Michael Tokarev wrote:
> René Pfeiffer wrote:
>> Hello!
>>
>> I just tested qemu-kvm-0.11.0 with the KVM module of kernel 2.6.31.1. I
>> noticed that the I/O performance of an unattended stock Debian Lenny
>> install dropped somehow. The test machines ran with kvm-88 and 2.6.30.x
>> before. The dif
On 10/12/2009 08:42 PM, Andrew Theurer wrote:
On Sun, 2009-10-11 at 07:19 +0200, Avi Kivity wrote:
On 10/09/2009 10:04 PM, Andrew Theurer wrote:
This is on latest master branch on kvm.git and qemu-kvm.git, running
12 Windows Server2008 VMs, and using oprofile. I ran again without
opr
On Monday, October 05, 2009 7:00 PM Avi Kivity wrote:
> On 09/29/2009 05:34 AM, Xu, Jiajun wrote:
>> Hi All,
>>
>> This Weekly KVM Testing Report against lastest kvm.git
>> 94252a58662dc4ca6191eac479efb40e0716865c and qemu-kvm.git
>> 5cc3cfb6c2254483ae324da407a13307fe7355f3.
>>
>> Qemu-kvm tree
Hi Tom,
On Mon, 2009-10-12 at 17:05 -0500, Tom Lendacky wrote:
> The recent change to QemuOpts for the -net nic option breaks specifying -net
> nic,... more than once. The net_init_nic function's return value in net.c is
> a table index, which is non-zero after the first time it is called. The
If command executed timeout, the return value of status could be None,
which is missed in judge statement:
if s:
...
Thanks Jason Wang for pointing this out.
Signed-off-by: Yolkfull Chow
---
client/tests/kvm/tests/pci_hotplug.py |2 +-
1 files changed, 1 insertions(+), 1 deletions(-)
d
Thanks, I already have this from Uwe.
Cheers,
Rusty.
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Start the tail thread only if the user specifies a non-None output_func or
termination_func.
Signed-off-by: Michael Goldish
---
client/tests/kvm/kvm_subprocess.py | 14 --
1 files changed, 12 insertions(+), 2 deletions(-)
diff --git a/client/tests/kvm/kvm_subprocess.py
b/client/t
close() will pass 'self' as a parameter to the hook functions, i.e. it will
call hook(self) instead of just hook(), thus allowing the use of unbound
methods rather than bound ones.
This allows us to avoid self referencing: if a bound method is used, a
reference to it is kept in the class instance,
Note that if a session has a tracking thread (i.e. if output_func or
termination_func are set to something other than None) then the session will
not be garbage collected (it must be closed explicitly by the test).
Signed-off-by: Michael Goldish
---
client/tests/kvm/kvm_subprocess.py |4
Otherwise some cpus may start executing code before others
are fully initialized.
Signed-off-by: Gleb Natapov
---
qemu-kvm.c | 26 --
1 files changed, 12 insertions(+), 14 deletions(-)
diff --git a/qemu-kvm.c b/qemu-kvm.c
index 62ca050..3765818 100644
--- a/qemu-kvm.c
- "Chen Cao" wrote:
> On Mon, Oct 12, 2009 at 09:07:45AM -0400, Michael Goldish wrote:
> > You're right, currently the sessions must be closed explicitly.
> > This is due to the fact that both qemu and ssh/telnet are handled by
> the
> > same code, and qemu has to keep running in the backgro
On Mon, Oct 12, 2009 at 10:53:26AM +0200, Avi Kivity wrote:
> On 10/06/2009 07:24 PM, Glauber Costa wrote:
>> When we migrate a kvm guest that uses pvclock between two hosts, we may
>> suffer a large skew. This is because there can be significant differences
>> between the monotonic clock of the ho
mp_state, unlike other cpu state, can be changed not only from vcpu
context it belongs to, but by other vcpus too. That makes its loading
from kernel/saving back not safe if mp_state value is changed inside
kernel between load and save. For example vcpu 1 loads mp_sate into
user-space and the state
On Mon, Oct 12, 2009 at 02:50:27PM -0300, Marcelo Tosatti wrote:
> On Tue, Oct 06, 2009 at 01:24:50PM -0400, Glauber Costa wrote:
> > For a while now, we are issuing a rdmsr instruction to find out which msrs
> > in our
> > save list are really supported by the underlying machine. However, it fail
On 10/13/2009 03:28 PM, Glauber Costa wrote:
Do we want an absolute or relative adjustment?
What exactly do you mean?
