The last version is here:
http://lists.nongnu.org/archive/html/qemu-devel/2014-04/msg00018.html
ChangLog:
Changes from v7 to v8:
1. add a patch to fix doc of dump-guest-memory
Qiao Nuohan (2):
HMP: fix doc of dump-guest-memory
HMP: support specifying dump format for dump-guest-memory
hmp
this feature is here:
http://lists.nongnu.org/archive/html/qemu-devel/2014-03/msg04235.html
Signed-off-by: Qiao Nuohan qiaonuo...@cn.fujitsu.com
Suggested-by: Christian Borntraeger borntrae...@de.ibm.com
---
hmp-commands.hx | 13 ++---
hmp.c | 25 ++---
2 files
Signed-off-by: Qiao Nuohan qiaonuo...@cn.fujitsu.com
---
hmp-commands.hx | 19 ++-
1 file changed, 10 insertions(+), 9 deletions(-)
diff --git a/hmp-commands.hx b/hmp-commands.hx
index f3fc514..c242770 100644
--- a/hmp-commands.hx
+++ b/hmp-commands.hx
@@ -999,25 +999,26 @@ ETEXI
The last version is here:
http://lists.nongnu.org/archive/html/qemu-devel/2014-04/msg00018.html
ChangLog:
Changes from v7 to v8:
1. add a patch to fix doc of dump-guest-memory
Qiao Nuohan (2):
HMP: fix doc of dump-guest-memory
HMP: support specifying dump format for dump-guest-memory
hmp
Signed-off-by: Qiao Nuohan qiaonuo...@cn.fujitsu.com
---
hmp-commands.hx | 12 ++--
1 file changed, 6 insertions(+), 6 deletions(-)
diff --git a/hmp-commands.hx b/hmp-commands.hx
index 0da8f28..ca5737b 100644
--- a/hmp-commands.hx
+++ b/hmp-commands.hx
@@ -1000,10 +1000,10 @@ ETEXI
this feature is here:
http://lists.nongnu.org/archive/html/qemu-devel/2014-03/msg04235.html
Signed-off-by: Qiao Nuohan qiaonuo...@cn.fujitsu.com
Suggested-by: Christian Borntraeger borntrae...@de.ibm.com
---
hmp-commands.hx | 13 ++---
hmp.c | 25 ++---
2 files
this feature is here:
http://lists.nongnu.org/archive/html/qemu-devel/2014-03/msg04235.html
Signed-off-by: Qiao Nuohan qiaonuo...@cn.fujitsu.com
Suggested-by: Christian Borntraeger borntrae...@de.ibm.com
---
hmp-commands.hx | 11 +++
hmp.c | 25 -
2 files changed
the error message because of the
incompatible type. And I have fixed patches and sent them to the qemu list.
P.S.
lzo/snappy will need '--enable-lzo' or '--enable-snappy' at configure.
--
Regards
Qiao Nuohan
}
+- { return: { formats:
+[elf, kdump-zlib, kdump-lzo, kdump-snappy] }
+
+EQMP
+
+{
.name = netdev_add,
.args_type = netdev:O,
.mhandler.cmd_new = qmp_netdev_add,
--
Regards
Qiao Nuohan
From c729625031c88b0bf32bae50c39f81585303cc52
-by: Qiao Nuohan qiaonuo...@cn.fujitsu.com
---
dump.c | 33 +
qapi-schema.json | 23 +++
qmp-commands.hx | 20
3 files changed, 76 insertions(+), 0 deletions(-)
diff --git a/dump.c b/dump.c
index 2ebbb23..3a8d55e
-by: Qiao Nuohan qiaonuo...@cn.fujitsu.com
---
dump.c | 33 +
qapi-schema.json |9 +
qmp-commands.hx | 23 +++
3 files changed, 65 insertions(+), 0 deletions(-)
diff --git a/dump.c b/dump.c
index 2ebbb23..3a8d55e 100644
for it.
--
Regards
Qiao Nuohan
is
better, but I want to check whether Eric has some comments on it.
