repository: C:/dev/kvm-guest-drivers-windows
branch: master
commit d26380f3b3943bb25b8b1a4e12d3c4fa1118898f
Author: Yan Vugenfirer yvuge...@redhat.com
Date: Wed Oct 28 12:24:15 2009 +0200
[WIN-GUEST-DRIVERS] viostor driver. remove trailing white spaces
Signed-off-by: Vadim
- Dor Laor dl...@redhat.com wrote:
On 10/12/2009 05:28 PM, Lucas Meneghel Rodrigues wrote:
Hi Michael, I am reviewing your patchset and have just a minor
remark
to make here:
On Wed, Oct 7, 2009 at 2:54 PM, Michael Goldishmgold...@redhat.com
wrote:
This patch adds a new test
Thanks for catching this.
While we're at it, why not remove the 2 occurrences of re.IGNORECASE
that have no effect?
We can also replace re.search(regex, o) with the slightly shorter
regex.search(o), but that's just a cosmetic change.
- Original Message -
From: Chen Cao k...@redhat.com
To:
On Tue, Oct 27, 2009 at 02:54:40PM -0400, Gregory Haskins wrote:
Michael S. Tsirkin wrote:
On Mon, Oct 26, 2009 at 12:22:08PM -0400, Gregory Haskins wrote:
IRQFD currently uses a deferred workqueue item to execute the injection
operation. It was originally designed this way because
On Mon, Oct 26, 2009 at 12:22:03PM -0400, Gregory Haskins wrote:
Certain GSI's support lockless injecton, but we have no way to detect
which ones at the GSI level. Knowledge of this attribute will be
useful later in the series so that we can optimize irqfd injection
paths for cases where we
On 10/27/2009 03:25 PM, Avi Kivity wrote:
On 10/27/2009 03:24 PM, Avi Kivity wrote:
Worked for me - getting to the initial prompt. Do you have
CONFIG_USER_RETURN_NOTIFIER=y
in your .config?
If you do, send your own .config, will try to reproduce.
As I can't reproduce it, can you
On 10/28/2009 10:11 AM, Hannes Reinecke wrote:
The problem is I don't have any documentation for the LSI parallel
SCSI controller. So I don't know if and in what shape I/O is passed
down, nor anything else. And as the SCSI disk emulation is really
tied into the LSI parallel SCSI controller, any
On Wed, Oct 28, 2009 at 09:11:29AM +0100, Hannes Reinecke wrote:
The problem is I don't have any documentation for the LSI parallel
SCSI controller. So I don't know if and in what shape I/O is passed
down, nor anything else. And as the SCSI disk emulation is really
tied into the LSI parallel
On Tue, Oct 27, 2009 at 04:28:59PM +0100, Hannes Reinecke wrote:
Other drives might want to use SCSI command emulation without
going through the SCSI disk abstraction, as this imposes too
many limits on the emulation.
Might be a good idea to move something like this first into the series
and
On Wed, Oct 28, 2009 at 03:20:41AM -0400, Michael Goldish wrote:
Thanks for catching this.
While we're at it, why not remove the 2 occurrences of re.IGNORECASE
that have no effect?
I just chose to ignore the code that does not break the tests.
I'd like to send a patch to remove the 2
Since the mac address is (changed to) lowercase and the output of
'arping' is in uppercase, we need re.IGNORECASE in the re.compile.
And substitute re.search(regex, 0, ...) with regex.search(o), as
Michael Goldish (mgold...@redhat.com) suggested.
Signed-off-by: Cao, Chen k...@redhat.com
---
On 10/27/2009 07:50 PM, Michael S. Tsirkin wrote:
Can the value of irqchip_in_kernel be changed by userspace
after we have checked it? If yes, this check won't help ...
A change from false to true is possible, but not the reverse.
--
error compiling committee.c: too many arguments to
On 10/27/2009 05:33 PM, Marcelo Tosatti wrote:
Michael reported a qemu-kvm SIGSEGV at shutdown:
Program received signal SIGSEGV, Segmentation fault.
[Switching to Thread 0x411d0940 (LWP 14446)]
0x0040afb4 in qemu_mod_timer (ts=0x19f0fd0,
expire_time=62275467335)
at
I think this patch is a good idea. Comments:
- If we've decided to put all the configuration in config files
(rather than the control file) let's split up the main one into
kvm_test_library.cfg and kvm_tests.cfg.sample. The latter should
look like this:
include kvm_test_library.cfg
include
On 10/27/2009 06:41 PM, Chris Lalancette wrote:
This patch series aims to get kdump working inside a KVM guest.
