Hi, all,
I am working with switching QEMU from running in KVM mode to QEMU
emulatoin mode dynamically.
Intuitively, if the snapshot created using savevm in kvm mode can
be used by the loadvm command in QEMU emulator mode, the switchment
could makes use of this. I tried to do so. However, it
On Mon, Mar 29, 2010 at 11:31:13AM +0100, Athanasius wrote:
On Sun, Mar 28, 2010 at 01:46:35PM +0200, Sebastian Hetze wrote:
this message appeared in the KVM guest kern.log last night:
Mar 27 22:35:30 guest kernel: [260041.559462] Clocksource tsc unstable
(delta = -4398046474878 ns)
Hi everybody,
This patchset is intended to provide a start for implementing the
emulation of the AMD IOMMU. For those who aren't aware yet, I intend
to participate as a student in GSoC 2010.
The patches are meant to be applied on top of qemu-kvm.
In short, this demonstrates a mechanism of
We mustn't assume qemu_realloc() returns the same pointer in
acpi_table_add(). Therefore, 'p' might be invalid if it's relative to
the old value of acpi_tables.
Signed-off-by: Eduard - Gabriel Munteanu eduard.munte...@linux360.ro
---
hw/acpi.c |7 ---
1 files changed, 4 insertions(+), 3
We'd like to let emulation code build and insert ACPI tables at bootup,
without depending on hacking the BIOS code. This will be used to provide
an IVRS table for emulating the AMD IOMMU, for instance.
This splits acpi_table_add(), retaining the old behavior of inserting
cmdline-supplied tables
hw/iommu.c concerns the SPARC IOMMU. However we intend to implement the
AMD IOMMU, which could lead to confusion unless we rename the former.
Signed-off-by: Eduard - Gabriel Munteanu eduard.munte...@linux360.ro
---
Makefile.target |2 +-
hw/{iommu.c = sparc_iommu.c} |0
This adds newlines in acpi_checksum() to separate the declarations, the
body and the return statement.
Signed-off-by: Eduard - Gabriel Munteanu eduard.munte...@linux360.ro
---
hw/acpi.c |2 ++
1 files changed, 2 insertions(+), 0 deletions(-)
diff --git a/hw/acpi.c b/hw/acpi.c
index
The whole table must sum to zero. We need to ignore garbage in the
checksum field (i.e. consider it zero) when checksumming. It is
legitimate to have garbage there, as the checksum makes sense only when
the table has been filled.
Signed-off-by: Eduard - Gabriel Munteanu
This currently loads a non-functional IVRS ACPI table and provides a
skeleton for initializing the AMD IOMMU.
Signed-off-by: Eduard - Gabriel Munteanu eduard.munte...@linux360.ro
---
Makefile.target |1 +
hw/amd_iommu.c | 103 +++
hw/pc.c
This moves the table header definition into pc.h to allow other code to
build ACPI tables.
Signed-off-by: Eduard - Gabriel Munteanu eduard.munte...@linux360.ro
---
hw/acpi.c | 13 -
hw/pc.h | 13 +
2 files changed, 13 insertions(+), 13 deletions(-)
diff --git
Wenhao Xu xuwenhao2...@gmail.com wrote:
Hi, all,
¿ï½ I am working with switching QEMU from running in KVM mode to QEMU
emulatoin mode dynamically.
¿ï½ Intuitively, if the snapshot created using savevm in kvm mode can be
used by the loadvm command in QEMU emulator mode, the switchment could
On Tue, Mar 23, 2010 at 06:18:08PM -0300, Marcelo Tosatti wrote:
On Mon, Mar 22, 2010 at 01:51:20PM +0100, Sebastian Hetze wrote:
On Sun, Mar 21, 2010 at 05:17:38PM +0200, Avi Kivity wrote:
On 03/21/2010 04:55 PM, Sebastian Hetze wrote:
On Sun, Mar 21, 2010 at 02:19:40PM +0200, Avi Kivity
The patch let the profilers could be specified through configuration
file. kvm_stat was kept as the default profiler.
Signed-off-by: Jason Wang jasow...@redhat.com
---
client/tests/kvm/kvm_utils.py | 23 ++-
client/tests/kvm/tests_base.cfg.sample |2 +-
2 files
Hwclock is useful to do the basic testing of emulated RTC.
