On Tue, Jul 17, 2012 at 07:14:52PM +0300, Michael S. Tsirkin wrote:
_Seems_ racy, or _is_ racy? Please identify the race.
Look at this:
static inline int kvm_irq_line_state(unsigned long *irq_state,
int irq_source_id, int level)
{
/* Logical
Hi All,
This is KVM upstream test result against kvm.git next branch and qemu-kvm.git
master branch.
kvm.git next branch: 58d8b1728ea3da391ef01c43a384ea06ce4b7c8a based on
kernel 3.5.0-rc1
qemu-kvm.git master branch: 28c3a9b197900c88f27b14f8862a7a15c00dc7f0
We found no new
On 07/17/2012 07:11 PM, Stefan Hajnoczi wrote:
On Tue, Jul 17, 2012 at 10:21 AM, Asias He as...@redhat.com wrote:
On 07/17/2012 04:52 PM, Paolo Bonzini wrote:
Il 17/07/2012 10:29, Asias He ha scritto:
So, vhost-blk at least saves ~6 syscalls for us in each request.
Are they really 6? If
On Wed, Jul 18, 2012 at 5:01 AM, Wangpan hzwang...@corp.netease.com wrote:
But how can I get the serial info in the guest os?
General documentation on persistent block device naming (just grabbed
the first useful link of Google):
On Wed, Jul 18, 2012 at 9:12 AM, Asias He as...@redhat.com wrote:
On 07/17/2012 07:11 PM, Stefan Hajnoczi wrote:
On Tue, Jul 17, 2012 at 10:21 AM, Asias He as...@redhat.com wrote:
On 07/17/2012 04:52 PM, Paolo Bonzini wrote:
Il 17/07/2012 10:29, Asias He ha scritto:
So, vhost-blk at
Hi, Avi
Any comments on this patch? :)
-Original Message-
From: kvm-ow...@vger.kernel.org [mailto:kvm-ow...@vger.kernel.org] On
Behalf Of Mao, Junjie
Sent: Friday, July 13, 2012 12:58 PM
To: 'kvm@vger.kernel.org'
Subject: [PATCH] qemu kvm: Recognize PCID feature
This patch makes
On 07/17/2012 09:02 PM, Paolo Bonzini wrote:
Il 17/07/2012 14:48, Michael S. Tsirkin ha scritto:
On Tue, Jul 17, 2012 at 01:03:39PM +0100, Stefan Hajnoczi wrote:
On Tue, Jul 17, 2012 at 12:54 PM, Michael S. Tsirkin m...@redhat.com wrote:
Knowing the answer to that is important before anyone
Signed-off-by: Avi Kivity a...@redhat.com
---
arch/x86/kernel/cpu/hypervisor.c | 2 ++
1 file changed, 2 insertions(+)
diff --git a/arch/x86/kernel/cpu/hypervisor.c b/arch/x86/kernel/cpu/hypervisor.c
index 6d6dd7a..a8f8fa9 100644
--- a/arch/x86/kernel/cpu/hypervisor.c
+++
On 2012-07-18 03:54, Wen Congyang wrote:
At 07/06/2012 07:05 PM, Jan Kiszka Wrote:
On 2012-07-06 11:41, Wen Congyang wrote:
If the target is x86/x86_64, the guest's kernel will write 0x01 to the
port KVM_PV_PORT when it is panciked. This patch introduces a new qom
device kvm_pv_ioport to
On 2012-07-18 07:45, Martin Wolf wrote:
Hello,
i was able to passthrough an AMD 7870 videocard to my win7 guest machine.
Would you add it to http://www.linux-kvm.org/page/VGA_device_assignment?
my host is ubuntu 12.04 with stock kernel.
my system contains:
dq67sw q67 mainboard
i5-2400s
On 2012-07-18 11:19, Jan Kiszka wrote:
On 2012-07-18 03:54, Wen Congyang wrote:
At 07/06/2012 07:05 PM, Jan Kiszka Wrote:
On 2012-07-06 11:41, Wen Congyang wrote:
If the target is x86/x86_64, the guest's kernel will write 0x01 to the
port KVM_PV_PORT when it is panciked. This patch introduces
On 2012-07-18 10:44, Mao, Junjie wrote:
Hi, Avi
Any comments on this patch? :)
Always include qemu-devel when your are changing QEMU, qemu-kvm is just
staging for the latter. This patch can actually go into upstream
directly, maybe even via qemu-trivial as it just makes that flag selectable.