Absolute adjustment: clock = t
Relative adjustment: clock += t
--
I have a truly marvellous patch that fixes the bug which this
signature is too narrow to contain
On Tue, Oct 13, 2009 at 03:31:08PM +0300, Avi Kivity wrote:
> On 10/13/2009 03:28 PM, Glauber Costa wrote:
>>
>>> Do we want an absolute or relative adjustment?
>>>
>> What exactly do you mean?
>>
>
> Absolute adjustment: clock = t
> Relative adjustment: clock += t
The delta is absolute,
Applied, thanks!
On Tue, Oct 13, 2009 at 6:13 AM, Yolkfull Chow wrote:
> If command executed timeout, the return value of status could be None,
> which is missed in judge statement:
>
> if s:
> ...
>
> Thanks Jason Wang for pointing this out.
>
> Signed-off-by: Yolkfull Chow
> ---
> client/te
When we migrate a kvm guest that uses pvclock between two hosts, we may
suffer a large skew. This is because there can be significant differences
between the monotonic clock of the hosts involved. When a new host with
a much larger monotonic time starts running the guest, the view of time
will be s
On Tue, 2009-10-13 at 08:50 +0200, Avi Kivity wrote:
> On 10/12/2009 08:42 PM, Andrew Theurer wrote:
> > On Sun, 2009-10-11 at 07:19 +0200, Avi Kivity wrote:
> >
> >> On 10/09/2009 10:04 PM, Andrew Theurer wrote:
> >>
> >>> This is on latest master branch on kvm.git and qemu-kvm.git, runn
On Tue, Oct 13, 2009 at 08:50:07AM +0200, Avi Kivity wrote:
> On 10/12/2009 08:42 PM, Andrew Theurer wrote:
>> On Sun, 2009-10-11 at 07:19 +0200, Avi Kivity wrote:
>>
>>> On 10/09/2009 10:04 PM, Andrew Theurer wrote:
>>>
This is on latest master branch on kvm.git and qemu-kvm.git, ru
Use new rom loading infrastructure.
Devices can simply register option roms now.
Signed-off-by: Gerd Hoffmann
---
hw/device-assignment.c | 144 ---
hw/device-assignment.h |1 -
hw/pc.c|3 -
3 files changed, 61 insertions(+), 87
Signed-off-by: Gerd Hoffmann
---
configure |4 ++--
1 files changed, 2 insertions(+), 2 deletions(-)
diff --git a/configure b/configure
index 2341772..b0d5bd9 100755
--- a/configure
+++ b/configure
@@ -1414,7 +1414,7 @@ if test "$kvm_cap_pit" != "no" ; then
#endif
int main(void) { return
Hi Michael.
On Saturday, 10 October 2009 20:10:16 +0400,
Michael Tokarev wrote:
> >>>But according to it seems, I could verify that the disks that are
> >>>passed with -hdX in KVM-88 are mapped in 2.6.31.2 guests like
> >>>SATA/SCSI devices. With Linux stock 2.6.26 these are mapped like
> >>>IDE
Add support for getting/setting MSRs, CPUID tree, and the LACPIC via the
new VCPU state interface. Also in this case we convert the existing
IOCTLs to use the new infrastructure internally.
The MSR interface has to be extended to pass back the number of
processed MSRs via the header structure inst
This plugs an NMI-related hole in the VCPU synchronization between
kernel and user space. So far, neither pending NMIs nor the inhibit NMI
mask was properly read/set which was able to cause problems on
vmsave/restore, live migration and system reset. Fix it by making use
of the new VCPU substate in
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
As you may have noticed, we are constantly adding IOCTLs as yet another
state field has to be exchanged between kernel and user space. I was
about to add one for the missing hidden NMI states (pending and masked),
but Avi suggested to take this chance, inventing a more easily
extensible interface.
Add a new IOCTL pair to retrieve or set the VCPU state in one chunk.
More precisely, the IOCTL is able to process a list of substates to be
read or written. This list is easily extensible without breaking the
existing ABI, thus we will no longer have to add new IOCTLs when we
discover a missing VCP
This is a demonstration patch for the new KVM IOCTLs proposed in [1]. It
converts upstream kvm to use this in favor of the individual IOCTLs to
get/set VCPU registers and related states. It works, fixes the missing
NMI state handling but, of course, only makes sense if the interface is
accepted by
On Thu, Oct 08, 2009 at 03:53:59PM -0300, Glauber Costa wrote:
> abort() needs it. Build with kvm disabled breaks without it.
>
> Signed-off-by: Glauber Costa
Applied, thanks.