The current problem with using kdump is that KVM always delivers
PIT interrupts to the BSP, and the BSP only. While this is
technically allowed by the MPS spec, most motherboards
Marcelo Tosatti wrote:
On Tue, Oct 27, 2009 at 05:41:07PM +0100, Chris Lalancette wrote:
This patch is the main point of the series. In order for
kdump to properly work inside a KVM guest, we need to make
sure that all VCPUs in virtual wire APIC mode get kicked
to try and pick up the timer
On Wed, Oct 28, 2009 at 12:20:42PM +0200, Michael S. Tsirkin wrote:
On Wed, Oct 28, 2009 at 11:32:00AM +0200, Avi Kivity wrote:
On 10/27/2009 07:50 PM, Michael S. Tsirkin wrote:
Can the value of irqchip_in_kernel be changed by userspace
after we have checked it? If yes, this check won't
On 10/28/2009 12:13 PM, Chris Lalancette wrote:
The kick from i8254 code is pretty bad, as you mention. I forget why it
is needed at all - shouldn't kvm_set_irq() end up kicking the correct
As I understand it, that's not quite how it works. From what I can see, what
happens is that
On 10/28/2009 12:20 PM, Michael S. Tsirkin wrote:
Hmm. If we want to rely on this, we have to play with
memory barriers to write/read it. Doable, but hard to get right.
Can we always have the irqchip object exist?
It doesn't use a lot of memory, does it?
Maybe have it inline, save an extra
On Wed, Oct 28, 2009 at 12:30:39PM +0200, Gleb Natapov wrote:
On Wed, Oct 28, 2009 at 12:20:42PM +0200, Michael S. Tsirkin wrote:
On Wed, Oct 28, 2009 at 11:32:00AM +0200, Avi Kivity wrote:
On 10/27/2009 07:50 PM, Michael S. Tsirkin wrote:
Can the value of irqchip_in_kernel be changed by
On Wed, Oct 28, 2009 at 12:32:24PM +0200, Michael S. Tsirkin wrote:
On Wed, Oct 28, 2009 at 12:30:39PM +0200, Gleb Natapov wrote:
On Wed, Oct 28, 2009 at 12:20:42PM +0200, Michael S. Tsirkin wrote:
On Wed, Oct 28, 2009 at 11:32:00AM +0200, Avi Kivity wrote:
On 10/27/2009 07:50 PM,
Hi,
In order to support SCSI command emulation I had to update /
patch up the existing SCSI disk support. This might be
not to everyones taste, so I'm open to alternative
suggestions.
But I certainly do _not_ want to update the SCSI disk
emulation, as this is really quite tied to the SCSI
One thing that just occurred to me is, if we have a test config
library as you said, it's perfectly possible to put the actual test
set definitions and other config files inside the control file as
strings. This way one can control configuration inside the control file,
making it more convenient
This release has been tested on x86 down to host kernel 2.6.27 and
builds down to 2.6.24. Building against older kernels is expected to be
broken, but if anyone provides patches to fix it, I'm open to merge
them.
I am still not able to build with our 2.6.24 kernel.
./sync -v
Dietmar Maurer wrote:
This release has been tested on x86 down to host kernel 2.6.27 and
builds down to 2.6.24. Building against older kernels is expected to be
broken, but if anyone provides patches to fix it, I'm open to merge
them.
I am still not able to build with our 2.6.24 kernel.
Well, we use the ubuntu tree:
http://kernel.ubuntu.com/git?p=ubuntu/ubuntu-hardy.git;a=summary
They have a few more patches applied:
http://kernel.ubuntu.com/git?p=ubuntu/ubuntu-hardy.git;a=history;f=include/asm-x86/msr.h;h=cfe169475b5b50a448326ef3c34f50100ac83faf;hb=HEAD
Seems the last two
Dietmar Maurer wrote:
So I can simply skip 'make sync'?
The release tarball contains all required sources (as described, they
were obtained from 2.6.31.5). So you do have to sync,
So I need to run 'make sync'?
Ouch. Of course I meant you do *not* have to sync.