Thanks,
Laszlo
--
Regards
Qiao Nuohan
easily when bisecting.
Yes, I can. But what's the problem with patch 13? For me having Eric's
ACK is enough for applying it. Anything else will be done by QMP
introspection.
Hello Eric,
Need your review here, thanks a lot!!
--
Regards
Qiao Nuohan
+
3 files changed, 8 insertions(+), 2 deletions(-)
Reviewed-by: Qiao Nuohan qiaonuo...@cn.fujitsu.com
Sorry for replying later. The patch seems good to me and works well on my
machine.
P.S.
I have no idea about where to find queued patches, could you give some hint?
--
Regards
Qiao Nuohan
On 01/28/2014 09:37 PM, Laszlo Ersek wrote:
I seem to recall that Qiao Nuohan stated that he (*) couldn't test this
feature on any other architecture than i686/x86_64.
So my proposal is, let's not block the series based on just this one
point. Let's review it and allow it to be merged
is:
http://lists.gnu.org/archive/html/qemu-devel/2014-01/msg02139.html
--
Regards
Qiao Nuohan
), but
it looks OK to me.
I see, moving them into if(format...) {...} block would be better. But, I
have no idea of regression-testing (perf-wise), would you mind give some hint?
--
Regards
Qiao Nuohan
+-
include/sysemu/dump.h | 138 +++
qapi-schema.json | 38 ++-
qmp-commands.hx | 38 ++-
7 files changed, 1228 insertions(+), 20 deletions(-)
--
Regards
Qiao Nuohan
can check the differences between the
reset patches with the last version. And thanks again.
--
Regards
Qiao Nuohan
the guest
should only be x86/x86_64, actually, I get no knowledge about other arch, so
what I can do now is just make x86/x86_64 works and be tested.
--
Regards
Qiao Nuohan
(to send over the fd later),
in doCoreDump(), it also passes O_TRUNC. OK.
Do you mean because of O_TRUNC，seek will exceed the end of the file that may
cause some problem?
--
Regards
Qiao Nuohan
bytes with the value 0 until data is actually written into the gap.
http://pubs.opengroup.org/onlinepubs/9699919799/functions/lseek.html
So this is fine.
Thanks for your explanation. I think it would be better to abandon the non-flat
mode to avoid potential risk.
--
Regards
Qiao Nuohan
. The flat (non-seekable)
format was a surprise to me -- I wouldn't have thought that any debugger
could directly consume that format.
The flat-mode comes from makedumpfile as kdump-compressed format, and crash
utility has already supported it.
--
Regards
Qiao Nuohan
directly.
--
Regards
Qiao Nuohan
*buf here, but it certainly
doesn't warrant a respin.
Acked, I will reflect it in later version.
--
Regards
Qiao Nuohan
preferable.
Addition to a pointer-to-void is a constraint violation in standard C
(... operand shall be a pointer to an object type ...), ie. it's a gcc
extension here, but I guess we can live with it.
Using s-note_size as limit seems correct.
Acked.
--
Regards
Qiao Nuohan
for compile tools [$cross_prefix]
echo --cc=CC use C compiler CC [$cc]
...
cut
--
Regards
Qiao Nuohan
Hello Eric, Luiz and Laszlo,
What do you think about my series? And I have add the light-weight
introspection in the last patch, do you have some comments on it?
On 01/05/2014 03:27 PM, Qiao Nuohan wrote:
Hi, all
The last version is here:
http://lists.nongnu.org/archive/html/qemu-devel/2013
On 01/07/2014 03:27 PM, Laszlo Ersek wrote:
I haven't finished reviewing it yet, but thus far (up to including
patch 05) I'm OK with it.
I see, thanks for your work.
--
Regards
Qiao Nuohan
the functions are used to write header of kdump-compressed format to vmcore.
Header of kdump-compressed format includes:
1. common header: DiskDumpHeader32 / DiskDumpHeader64
2. sub header: KdumpSubHeader32 / KdumpSubHeader64
3. extra information: only elf notes here
Signed-off-by: Qiao Nuohan
kdump-compressed format supports three compression format, zlib/lzo/snappy.