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On Fri, Oct 09, 2009 at 08:11:28AM +0100, Mark McLoughlin wrote:
> On Thu, 2009-10-08 at 15:31 -0700, Sridhar Samudrala wrote:
> > On Thu, 2009-10-08 at 11:07 +0100, Mark McLoughlin wrote:
> > > On Wed, 2009-10-07 at 14:50 -0700, Sridhar Samudrala wrote:
> > > > linux 2.6.32 includes UDP fragmentat
Hi Jim.
On Wednesday, 07 October 2009 14:21:15 -0400,
Jim Paris wrote:
> > > > I noticed no-one answered this, and I just ran into the same
> > > > thing myself. As Avi pointed out earlier, it is a guest bug, and
> > > > upgrading the guest to 2.6.27 should fix it:
> > > > http://www.mail-arch
On Fri, Oct 09, 2009 at 03:03:08PM -0300, Glauber Costa wrote:
> This series aims at cleanin up vcpu_context structure. I am not removing yet
> the fd field, because it is used in the ioctls, and I want to do it
> separadedly.
>
> But after this series, this structure exists only as a way to hold
javier,
This is fixed in the -next branch of kvm.git. Thanks.
On Sun, Oct 11, 2009 at 02:28:23AM -0400, javier martinez canillas wrote:
> I got this compile warning with today linux-next:
>
> arch/x86/kvm/mmu.c: In function ‘kvm_set_pte_rmapp’:
> arch/x86/kvm/mmu.c:770: warning: cast to pointer
On Mon, Oct 12, 2009 at 08:51:40AM +0200, Jan Kiszka wrote:
> This (broken) check dates back to the days when this code was shared
> across architectures. x86 has IOMEM, so drop it.
>
> Signed-off-by: Jan Kiszka
Applied, thanks.
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On Tue, Oct 13, 2009 at 02:17:19PM +0200, Gleb Natapov wrote:
> Otherwise some cpus may start executing code before others
> are fully initialized.
>
> Signed-off-by: Gleb Natapov
> ---
> qemu-kvm.c | 26 --
> 1 files changed, 12 insertions(+), 14 deletions(-)
>
> diff
On Tue, Oct 13, 2009 at 03:19:08PM -0300, Marcelo Tosatti wrote:
> > @@ -2003,15 +1991,25 @@ static void *ap_main_loop(void *_env)
> > on_vcpu(env, kvm_arch_do_ioperm, data);
> > #endif
> >
> > -/* signal VCPU creation */
> > +setup_kernel_sigmask(env);
> > +
> > pthread_mu
On Tue, Oct 13, 2009 at 03:19:08PM -0300, Marcelo Tosatti wrote:
> On Tue, Oct 13, 2009 at 02:17:19PM +0200, Gleb Natapov wrote:
> > Otherwise some cpus may start executing code before others
> > are fully initialized.
> >
> > Signed-off-by: Gleb Natapov
> > ---
> > qemu-kvm.c | 26 +++
On Tue, Oct 13, 2009 at 03:23:48PM -0300, Marcelo Tosatti wrote:
> On Tue, Oct 13, 2009 at 03:19:08PM -0300, Marcelo Tosatti wrote:
> > > @@ -2003,15 +1991,25 @@ static void *ap_main_loop(void *_env)
> > > on_vcpu(env, kvm_arch_do_ioperm, data);
> > > #endif
> > >
> > > -/* signal V
On Tue, Oct 13, 2009 at 02:17:20PM +0200, Gleb Natapov wrote:
> mp_state, unlike other cpu state, can be changed not only from vcpu
> context it belongs to, but by other vcpus too. That makes its loading
> from kernel/saving back not safe if mp_state value is changed inside
> kernel between load an
On Tue, Oct 13, 2009 at 03:36:13PM -0300, Marcelo Tosatti wrote:
> On Tue, Oct 13, 2009 at 02:17:20PM +0200, Gleb Natapov wrote:
> > mp_state, unlike other cpu state, can be changed not only from vcpu
> > context it belongs to, but by other vcpus too. That makes its loading
> > from kernel/saving b
Thank you. Sorry for the noise.
Best regards
-
Javier Martínez Canillas
+595 981 88 66 58
On Tue, Oct 13, 2009 at 1:10 PM, Marcelo Tosatti wrote:
> javier,
>
> This is fixed in the -next branch of kvm.git. Thanks.
>
> On Sun, Oct 11, 2009 at 02:28:23AM
This simplifies working with new features without having to update the
locally mirrored headers. It also reduces the diff to upstream.
Signed-off-by: Jan Kiszka
---
v2: Rebase over git head
configure | 46 --
1 files changed, 28 insertions(+), 18 de
Hi Yolkfull and Chen:
Thanks for your test! I have some comments and doubts to clear, most
of them are about content of the messages delivered for the user and
some other details.
