Calling to kvm_mmu_load

2013-10-21 Thread Arthur Chunqi Li
Hi there, I noticed that kvm_mmu_reload() is called every time in vcpu enter, and kvm_mmu_load() is called in this function when root_hpa is INVALID_PAGE. I get confused why and when root_hpa can be set to INVALID_PAGE? I find one condition that if vcpu get request KVM_REQ_MMU_RELOAD,

Re: virtio: Large number of tcp connections, vhost_net seems to be a bottleneck

2013-10-21 Thread Sahid Ferdjaoui
Thanks for your back Mike, I did some tests with ovs2.0 and the number of tcp connections up to 1 000 000 easily. So if I understand well the deal is not in relation with vhost_net or it can have a link between them? http://i.imgur.com/kJJWtOk.png s. - Original Message - From: Mike

[v3] KVM: PPC: Book3E HV: call RECONCILE_IRQ_STATE to sync the software state

2013-10-21 Thread Tiejun Chen
We enter with interrupts disabled in hardware, but we need to call SOFT_DISABLE_INTS anyway to ensure that the software state is kept in sync instead of calling hard_irq_disable() directly. Signed-off-by: Tiejun Chen tiejun.c...@windriver.com --- v3: Base on the latest tree, now we can use

Re: [v3] KVM: PPC: Book3E HV: call RECONCILE_IRQ_STATE to sync the software state

2013-10-21 Thread “tiejun.chen”
On 10/21/2013 05:49 PM, Tiejun Chen wrote: We enter with interrupts disabled in hardware, but we need to call SOFT_DISABLE_INTS anyway to ensure that the software state OOPS! Here I should change this with RECONCILE_IRQ_STATE :( Please ignore this to see next version directly. Tiejun is

[v4][PATCH] KVM: PPC: Book3E HV: call RECONCILE_IRQ_STATE to sync the software state

2013-10-21 Thread Tiejun Chen
We enter with interrupts disabled in hardware, but we need to call RECONCILE_IRQ_STATE anyway to ensure that the software state is kept in sync instead of calling hard_irq_disable() directly. Signed-off-by: Tiejun Chen tiejun.c...@windriver.com --- v4: Fix one typo in the patch description. v3:

Re: [PATCH 9/9] arm: add vectors support

2013-10-21 Thread Christoffer Dall
On Sun, Oct 20, 2013 at 06:35:34PM +0200, Andrew Jones wrote: On Thu, Oct 17, 2013 at 11:58:43AM -0700, Christoffer Dall wrote: On Thu, Oct 17, 2013 at 12:38:59PM +0200, Andrew Jones wrote: On Wed, Oct 16, 2013 at 06:06:42PM -0700, Christoffer Dall wrote: +++ b/arm/cstart.S @@ -1,5

Re: lkvm: virtio-net-rx general protection error

2013-10-21 Thread Pekka Enberg
On 10/21/13 1:35 PM, Milan Kocian wrote: hi, sorry for writing it directly to you but I didn't find better recipient. Does exist some mailing-list about lkvm? I found the crash in virtio-net-rx thread (I can reproduce it every time by 'aptitude update' in VM): traps: virtio-net-rx[28933]

Re: [Qemu-devel] [RFH] Qemu main thread is blocked in g_poll in windows guest

2013-10-21 Thread David Weber
We have the exactly same problem on our NUMA systems. The clock of windows 2008 guests sometimes just stops and it becomes slow when you are connected via rdp. After connecting to qemu's vnc server everything runs fine again. The problem seems to occour more often when the host is under pressure.

[Bug 61971] Migration problem of qemu-kvm guests

2013-10-21 Thread bugzilla-daemon
https://bugzilla.kernel.org/show_bug.cgi?id=61971 Magnus Boden mag...@boden.cx changed: What|Removed |Added Status|NEW |RESOLVED

[Bug 63291] KVM USB passthrough to Windows 7 guest fails with error -110, hangs

2013-10-21 Thread bugzilla-daemon
https://bugzilla.kernel.org/show_bug.cgi?id=63291 Greg Sheremeta g...@gregsheremeta.com changed: What|Removed |Added Status|NEW |RESOLVED

[PATCH] x86 kconfig: Add recommendation to enable paravirt spinlock

2013-10-21 Thread Raghavendra K T
Since paravirt spinlock optimization are in 3.12 kernel, we have very good performance benefit for paravirtualized KVM / Xen kernel. Also we no longer suffer from 5% side effect on native kernel. Signed-off-by: Raghavendra K T raghavendra...@linux.vnet.ibm.com --- Would like to thank Sander for

Re: [PATCH] x86 kconfig: Add recommendation to enable paravirt spinlock

2013-10-21 Thread Konrad Rzeszutek Wilk
On Mon, Oct 21, 2013 at 09:35:08PM +0530, Raghavendra K T wrote: Since paravirt spinlock optimization are in 3.12 kernel, we have very good performance benefit for paravirtualized KVM / Xen kernel. Also we no longer suffer from 5% side effect on native kernel. Yeey! Signed-off-by:

[v3] KVM: PPC: Book3E HV: call RECONCILE_IRQ_STATE to sync the software state

2013-10-21 Thread Tiejun Chen
We enter with interrupts disabled in hardware, but we need to call SOFT_DISABLE_INTS anyway to ensure that the software state is kept in sync instead of calling hard_irq_disable() directly. Signed-off-by: Tiejun Chen tiejun.c...@windriver.com --- v3: Base on the latest tree, now we can use

Re: [v3] KVM: PPC: Book3E HV: call RECONCILE_IRQ_STATE to sync the software state

2013-10-21 Thread “tiejun.chen”
On 10/21/2013 05:49 PM, Tiejun Chen wrote: We enter with interrupts disabled in hardware, but we need to call SOFT_DISABLE_INTS anyway to ensure that the software state OOPS! Here I should change this with RECONCILE_IRQ_STATE :( Please ignore this to see next version directly. Tiejun is

[v4][PATCH] KVM: PPC: Book3E HV: call RECONCILE_IRQ_STATE to sync the software state

2013-10-21 Thread Tiejun Chen
We enter with interrupts disabled in hardware, but we need to call RECONCILE_IRQ_STATE anyway to ensure that the software state is kept in sync instead of calling hard_irq_disable() directly. Signed-off-by: Tiejun Chen tiejun.c...@windriver.com --- v4: Fix one typo in the patch description. v3: