Hi,
recently, i was testing the vhost_net module.
Already was fine during several hours, until a kernel bug?
The kernel is a 2.6.36, qemu-kvm was compiled against the last git
version (0.13.50) with the --enable-vhost-net option.
r...@ayrshire:~# /usr/bin/qemu-system-x86_64 --version
QEMU
Bugs item #2494730, was opened at 2009-01-09 00:29
Message generated for change (Comment added) made by jessorensen
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Clean up cpu_inject_x86_mce() for later patch.
Signed-off-by: Jin Dongming jin.dongm...@np.css.fujitsu.com
---
target-i386/helper.c | 26 --
1 files changed, 16 insertions(+), 10 deletions(-)
diff --git a/target-i386/helper.c b/target-i386/helper.c
index
When the following test case is injected with mce command, maybe user could not
get the expected result.
DATA
command cpu bank status mcg_status addr misc
(qemu) mce 1 10xbd00 0x050x1234 0x8c
Expected Result
Broadcast MCA signal is not supported by the CPUs whose version is
below 06H_EH.
Signed-off-by: Jin Dongming jin.dongm...@np.css.fujitsu.com
---
target-i386/helper.c | 13 +
1 files changed, 13 insertions(+), 0 deletions(-)
diff --git a/target-i386/helper.c b/target-i386/helper.c
Hi, Dongming,
On Tue, 2010-11-30 at 16:15 +0800, Jin Dongming wrote:
Broadcast MCA signal is not supported by the CPUs whose version is
below 06H_EH.
Signed-off-by: Jin Dongming jin.dongm...@np.css.fujitsu.com
---
target-i386/helper.c | 13 +
1 files changed, 13
Hi, Huang-san
(2010/11/30 17:22), Huang Ying wrote:
Hi, Dongming,
On Tue, 2010-11-30 at 16:15 +0800, Jin Dongming wrote:
Broadcast MCA signal is not supported by the CPUs whose version is
below 06H_EH.
Signed-off-by: Jin Dongming jin.dongm...@np.css.fujitsu.com
---
target-i386/helper.c
On Mon, Nov 29, 2010 at 03:01:10PM -0500, valdis.kletni...@vt.edu wrote:
On Mon, 29 Nov 2010 19:32:12 +0100, Joerg Roedel said:
On Mon, Nov 29, 2010 at 12:23:38PM -0500, valdis.kletni...@vt.edu wrote:
(Sorry for late reply...)
On Thu, 25 Nov 2010 17:23:13 +0100, Roedel, Joerg said:
sr-iov also meet this problem, MSIX mask waste a lot of cpu resource.
I test kvm with sriov, which the vf driver could not disable msix.
so the host os waste a lot of cpu. cpu rate of host os is 90%.
then I test xen with sriov, there ara also a lot of vm exits caused by
MSIX mask.
but the cpu
(2010/11/30 1:41), Dor Laor wrote:
Is this a fair summary: any device that supports live migration workw
under Kemari?
It might be fair summary but practically we barely have live migration working
w/o Kemari. In addition, last I checked Kemari needs additional hooks and it
will be too hard
Am 29.11.2010 20:22, Daniel Gollub wrote:
On Tuesday, November 30, 2010 01:20:17 am Jan Kiszka wrote:
Unfortunately we're running (in meanwhile) an old version of buildbot as
buildbot-master (0.7.8, as shipped by Debian 5).
Last time I checked (quite a few moons ago, though), that version
On Tuesday 30 November 2010 17:10:11 lidong chen wrote:
sr-iov also meet this problem, MSIX mask waste a lot of cpu resource.
I test kvm with sriov, which the vf driver could not disable msix.
so the host os waste a lot of cpu. cpu rate of host os is 90%.