Practically, there is no
On Wed, Oct 28, 2009 at 11:21:42AM +0100, Chris Lalancette wrote:
Marcelo Tosatti wrote:
On Tue, Oct 27, 2009 at 05:41:07PM +0100, Chris Lalancette wrote:
This patch is the main point of the series. In order for
kdump to properly work inside a KVM guest, we need to make
sure that all
Dietmar Maurer wrote:
Well, we use the ubuntu tree:
http://kernel.ubuntu.com/git?p=ubuntu/ubuntu-hardy.git;a=summary
They have a few more patches applied:
Do you know if there is anything to tell this ubuntu-patched kernel
apart from a vanilla version? If so, we could adjust the check in
x86/external-module-compat.h to avoid this breakage.
no, not really
Locally, you could
simply comment out the double definition for now.
Yes, that will
Avi Kivity wrote:
On 10/26/2009 05:38 PM, Gregory Haskins wrote:
Instead of a lockless attribute, how about a -set_atomic() method.
For
msi this can be the same as -set(), for non-msi it can be a function
that schedules the work (which will eventually call -set()).
The benefit is that we
Michael S. Tsirkin wrote:
On Tue, Oct 27, 2009 at 02:54:40PM -0400, Gregory Haskins wrote:
Michael S. Tsirkin wrote:
On Mon, Oct 26, 2009 at 12:22:08PM -0400, Gregory Haskins wrote:
IRQFD currently uses a deferred workqueue item to execute the injection
operation. It was originally designed
Michael S. Tsirkin wrote:
On Mon, Oct 26, 2009 at 12:22:03PM -0400, Gregory Haskins wrote:
Certain GSI's support lockless injecton, but we have no way to detect
which ones at the GSI level. Knowledge of this attribute will be
useful later in the series so that we can optimize irqfd injection
On 10/28/2009 03:19 PM, Gregory Haskins wrote:
Yes, and it also contains the work_struct.
What if we make the work_struct (and any additional state) part of the
set_atomic() argument list? Does it simplify things?
Hmmm, that might not, but we could do a kmalloc(GFP_ATOMIC) for such
Avi Kivity wrote:
On 10/28/2009 03:19 PM, Gregory Haskins wrote:
Yes, and it also contains the work_struct.
What if we make the work_struct (and any additional state) part of the
set_atomic() argument list? Does it simplify things?
Hmmm, that might not, but we could do a
Hi,
From a really quick view fixing up the data xfer code paths doesn't
look too bad. Think I'll give it a try.
Oh well. The interface pretty obviously designed for the esp, which is
the oldest scsi adapter in qemu ...
ESP: There is no scatter-gather support in the hardware. So for
Hey,
Below is a pull request to merge latest qemu.git/master into
qemu-kvm.git/next
The most notable thing here is that all our networking changes are now
upstream - i.e. there are no longer qemu-kvm specific changes to
net.[ch], net-queue.[ch], savevm.c and hw/virtio-net.c
This has resulted in
Hi,
There seems to be a bug in the VirtIO guest device driver (tested with
2.6.31.5 kernel).
The bug causes frequent excessive VIRTIO_PCI_ISR reads (causing PIO
vm-exits) for a device that is not being used.
The setup I’m using includes two VirtIO block devices – vda vdb.
While running heavy
I have been tracking down what I thought was a KVM related network
issue for a while, however it appears it could be a hardware issue.
The symptom is that data in network packets gets corrupted, before
the checksum is calculated. This means the remote host can get
corrupted data, with no way to
Saul Tamari wrote:
Hi,
There seems to be a bug in the VirtIO guest device driver (tested with
2.6.31.5 kernel).
The bug causes frequent excessive VIRTIO_PCI_ISR reads (causing PIO
vm-exits) for a device that is not being used.
The setup I’m using includes two VirtIO block devices – vda vdb.
Anthony Liguori wrote:
Saul Tamari wrote:
Hi,
There seems to be a bug in the VirtIO guest device driver (tested with
2.6.31.5 kernel).
The bug causes frequent excessive VIRTIO_PCI_ISR reads (causing PIO
vm-exits) for a device that is not being used.
The setup I’m using includes two VirtIO
yep!
What do I have to do to turn on MSI-x?
Make this PCI capability in QEMU's virtio??
Thanks,
Saul
On Wed, Oct 28, 2009 at 4:59 PM, Michael Tokarev m...@tls.msk.ru wrote:
[snip]
So the next question is how to use MSI-x.. ;)
Thanks!