Signed-off-by: Jason Wang jasow...@redhat.com
---
client/tests/kvm/autotest_control/hwclock.control | 12
client/tests/kvm/tests_base.cfg.sample|3 +++
2 files changed, 15 insertions(+), 0 deletions(-)
On 03/30/2010 01:51 AM, Badari Pulavarty wrote:
Your io wait time is twice as long and your throughput is about half.
I think the qmeu block submission does an extra attempt at merging
requests. Does blktrace tell you anything interesting?
Yes. I see that in my testcase (2M
On 03/30/2010 04:59 AM, Xiao Guangrong wrote:
When we cached shadow page tables, one guest page table may have
many shadow pages, take below case for example:
(RO+U) --- |--| __ |--|
(W+U ) --- | GP1 | || GP2 |
(W+P ) --- |--| |-- |--|
There have 3 kinds
On Mon, Mar 29, 2010 at 2:59 PM, Avi Kivity a...@redhat.com wrote:
On 03/28/2010 10:48 PM, Cam Macdonell wrote:
On Sat, Mar 27, 2010 at 11:48 AM, Avi Kivitya...@redhat.com wrote:
On 03/26/2010 07:14 PM, Cam Macdonell wrote:
I'm not familiar with the uio internals, but for the
vhost-blk
- started w/ vhost-net, nice and modular
- qemu merging requests, so outperforming (throughput) for sequential write
- random read/write and sequential reads are comparable or better
- can't do e.g. qcow2
- spreading work across all cpu workqueues
- are there cases where we expect
On 03/30/2010 01:20 AM, Eduard - Gabriel Munteanu wrote:
+/* Ignore preexisting garbage in checksum. */
+acpi_hdr = (struct acpi_table_header *) data;
+sum -= acpi_hdr-checksum;
+
return (-sum) 0xff;
Wouldn't it be cleaner to adjust the acpi_checksum definition to take
and
Hi,
I'm trying to use ioeventfds for notification between guests. After
assigning a handful of ioeventfds I was getting a no space left on
device error. The culprit seems to be that only 6 devices are
allowed for a guest on the kvm IO bus. The comment indicates a
somewhat low number was
On Tue, Mar 30, 2010 at 10:08:28AM +0200, Sebastian Hetze wrote:
On Mon, Mar 29, 2010 at 11:31:13AM +0100, Athanasius wrote:
I didn't see any such messages but I've had a recent experience with
the time on one KVM host leaping *forwards* approx. 5 and 2.5 hours in
two separate incidents.
Hi, Juan,
I am fresh to both QEMU and KVM. But so far, I notice that QEMU
uses KVM_SET_USER_MEMORY_REGION to set memory region that KVM can
use and uses cpu_register_physical_memory_offset to register the same
memory to QEMU emulator, which means QEMU and KVM use the same host
virtual memory.
On 3/30/10, Eduard - Gabriel Munteanu eduard.munte...@linux360.ro wrote:
hw/iommu.c concerns the SPARC IOMMU. However we intend to implement the
AMD IOMMU, which could lead to confusion unless we rename the former.
I was also thinking of renaming the file some time ago. The correct
name would
- Jason Wang jasow...@redhat.com wrote:
The patch let the profilers could be specified through configuration
file. kvm_stat was kept as the default profiler.
Looks good. Some minor style comments:
Signed-off-by: Jason Wang jasow...@redhat.com
---
client/tests/kvm/kvm_utils.py
Apologies if you received multiple copies of this message.
=
CALL FOR PAPERS
5th Workshop on
Virtualization in High-Performance Cloud Computing
VHPC'10
as part of Euro-Par 2010, Island of Ischia-Naples, Italy
On Tuesday 30 March 2010 10:08:28 Sebastian Hetze wrote:
On Mon, Mar 29, 2010 at 11:31:13AM +0100, Athanasius wrote:
On Sun, Mar 28, 2010 at 01:46:35PM +0200, Sebastian Hetze wrote:
this message appeared in the KVM guest kern.log last night:
Mar 27 22:35:30 guest kernel:
This patch adds mergeable receive buffer support to qemu-kvm,
to allow enabling it when vhost_net supports it.
