Hello,
we have got some issues with I/O in our kvm environment. We are using
kernel version 2.6.32 (Ubuntu 10.04 LTS) to virtualise our hosts and we
are using ksm, too. Recently we noticed that sometimes the guest systems
(mainly OpenSuse guest systems) suddenly have a read only filesystem.
After
We've don't use Ubuntu (we use Gentoo/KVM 0.12.5) but we've had a
similar problem with kernels 2.6.32-r11 (this is Gentoo specific and
means update -r11 and not release candidate 11) and with the first three
releases of 2.6.34 especially when NFS was involved. We're currently
running
On 12/09/2010 03:17 AM, Sheng Yang wrote:
if (!is_long_mode(vcpu) is_pae(vcpu)) {
load_pdptrs(vcpu, vcpu-arch.walk_mmu, vcpu-arch.cr3);
mmu_reset_needed = 1;
We really should use kvm_set_crX() here.
Yeah, I suppose we use ops-set_cr4() here
On 12/09/2010 12:38 AM, Rik van Riel wrote:
- /* Sleep for 100 us, and hope lock-holder got scheduled */
- expires = ktime_add_ns(ktime_get(), 10UL);
- schedule_hrtimeout(expires, HRTIMER_MODE_ABS);
+ if (first_round last_boosted_vcpu == kvm-last_boosted_vcpu) {
+ /* We have not found
On 12/08/2010 07:03 PM, Nadav Har'El wrote:
When the guest can use VMX instructions (when the nested module option is
on), it should also be able to read and write VMX MSRs, e.g., to query about
VMX capabilities. This patch adds this support.
+
+static int vmx_set_vmx_msr(struct kvm_vcpu *vcpu,
On 12/08/2010 07:03 PM, Nadav Har'El wrote:
This patch includes a utility function for decoding pointer operands of VMX
instructions issued by L1 (a guest hypervisor)
Signed-off-by: Nadav Har'Eln...@il.ibm.com
---
arch/x86/kvm/vmx.c | 59 +++
The saving and restoring of error_code seems lost and convert the
error_code to uint32_t.
Signed-off-by: Jason Wang jasow...@redhat.com
---
target-i386/cpu.h |4 ++--
target-i386/machine.c |2 ++
2 files changed, 4 insertions(+), 2 deletions(-)
diff --git a/target-i386/cpu.h
Jason Wang jasow...@redhat.com wrote:
The saving and restoring of error_code seems lost and convert the
error_code to uint32_t.
Signed-off-by: Jason Wang jasow...@redhat.com
---
target-i386/cpu.h |4 ++--
target-i386/machine.c |2 ++
2 files changed, 4 insertions(+), 2
On Wed, Dec 08, 2010 at 07:00:59PM +0200, Nadav Har'El wrote:
If the nested module option is enabled, add the VMX CPU feature to the
list of CPU features KVM advertises with the KVM_GET_SUPPORTED_CPUID ioctl.
Qemu uses this ioctl, and intersects KVM's list with its own list of desired
cpu
On 12/08/2010 07:04 PM, Nadav Har'El wrote:
In this patch we add a list of L0 (hardware) VMCSs, which we'll use to hold a
hardware VMCS for each active vmcs12 (i.e., for each L2 guest).
We call each of these L0 VMCSs a vmcs02, as it is the VMCS that L0 uses
to run its nested guest L2.
On 12/08/2010 07:04 PM, Nadav Har'El wrote:
In this patch we add to vmcs12 (the VMCS that L1 keeps for L2) all the
standard VMCS fields. These fields are encapsulated in a struct vmcs_fields.
Later patches will enable L1 to read and write these fields using VMREAD/
VMWRITE, and they will be
On 12/08/2010 06:59 PM, Nadav Har'El wrote:
Hi,
This is the seventh iteration of the nested VMX patch set. It fixes a bunch
of bugs in the previous iteration, and in particular it now works correctly
with EPT in the L0 hypervisor, so ept=0 no longer needs to be specified.
This new set of
Hello,
I agree with Robert, the QEMU command-line used to launch these guests
would be useful (on host: ps aux | grep kvm). Have you explicitly set
a -drive cache= mode (like none, writeback, or writethrough)?
here is the qemu command line we are using (or which libvirt generates):
On 12/08/2010 07:09 PM, Nadav Har'El wrote:
This patch implements nested_vmx_vmexit(), called when the nested L2 guest
exits and we want to run its L1 parent and let it handle this exit.