Currently, only zlib is available. This patch is used to support lzo/snappy.
'--enable-lzo/--enable-snappy' is needed to be specified with configure to make
lzo/snappy available for qemu
Signed-off-by: Qiao Nuohan qiaonuo
;
int64_t buf_size;
};
Signed-off-by: Qiao Nuohan qiaonuo...@cn.fujitsu.com
---
dump.c | 28
1 files changed, 28 insertions(+), 0 deletions(-)
diff --git a/dump.c b/dump.c
index 89baeab..764db39 100644
--- a/dump.c
+++ b/dump.c
@@ -726,6 +726,34 @@ static int
,
capabilities: [
{available: true, format: elf},
{available: true, format: kdump-zlib},
{available: true, format: kdump-lzo},
{available: true, format: kdump-snappy}
]
}
Signed-off-by: Qiao Nuohan qiaonuo...@cn.fujitsu.com
---
dump.c | 38
.
3. Address Andreas's comment: remove useless include.
Qiao Nuohan (11):
dump: Add argument to write_elfxx_notes
dump: Add API to write header of flatten format
dump: Add API to write vmcore
dump: Add API to write elf notes to buffer
dump: add support for lzo/snappy
dump: add API
buf_size; /* = -1 */
};
Signed-off-by: Qiao Nuohan qiaonuo...@cn.fujitsu.com
---
dump.c| 40
include/sysemu/dump.h | 17 +
2 files changed, 57 insertions(+), 0 deletions(-)
diff --git a/dump.c b/dump.c
index 1fa12a2
-off-by: Qiao Nuohan qiaonuo...@cn.fujitsu.com
---
dump.c | 19 +++
1 files changed, 19 insertions(+), 0 deletions(-)
diff --git a/dump.c b/dump.c
index 764db39..3b9cf00 100644
--- a/dump.c
+++ b/dump.c
@@ -76,6 +76,9 @@ typedef struct DumpState {
int64_t begin;
int64_t
and
makedumpfile, and it can be smaller than the ELF format because of the
compression support.
2. The kdump-compressed format is the 6th edition.
Signed-off-by: Qiao Nuohan qiaonuo...@cn.fujitsu.com
---
dump.c | 163 --
hmp-commands.hx
DataCache is used to store data temporarily, then the data will be written to
vmcore. These functions will be called later when writing data of page to
vmcore.
Signed-off-by: Qiao Nuohan qiaonuo...@cn.fujitsu.com
---
dump.c| 52
functions are used to write page to vmcore. vmcore is written page by page.
page desc is used to store the information of a page, including a page's size,
offset, compression format, etc.
Signed-off-by: Qiao Nuohan qiaonuo...@cn.fujitsu.com
---
dump.c| 258
write_elf32_notes/wirte_elf64_notes use fd_write_vmcore to write elf notes to
vmcore. Adding parameter WriteCoreDumpFunction f makes it available to choose
the method of writing elf notes
Signed-off-by: Qiao Nuohan qiaonuo...@cn.fujitsu.com
---
dump.c | 16
1 files changed, 8
functions are used to write 1st and 2nd dump_bitmap of kdump-compressed format,
which is used to indicate whether the corresponded page is existed in vmcore.
1st and 2nd dump_bitmap are same, because dump level is specified to 1 here.
Signed-off-by: Qiao Nuohan qiaonuo...@cn.fujitsu.com
command?
On 07/09/2013 03:30 PM, Qiao Nuohan wrote:
Hi, all
The last version is here:
http://lists.gnu.org/archive/html/qemu-devel/2013-05/msg03866.html
Command 'dump-guest-memory' was introduced to dump guest's memory. But the
vmcore's format is only elf32 or elf64. The message is here:
http
waiting for introspection. And your
patches seem good to me.