It also adds a missing call to vhost_net_ack_features() to
push acked features to vhost_net.
The patch is relative to Michael Tsirkin's qemu-kvm git tree.
On Tue, Mar 30, 2010 at 08:06:36PM +0300, Blue Swirl wrote:
On 3/30/10, Eduard - Gabriel Munteanu eduard.munte...@linux360.ro wrote:
hw/iommu.c concerns the SPARC IOMMU. However we intend to implement the
AMD IOMMU, which could lead to confusion unless we rename the former.
I was also
On 03/30/10 07:04, Beinicke, Thomas wrote:
On Tuesday 30 March 2010 10:08:28 Sebastian Hetze wrote:
On Mon, Mar 29, 2010 at 11:31:13AM +0100, Athanasius wrote:
On Sun, Mar 28, 2010 at 01:46:35PM +0200, Sebastian Hetze wrote:
this message appeared in the KVM guest kern.log
Hello Eduard,
On Tue, Mar 30, 2010 at 11:20:01AM +0300, Eduard - Gabriel Munteanu wrote:
This patchset is intended to provide a start for implementing the
emulation of the AMD IOMMU. For those who aren't aware yet, I intend
to participate as a student in GSoC 2010.
Great. This is a good
On 3/30/10, Joerg Roedel j...@8bytes.org wrote:
On Tue, Mar 30, 2010 at 08:06:36PM +0300, Blue Swirl wrote:
On 3/30/10, Eduard - Gabriel Munteanu eduard.munte...@linux360.ro wrote:
hw/iommu.c concerns the SPARC IOMMU. However we intend to implement the
AMD IOMMU, which could lead to
On Tue, Mar 30, 2010 at 11:00:10PM +0300, Blue Swirl wrote:
On 3/30/10, Joerg Roedel j...@8bytes.org wrote:
On Tue, Mar 30, 2010 at 08:06:36PM +0300, Blue Swirl wrote:
On 3/30/10, Eduard - Gabriel Munteanu eduard.munte...@linux360.ro
wrote:
hw/iommu.c concerns the SPARC IOMMU.
OK, thanks for that. Clearly something wrong with my installation. At
least now I know it is possible I can keep fiddling until it works.
Richard
On 30/03/10 03:12, Chris Wright wrote:
* Richard Simpson (rs1...@huskydog.org.uk) wrote:
So, is there any way of having the nx bit and the
On 3/30/10, Eduard - Gabriel Munteanu eduard.munte...@linux360.ro wrote:
This currently loads a non-functional IVRS ACPI table and provides a
skeleton for initializing the AMD IOMMU.
Signed-off-by: Eduard - Gabriel Munteanu eduard.munte...@linux360.ro
---
Makefile.target |1 +
2010/3/30 Chris Wright chr...@redhat.com:
* Kenni Lund (ke...@kelu.dk) wrote:
Client dmesg: http://pastebin.com/uNG4QK5j
Host dmesg: http://pastebin.com/jZu3WKZW
I just verified it and I do get the call trace in the host (which
disables IRQ 19, used by the PCI USB card), exactly at the same
With qemu-kvm 0.12.3 used on 2.6.34-rc3, this command:
qemu-kvm -m 1500 -drive
file=/srv/kvm/images/im1.qcow2,if=virtio,cache=none,index=0,boot=on -drive
file=/srv/kvm/images/im1-backup.qcow2,if=virtio,cache=none,index=1 -net
nic,vlan=0,model=virtio,macaddr=F2:4A:51:41:B1:AA -net
On 31.03.2010, at 00:27, Kenni Lund wrote:
2010/3/30 Chris Wright chr...@redhat.com:
* Kenni Lund (ke...@kelu.dk) wrote:
Client dmesg: http://pastebin.com/uNG4QK5j
Host dmesg: http://pastebin.com/jZu3WKZW
I just verified it and I do get the call trace in the host (which
disables IRQ 19,
Hi,
booting 32bit guest on 32bit host on AMD system gives me the following
warning when KVM is instructed to boot as SMP:
CPU0: AMD QEMU Virtual CPU version 0.9.1 stepping 03
Booting Node 0, Processors #1
Initializing CPU#1
Leaving ESR disabled.