/mjt
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Thanks. In pursuing this suggestion I discovered that I also can't make
new XP VMs. Setup fails with the disk may be damaged.
The image was created with
qemu-img create xp_new.img 13G
And the setup command is
kvm -cdrom xp/xp_pro.iso -hda xp_new.img -boot d -m 512 -no-acpi -usb
-usbdevice
On 10/28/2009 05:27 PM, Andrew Olney wrote:
Thanks. In pursuing this suggestion I discovered that I also can't
make new XP VMs. Setup fails with the disk may be damaged.
The image was created with
qemu-img create xp_new.img 13G
And the setup command is
kvm -cdrom xp/xp_pro.iso -hda
The current implementation of get_user_desc() sign extends
the return value because of integer promotion rules. For
the most part, this doesn't matter, because the top bit of
base2 is usually 0. If, however, that bit is 1, then the
entire value will be 0x... which is probably not what
the
On 10/28/2009 5:27 PM, Andrew Olney wrote:
Thanks. In pursuing this suggestion I discovered that I also can't
make new XP VMs. Setup fails with the disk may be damaged.
The image was created with
qemu-img create xp_new.img 13G
And the setup command is
kvm -cdrom xp/xp_pro.iso -hda
On Tue, Oct 27, 2009 at 09:36:18AM -0700, Shirley Ma wrote:
Hello Michael,
On Tue, 2009-10-27 at 17:27 +0200, Michael S. Tsirkin wrote:
Possibly GFP_ATOMIC allocations in vring_add_indirect are failing?
Is there a chance you are tight on guest memory for some reason?
with vhost, virtio
- Lucas Meneghel Rodrigues l...@redhat.com wrote:
One thing that just occurred to me is, if we have a test config
library as you said, it's perfectly possible to put the actual test
set definitions and other config files inside the control file as
strings. This way one can control
BTW.
The kernel I'm using has MSI-x support enabled and this same thing
also occurs on the default FC11 2.6.29.4-167 kernel.
Below is a partial dump of 'lspci -vv'.
I only pasted the output from the virtio networking device and from
the virtio block device.
You can notice that the block device
On Tue, 2009-10-27 at 22:58 +0200, Michael S. Tsirkin wrote:
How large is large here? I usually allocate 1G.
I used to have 512, for this run I allocated 1G.
I do see performance improves to 3xxxMb/s, and occasionally
reaches 40xxMb/s.
This is same as userspace, isn't it?
A little bit
One more comment on this patch:
If you plan to make 'noinstall' the default build mode, then let's
not run the build test at all by default. If we run it with 'noinstall',
it will just run the preprocessor and postprocessor, and those will kill
any living VMs because no VMs are required for the
On Wed, Oct 28, 2009 at 1:43 PM, Michael Goldish mgold...@redhat.com wrote:
Sounds great, except it won't allow you to debug your configuration
using kvm_config.py. So the question now is what's more important --
the ability to debug or ease of use when running from the server.
Here we have 2
On Wed, Oct 28, 2009 at 1:57 PM, Michael Goldish mgold...@redhat.com wrote:
One more comment on this patch:
If you plan to make 'noinstall' the default build mode, then let's
not run the build test at all by default. If we run it with 'noinstall',
it will just run the preprocessor and
On 10/28/2009 04:01 PM, Jan Kiszka wrote:
Avi Kivity wrote:
On 10/27/2009 03:25 PM, Avi Kivity wrote:
On 10/27/2009 03:24 PM, Avi Kivity wrote:
Worked for me - getting to the initial prompt. Do you have
CONFIG_USER_RETURN_NOTIFIER=y
in your .config?
If you
Gleb Natapov g...@redhat.com wrote on 25/10/2009 11:44:31:
From:
Gleb Natapov g...@redhat.com
To:
Orit Wasserman/Haifa/i...@ibmil
Cc:
Abel Gordon/Haifa/i...@ibmil, aligu...@us.ibm.com, Ben-Ami Yassour1/
Haifa/i...@ibmil, kvm@vger.kernel.org, md...@us.ibm.com, Muli Ben-
On Wed, Oct 28, 2009 at 07:46:55AM -0700, Rik van Riel wrote:
I have been tracking down what I thought was a KVM related network
issue for a while, however it appears it could be a hardware issue.
The symptom is that data in network packets gets corrupted, before
the checksum is calculated.