This patch adds the watchdog emulation in KVM. The watchdog
emulation is enabled by KVM_ENABLE_CAP(KVM_CAP_PPC_WDT) ioctl.
The kernel timer are used for watchdog emulation and emulates
h/w watchdog state machine. On watchdog timer expiry, it exit to QEMU
if TCR.WRC is non ZERO. QEMU can
This patch adds the watchdog emulation in KVM. The watchdog
emulation is enabled by KVM_ENABLE_CAP(KVM_CAP_PPC_WDT) ioctl.
The kernel timer are used for watchdog emulation and emulates
h/w watchdog state machine. On watchdog timer expiry, it exit to QEMU
if TCR.WRC is non ZERO. QEMU can
On 07/17/2012 12:21 PM, Asias He wrote:
On 07/17/2012 04:52 PM, Paolo Bonzini wrote:
Il 17/07/2012 10:29, Asias He ha scritto:
So, vhost-blk at least saves ~6 syscalls for us in each request.
Are they really 6? If I/O is coalesced by a factor of 3, for example
(i.e. each exit processes 3
On Wed, Jul 18, 2012 at 09:27:42AM +0300, Gleb Natapov wrote:
On Tue, Jul 17, 2012 at 07:14:52PM +0300, Michael S. Tsirkin wrote:
_Seems_ racy, or _is_ racy? Please identify the race.
Look at this:
static inline int kvm_irq_line_state(unsigned long *irq_state,
On Wed, Jul 18, 2012 at 01:20:29PM +0300, Michael S. Tsirkin wrote:
On Wed, Jul 18, 2012 at 09:27:42AM +0300, Gleb Natapov wrote:
On Tue, Jul 17, 2012 at 07:14:52PM +0300, Michael S. Tsirkin wrote:
_Seems_ racy, or _is_ racy? Please identify the race.
Look at this:
static
On Tue, Jul 17, 2012 at 08:44:04PM -0600, Alex Williamson wrote:
On Wed, 2012-07-18 at 01:24 +0300, Michael S. Tsirkin wrote:
On Tue, Jul 17, 2012 at 04:09:25PM -0600, Alex Williamson wrote:
On Wed, 2012-07-18 at 00:23 +0300, Michael S. Tsirkin wrote:
On Tue, Jul 17, 2012 at 02:03:05PM
On Wed, Jul 18, 2012 at 01:27:39PM +0300, Gleb Natapov wrote:
On Wed, Jul 18, 2012 at 01:20:29PM +0300, Michael S. Tsirkin wrote:
On Wed, Jul 18, 2012 at 09:27:42AM +0300, Gleb Natapov wrote:
On Tue, Jul 17, 2012 at 07:14:52PM +0300, Michael S. Tsirkin wrote:
_Seems_ racy, or _is_ racy?
On Wed, Jul 18, 2012 at 01:33:35PM +0300, Michael S. Tsirkin wrote:
On Wed, Jul 18, 2012 at 01:27:39PM +0300, Gleb Natapov wrote:
On Wed, Jul 18, 2012 at 01:20:29PM +0300, Michael S. Tsirkin wrote:
On Wed, Jul 18, 2012 at 09:27:42AM +0300, Gleb Natapov wrote:
On Tue, Jul 17, 2012 at
Am Montag, den 16.07.2012, 23:58 +0200 schrieb Hans J. Koch:
Try to hack up a patch to add generic BAR mapping to uio_pci_generic.c
and post it for review.
Here we go ...
Signed-off-by: Dominic Eschweiler eschwei...@fias.uni-frankfurt.de
diff --git a/drivers/uio/uio_pci_generic.c
On Mon, Jul 16, 2012 at 02:33:47PM -0600, Alex Williamson wrote:
In order to inject a level interrupt from an external source using an
irqfd, we need to allocate a new irq_source_id. This allows us to
assert and (later) de-assert an interrupt line independently from
users of KVM_IRQ_LINE and
On Mon, Jul 16, 2012 at 02:33:38PM -0600, Alex Williamson wrote:
v5:
- irqfds now have a one-to-one mapping with eoifds to prevent users
from consuming all of kernel memory by repeatedly creating eoifds
from a single irqfd.