Note that this will not necessarily be called on every L2 exit. L0 may decide
to handle a particular exit on
On 12/08/2010 07:12 PM, Nadav Har'El wrote:
KVM's Lazy FPU loading means that sometimes L0 needs to set CR0.TS, even
if a guest didn't set it. Moreover, L0 must also trap CR0.TS changes and
NM exceptions, even if we have a guest hypervisor (L1) who didn't want these
traps. And of course,
On 12/08/2010 07:12 PM, Nadav Har'El wrote:
When L2 tries to modify CR0 or CR4 (with mov or clts), and modifies a bit
which L1 asked to shadow (via CR[04]_GUEST_HOST_MASK), we already do the right
thing: we let L1 handle the trap (see nested_vmx_exit_handled_cr() in a
previous patch).
When L2
On Fri, Nov 26, 2010 at 10:38:33AM +0800, lidong chen wrote:
Does this message appear on boot, or after some stress?
on boot, and only appear when boot from network.
Which qemu-kvm version?
[r...@kvm-4slot ~]# /usr/libexec/qemu-kvm --version
QEMU PC emulator version 0.12.1
On Tue, Nov 23, 2010 at 10:13:43AM +0800, lidong chen wrote:
I test the performance between per-vhost kthread disable and enable.
Test method:
Send the same traffic load between per-vhost kthread disable and
enable, and compare the cpu rate of host os.
I run five vm on kvm, each of them
On Thu, Dec 09, 2010 at 03:31:08PM +0200, Michael S. Tsirkin wrote:
On Tue, Nov 23, 2010 at 10:13:43AM +0800, lidong chen wrote:
I test the performance between per-vhost kthread disable and enable.
Test method:
Send the same traffic load between per-vhost kthread disable and
enable,
On Thu, 2010-12-09 at 14:43 +0800, Wei Yongjun wrote:
Fix the following compile error in next tree:
CCx86_64-softmmu/device-assignment.o
hw/device-assignment.c: In function ‘assigned_device_pci_cap_init’:
hw/device-assignment.c:1463: error: ‘PCI_PM_CTRL_NO_SOFT_RST’ undeclared
(first
On Thu, Dec 9, 2010 at 12:52 PM, Sebastian Nickel - Hetzner Online AG
sebastian.nic...@hetzner.de wrote:
here is the qemu command line we are using (or which libvirt generates):
/usr/bin/kvm -S -M pc-0.12 -enable-kvm -m 512 -smp
1,sockets=1,cores=1,threads=1 -name vm-933 -uuid
On 12/09/2010 05:13 PM, Markus Armbruster wrote:
Avi Kivitya...@redhat.com writes:
On 12/06/2010 06:43 PM, Alex Williamson wrote:
On Mon, 2010-12-06 at 18:34 +0200, Avi Kivity wrote:
On 12/06/2010 06:21 PM, Alex Williamson wrote:
v2:
- Reimplement 2/5 to remove more
Avi Kivity a...@redhat.com writes:
On 12/06/2010 06:43 PM, Alex Williamson wrote:
On Mon, 2010-12-06 at 18:34 +0200, Avi Kivity wrote:
On 12/06/2010 06:21 PM, Alex Williamson wrote:
v2:
- Reimplement 2/5 to remove more cruft
v1:
Now that we've got PCI
Signed-off-by: Alex Williamson alex.william...@redhat.com
---
hw/pci.c |2 +-
1 files changed, 1 insertions(+), 1 deletions(-)
diff --git a/hw/pci.c b/hw/pci.c
index 288d6fd..0962416 100644
--- a/hw/pci.c
+++ b/hw/pci.c
@@ -1856,7 +1856,7 @@ int pci_add_capability(PCIDevice *pdev, uint8_t
On Thu, 2010-12-09 at 17:32 +0200, Avi Kivity wrote:
On 12/09/2010 05:13 PM, Markus Armbruster wrote:
Avi Kivitya...@redhat.com writes:
On 12/06/2010 06:43 PM, Alex Williamson wrote:
On Mon, 2010-12-06 at 18:34 +0200, Avi Kivity wrote:
On 12/06/2010 06:21 PM, Alex Williamson
On 12/09/2010 05:28 AM, Avi Kivity wrote:
On 12/09/2010 12:38 AM, Rik van Riel wrote:
- /* Sleep for 100 us, and hope lock-holder got scheduled */
- expires = ktime_add_ns(ktime_get(), 10UL);
- schedule_hrtimeout(expires, HRTIMER_MODE_ABS);
+ if (first_round last_boosted_vcpu ==
Alex Williamson alex.william...@redhat.com writes:
Signed-off-by: Alex Williamson alex.william...@redhat.com
---
hw/pci.c |2 +-
1 files changed, 1 insertions(+), 1 deletions(-)
diff --git a/hw/pci.c b/hw/pci.c
index 288d6fd..0962416 100644
--- a/hw/pci.c
+++ b/hw/pci.c
@@ -1856,7
Hello,
I've a windows guest that I like to make snapshot of it and revert to
that snapshot many times in a day.
Does qcow2 have any solution for making this happen really fast with
no files to be copied?