--
Regards
Qiao Nuohan
On 08/02/2013 11:41 AM, Amos Kong wrote:
On Fri, Aug 02, 2013 at 11:25:17AM +0800, Qiao Nuohan wrote:
On 07/31/2013 09:10 PM, Luiz Capitulino wrote:
QMP introspection didn't make it for 1.6.
Thanks for your info. I will still wait for introspection.
Can you help to review if the output
On 07/31/2013 09:10 PM, Luiz Capitulino wrote:
QMP introspection didn't make it for 1.6.
Thanks for your info. I will still wait for introspection.
--
Regards
Qiao Nuohan
Hello Luiz and Amos,
My patches are waiting for introspection. But now I cannot quite catch the
situation of introspection, so I hope to get some information about current
state from you. It will be very appreciated.
On 07/09/2013 03:36 PM, Qiao Nuohan wrote:
On 07/09/2013 03:30 PM, Qiao
On 07/09/2013 03:36 PM, Qiao Nuohan wrote:
Still waiting for introspection... And comments about format will be very
helpful.
Hi Stefan and others,
What do you think about the process of creating vmcore in kdump-compressed
format?
--
Regards
Qiao Nuohan
in structure used by kdump format. Thanks for pointing
it out.
--
Regards
Qiao Nuohan
On 07/16/2013 10:06 AM, Stefan Hajnoczi wrote:
On Tue, Jul 09, 2013 at 03:30:07PM +0800, Qiao Nuohan wrote:
+static int write_start_flat_header(int fd)
+{
+char buf[MAX_SIZE_MDF_HEADER];
+MakedumpfileHeader mh;
Why is buf[] necessary? You can write mh directly.
The size of header
-made ones accoring.
3. Address Andreas's comment: remove useless include.
Qiao Nuohan (9):
dump: Add argument to write_elfxx_notes
dump: Add API to write header of flatten format
dump: Add API to write vmcore
dump: Add API to write elf notes to buffer
dump: add API to write dump header
functions are used to write 1st and 2nd dump_bitmap of kdump-compressed format,
which is used to indicate whether the corresponded page is existed in vmcore.
Dump level 1 is chosen, so 1st and 2nd dump_bitmap are same.
Signed-off-by: Qiao Nuohan qiaonuo...@cn.fujitsu.com
Reviewed-by: Zhang Xiaohe
write_elf32_notes/wirte_elf64_notes use fd_write_vmcore to write elf notes to
vmcore. Adding argument WriteCoreDumpFunction f makes it available to choose
the way of writing elf notes when calling these two functions.
Signed-off-by: Qiao Nuohan qiaonuo...@cn.fujitsu.com
Reviewed-by: Zhang Xiaohe
functions are used to write page desc and page data to vmcore.
Signed-off-by: Qiao Nuohan qiaonuo...@cn.fujitsu.com
Reviewed-by: Zhang Xiaohe zhan...@cn.fujitsu.com
---
configure | 50 +
dump.c| 264 +
include
;
int64_t buf_size;
};
Signed-off-by: Qiao Nuohan qiaonuo...@cn.fujitsu.com
Reviewed-by: Zhang Xiaohe zhan...@cn.fujitsu.com
---
dump.c | 28
1 files changed, 28 insertions(+), 0 deletions(-)
diff --git a/dump.c b/dump.c
index f04d4fc..6f14b8d 100644
--- a/dump.c
-by: Qiao Nuohan qiaonuo...@cn.fujitsu.com
Reviewed-by: Zhang Xiaohe zhan...@cn.fujitsu.com
---
dump.c| 40
include/sysemu/dump.h | 17 +
2 files changed, 57 insertions(+), 0 deletions(-)
diff --git a/dump.c b/dump.c
index
DataCache is used to store data temporarily, then the data will be written to
vmcore. These functions will be called later when writing data of page to
vmcore.
Signed-off-by: Qiao Nuohan qiaonuo...@cn.fujitsu.com
Reviewed-by: Zhang Xiaohe zhan...@cn.fujitsu.com
---
dump.c| 52
, and
it can be smaller than the ELF format because of the compression support.
2. The kdump-compressed format is the 5th edition.
Signed-off-by: Qiao Nuohan qiaonuo...@cn.fujitsu.com
Signed-off-by: Zhang Xiaohe zhan...@cn.fujitsu.com
---
dump.c| 154
-note_buf will be used later.
Signed-off-by: Qiao Nuohan qiaonuo...@cn.fujitsu.com
Reviewed-by: Zhang Xiaohe zhan...@cn.fujitsu.com
---
dump.c | 19 +++
1 files changed, 19 insertions(+), 0 deletions(-)
diff --git a/dump.c b/dump.c
index 6f14b8d..d7b3624 100644
--- a/dump.c
the functions are used to write header of kdump-compressed format to vmcore.
Header of kdump-compressed format includes:
1. common header: DiskDumpHeader32 / DiskDumpHeader64
2. sub header: KdumpSubHeader32 / KdumpSubHeader64
3. extra information: only elf notes here
Signed-off-by: Qiao Nuohan
On 07/09/2013 03:30 PM, Qiao Nuohan wrote:
The last version is here:
http://lists.gnu.org/archive/html/qemu-devel/2013-05/msg03866.html
Hi all,
Still waiting for introspection... And comments about format will be very
helpful.
Thanks!
--
Qiao Nuohan
and size of a data block.
struct makedumpfile_data_header {
int64_t offset;
int64_t buf_size;
};
For more information, please refer to makedumpfile
http://sourceforge.net/projects/makedumpfile/
--
Regards
Qiao Nuohan
. But now we only need to exclude zero pages and there's formal mechanism
between qemu and linux kernel, so without metadata can also satisfy our need.
Think over all of the above, I still chose kdump-compressed format. What's your
opinion about this?
--
Regards
Qiao Nuohan
for your comments!
--
Regards
Qiao Nuohan
On 06/14/2013 02:12 AM, Luiz Capitulino wrote:
I've started reviewing this, but I'm out of cycles for this week.
Hi Luiz,
No comments yet?
--
Regards
Qiao Nuohan
Qiao Nuohan
app like
libvirt to know whether or not a given QEMU version supports your new
argument.
Thanks for your explanation.
--
Regards
Qiao Nuohan
will choose to wait. However, I cannot figure out how long it
will take, why not get the parts not related to introspection settled first?
Seems Amos's draft will not change qapi-schema.json.
--
Regards
Qiao Nuohan
new constants by using the
ready-made ones accoring.
3. Address Andreas's comment: remove useless include.
Qiao Nuohan (9):
dump: Add API to manipulate dump_bitmap
dump: Add API to manipulate cache_data
dump: Move struct definition into dump_memroy.h
dump: Add API to create header
conflict only with removing useless headers. So I will
create another head file and move what I want into it.
P.S.
RAMBlock, what I want, may cause conflict.
--
Regards
Qiao Nuohan
Hi eric and luiz,
Does you have some comments on this version?
--
Regards
Qiao Nuohan
.
Well, I have got no reason to object. And thanks.
--
Regards
Qiao Nuohan
Function walk_pte needs pte index to calculate virtual address. However, pte
index of PAE paging or IA-32e paging is 9 bit, so the mask should be 0x1ff.
Signed-off-by: Qiao Nuohan qiaonuo...@cn.fujitsu.com
---
target-i386/arch_memory_mapping.c |2 +-
1 files changed, 1 insertions(+), 1
On 05/22/2013 09:21 AM, Qiao Nuohan wrote:
Function walk_pte needs pte index to calculate virtual address. However,
pte
index of PAE paging or IA-32e paging is 9 bit, so the mask should be 0x1ff.
Signed-off-by: Qiao Nuohan qiaonuo...@cn.fujitsu.com
Reviewed by: Jesse Larrew jlar
Function walk_pte needs pte index to calculate virtual address. However, pte
index of PAE paging or IA-32e paging is 9 bit, so the mask should be 0x1ff.
---
target-i386/arch_memory_mapping.c |2 +-
1 files changed, 1 insertions(+), 1 deletions(-)
diff --git
Ping. Any other comments?
On 05/17/2013 11:24 AM, Qiao Nuohan wrote:
Hi, all
The last version is here:
http://lists.gnu.org/archive/html/qemu-devel/2013-05/msg01947.html
Command 'dump-guest-memory' was introduced to dump guest's memory. But the
vmcore's format is only elf32 or elf64
On 05/17/2013 04:20 PM, Andreas Färber wrote:
Jens and me have been working towards removing the dependency on
CONFIG_HAVE_CORE_DUMP. Would there be any issue building this code
unconditionally using obj-y += dump_bitmap.o ?
No problems will be involved.
--
Regards
Qiao Nuohan
Move includes and definition of struct DumpState into include/sysemu/dump.h.
Signed-off-by: Qiao Nuohan qiaonuo...@cn.fujitsu.com
Reviewed-by: Zhang Xiaohe zhan...@cn.fujitsu.com
---
dump.c| 29 -
include/sysemu/dump.h | 30
When calling create_header, create_dump_bitmap and create_pages, some memory
spaces are allocated. The following patch will use this function to free these
memory.
Signed-off-by: Qiao Nuohan qiaonuo...@cn.fujitsu.com
Reviewed-by: Zhang Xiaohe zhan...@cn.fujitsu.com
---
dump.c | 19
Struct dump_bitmap is associated with a tmp file which is used to store bitmap
in kdump-compressed format temporarily. The following patch will use these
functions to gather data of bitmap and cache them into tmp files.
Signed-off-by: Qiao Nuohan qiaonuo...@cn.fujitsu.com
Reviewed-by: Zhang
Functions in this patch are used to gather data of 1st and 2nd dump bitmap in
kdump-compressed format. The following patch will use these functions to gather
data of dump bitmap, then cache them into tmp files.
Signed-off-by: Qiao Nuohan qiaonuo...@cn.fujitsu.com
Reviewed-by: Zhang Xiaohe zhan
Struct cache_data is associated with a tmp file which is used to store page
desc and page data in kdump-compressed format temporarily. The following patch
will use these function to gather data of page and cache them in tmp files.
Signed-off-by: Qiao Nuohan qiaonuo...@cn.fujitsu.com
Reviewed
useless include.
Qiao Nuohan (9):
Add API to manipulate dump_bitmap
Add API to manipulate cache_data
Move includes and struct definition to dump.h
Add API to create header of vmcore
Add API to create data of dump bitmap
Add API to create page
Add API to free buf used by creating header
Functions in this patch are used to gather data of page desc and page data in
kdump-compressed format. The following patch will use these functions to gather
data of page, then cache them into tmp files
Signed-off-by: Qiao Nuohan qiaonuo...@cn.fujitsu.com
Reviewed-by: Zhang Xiaohe zhan
Functions in this patch are used to gather data of header and sub header in
kdump-compressed format. The following patch will use these functions to gather
data of header, then cache them into struct DumpState.
Signed-off-by: Qiao Nuohan qiaonuo...@cn.fujitsu.com
Reviewed-by: Zhang Xiaohe zhan
The following patch will use these functions to write cached data into vmcore.
Header is cached in DumpState, and bitmap and page are cached in tmp files.
Signed-off-by: Qiao Nuohan qiaonuo...@cn.fujitsu.com
Reviewed-by: Zhang Xiaohe zhan...@cn.fujitsu.com
---
dump.c| 259
the ELF format because of the compression support.
2. The kdump-compressed format is the 5th edition.
Signed-off-by: Qiao Nuohan qiaonuo...@cn.fujitsu.com
Signed-off-by: Zhang Xiaohe zhan...@cn.fujitsu.com
---
configure | 50
dump.c| 102
available.
Changelog:
Changes from v1 to v2:
1. Address Eric Daniel's comment: fix manner of string copy.
2. Address Eric's comment: replace reinventing new constants by using the
ready-made ones accoring.