- implement a kvm_clear_irq() which does a test_and_clear_bit
On Wed, Jul 18, 2012 at 01:41:14PM +0300, Michael S. Tsirkin wrote:
On Mon, Jul 16, 2012 at 02:33:47PM -0600, Alex Williamson wrote:
In order to inject a level interrupt from an external source using an
irqfd, we need to allocate a new irq_source_id. This allows us to
assert and (later)
On Wed, Jul 18, 2012 at 01:44:29PM +0300, Gleb Natapov wrote:
On Wed, Jul 18, 2012 at 01:41:14PM +0300, Michael S. Tsirkin wrote:
On Mon, Jul 16, 2012 at 02:33:47PM -0600, Alex Williamson wrote:
In order to inject a level interrupt from an external source using an
irqfd, we need to
On Wed, Jul 18, 2012 at 01:48:44PM +0300, Michael S. Tsirkin wrote:
On Wed, Jul 18, 2012 at 01:44:29PM +0300, Gleb Natapov wrote:
On Wed, Jul 18, 2012 at 01:41:14PM +0300, Michael S. Tsirkin wrote:
On Mon, Jul 16, 2012 at 02:33:47PM -0600, Alex Williamson wrote:
In order to inject a
On Wed, Jul 18, 2012 at 01:36:08PM +0300, Gleb Natapov wrote:
On Wed, Jul 18, 2012 at 01:33:35PM +0300, Michael S. Tsirkin wrote:
On Wed, Jul 18, 2012 at 01:27:39PM +0300, Gleb Natapov wrote:
On Wed, Jul 18, 2012 at 01:20:29PM +0300, Michael S. Tsirkin wrote:
On Wed, Jul 18, 2012 at
On Wed, Jul 18, 2012 at 01:49:06PM +0300, Gleb Natapov wrote:
On Wed, Jul 18, 2012 at 01:48:44PM +0300, Michael S. Tsirkin wrote:
On Wed, Jul 18, 2012 at 01:44:29PM +0300, Gleb Natapov wrote:
On Wed, Jul 18, 2012 at 01:41:14PM +0300, Michael S. Tsirkin wrote:
On Mon, Jul 16, 2012 at
On Wed, Jul 18, 2012 at 01:51:05PM +0300, Michael S. Tsirkin wrote:
On Wed, Jul 18, 2012 at 01:36:08PM +0300, Gleb Natapov wrote:
On Wed, Jul 18, 2012 at 01:33:35PM +0300, Michael S. Tsirkin wrote:
On Wed, Jul 18, 2012 at 01:27:39PM +0300, Gleb Natapov wrote:
On Wed, Jul 18, 2012 at
On Wed, Jul 18, 2012 at 01:53:11PM +0300, Michael S. Tsirkin wrote:
On Wed, Jul 18, 2012 at 01:49:06PM +0300, Gleb Natapov wrote:
On Wed, Jul 18, 2012 at 01:48:44PM +0300, Michael S. Tsirkin wrote:
On Wed, Jul 18, 2012 at 01:44:29PM +0300, Gleb Natapov wrote:
On Wed, Jul 18, 2012 at
I have a really annoying bug, I can reproduce often (although it is a
bit random).
I have an Ubuntu 12.04 KVM server , using Centos 6 guests - when I
install the latest kernel for centos 6.3 -2.6.32-279.1.1.el6 - if you
reboot from inside a Centos6 vm it gets stuck in a loop between
seabios/grub
On Wed, Jul 18, 2012 at 01:53:15PM +0300, Gleb Natapov wrote:
On Wed, Jul 18, 2012 at 01:51:05PM +0300, Michael S. Tsirkin wrote:
On Wed, Jul 18, 2012 at 01:36:08PM +0300, Gleb Natapov wrote:
On Wed, Jul 18, 2012 at 01:33:35PM +0300, Michael S. Tsirkin wrote:
On Wed, Jul 18, 2012 at
On Wed, Jul 18, 2012 at 01:55:30PM +0300, Gleb Natapov wrote:
On Wed, Jul 18, 2012 at 01:53:11PM +0300, Michael S. Tsirkin wrote:
On Wed, Jul 18, 2012 at 01:49:06PM +0300, Gleb Natapov wrote:
On Wed, Jul 18, 2012 at 01:48:44PM +0300, Michael S. Tsirkin wrote:
On Wed, Jul 18, 2012 at
On Wed, Jul 18, 2012 at 02:22:19PM +0300, Michael S. Tsirkin wrote:
So as was discussed kvm_set_irq under spinlock is bad for
scalability
with multiple VCPUs. Why do we need a spinlock simply to protect
level_asserted? Let's use an atomic test and set/test and clear
On Tue, Jul 17, 2012 at 4:09 PM, Michael S. Tsirkin m...@redhat.com wrote:
On Fri, Jul 13, 2012 at 04:55:06PM +0800, Asias He wrote:
Hi folks,
[I am resending to fix the broken thread in the previous one.]