Mapping cpu 1 to node 0
[ cut
On Tuesday 30 March 2010 06:03:02 pm Jiri Kosina wrote:
Hi,
booting 32bit guest on 32bit host on AMD system gives me the following
warning when KVM is instructed to boot as SMP:
This has been discussed before (fairly recently). Subject was tainted Linux
kernel in default SMP QEMU/KVM
This patch increases the current hardcoded limit of NR_IOBUS_DEVS
from 6 to 200. We are hitting this limit when creating a guest with more
than 1 virtio-net device using vhost-net backend. Each virtio-net
device requires 2 such devices to service notifications from rx/tx queues.
Signed-off-by:
2010/3/31 Alexander Graf ag...@suse.de:
On 31.03.2010, at 00:27, Kenni Lund wrote:
2010/3/30 Chris Wright chr...@redhat.com:
* Kenni Lund (ke...@kelu.dk) wrote:
Client dmesg: http://pastebin.com/uNG4QK5j
Host dmesg: http://pastebin.com/jZu3WKZW
I just verified it and I do get the call
* Kenni Lund (ke...@kelu.dk) wrote:
2010/3/30 Chris Wright chr...@redhat.com:
* Kenni Lund (ke...@kelu.dk) wrote:
Client dmesg: http://pastebin.com/uNG4QK5j
Host dmesg: http://pastebin.com/jZu3WKZW
I just verified it and I do get the call trace in the host (which
disables IRQ 19, used
2.6.32-stable review patch. If anyone has any objections, please let us know.
--
From: Thomas Gleixner t...@linutronix.de
commit 41d2e494937715d3150e5c75d01f0e75ae899337 upstream.
The hrtimer_interrupt hang logic adjusts min_delta_ns based on the
execution time of the hrtimer
2010/3/31 Chris Wright chr...@redhat.com:
So I suppose I'll need to get rid of this shared IRQ before I can
conclude anything on the patch in git. Hmm, is there some cleaver way
of fixing this in Linux, or do I have to fix it by changing BIOS IRQ
settings, disabling hardware and/or moving the
* Kenni Lund (ke...@kelu.dk) wrote:
2010/3/31 Alexander Graf ag...@suse.de:
The easiest thing coming to mind is to unplug the ivtv card for now. It's
really only to verify that the patch does something useful :-).
This was not sufficient. Same issue with the ivtv card unplugged...if
I
This patch adds support for the Mergeable Receive Buffers feature to
vhost_net.
Changes:
1) generalize descriptor allocation functions to allow multiple
descriptors per packet
2) add socket peek to know datalen at buffer allocation time
3) change
* Kenni Lund (ke...@kelu.dk) wrote:
2010/3/31 Chris Wright chr...@redhat.com:
So I suppose I'll need to get rid of this shared IRQ before I can
conclude anything on the patch in git. Hmm, is there some cleaver way
of fixing this in Linux, or do I have to fix it by changing BIOS IRQ
On Wed, Mar 31, 2010 at 01:03:02AM +0200, Jiri Kosina wrote:
Hi,
booting 32bit guest on 32bit host on AMD system gives me the following
warning when KVM is instructed to boot as SMP:
I guess these warnings could be just disabled. With nearly everyone
using multi-core these days they are
hi,
I am running official kvm-88 release with my own 32-bit .so library
dlopen'ed by qemu-kvm. So it has 32-bit qemu-kvm on 64-bit kvm kernel
module. Everything works great but after a while the guest (winxp
32-bit) hard hangs and kvm_stat shows 0.
So, is there any way to trace back when the
Signed-off-by: Michael Goldish mgold...@redhat.com
---
client/tests/kvm/kvm_vm.py |1 +
1 files changed, 1 insertions(+), 0 deletions(-)
diff --git a/client/tests/kvm/kvm_vm.py b/client/tests/kvm/kvm_vm.py
index 921414d..047505a 100755
--- a/client/tests/kvm/kvm_vm.py
+++
On 03/30/2010 10:40 PM, Joerg Roedel wrote:
In short, this demonstrates a mechanism of inserting ACPI tables without
modifying SeaBIOS or other BIOS implementations. I also have a SeaBIOS
equivalent, but I think this approach is better, at least at the moment.
I like the approach
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