Hello Michael,
On Wed, 2009-10-28 at 17:39 +0200, Michael S. Tsirkin wrote:
Here's another hack to try. It will break raw sockets,
but just as a test:
This patch looks better than previous one for guest to host TCP_STREAM
performance. The transmission queue full still exists, but TCP_STREAM
On Tue, Oct 27, 2009 at 09:36:18AM -0700, Shirley Ma wrote:
Hello Michael,
On Tue, 2009-10-27 at 17:27 +0200, Michael S. Tsirkin wrote:
Possibly GFP_ATOMIC allocations in vring_add_indirect are failing?
Is there a chance you are tight on guest memory for some reason?
with vhost, virtio
Thanks guys, applied!
On Wed, Oct 28, 2009 at 7:30 AM, Cao, Chen k...@redhat.com wrote:
On Wed, Oct 28, 2009 at 03:20:41AM -0400, Michael Goldish wrote:
Thanks for catching this.
While we're at it, why not remove the 2 occurrences of re.IGNORECASE
that have no effect?
I just chose to ignore
On Wed, Oct 28, 2009 at 09:45:37AM -0700, Shirley Ma wrote:
Hello Michael,
On Wed, 2009-10-28 at 17:39 +0200, Michael S. Tsirkin wrote:
Here's another hack to try. It will break raw sockets,
but just as a test:
This patch looks better than previous one for guest to host TCP_STREAM
Hi,
I've encountered a situation in which I would like to allow userspace
to set the MSRs which KVM should not emulate and instead implement
these as no-ops.
I have not seen any work in this space, furthermore there is an item
on the KVM TODO that is very similar to what I'm trying to do.
The
Dietmar Maurer wrote:
Do you know if there is anything to tell this ubuntu-patched kernel
apart from a vanilla version? If so, we could adjust the check in
x86/external-module-compat.h to avoid this breakage.
no, not really
OK, but I think I have a plan B. The next kvm-kmod release should
I've been trying to understand why the performance from guest to guest over a
10GbE link using virtio, as measured by netperf, dramatically decreases when
the socket buffer size is increased on the receiving guest. This is an Intel
X3210 4-core 2.13GHz system running RHEL5.4. I don't see this
On Monday 26 October 2009, Shirley Ma wrote:
On Sun, 2009-10-25 at 11:11 +0200, Michael S. Tsirkin wrote:
What is vnet0?
That's a tap interface. I am binding raw socket to a tap interface and
it doesn't work. Does it support?
Is the tap device connected to a bridge as you'd normally do
- Lucas Meneghel Rodrigues l...@redhat.com wrote:
On Wed, Oct 28, 2009 at 1:43 PM, Michael Goldish mgold...@redhat.com
wrote:
Sounds great, except it won't allow you to debug your configuration
using kvm_config.py. So the question now is what's more important
--
the ability to
Hello Miachel,
On Wed, 2009-10-28 at 18:53 +0200, Michael S. Tsirkin wrote:
what exactly do you mean by transmission queue size?
tx_queue_len?
I think what should help with transmission queue full is
actually sndbuf parameter for tap in qemu.
I didn't see my email out, I resend the response
Hello Arnd,
On Wed, 2009-10-28 at 18:46 +0100, Arnd Bergmann wrote:
You can probably connect it like this:
qemu - vhost_net - vnet0 == /dev/tun - qemu
To connect two guests.
I've also used a bidirectional pipe before, to connect two tap
interfaces to each other. However, if you want to
* Michael Goldish mgold...@redhat.com [2009-10-28 10:43]:
- Lucas Meneghel Rodrigues l...@redhat.com wrote:
One thing that just occurred to me is, if we have a test config
library as you said, it's perfectly possible to put the actual test
set definitions and other config files
- Lucas Meneghel Rodrigues l...@redhat.com wrote:
A new program that evaluates hash strings, intended
to help kvm autotest administrators was added, cd_hash.
Usage: cd_hash.py [options]
Options:
-h, --helpshow this help message and exit
-i FILENAME, --iso=FILENAME
Is this interface supposed to support changing MSR handing at runtime
or is the ioctl only meant to be called prior to KVM_RUN?
Thanks,
Richard
On Wed, Oct 28, 2009 at 1:23 PM, David Windsor dwind...@gmail.com wrote:
Hi,
I've encountered a situation in which I would like to allow userspace
Obviously, people tend to extend this header at the bottom - more or
less blindly. Ensure that deprecated stuff gets its own corner again by
moving things to the top. Also add some comments and reindent IOCTLs to
make them more readable and reduce the risk of number collisions.