This patchset adds vhost-blk support. vhost-blk is a in kernel virito-blk
device
On Wed, Jul 18, 2012 at 02:39:10PM +0300, Michael S. Tsirkin wrote:
On Wed, Jul 18, 2012 at 02:22:19PM +0300, Michael S. Tsirkin wrote:
So as was discussed kvm_set_irq under spinlock is bad for
scalability
with multiple VCPUs. Why do we need a spinlock simply to
On Wed, Jul 18, 2012 at 02:08:43PM +0300, Michael S. Tsirkin wrote:
On Wed, Jul 18, 2012 at 01:53:15PM +0300, Gleb Natapov wrote:
On Wed, Jul 18, 2012 at 01:51:05PM +0300, Michael S. Tsirkin wrote:
On Wed, Jul 18, 2012 at 01:36:08PM +0300, Gleb Natapov wrote:
On Wed, Jul 18, 2012 at
On Wed, Jul 18, 2012 at 02:48:44PM +0300, Gleb Natapov wrote:
On Wed, Jul 18, 2012 at 02:39:10PM +0300, Michael S. Tsirkin wrote:
On Wed, Jul 18, 2012 at 02:22:19PM +0300, Michael S. Tsirkin wrote:
So as was discussed kvm_set_irq under spinlock is bad for
scalability
On 18.07.2012 11:26, Jan Kiszka wrote:
On 2012-07-18 07:45, Martin Wolf wrote:
Hello,
i was able to passthrough an AMD 7870 videocard to my win7 guest machine.
Would you add it to http://www.linux-kvm.org/page/VGA_device_assignment?
sure, i will prepare something
my host is ubuntu 12.04
On 07/17/2012 10:42 PM, Ren, Yongjie wrote:
kvm.git next branch
commit: ebf7d2e9
arch/x86/built-in.o: In function `init_hypervisor_platform':
(.init.text+0x56b1): undefined reference to `x86_hyper_kvm'
arch/x86/built-in.o: In function `init_hypervisor_platform':
(.init.text+0x56bc):
On 07/17/2012 10:42 PM, Ren, Yongjie wrote:
kvm.git next branch
commit: ebf7d2e9
arch/x86/built-in.o: In function `init_hypervisor_platform':
(.init.text+0x56b1): undefined reference to `x86_hyper_kvm'
arch/x86/built-in.o: In function `init_hypervisor_platform':
(.init.text+0x56bc):
soundcard logs added
On 18.07.2012 14:08, Martin Wolf wrote:
On 18.07.2012 11:26, Jan Kiszka wrote:
On 2012-07-18 07:45, Martin Wolf wrote:
Hello,
i was able to passthrough an AMD 7870 videocard to my win7 guest
machine.
Would you add it to
On Wed, Jul 18, 2012 at 12:59:28AM +, Nicholas A. Bellinger wrote:
From: Nicholas Bellinger n...@linux-iscsi.org
Hi folks,
The following is the RFC-v3 series of tcm_vhost target fabric driver code
currently in-flight for-3.6 mainline code.
With the merge window opening soon, the
On Wed, Jul 18, 2012 at 12:59:31AM +, Nicholas A. Bellinger wrote:
From: Nicholas Bellinger n...@risingtidesystems.com
This patch adds the initial vhost_scsi_ioctl() callers for
VHOST_SCSI_SET_ENDPOINT
and VHOST_SCSI_CLEAR_ENDPOINT respectively, and also adds struct
vhost_vring_target
Currently Pause Loop Exit (PLE) handler is doing directed yield to a
random vcpu on pl-exit. We already have filtering while choosing
the candidate to yield_to. This change adds more checks while choosing
a candidate to yield_to.
On a large vcpu guests, there is a high probability of
yielding to
From: Raghavendra K T raghavendra...@linux.vnet.ibm.com
Suggested-by: Avi Kivity a...@redhat.com
Signed-off-by: Raghavendra K T raghavendra...@linux.vnet.ibm.com
---
arch/s390/kvm/Kconfig |1 +
arch/x86/kvm/Kconfig |1 +
virt/kvm/Kconfig |3 +++
3 files changed, 5
From: Raghavendra K T raghavendra...@linux.vnet.ibm.com
Currently, on a large vcpu guests, there is a high probability of
yielding to the same vcpu who had recently done a pause-loop exit or
cpu relax intercepted. Such a yield can lead to the vcpu spinning
again and hence degrade the performance.