On Sun, Sep 27, 2009 at 6:11 AM, Yolkfull Chow wrote:
> For this case, Ken Cao wrote the linux part previously and I
* Lucas Meneghel Rodrigues [2009-10-09 15:41]:
> In order to make it possible to prepare the environment
> for the guests installation, we have to:
>
>
> +class UnattendedInstall(object):
> +"""
> +Creates a floppy disk image that will contain a config file for
> unattended
> +OS i
When we migrate a kvm guest that uses pvclock between two hosts, we may
suffer a large skew. This is because there can be significant differences
between the monotonic clock of the hosts involved. When a new host with
a much larger monotonic time starts running the guest, the view of time
will be s
On Tue, Oct 13, 2009 at 04:55:05PM -0400, Glauber Costa wrote:
> + case KVM_SET_CLOCK: {
> + struct timespec now;
> + struct kvm_clock_data user_ns;
> + u64 now_ns;
> + long delta;
Should'nt that read s64? I guess such a large
On Tue, Oct 13, 2009 at 5:52 PM, Ryan Harper wrote:
> * Lucas Meneghel Rodrigues [2009-10-09 15:41]:
>> In order to make it possible to prepare the environment
>> for the guests installation, we have to:
>>
>>
>
>> +class UnattendedInstall(object):
>> + """
>> + Creates a floppy disk image
On Tue, Oct 13, 2009 at 05:20:34PM +0200, Gerd Hoffmann wrote:
> Use new rom loading infrastructure.
> Devices can simply register option roms now.
>
> Signed-off-by: Gerd Hoffmann
Applied, thanks.
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On Tue, Oct 13, 2009 at 09:01:09PM +0200, Jan Kiszka wrote:
> This simplifies working with new features without having to update the
> locally mirrored headers. It also reduces the diff to upstream.
>
> Signed-off-by: Jan Kiszka
Applied, thanks.
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On Sun, Oct 11, 2009 at 11:16:42AM +0200, Avi Kivity wrote:
> > if scsi is used, you incur the cost of virtualization,
> > if virtio is used, your guests fsyncs incur less cost.
> >
> >So back to the question to the kvm team. It appears that with the
> >stock KVM setup customers who need high
Matthew Tippett wrote:
Thanks Duncan for reproducing the behavior outside myself and Phoronix.
I dug deeper into the actual syscalls being made by sqlite. The
salient part of the behaviour is small sequential writes followed by a
fdatasync (effectively a metadata-free fsync).
As Dustin indi
I mostly agree with Lucas's comments and would like to add some of my own.
- "Lucas Meneghel Rodrigues" wrote:
> Hi Yolkfull and Chen:
>
> Thanks for your test! I have some comments and doubts to clear, most
> of them are about content of the messages delivered for the user and
> some other
No, it's an absurd assessment.
You have additional layers of caching happening because you're running a
guest from a filesystem on the host.
Comments below.
A benchmark running under a guest that happens do be faster than the
host does not indicate anything. It could be that the benchmark
On Tue, Oct 13, 2009 at 05:29:40PM -0300, Lucas Meneghel Rodrigues wrote:
> Hi Yolkfull and Chen:
>
> Thanks for your test! I have some comments and doubts to clear, most
> of them are about content of the messages delivered for the user and
> some other details.
>
> On Sun, Sep 27, 2009 at 6:11
On Tue, Oct 13, 2009 at 9:09 PM, Matthew Tippett wrote:
> I believe that I have removed the benchmark from discussion, we are now
> looking at semantics of small writes followed by
...
> And quoting from Dustin
>
> ===
> I have tried this, exactly as you have described. The tests took:
>
> * 116
As we discussed a while back, support for Xen PV-on-HVM guests can be
implemented almost entirely in userspace, except for handling one
annoying MSR that maps a Xen hypercall blob into guest address space.
A generic mechanism to delegate MSR writes to userspace seems overkill
and risks encouraging
-BEGIN PGP SIGNED MESSAGE-
Hash: SHA1
Hi all,
In short, I have a need for trapping RDTSC with a VM Exit and this
works, but I'm having trouble handling it in userspace. I have added
the hooks I need (I only care about VMX right now), but a piece of the
puzzle is missing and I don't
Hi,
I'm not able to get MementOS booting while using kvm modules. QEmu
hangs on Floppy boot. Here is the procedure:
cd /tmp
wget -c 'http://www.menuetos.be/download.php?CurrentMenuetOS' -O menuetos.zip
unzip -u menuetos.zip
qemu-kvm -m 512 -fda M64-*.IMG -boot a
I have a intel i7 920, I use kvm-
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