3. Address Andreas's comment: remove useless include.
Qiao Nuohan (9):
Add API
Move includes and definition of struct DumpState into include/sysemu/dump.h.
Signed-off-by: Qiao Nuohan qiaonuo...@cn.fujitsu.com
Reviewed-by: Zhang Xiaohe zhan...@cn.fujitsu.com
---
dump.c| 29 -
include/sysemu/dump.h | 30
Add API to create header, sub header of vmcore in kdump-compressed format.
The data is store in struct DumpState.
The following patch will use this function to gather data of header, then
write them into vmcore.
Signed-off-by: Qiao Nuohan qiaonuo...@cn.fujitsu.com
Reviewed-by: Zhang Xiaohe zhan
-stub.o
LIBS+=$(libs_softmmu)
diff --git a/cache_data.c b/cache_data.c
new file mode 100644
index 000..469ed94
--- /dev/null
+++ b/cache_data.c
@@ -0,0 +1,121 @@
+/*
+ * QEMU cache data
+ *
+ * Copyright Fujitsu, Corp. 2013
+ *
+ * Authors:
+ * Qiao Nuohan qiaonuo...@cn.fujitsu.com
Add API to get data of the 1st and 2nd dump bitmap and save them into tmp files.
The following patch will use these functions to gather data of dump bitmap,
then write them into vmcore.
Signed-off-by: Qiao Nuohan qiaonuo...@cn.fujitsu.com
Reviewed-by: Zhang Xiaohe zhan...@cn.fujitsu.com
Add API to get data of page desc and page data and save them into tmp files.
The following patch will use these functions to gather data of page desc and
page data, then write them into vmcore
Signed-off-by: Qiao Nuohan qiaonuo...@cn.fujitsu.com
Reviewed-by: Zhang Xiaohe zhan...@cn.fujitsu.com
The following patch will use these functions to write cached data into vmcore.
Header is cached in DumpState, and bitmap and page are cached in tmp files.
Signed-off-by: Qiao Nuohan qiaonuo...@cn.fujitsu.com
Reviewed-by: Zhang Xiaohe zhan...@cn.fujitsu.com
---
dump.c| 259
When calling create_header, create_dump_bitmap and create_pages, some memory
spaces
are allocated. The following patch will use this function to free these spaces.
Signed-off-by: Qiao Nuohan qiaonuo...@cn.fujitsu.com
Reviewed-by: Zhang Xiaohe zhan...@cn.fujitsu.com
---
dump.c | 19
the ELF format because of the compression support.
2. The kdump-compressed format is the 5th edition.
Signed-off-by: Qiao Nuohan qiaonuo...@cn.fujitsu.com
Signed-off-by: Zhang Xiaohe zhan...@cn.fujitsu.com
---
configure | 50 +++
dump.c| 106
Struct dump_bitmap is associated with a tmp file, and the tmp file can be used
to save data of bitmap in kdump-compressed format temporarily.
The following patch will use these functions to get the data of bitmap and cache
them into tmp files.
Signed-off-by: Qiao Nuohan qiaonuo...@cn.fujitsu.com
On 05/15/2013 10:55 AM, Eric Blake wrote:
On 05/14/2013 08:29 PM, Qiao Nuohan wrote:
Make monitor command 'dump-guest-memory' dump in kdump-compressed format.
The command's usage:
dump [-p] protocol [begin] [length] [format]
'format' is used to specified the format of vmcore and can be:
1
Add API to create header, sub header of vmcore in kdump-compressed format.
The data is store in struct DumpState.
The following patch will use this function to gather data of header, then
write them into vmcore.
Signed-off-by: Qiao Nuohan qiaonuo...@cn.fujitsu.com
Reviewed-by: Zhang Xiaohe zhan
Add API to get data of page desc and page data and save them into tmp files.
The following patch will use these functions to gather data of page desc and
page data, then write them into vmcore
Signed-off-by: Qiao Nuohan qiaonuo...@cn.fujitsu.com
Reviewed-by: Zhang Xiaohe zhan...@cn.fujitsu.com
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