From: Raghavendra K T raghavendra...@linux.vnet.ibm.com
Noting pause loop exited vcpu or cpu relax intercepted helps in
filtering right candidate to yield. Wrong selection of vcpu;
i.e., a vcpu that just did a pl-exit or cpu relax intercepted may
contribute to performance degradation.
On 07/17/2012 04:50 PM, Nicholas A. Bellinger wrote:
On Tue, 2012-07-17 at 13:55 -0500, Anthony Liguori wrote:
On 07/17/2012 10:05 AM, Michael S. Tsirkin wrote:
On Wed, Jul 11, 2012 at 09:15:00PM +, Nicholas A. Bellinger wrote:
SNIP
It still seems not 100% clear whether this driver
Il 18/07/2012 15:42, Anthony Liguori ha scritto:
If you add support for a new command, you need to provide userspace a
way to disable this command. If you change what gets reported for VPD,
you need to provide userspace a way to make VPD look like what it did in
a previous version.
The QEMU
On Wed, 2012-07-18 at 14:37 +0200, Martin Wolf wrote:
soundcard logs added
On 18.07.2012 14:08, Martin Wolf wrote:
On 18.07.2012 11:26, Jan Kiszka wrote:
On 2012-07-18 07:45, Martin Wolf wrote:
Hello,
i was able to passthrough an AMD 7870 videocard to my win7 guest
machine.
Asias He as...@redhat.com writes:
On 07/18/2012 03:10 AM, Jeff Moyer wrote:
Asias He as...@redhat.com writes:
vhost-blk is a in kernel virito-blk device accelerator.
This patch is based on Liu Yuan's implementation with various
improvements and bug fixes. Notably, this patch makes guest
On 07/18/2012 07:08 PM, Raghavendra K T wrote:
From: Raghavendra K Traghavendra...@linux.vnet.ibm.com
+bool kvm_vcpu_eligible_for_directed_yield(struct kvm_vcpu *vcpu)
+{
+ bool eligible;
+
+ eligible = !vcpu-spin_loop.in_spin_loop ||
+
On 07/18/2012 10:31 PM, Jeff Moyer wrote:
Asias He as...@redhat.com writes:
On 07/18/2012 03:10 AM, Jeff Moyer wrote:
Asias He as...@redhat.com writes:
vhost-blk is a in kernel virito-blk device accelerator.
This patch is based on Liu Yuan's implementation with various
improvements and bug
On Wed, 2012-07-18 at 15:07 +0300, Michael S. Tsirkin wrote:
On Wed, Jul 18, 2012 at 02:48:44PM +0300, Gleb Natapov wrote:
On Wed, Jul 18, 2012 at 02:39:10PM +0300, Michael S. Tsirkin wrote:
On Wed, Jul 18, 2012 at 02:22:19PM +0300, Michael S. Tsirkin wrote:
So as was discussed
This series implements a dedicated thread for virtio-blk processing using Linux
AIO for raw image files only. It is based on qemu-kvm.git a0bc8c3 and somewhat
old but I wanted to share it on the list since it has been mentioned on mailing
lists and IRC recently.
These patches can be used for
Set up the virtqueue notify ioeventfd that the data plane will monitor.
Signed-off-by: Stefan Hajnoczi stefa...@linux.vnet.ibm.com
---
hw/virtio-blk.c | 37 +
1 file changed, 37 insertions(+)
diff --git a/hw/virtio-blk.c b/hw/virtio-blk.c
index
Add a simple event handling loop based on epoll(2). The data plane
thread now receives virtqueue notify and Linux AIO completion events.
The data plane thread currently does not shut down. Either it needs to
be a detached thread or have clean shutdown support.
Most of the data plane start/stop
Instead of using QEMU memory access functions, grab the host address of
guest physical address zero and simply add to this base address.
This not only simplifies vring mapping but will also make virtqueue
element access cheap by avoiding QEMU memory access functions in the I/O
code path.
Map the vring to host memory so it can be accessed without the overhead
of the QEMU memory functions.
Signed-off-by: Stefan Hajnoczi stefa...@linux.vnet.ibm.com
---
hw/virtio-blk.c | 44
1 file changed, 44 insertions(+)
diff --git a/hw/virtio-blk.c
Start with a clean slate, a virtio-blk device that supports virtio
lifecycle operations and configuration but doesn't do any actual I/O.
The I/O is going to happen in a separate optimized data plane thread.