then I test xen with sriov, there
2010/11/30 Marcelo Tosatti mtosa...@redhat.com:
On Thu, Nov 25, 2010 at 03:06:48PM +0900, Yoshiaki Tamura wrote:
event-tap controls when to start FT transaction, and provides proxy
functions to called from net/block devices. While FT transaction, it
queues up net/block requests, and flush
It's the speculative path if 'no_apf = 1' and we will specially handle this
speculative path in the later patch, so 'prefault' is better to fit the sense
Signed-off-by: Xiao Guangrong xiaoguangr...@cn.fujitsu.com
---
arch/x86/include/asm/kvm_host.h |3 ++-
arch/x86/kvm/mmu.c |
Retry #PF is the speculative path, so don't set the accessed bit,
especially, stop prefault if shadow_accessed_mask = 0
Signed-off-by: Xiao Guangrong xiaoguangr...@cn.fujitsu.com
---
arch/x86/include/asm/kvm_host.h |1 +
arch/x86/kvm/mmu.c | 12 +++-
arch/x86/kvm/x86.c
Retry #PF for softmmu only when the current vcpu has the same root shadow page
as the time when #PF occurs. it means they have same paging environment
Signed-off-by: Xiao Guangrong xiaoguangr...@cn.fujitsu.com
---
arch/x86/include/asm/kvm_host.h |5 +
arch/x86/kvm/mmu.c |
2010/11/29 Stefan Hajnoczi stefa...@gmail.com:
On Thu, Nov 25, 2010 at 6:06 AM, Yoshiaki Tamura
tamura.yoshi...@lab.ntt.co.jp wrote:
event-tap controls when to start FT transaction, and provides proxy
functions to called from net/block devices. While FT transaction, it
queues up net/block
On Tue, Nov 30, 2010 at 9:50 AM, Yoshiaki Tamura
tamura.yoshi...@lab.ntt.co.jp wrote:
2010/11/29 Stefan Hajnoczi stefa...@gmail.com:
On Thu, Nov 25, 2010 at 6:06 AM, Yoshiaki Tamura
tamura.yoshi...@lab.ntt.co.jp wrote:
event-tap controls when to start FT transaction, and provides proxy
The following series implements page cache control,
this is a split out version of patch 1 of version 3 of the
page cache optimization patches posted earlier at
http://www.mail-archive.com/kvm@vger.kernel.org/msg43654.html
Christoph Lamater recommended splitting out patch 1, which
is what this
This patch moves zone_reclaim and associated helpers
outside CONFIG_NUMA. This infrastructure is reused
in the patches for page cache control that follow.
Signed-off-by: Balbir Singh bal...@linux.vnet.ibm.com
---
include/linux/mmzone.h |4 ++--
mm/vmscan.c|2 --
2 files
Refactor zone_reclaim, move reusable functionality outside
of zone_reclaim. Make zone_reclaim_unmapped_pages modular
Signed-off-by: Balbir Singh bal...@linux.vnet.ibm.com
---
mm/vmscan.c | 35 +++
1 files changed, 23 insertions(+), 12 deletions(-)
diff --git
Provide control using zone_reclaim() and a boot parameter. The
code reuses functionality from zone_reclaim() to isolate unmapped
pages and reclaim them as a priority, ahead of other mapped pages.
Signed-off-by: Balbir Singh bal...@linux.vnet.ibm.com
---
include/linux/swap.h |5 ++-
2010/11/30 Stefan Hajnoczi stefa...@gmail.com:
On Tue, Nov 30, 2010 at 9:50 AM, Yoshiaki Tamura
tamura.yoshi...@lab.ntt.co.jp wrote:
2010/11/29 Stefan Hajnoczi stefa...@gmail.com:
On Thu, Nov 25, 2010 at 6:06 AM, Yoshiaki Tamura
tamura.yoshi...@lab.ntt.co.jp wrote:
event-tap controls when to
On Tue, Nov 30, 2010 at 06:28:55PM +0900, Yoshiaki Tamura wrote:
2010/11/30 Marcelo Tosatti mtosa...@redhat.com:
On Thu, Nov 25, 2010 at 03:06:48PM +0900, Yoshiaki Tamura wrote:
event-tap controls when to start FT transaction, and provides proxy
functions to called from net/block devices.
On Thursday, November 11, 2010 02:31:06 am Avi Kivity wrote:
Daniel, the buildbot has been fairly effective in keeping qemu-kvm.git
building. I'd like to extend that to kvm.git, especially for non-x86
architectures.
buildbot for kvm.git is now live and is build-testing the master and
Marcelo Tosatti wrote:
On Tue, Nov 30, 2010 at 06:28:55PM +0900, Yoshiaki Tamura wrote:
2010/11/30 Marcelo Tosattimtosa...@redhat.com:
On Thu, Nov 25, 2010 at 03:06:48PM +0900, Yoshiaki Tamura wrote:
event-tap controls when to start FT transaction, and provides proxy
functions to called from
On Mon, Nov 29, 2010 at 04:12:30PM +0200, Avi Kivity wrote:
Currently page fault cr2 and nesting infomation are carried outside
the fault data structure. Instead they are placed in the vcpu struct,
which results in confusion as global variables are manipulated instead
of passing parameters.