Signed-off-by: Jan
I believe that we have identified a regression in qemu-kvm-0.11.0.
The kvm process crashes for older guests with virtio networking, when
the guest's incoming network connection is saturated. The subject
guest is Ubuntu 8.04 Hardy, 2.6.24 kernel with virtio backports.
For your convenience, I
Am Wed 28 Oct 2009 02:58:33 PM CET schrieb Gerd Hoffmann kra...@redhat.com:
Hi,
From a really quick view fixing up the data xfer code paths doesn't
look too bad. Think I'll give it a try.
Oh well. The interface pretty obviously designed for the esp, which is
the oldest scsi adapter in
On Wed, Oct 28, 2009 at 2:22 PM, Dustin Kirkland kirkl...@canonical.com wrote:
I have not reproduced the problem:
a) by saturating the guest's outgoing network
b) with newer guests ( = 2.6.27 )
c) on kvm-84 on the host
d) or by using e1000, or rtl8139 NIC models.
:-Dustin
--
To
You do have a point. I will fix both programs to not use flags and
send it to the mailing list.
On Wed, Oct 28, 2009 at 4:23 PM, Michael Goldish mgold...@redhat.com wrote:
- Lucas Meneghel Rodrigues l...@redhat.com wrote:
A new program that evaluates hash strings, intended
to help kvm
Ryan, Michael:
I absolutely agree that the ability to debug stuff is important, but
the ability to make things straightforward to use from the web
interface or cli is also important. A longer term goal is to have our
test farm and make any developer able to schedule a job on the test
farm easily
Avi Kivity wrote:
On 10/28/2009 04:01 PM, Jan Kiszka wrote:
Avi Kivity wrote:
On 10/27/2009 03:25 PM, Avi Kivity wrote:
On 10/27/2009 03:24 PM, Avi Kivity wrote:
Worked for me - getting to the initial prompt. Do you have
CONFIG_USER_RETURN_NOTIFIER=y
in your
Otherwise kvm might attempt to dereference a NULL pointer.
Signed-off-by: Marcelo Tosatti mtosa...@redhat.com
Index: kvm/virt/kvm/irq_comm.c
===
--- kvm.orig/virt/kvm/irq_comm.c
+++ kvm/virt/kvm/irq_comm.c
@@ -243,6 +243,10 @@ void
Otherwise kvm might attempt to dereference a NULL pointer.
Signed-off-by: Marcelo Tosatti mtosa...@redhat.com
Index: kvm/arch/x86/kvm/x86.c
===
--- kvm.orig/arch/x86/kvm/x86.c
+++ kvm/arch/x86/kvm/x86.c
@@ -1893,6 +1893,9 @@ long
Otherwise kvm will leak memory on multiple KVM_CREATE_IRQCHIP.
Also serialize multiple accesses with kvm-lock.
Signed-off-by: Marcelo Tosatti mtosa...@redhat.com
Index: kvm/arch/x86/kvm/x86.c
===
--- kvm.orig/arch/x86/kvm/x86.c
+++
Addressing comments.
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It's OK to log the debug output when running the framework, but
Ryan says he makes heavy use of kvm_config.py, which means he may
not find this comfortable enough. Ryan, what do you think?
Another option is to allow editing any file from the web GUI in
addition to the control file.
I don't
Hello Michael,
When I am testing deferring skb allocation patch, I found this problem.
Simply removing and reloading guest virtio_net module would cause guest
exit with errors. It is easy to reproduce it:
[r...@localhost ~]# rmmod virtio_net
[r...@localhost ~]# modprobe virtio_net
It is intended to be used only during startup, typically by a launcher
that is aware which MSRs should be emulated as no-ops.
On Wed, Oct 28, 2009 at 2:28 PM, Richard Winthers rwinth...@gmail.com wrote:
Is this interface supposed to support changing MSR handing at runtime or is
the ioctl only
Hi all,
when changing the CPU from the default QEMU32 one to e.g. the n270 or the
core2duo no .NET apps will work under Windows XP as guest. Switching back
and everything is fine. The Pentium Emulation on the other side works fine!
The Application loads but it hangs with 99% CPU usage and
Hi all,
after several tests it seems that the interrupt assignment on the host
systems influences the kvm performance drastically. If eth0, video and usb
are on seperate interrupts the perfomance is way better than if they are
shared (that means on the same one).