Signed-off-by: Stefan Hajnoczi stefa...@linux.vnet.ibm.com
---
hw/virtio-blk.c | 496
Signed-off-by: Stefan Hajnoczi stefa...@linux.vnet.ibm.com
---
hw/dataplane/vring.h |8 +--
hw/virtio-blk.c | 62 ++
2 files changed, 59 insertions(+), 11 deletions(-)
diff --git a/hw/dataplane/vring.h b/hw/dataplane/vring.h
index
Requests read from the vring will be placed in a queue where they can be
merged as necessary. Once all requests have been read from the vring,
the queue can be submitted.
Signed-off-by: Stefan Hajnoczi stefa...@linux.vnet.ibm.com
---
hw/dataplane/ioq.h | 104
Signed-off-by: Stefan Hajnoczi stefa...@linux.vnet.ibm.com
---
hw/dataplane/vring.h |5 +
1 file changed, 5 insertions(+)
diff --git a/hw/dataplane/vring.h b/hw/dataplane/vring.h
index 3eab4b4..44ef4a9 100644
--- a/hw/dataplane/vring.h
+++ b/hw/dataplane/vring.h
@@ -1,6 +1,11 @@
#ifndef
RHEL6 and other new guest kernels use indirect vring descriptors to
increase the number of requests that can be batched. This fundamentally
changes vring from a scheme that requires fixed resources to something
more dynamic (although there is still an absolute maximum number of
descriptors).
---
hw/virtio-blk.c |3 +--
1 file changed, 1 insertion(+), 2 deletions(-)
diff --git a/hw/virtio-blk.c b/hw/virtio-blk.c
index 1616be5..d75c187 100644
--- a/hw/virtio-blk.c
+++ b/hw/virtio-blk.c
@@ -339,8 +339,7 @@ static void virtio_blk_handle_output(VirtIODevice *vdev,
VirtQueue *vq)
Support 4 GB physical memory accesses.
Signed-off-by: Stefan Hajnoczi stefa...@linux.vnet.ibm.com
---
hw/virtio-blk.c |7 +++
1 file changed, 7 insertions(+)
diff --git a/hw/virtio-blk.c b/hw/virtio-blk.c
index abd9386..99654f1 100644
--- a/hw/virtio-blk.c
+++ b/hw/virtio-blk.c
@@ -64,6
Although past users only needed to test and clear event notifiers, it is
useful to be able to set them too.
Signed-off-by: Stefan Hajnoczi stefa...@linux.vnet.ibm.com
---
event_notifier.c |7 +++
event_notifier.h |1 +
2 files changed, 8 insertions(+)
diff --git a/event_notifier.c
Signed-off-by: Stefan Hajnoczi stefa...@linux.vnet.ibm.com
---
hw/virtio-blk.c | 25 +
1 file changed, 17 insertions(+), 8 deletions(-)
diff --git a/hw/virtio-blk.c b/hw/virtio-blk.c
index 51807b5..8734029 100644
--- a/hw/virtio-blk.c
+++ b/hw/virtio-blk.c
@@ -215,14
With indirect vring descriptors, one can no longer assume that the
maximum number of requests is VRING_MAX / 2 (outhdr and inhdr). Now a
single indirect descriptor can contain the outhdr and inhdr so max
requests becomes VRING_MAX.
Signed-off-by: Stefan Hajnoczi stefa...@linux.vnet.ibm.com
---
---
hw/dataplane/iosched.h | 78
hw/virtio-blk.c|5
2 files changed, 83 insertions(+)
create mode 100644 hw/dataplane/iosched.h
diff --git a/hw/dataplane/iosched.h b/hw/dataplane/iosched.h
new file mode 100644
index
Commit bd8b215bce453706c3951460cc7e6627ccb90314 removed #ifdef
KVM_CAP_IRQCHIP from hw/msix.c after it turned out linux/kvm.h is not
included since msix.o is built in libhw64/. Do the same for
msix_try_notify_from_thread() since we do not have access to
linux/kvm.h here and hence KVM_CAP_IRQCHIP
This patch adds support for the VIRTIO_RING_F_EVENT_IDX feature for
interrupt mitigation. virtio-blk doesn't do anything fancy with it so
we may not see a performance improvement. This patch will allow newer
guest kernels to run successfully.
Signed-off-by: Stefan Hajnoczi
Signed-off-by: Stefan Hajnoczi stefa...@linux.vnet.ibm.com
---
hw/virtio-blk.c |2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/hw/virtio-blk.c b/hw/virtio-blk.c
index 8734029..cff2298 100644
--- a/hw/virtio-blk.c
+++ b/hw/virtio-blk.c
@@ -131,7 +131,7 @@ static void
Commit 9507e305ec54062fccc88fcf6fccf1898a7e7141 changed the
kvm_set_irq() function to kvm_irqchip_set_irq().