Bugs item #2042889, was opened at 2008-08-08 13:16
Message generated for change (Settings changed) made by jessorensen
You can respond by visiting:
https://sourceforge.net/tracker/?func=detailatid=893831aid=2042889group_id=180599
Please note that this message will contain a full copy of the
On Mon, 2010-11-29 at 08:08 -1000, Zachary Amsden wrote:
On 11/29/2010 07:52 AM, Randy Dunlap wrote:
On 11/29/10 09:47, Zachary Amsden wrote:
On 11/29/2010 06:35 AM, Avi Kivity wrote:
On 11/29/2010 06:33 PM, Randy Dunlap wrote:
On Mon, 22 Nov 2010 13:26:27 -0800
Anthony,
Can you please apply this patch and update the submodule in QEMU
to use it? Its the only diff between qemu-kvm's vgabios and qemu's.
Thanks
On Mon, Nov 22, 2010 at 12:24:04PM +0100, Gerd Hoffmann wrote:
On 11/21/10 16:33, Avi Kivity wrote:
+{ 1280, 768, 16 ,
On Tue, Nov 30, 2010 at 07:35:54PM +0900, Yoshiaki Tamura wrote:
Marcelo Tosatti wrote:
On Tue, Nov 30, 2010 at 06:28:55PM +0900, Yoshiaki Tamura wrote:
2010/11/30 Marcelo Tosattimtosa...@redhat.com:
On Thu, Nov 25, 2010 at 03:06:48PM +0900, Yoshiaki Tamura wrote:
event-tap controls when to
On Tue, Nov 30, 2010 at 05:36:07PM +0800, Xiao Guangrong wrote:
Retry #PF is the speculative path, so don't set the accessed bit,
especially, stop prefault if shadow_accessed_mask = 0
Signed-off-by: Xiao Guangrong xiaoguangr...@cn.fujitsu.com
---
arch/x86/include/asm/kvm_host.h |1 +
On Tue, Nov 30, 2010 at 12:58 PM, Dor Laor dl...@redhat.com wrote:
Please send in any agenda items you are interested in covering.
Juan already has a thread for agenda items. It includes:
As I forgot to put the call for agenda befor, Anthony already suggested:
- 2011 kvm conference
- 0.14.0
On 11/30/2010 02:58 PM, Dor Laor wrote:
Please send in any agenda items you are interested in covering.
nested vmx? must pick up pace if want to merge.
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On 11/30/2010 01:15 AM, Paolo Bonzini wrote:
On 11/30/2010 03:11 AM, Anthony Liguori wrote:
BufferedFile should hit the qemu_file_rate_limit check when the socket
buffer gets filled up.
The problem is that the file rate limit is not hit because work is
done elsewhere. The rate can limit
On 11/30/2010 03:47 PM, Anthony Liguori wrote:
On 11/30/2010 01:15 AM, Paolo Bonzini wrote:
On 11/30/2010 03:11 AM, Anthony Liguori wrote:
BufferedFile should hit the qemu_file_rate_limit check when the socket
buffer gets filled up.
The problem is that the file rate limit is not hit because
On 11/30/2010 08:12 AM, Paolo Bonzini wrote:
On 11/30/2010 02:47 PM, Anthony Liguori wrote:
On 11/30/2010 01:15 AM, Paolo Bonzini wrote:
On 11/30/2010 03:11 AM, Anthony Liguori wrote:
BufferedFile should hit the qemu_file_rate_limit check when the socket
buffer gets filled up.
The problem
On 11/30/2010 07:58 AM, Avi Kivity wrote:
On 11/30/2010 03:47 PM, Anthony Liguori wrote:
On 11/30/2010 01:15 AM, Paolo Bonzini wrote:
On 11/30/2010 03:11 AM, Anthony Liguori wrote:
BufferedFile should hit the qemu_file_rate_limit check when the socket
buffer gets filled up.
The problem is
2011 KVM Conference
- together with LF event like LinuxCon Vancouver BC (Aug), KS Prague (Nov)
- wider audience
- include qemu (tcg)
- include libvirt
- include xen
0.14.0 release plan
- could push things out, mainly want to keep on track for
infrastructure changes (irc channel migration,
On 11/30/2010 09:53 AM, Chris Wright wrote:
2011 KVM Conference
- together with LF event like LinuxCon Vancouver BC (Aug), KS Prague (Nov)
- wider audience
- include qemu (tcg)
- include libvirt
- include xen
0.14.0 release plan
- could push things out, mainly want to keep on track for
On Mon, Nov 22, 2010 at 05:53:20PM +0200, Avi Kivity wrote:
This boring patchset introduces a struct x86_exception to represent an
exception, and uses it to communicate between the emulator and the rest
of kvm. The primary benefit is that we can now pass a #GP from kvm into
the emulator, not
On Fri, Nov 19, 2010 at 04:19:01PM -0700, Alex Williamson wrote:
v3:
- Rework to avoid introducing conflicts with qemu.git hw/pci
- Drop capability lookup table
- Add back minimal device assignment PM, EXP, X, VPD, VNDR
capabilities
This version should do a much better job at not
On 11/30/2010 09:29 PM, Gleb Natapov wrote:
+if (!shadow_accessed_mask)
+return;
+
I don't get this. As far as I can see VMX inits shadow_accessed_mask to
be zero if ept is enabled. This line here means that we never prefault with
ept
enabled. It is opposite from what it
This patch wraps changes to the exception intercepts of SVM
into seperate functions to abstract nested-svm better and
prepare the implementation of the vmcb-clean-bits feature.
Signed-off-by: Joerg Roedel joerg.roe...@amd.com
---
arch/x86/kvm/svm.c | 58
This patch adds a function to recalculate the effective
intercepts masks when the vcpu is in guest-mode and either
the host or the guest intercept masks change.
Signed-off-by: Joerg Roedel joerg.roe...@amd.com
---
arch/x86/kvm/svm.c | 43 ++-
1 files
This patch wraps changes to the CRx intercepts of SVM into
seperate functions to abstract nested-svm better and prepare
the implementation of the vmcb-clean-bits feature.
Signed-off-by: Joerg Roedel joerg.roe...@amd.com
---
arch/x86/include/asm/svm.h | 15 +++--
arch/x86/kvm/svm.c |
Hi Avi, Hi Marcelo,
this patchset wraps the access to the intercept vectors in the VMCB into
specific functions. There are two reasons for this:
1) In the nested-svm code the effective intercept masks are
calculated from the host and the guest intercept masks.
This patch replaces the open-coded vmcb-selection for the
TSC calculation with the new get_host_vmcb helper function
introduced in this patchset.
Signed-off-by: Joerg Roedel joerg.roe...@amd.com
---
arch/x86/kvm/svm.c |9 ++---
1 files changed, 2 insertions(+), 7 deletions(-)
diff --git
This patch wraps changes to the misc intercepts of SVM
into seperate functions to abstract nested-svm better and
prepare the implementation of the vmcb-clean-bits feature.
Signed-off-by: Joerg Roedel joerg.roe...@amd.com
---
arch/x86/kvm/svm.c | 84
On 11/30/2010 07:03 PM, Joerg Roedel wrote:
Hi Avi, Hi Marcelo,
this patchset wraps the access to the intercept vectors in the VMCB into
specific functions. There are two reasons for this:
1) In the nested-svm code the effective intercept masks are
calculated from the host
Avi Kivity a...@redhat.com wrote:
On 11/30/2010 04:17 PM, Anthony Liguori wrote:
What's the problem with burning that cpu? per guest page,
compressing takes less than sending. Is it just an issue of qemu
mutex hold time?
If you have a 512GB guest, then you have a 16MB dirty bitmap which
On Wed, Dec 01, 2010 at 12:52:22AM +0800, Xiao Guangrong wrote:
On 11/30/2010 09:29 PM, Gleb Natapov wrote:
+ if (!shadow_accessed_mask)
+ return;
+
I don't get this. As far as I can see VMX inits shadow_accessed_mask to
be zero if ept is enabled. This line here means that
Anthony Liguori anth...@codemonkey.ws wrote:
On 11/30/2010 08:12 AM, Paolo Bonzini wrote:
On 11/30/2010 02:47 PM, Anthony Liguori wrote:
On 11/30/2010 01:15 AM, Paolo Bonzini wrote:
Juan's patch, IIUC, does the following: If you've been iterating in a
tight loop, return to the main loop for
On 12/01/2010 01:50 AM, Gleb Natapov wrote:
On Wed, Dec 01, 2010 at 12:52:22AM +0800, Xiao Guangrong wrote:
On 11/30/2010 09:29 PM, Gleb Natapov wrote:
+ if (!shadow_accessed_mask)
+ return;
+
I don't get this. As far as I can see VMX inits shadow_accessed_mask to
be zero if ept
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On Wed, Dec 01, 2010 at 02:15:29AM +0800, Xiao Guangrong wrote:
On 12/01/2010 01:50 AM, Gleb Natapov wrote:
On Wed, Dec 01, 2010 at 12:52:22AM +0800, Xiao Guangrong wrote:
On 11/30/2010 09:29 PM, Gleb Natapov wrote:
+if (!shadow_accessed_mask)
+return;
+
I
On 12/01/2010 02:38 AM, Gleb Natapov wrote:
It can't avoid the page to be evicted again since the page is marked
accessed only
when spte is droped or updated.
I still do not understand why are you disabling prefault for ept. Why
do you want to distinguish between actually accessed
Reviewed-by: Christoph Lameter c...@linux.com
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On Wed, Dec 01, 2010 at 03:11:11AM +0800, Xiao Guangrong wrote:
On 12/01/2010 02:38 AM, Gleb Natapov wrote:
It can't avoid the page to be evicted again since the page is marked
accessed only
when spte is droped or updated.
I still do not understand why are you disabling prefault for
We added qemu_ram_alloc_from_ptr, but we need its corresponding free
function. With that, we can properly remove the ivshmem memory on unplug.
Cam Macdonell (2):
add qemu_ram_free_from_ptr
Unregister shared memory on unplug.
cpu-common.h |1 +
exec.c | 13 +
add function to free memory from Qemu that was added via
qemu_ram_alloc_from_ptr. Name is a little weird. This is copied from
qemu_ram_unmap from qemu-kvm.
Signed-off-by: Cam Macdonell c...@cs.ualberta.ca
---
cpu-common.h |1 +
exec.c | 13 +
2 files changed, 14
This allows 'peer' ivshmem guests to detach from shared memory before migration
and re-attach after migration is complete.
Signed-off-by: Cam Macdonell c...@cs.ualberta.ca
---
hw/ivshmem.c | 12
1 files changed, 8 insertions(+), 4 deletions(-)
diff --git a/hw/ivshmem.c
On Tue, 30 Nov 2010 15:45:12 +0530
Balbir Singh bal...@linux.vnet.ibm.com wrote:
This patch moves zone_reclaim and associated helpers
outside CONFIG_NUMA. This infrastructure is reused
in the patches for page cache control that follow.
Thereby adding a nice dollop of bloat to everyone's
On Tue, 30 Nov 2010 15:46:31 +0530
Balbir Singh bal...@linux.vnet.ibm.com wrote:
Provide control using zone_reclaim() and a boot parameter. The
code reuses functionality from zone_reclaim() to isolate unmapped
pages and reclaim them as a priority, ahead of other mapped pages.
Signed-off-by:
Ping.
Maintainers, please tell me if still something is required for
this patch before applying it.
Thanks,
H.Seto
(2010/11/24 17:01), Jes Sorensen wrote:
On 11/24/10 03:38, Hidetoshi Seto wrote:
This patch introduce a fallback mechanism for old systems that do not
support utimensat().
On Tue, 30 Nov 2010 16:27:13 +0200
Avi Kivity a...@redhat.com wrote:
On 11/30/2010 04:17 PM, Anthony Liguori wrote:
What's the problem with burning that cpu? per guest page,
compressing takes less than sending. Is it just an issue of qemu
mutex hold time?
If you have a 512GB
On Tue, 30 Nov 2010 15:45:55 +0530
Balbir Singh bal...@linux.vnet.ibm.com wrote:
Refactor zone_reclaim, move reusable functionality outside
of zone_reclaim. Make zone_reclaim_unmapped_pages modular
Signed-off-by: Balbir Singh bal...@linux.vnet.ibm.com
Why is this min_mapped_pages based on
On Tue, 30 Nov 2010 15:46:31 +0530
Balbir Singh bal...@linux.vnet.ibm.com wrote:
Provide control using zone_reclaim() and a boot parameter. The
code reuses functionality from zone_reclaim() to isolate unmapped
pages and reclaim them as a priority, ahead of other mapped pages.
Signed-off-by:
Takuya Yoshikawa yoshikawa.tak...@oss.ntt.co.jp wrote:
On Tue, 30 Nov 2010 16:27:13 +0200
Avi Kivity a...@redhat.com wrote:
Does anyone is profiling these dirty bitmap things?
I am.
- 512GB guest is really the target?
no, problems exist with smaller amounts of RAM. with 16GB guest it is
On 12/01/2010 03:20 AM, Gleb Natapov wrote:
Firs of all if guest is PV the guest process cannot be killed. Second
why is it a problem that we marked pfn as accessed on speculative path?
What problem it causes especially since it is very likely that the page
will be accessed shortly anyway?
On Wed, 01 Dec 2010 02:52:08 +0100
Juan Quintela quint...@redhat.com wrote:
Since we are planning to do some profiling for these, taking into account
Kemari, can you please share these information?
If you see the 0/10 email with this setup, you can see how much time are
we spending on
On Tuesday 30 November 2010 22:15:29 Avi Kivity wrote:
On 11/26/2010 04:35 AM, Yang, Sheng wrote:
Shouldn't kvm also service reads from the pending bitmask?
Of course KVM should service reading from pending bitmask. For
assigned device, it's kernel who would set the pending
In order to include multi-host migration, add a pre-processor
parameter that will make the test start a VM in incoming
migration mode:
migration_mode = tcp
Will make the preprocessor start the VM in tcp -incoming mode.
Signed-off-by: Lucas Meneghel Rodrigues l...@redhat.com
---
This test will carry out the migration between guests in
two different hosts. Depending on the test 'role', different
actions will be taken, and those actions will be synchronized
through the autotest barrier mechanism.
Signed-off-by: Lucas Meneghel Rodrigues l...@redhat.com
---
On Tue, Nov 30, 2010 at 04:01:00PM +0200, Gleb Natapov wrote:
On Mon, Nov 29, 2010 at 08:34:03PM -0500, Kevin O'Connor wrote:
On Sun, Nov 28, 2010 at 08:47:34PM +0200, Gleb Natapov wrote:
If you let go to the idea of exact matching of string built by qemu in
Seabios it will be easy to see
Introduce the server migration control file, that makes
possible to run the multi host migration. It parses the
base config file, restricts it with appropriate
parameters, generates the test dicts, modify the
test_dicts so there's a distinction between the
migration roles ('destination' or
In order to accomodate multi-host migration, make migrate
accept 2 additional parameters, dest_host and mig_port.
Also, handle properly the case where we are doing migration
inside the same host.
Signed-off-by: Lucas Meneghel Rodrigues l...@redhat.com
---
client/tests/kvm/kvm_test_utils.py |
Hi,
Sorry it took so slow to reply you - there are only few moments when I
can poke a production server and I need to notify people in advance
about that :(
Can you post kvm_stat output while slowness is happening? 'perf top' on the
host? and on the guest?
I took 'perf top' and first thing
* Balbir Singh bal...@linux.vnet.ibm.com [2010-12-01 10:04:08]:
* Andrew Morton a...@linux-foundation.org [2010-11-30 14:23:38]:
On Tue, 30 Nov 2010 15:45:12 +0530
Balbir Singh bal...@linux.vnet.ibm.com wrote:
This patch moves zone_reclaim and associated helpers
outside
* Balbir Singh bal...@linux.vnet.ibm.com [2010-12-01 10:16:34]:
* KAMEZAWA Hiroyuki kamezawa.hir...@jp.fujitsu.com [2010-12-01 10:23:29]:
On Tue, 30 Nov 2010 15:45:55 +0530
Balbir Singh bal...@linux.vnet.ibm.com wrote:
Refactor zone_reclaim, move reusable functionality outside
of
* Balbir Singh bal...@linux.vnet.ibm.com [2010-12-01 10:24:21]:
* Andrew Morton a...@linux-foundation.org [2010-11-30 14:25:09]:
On Tue, 30 Nov 2010 15:46:31 +0530
Balbir Singh bal...@linux.vnet.ibm.com wrote:
Provide control using zone_reclaim() and a boot parameter. The
code
* Balbir Singh bal...@linux.vnet.ibm.com [2010-12-01 10:46:32]:
* KOSAKI Motohiro kosaki.motoh...@jp.fujitsu.com [2010-12-01 09:14:13]:
Provide control using zone_reclaim() and a boot parameter. The
code reuses functionality from zone_reclaim() to isolate unmapped
pages and reclaim
* Balbir Singh bal...@linux.vnet.ibm.com [2010-12-01 10:48:16]:
* KAMEZAWA Hiroyuki kamezawa.hir...@jp.fujitsu.com [2010-12-01 10:32:54]:
On Tue, 30 Nov 2010 15:46:31 +0530
Balbir Singh bal...@linux.vnet.ibm.com wrote:
Provide control using zone_reclaim() and a boot parameter. The
On Wed, 1 Dec 2010 10:52:59 +0530
Balbir Singh bal...@linux.vnet.ibm.com wrote:
* Balbir Singh bal...@linux.vnet.ibm.com [2010-12-01 10:48:16]:
* KAMEZAWA Hiroyuki kamezawa.hir...@jp.fujitsu.com [2010-12-01 10:32:54]:
On Tue, 30 Nov 2010 15:46:31 +0530
Balbir Singh
On Wed, 1 Dec 2010 12:10:43 +0530
Balbir Singh bal...@linux.vnet.ibm.com wrote:
That's a point. Then, why the guest has to do _extra_ work for host even
when
the host says nothing ? I think trigger this by guests themselves is not
very good.
I've mentioned it before, the guest
From: Xin Xiaohui xiaohui@intel.com
Then we can clear destructor_arg when __alloc_skb().
Signed-off-by: Xin Xiaohui xiaohui@intel.com
Signed-off-by: Zhao Yu yzhao81...@gmail.com
Reviewed-by: Jeff Dike jd...@linux.intel.com
---
include/linux/skbuff.h |7 ---
1 files changed, 4
From: Xin Xiaohui xiaohui@intel.com
Signed-off-by: Xin Xiaohui xiaohui@intel.com
Signed-off-by: Zhao Yu yzhao81...@gmail.com
Reviewed-by: Jeff Dike jd...@linux.intel.com
---
include/linux/netdevice.h |5 +
1 files changed, 5 insertions(+), 0 deletions(-)
diff --git
From: Xin Xiaohui xiaohui@intel.com
Currently, it can get external buffers from mp device.
Signed-off-by: Xin Xiaohui xiaohui@intel.com
Signed-off-by: Zhao Yu yzhao81...@gmail.com
Reviewed-by: Jeff Dike jd...@linux.intel.com
---
include/linux/skbuff.h |4 +++-
net/core/skbuff.c
From: Xin Xiaohui xiaohui@intel.com
If device is in this zero-copy mode first, we cannot handle this,
so fail it. This patch is for this.
If bonding is created first, and one of the device will be in zero-copy
mode, this will be handled by mp device. It will first check if all the
slaves
From: Xin Xiaohui xiaohui@intel.com
The hook is called in __netif_receive_skb().
Signed-off-by: Xin Xiaohui xiaohui@intel.com
Signed-off-by: Zhao Yu yzhao81...@gmail.com
Reviewed-by: Jeff Dike jd...@linux.intel.com
---
net/core/dev.c | 40
1
From: Xin Xiaohui xiaohui@intel.com
The patch add mp(mediate passthru) device, which now
based on vhost-net backend driver and provides proto_ops
to send/receive guest buffers data from/to guest vitio-net
driver.
It also exports async functions which can be used by other
drivers like macvtap
From: Xin Xiaohui xiaohui@intel.com
This example is made on ixgbe driver.
It provides API is_rx_buffer_mapped_as_page() to indicate
if the driver use napi_gro_frags() interface or not.
The example allocates 2 pages for DMA for one ring descriptor
using netdev_alloc_page(). When packets is
From: Xin Xiaohui xiaohui@intel.com
This example is made on ixgbe driver which using napi_gro_frags().
It can get buffers from guest side directly using netdev_alloc_page()
and release guest buffers using netdev_free_page().
Signed-off-by: Xin Xiaohui xiaohui@intel.com
---
We provide an zero-copy method which driver side may get external
buffers to DMA. Here external means driver don't use kernel space
to allocate skb buffers. Currently the external buffer can be from
guest virtio-net driver.
The idea is simple, just to pin the guest VM user space and then
let host
From: Xin Xiaohui xiaohui@intel.com
The vhost-net backend now only supports synchronous send/recv
operations. The patch provides multiple submits and asynchronous
notifications. This is needed for zero-copy case.
Signed-off-by: Xin Xiaohui xiaohui@intel.com
---
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