Normally this should not
On Wed, Oct 28, 2009 at 4:13 PM, Erik Rull erik.r...@rdsoftware.de wrote:
Any Ideas what happens here? I also started applications that were NOT
started with the QEMU32 CPU to prevent a caching - same problem.
just a couple guesses:
- maybe there's some JIT'ed code cached somewhere in the
On Wed, Oct 28, 2009 at 11:42:56AM +0200, Avi Kivity wrote:
On 10/27/2009 05:33 PM, Marcelo Tosatti wrote:
Michael reported a qemu-kvm SIGSEGV at shutdown:
Program received signal SIGSEGV, Segmentation fault.
[Switching to Thread 0x411d0940 (LWP 14446)]
0x0040afb4 in qemu_mod_timer
With current upstream changes, VMX operation now relies on have the
user-notifiers infrastructure. This makes kvm-kmod use on older kernels
untenable.
I looked a bit at fixing the underlying problem by simulating the
user-return callback when we context switch, but it is uglier than I
would
On Wednesday 28 October 2009 16:13:37 Erik Rull wrote:
Hi all,
when changing the CPU from the default QEMU32 one to e.g. the n270 or the
core2duo no .NET apps will work under Windows XP as guest. Switching back
and everything is fine. The Pentium Emulation on the other side works fine!
On Wed, 2009-10-21 at 17:03 +0200, Alexander Graf wrote:
We need to run some KVM trampoline code in real mode. Unfortunately, real mode
only covers 8MB on Cell so we need to squeeze ourselves as low as possible.
Also, we need to trap interrupts to get us back from guest state to host state
On Wed, 2009-10-21 at 17:03 +0200, Alexander Graf wrote:
We need to access some VCPU fields from assembly code. In order to get
the proper offsets, we have to define them in asm-offsets.c.
Signed-off-by: Alexander Graf ag...@suse.de
Acked-by: Benjamin Herrenschmidt b...@kernel.crashing.org
On Wed, 2009-10-21 at 17:03 +0200, Alexander Graf wrote:
We want to be able to build KVM as a module. To enable us doing so, we
need some more exports from core Linux parts.
This patch exports all functions and variables that are required for KVM.
Signed-off-by: Alexander Graf
On Wed, 2009-10-21 at 17:03 +0200, Alexander Graf wrote:
For KVM we need to allocate a new context id, but don't really care about
all the mm context around it.
So let's split the alloc and destroy functions for the context id, so we can
grab one without allocating an mm context.
No
On Wed, 2009-10-21 at 17:03 +0200, Alexander Graf wrote:
For KVM we need to store some information in the PACA, so we
need to extend it.
This patch adds KVM SLB shadow related entries to the PACA and
a field that indicates if we're inside a guest.
Signed-off-by: Alexander Graf
On Wed, 2009-10-21 at 17:03 +0200, Alexander Graf wrote:
In order to access fields in the PACA from assembly code, we need
to generate offsets using asm-offsets.c.
So let's add the new PACA related bits, we just introduced!
Signed-off-by: Alexander Graf ag...@suse.de
Acked-by: Benjamin
On 29.10.2009, at 03:46, Benjamin Herrenschmidt wrote:
On Wed, 2009-10-21 at 17:03 +0200, Alexander Graf wrote:
We want to be able to build KVM as a module. To enable us doing so,
we
need some more exports from core Linux parts.
This patch exports all functions and variables that are
On Sun, 2009-10-25 at 15:01 +0200, Avi Kivity wrote:
On 10/23/2009 02:33 AM, Hollis Blanchard wrote:
On Wed, 2009-10-21 at 17:03 +0200, Alexander Graf wrote:
KVM for PowerPC only supports embedded cores at the moment.
While it makes sense to virtualize on small machines, it's even
Excerpts from Dustin Kirkland's message of Thu Oct 29 03:22:43 +0800 2009:
We're tracking this issue at:
* https://bugs.launchpad.net/ubuntu/+source/qemu-kvm/+bug/458521
I'll gladly review and test patches, or take pointers on where I might
look to solve this issue.
Try the following patch
On Wed, Oct 28, 2009 at 08:25:22PM +0100, Hannes Reinecke wrote:
I don't think we really need two modes.
My preferred interface here is to pass down scatter-gather lists down
with every xfer; this way it'll be the responsibility of the driver to
create the lists in the first place. If it has
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