Signed-off-by: Stefan Hajnoczi stefa...@linux.vnet.ibm.com
---
hw/msix.c |2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/hw/msix.c b/hw/msix.c
index
This commit adds an I/O scheduler that sorts requests and merges
adjacent requests if they have the same operation type (read/write).
The code is ugly and not very well factored but it does merge
successfully.
---
hw/dataplane/ioq.h |3 +-
hw/dataplane/iosched.h | 51
Khoa Huynh k...@us.ibm.com discovered that request merging is broken.
The merged iocb is not updated to reflect the total number of iovecs and
the offset is also outdated.
This patch fixes request merging.
Signed-off-by: Stefan Hajnoczi stefa...@linux.vnet.ibm.com
---
hw/virtio-blk.c | 10
---
hw/dataplane/vring.h | 28 +++-
hw/virtio-blk.c | 47 +++
2 files changed, 58 insertions(+), 17 deletions(-)
diff --git a/hw/dataplane/vring.h b/hw/dataplane/vring.h
index 44ef4a9..cdd4d4a 100644
---
Optimize for the MSI-X enabled and vector unmasked case where it is
possible to issue the KVM ioctl() directly instead of using irqfd.
This patch introduces a new virtio binding function which tries to
notify in a thread-safe way. If this is not possible, the function
returns false. Virtio
Signed-off-by: Stefan Hajnoczi stefa...@linux.vnet.ibm.com
---
hw/dataplane/event-poll.h | 79 ---
hw/dataplane/ioq.h| 65 +--
hw/dataplane/vring.h |6 +-
hw/virtio-blk.c | 154 +++--
4
Using qemu-thread.h seemed like a nice idea but it has two limitations:
1. QEMU needs to be built with --enable-io-thread
2. qemu-kvm doesn't build with --enable-io-thread
For now just copy the pthread_create() code straight into virtio-blk.c.
Signed-off-by: Stefan Hajnoczi
On Wed, Jul 18, 2012 at 08:42:21AM -0500, Anthony Liguori wrote:
On 07/17/2012 04:50 PM, Nicholas A. Bellinger wrote:
On Tue, 2012-07-17 at 13:55 -0500, Anthony Liguori wrote:
On 07/17/2012 10:05 AM, Michael S. Tsirkin wrote:
On Wed, Jul 11, 2012 at 09:15:00PM +, Nicholas A. Bellinger
On Wed, Jul 18, 2012 at 08:47:23AM -0600, Alex Williamson wrote:
On Wed, 2012-07-18 at 15:07 +0300, Michael S. Tsirkin wrote:
On Wed, Jul 18, 2012 at 02:48:44PM +0300, Gleb Natapov wrote:
On Wed, Jul 18, 2012 at 02:39:10PM +0300, Michael S. Tsirkin wrote:
On Wed, Jul 18, 2012 at
On Wed, Jul 18, 2012 at 04:07:45PM +0100, Stefan Hajnoczi wrote:
Optimize for the MSI-X enabled and vector unmasked case where it is
possible to issue the KVM ioctl() directly instead of using irqfd.
Why? Is an ioctl faster?
This patch introduces a new virtio binding function which tries to
On Wed, Jul 18, 2012 at 04:07:27PM +0100, Stefan Hajnoczi wrote:
This series implements a dedicated thread for virtio-blk processing using
Linux
AIO for raw image files only. It is based on qemu-kvm.git a0bc8c3 and
somewhat
old but I wanted to share it on the list since it has been
On 07/18/2012 08:05 AM, k...@buildbot.b1-systems.de wrote:
The Buildbot has detected a new failure on builder next-i386 while building
kvm.
