x86/mm/numa.c | 30
For the separation, we need to set memblock nid later, as it
could change memblock array, and possible doube memblock.memory
array that will need to allocate buffer.
Only set memblock nid one time for successful path.
Also rename numa_register_memblks to numa_check_memblks()
after move out code
Move node_possible_map handling out of numa_check_memblks to avoid side
changing in numa_check_memblks().
Only set once for successful path instead of resetting in numa_init()
every time.
Suggested-by: Tejun Heo t...@kernel.org
Signed-off-by: Yinghai Lu ying...@kernel.org
---
arch/x86/mm/numa.c
It needs to allocate buffer for new numa_meminfo and distance matrix,
so move it down.
Also we change the behavoir:
before this patch, if user input wrong data in command line, it
will fall back to next numa probing or disabling numa.
after this patch, if user input wrong data in command line, it
We need to handle slit later, as it need to allocate buffer for distance
matrix. Also we do not need SLIT info before init_mem_mapping.
So move SLIT parsing later.
x86_acpi_numa_init become x86_acpi_numa_init_srat/x86_acpi_numa_init_slit.
It should not break ia64 by replacing acpi_numa_init
early_initmem_init() call early_x86_numa_init() to parse numa info early.
Later will call init_mem_mapping for nodes in it.
Signed-off-by: Yinghai Lu ying...@kernel.org
Cc: Pekka Enberg penb...@kernel.org
Cc: Jacob Shin jacob.s...@amd.com
---
arch/x86/include/asm/page_types.h |1 +
Parsing numa info has been separated to two functions now.
early_initmem_info() only parse info in numa_meminfo and
nodes_parsed. still keep numaq, acpi_numa, amd_numa, dummy
fall back sequence working.
SLIT and numa emulation handling are still left in initmem_init().
Call early_initmem_init
Prepare to put page table on local nodes.
Move calling of init_mem_mapping to early_initmem_init.
Rework alloc_low_pages to alloc page table in following order:
BRK, local node, low range
Still only load_cr3 one time, otherwise we would break xen 64bit again.
Signed-off-by: Yinghai Lu
If node with ram is hotplugable, local node mem for page table and vmemmap
should be on that node ram.
This patch is some kind of refreshment of
| commit 1411e0ec3123ae4c4ead6bfc9fe3ee5a3ae5c327
| Date: Mon Dec 27 16:48:17 2010 -0800
|
|x86-64, numa: Put pgtable to local node memory
That
Move node_map_pfn_alignment() to arch/x86/mm as no other user for it.
Will update it to use numa_meminfo instead of memblock.
Signed-off-by: Yinghai Lu ying...@kernel.org
---
arch/x86/mm/numa.c | 50 ++
include/linux/mm.h |1 -
于 2013年03月05日 15:35, Zhang Yanfei 写道:
于 2013年03月02日 16:35, HATAYAMA Daisuke 写道:
Code around /proc/vmcore currently assumes program header table is
next to ELF header. But future change can break the assumption on
kexec-tools and the 1st kernel. To avoid worst case, now refer to
e_phoff member
head64.c could use #PF handler set page table to access initrd before
init mem mapping and initrd relocating.
head_32.S could use 32bit flat mode to access initrd before init mem
mapping initrd relocating.
That make 32bit and 64 bit more consistent.
-v2: use inline function in header file
Current acpi tables in initrd is limited to 10, that is too small.
64 should be good enough as we have 35 sigs and could have several
SSDT.
Two problems in current code prevent us from increasing limit:
1. that cpio file info array is put in stack, as every element is 32
bytes, could run out
Now we have arch_pfn_mapped array, and max_low_pfn_mapped should not
be used anymore.
User should use arch_pfn_mapped or just 1UL(32-PAGE_SHIFT) instead.
Only user is ACPI_INITRD_TABLE_OVERRIDE, and it should not use that,
as later accessing is using early_ioremap(). Change to try to 4G below
One commit that tried to parse SRAT early get reverted before v3.9-rc1.
| commit e8d1955258091e4c92d5a975ebd7fd8a98f5d30f
| Author: Tang Chen tangc...@cn.fujitsu.com
| Date: Fri Feb 22 16:33:44 2013 -0800
|
|acpi, memory-hotplug: parse SRAT before memblock is ready
It broke several things,
于 2013年03月02日 16:36, HATAYAMA Daisuke 写道:
Due to mmap() requirement, we need to copy pages not starting or
ending with page-size aligned address in 2nd kernel and to map them to
user-space.
For example, see the map below:
-0001 : reserved
0001-0009f7ff : System
On Sun, Mar 10, 2013 at 02:27:05PM +0800, Jiang Liu wrote:
Use common help functions to free reserved pages.
Signed-off-by: Jiang Liu jiang@huawei.com
Acked-by: David S. Miller da...@davemloft.net
Cc: Sam Ravnborg s...@ravnborg.org
Acked-by: Sam Ravnborg s...@ravnborg.org
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