Regards
--
To unsubscribe from this list: send the line unsubscribe kvm in
the body of a
Marcelo Tosatti mtosa...@redhat.com wrote:
--- a/arch/x86/kvm/i8254.c
+++ b/arch/x86/kvm/i8254.c
@@ -744,9 +744,11 @@ void kvm_free_pit(struct kvm *kvm)
struct hrtimer *timer;
if (kvm-arch.vpit) {
+ mutex_lock(kvm-slots_lock);
On Thu, 09 Dec 2010 14:59:00 +0800
Lai Jiangshan la...@cn.fujitsu.com wrote:
Convert do_inject_nmi() to QObject, we need to use it(via libvirt).
Patches 0/6 and 1/6 are missing.
Also, I see that you're converting two unrelated commands in the same
series. Please, split into two series.
It
On Thu, 09 Dec 2010 14:59:40 +0800
Lai Jiangshan la...@cn.fujitsu.com wrote:
Convert do_sendkey() to QObject,QError, we need to use it.(via libvirt)
It is a trivial conversion, carefully converted the error reports.
Trivial conversion doesn't seem to lead to a good interface for qmp,
Signed-off-by: Thomas Meyer tho...@m3y3r.de
---
arch/x86/kvm/x86.c |5 +++--
1 files changed, 3 insertions(+), 2 deletions(-)
diff --git a/arch/x86/kvm/x86.c b/arch/x86/kvm/x86.c
index cdac9e5..2609c3d 100644
--- a/arch/x86/kvm/x86.c
+++ b/arch/x86/kvm/x86.c
@@ -4561,7 +4561,7 @@ static
On 12/09/2010 03:25 PM, Jan Kiszka wrote:
Am 09.12.2010 07:58, Lai Jiangshan wrote:
Make use of the new KVM_NMI IOCTL to send NMIs into the KVM guest if the
user space APIC emulation or some other source raised them.
In that light, the subject is not absolutely correct.
[...]
Juan Quintela writes:
Jason Wang jasow...@redhat.com wrote:
The saving and restoring of error_code seems lost and convert the
error_code to uint32_t.
Signed-off-by: Jason Wang jasow...@redhat.com
---
target-i386/cpu.h |4 ++--
target-i386/machine.c |2 ++
2
Jason Wang jasow...@redhat.com wrote:
Juan Quintela writes:
Jason Wang jasow...@redhat.com wrote:
The saving and restoring of error_code seems lost and convert the
error_code to uint32_t.
Signed-off-by: Jason Wang jasow...@redhat.com
---
target-i386/cpu.h |4
On 12/03/2010 09:06 AM, Srivatsa Vaddagiri wrote:
On Fri, Dec 03, 2010 at 03:03:30PM +0100, Peter Zijlstra wrote:
No, because they do receive service (they spend some time spinning
before being interrupted), so the respective vruntimes will increase, at
some point they'll pass B0 and it'll get
* Rik van Riel r...@redhat.com [2010-12-02 14:41:29]:
When running SMP virtual machines, it is possible for one VCPU to be
spinning on a spinlock, while the VCPU that holds the spinlock is not
currently running, because the host scheduler preempted it to run
something else.
Both Intel and
Signed-off-by: Lai Jiangshan la...@cn.fujitsu.com
---
diff --git a/qerror.c b/qerror.c
index ac2cdaf..f59fb58 100644
--- a/qerror.c
+++ b/qerror.c
@@ -117,6 +117,10 @@ static const QErrorStringTable qerror_table[] = {
.desc = Invalid block format '%(name)',
},
{
+
Convert do_inject_nmi() to QObject, QError, we need to use it(via libvirt).
changed from v1
Add document.
Add error handling when the cpu index is invalid.
Signed-off-by: Lai Jiangshan la...@cn.fujitsu.com
---
diff --git a/hmp-commands.hx b/hmp-commands.hx
index 23024ba..f86d9fe 100644
---
Make use of the new KVM_NMI IOCTL to send NMIs into the KVM guest if the
user space raised them. (example: qemu monitor's nmi command)
Signed-off-by: Lai Jiangshan la...@cn.fujitsu.com
---
diff --git a/configure b/configure
index 2917874..f6f9362 100755
--- a/configure
+++ b/configure
@@ -1646,6
Thanks again.
I understand that the table can change over time, but it doesn't explain why
the top-most table gets zapped and seemingly recreated with a different page
frame (and thus the different EPTP values) so frequently. Why isn't the table
being updated instead of being destroyed and
simple cleanup and use existed helper: kvm_check_extension().
Signed-off-by: Lai Jiangshan la...@cn.fujitsu.com
---
diff --git a/kvm-all.c b/kvm-all.c
index cae24bb..35fc73c 100644
--- a/kvm-all.c
+++ b/kvm-all.c
@@ -678,7 +678,7 @@ int kvm_init(int smp_cpus)
s-broken_set_mem_region = 1;
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