Full details are available at:
http://buildbot.b1-systems.de/kvm/builders/next-i386/builds/590
It seems like the config does not include
On Wed, 2012-07-18 at 18:38 +0300, Michael S. Tsirkin wrote:
On Wed, Jul 18, 2012 at 08:47:23AM -0600, Alex Williamson wrote:
On Wed, 2012-07-18 at 15:07 +0300, Michael S. Tsirkin wrote:
On Wed, Jul 18, 2012 at 02:48:44PM +0300, Gleb Natapov wrote:
On Wed, Jul 18, 2012 at 02:39:10PM
On Wed, Jul 18, 2012 at 04:07:27PM +0100, Stefan Hajnoczi wrote:
This series implements a dedicated thread for virtio-blk processing using
Linux
AIO for raw image files only. It is based on qemu-kvm.git a0bc8c3 and
somewhat
old but I wanted to share it on the list since it has been
On Wed, Jul 18, 2012 at 08:42:21AM -0500, Anthony Liguori wrote:
If you add support for a new command, you need to provide userspace
a way to disable this command. If you change what gets reported for
VPD, you need to provide userspace a way to make VPD look like what
it did in a previous
On Wed, Jul 18, 2012 at 09:48:01AM -0600, Alex Williamson wrote:
On Wed, 2012-07-18 at 18:38 +0300, Michael S. Tsirkin wrote:
On Wed, Jul 18, 2012 at 08:47:23AM -0600, Alex Williamson wrote:
On Wed, 2012-07-18 at 15:07 +0300, Michael S. Tsirkin wrote:
On Wed, Jul 18, 2012 at 02:48:44PM
On Wed, Jul 18, 2012 at 11:53:38AM -0400, Christoph Hellwig wrote:
On Wed, Jul 18, 2012 at 08:42:21AM -0500, Anthony Liguori wrote:
If you add support for a new command, you need to provide userspace
a way to disable this command. If you change what gets reported for
VPD, you need to
On Wed, Jul 18, 2012 at 12:59:32AM +, Nicholas A. Bellinger wrote:
From: Nicholas Bellinger n...@linux-iscsi.org
This patch adds the initial code for tcm_vhost, a Vhost level TCM
fabric driver for virtio SCSI initiators into KVM guest.
This code is currently up and running on v3.5-rc2
On Wed, Jul 18, 2012 at 12:59:28AM +, Nicholas A. Bellinger wrote:
From: Nicholas Bellinger n...@linux-iscsi.org
Hi folks,
The following is the RFC-v3 series of tcm_vhost target fabric driver code
currently in-flight for-3.6 mainline code.
So I sent some comments. I think it's in an
On 07/18/2012 10:53 AM, Christoph Hellwig wrote:
On Wed, Jul 18, 2012 at 08:42:21AM -0500, Anthony Liguori wrote:
If you add support for a new command, you need to provide userspace
a way to disable this command. If you change what gets reported for
VPD, you need to provide userspace a way to
On Jul 18, 2012, at 9:00 AM, Michael S. Tsirkin wrote:
On Wed, Jul 18, 2012 at 11:53:38AM -0400, Christoph Hellwig wrote:
On Wed, Jul 18, 2012 at 08:42:21AM -0500, Anthony Liguori wrote:
If you add support for a new command, you need to provide userspace
a way to disable this command. If
On Wed, 2012-07-18 at 11:00 -0500, Anthony Liguori wrote:
On 07/18/2012 10:53 AM, Christoph Hellwig wrote:
On Wed, Jul 18, 2012 at 08:42:21AM -0500, Anthony Liguori wrote:
If you add support for a new command, you need to provide userspace
a way to disable this command. If you change
On Mon, Jul 16, 2012 at 09:31:30PM -0700, Chegu Vinod wrote:
Changes since v3:
- using bitmap_set() instead of set_bit() in numa_add() routine.
- removed call to bitmak_zero() since bitmap_new() also zeros' the bitmap.
- Rebased to the latest qemu.
Tested-by: Eduardo Habkost
On Wed, Jul 18, 2012 at 04:42:33PM +, Rustad, Mark D wrote:
On Jul 18, 2012, at 9:00 AM, Michael S. Tsirkin wrote:
On Wed, Jul 18, 2012 at 11:53:38AM -0400, Christoph Hellwig wrote:
On Wed, Jul 18, 2012 at 08:42:21AM -0500, Anthony Liguori wrote:
If you add support for a new
On Wed, Jul 18, 2012 at 04:07:38PM +0100, Stefan Hajnoczi wrote:
RHEL6 and other new guest kernels use indirect vring descriptors to
increase the number of requests that can be batched. This fundamentally
changes vring from a scheme that requires fixed resources to something
more dynamic
On Wed, Jul 18, 2012 at 04:07:33PM +0100, Stefan Hajnoczi wrote:
Support 4 GB physical memory accesses.
Signed-off-by: Stefan Hajnoczi stefa...@linux.vnet.ibm.com
Need some sane APIs, this is just too scary.
---
hw/virtio-blk.c |7 +++
1 file changed, 7 insertions(+)
diff
1 - 100 of 147 matches
Mail list logo
