On 12 November 2014 17:57, Antonios Motakis
a.mota...@virtualopensystems.com wrote:
Hello Hongbo,
On Wed, Nov 12, 2014 at 10:52 AM, Hongbo Zhang hongbo.zh...@linaro.org
wrote:
On 28 October 2014 02:07, Antonios Motakis
a.mota...@virtualopensystems.com wrote:
Enable building the VFIO
On Thu, Nov 13, 2014 at 12:44:39AM -0200, Marcelo Tosatti wrote:
The periodic kvmclock sync can be an undesired source of latencies.
Signed-off-by: Marcelo Tosatti mtosa...@redhat.com
diff --git a/arch/x86/kvm/x86.c b/arch/x86/kvm/x86.c
index 0033df3..be56fd3 100644
---
On Thu, Nov 13, 2014 at 09:40:41AM +0100, Andrew Jones wrote:
On Thu, Nov 13, 2014 at 12:44:39AM -0200, Marcelo Tosatti wrote:
The periodic kvmclock sync can be an undesired source of latencies.
Signed-off-by: Marcelo Tosatti mtosa...@redhat.com
diff --git a/arch/x86/kvm/x86.c
On Mon, Nov 10, 2014 at 6:27 PM, Christoffer Dall
christoffer.d...@linaro.org wrote:
On Mon, Nov 10, 2014 at 05:09:07PM +0200, Nikolay Nikolaev wrote:
Hello,
On Fri, Mar 28, 2014 at 9:09 PM, Christoffer Dall
christoffer.d...@linaro.org wrote:
On Thu, Mar 13, 2014 at 04:57:26PM +0100,
On 13/11/2014 04:00, Chris J Arges wrote:
When running the tsc_adjust kvm-unit-test on an AMD processor with the
IA32_TSC_ADJUST feature enabled, the WARN_ON in svm_adjust_tsc_offset can be
triggered. This WARN_ON checks for a negative adjustment in case __scale_tsc
is called; however it may
On Thu, Nov 13, 2014 at 12:31:30AM +, Luck, Tony wrote:
Is this something I can try under KVM?
I don't know if KVM has a way to simulate a machine check event.
I've been thinking about it recently too - adding MCA functionality to
qemu/kvm could be very useful, especially the
On Thu, Nov 13, 2014 at 12:45:42PM +0200, Nikolay Nikolaev wrote:
[...]
Going through the vgic_handle_mmio we see that it will require large
refactoring:
- there are 15 MMIO ranges for the vgic now - each should be
registered as a separate device
- the handler of each range should
[resending to Andre's actual e-mail address]
On Thu, Nov 13, 2014 at 12:20 PM, Christoffer Dall
christoffer.d...@linaro.org wrote:
On Thu, Nov 13, 2014 at 12:45:42PM +0200, Nikolay Nikolaev wrote:
[...]
Going through the vgic_handle_mmio we see that it will require large
refactoring:
On Thu, Nov 13, 2014 at 11:44:02AM +0100, Andrew Jones wrote:
On Thu, Nov 13, 2014 at 09:40:41AM +0100, Andrew Jones wrote:
On Thu, Nov 13, 2014 at 12:44:39AM -0200, Marcelo Tosatti wrote:
The periodic kvmclock sync can be an undesired source of latencies.
Signed-off-by: Marcelo
Hi Nikolay,
On 13/11/14 11:37, Marc Zyngier wrote:
[fixing Andre's email address]
On 13/11/14 11:20, Christoffer Dall wrote:
On Thu, Nov 13, 2014 at 12:45:42PM +0200, Nikolay Nikolaev wrote:
[...]
Going through the vgic_handle_mmio we see that it will require large
refactoring:
-
-BEGIN PGP SIGNED MESSAGE-
Hash: SHA1
On 12/11/14 20:02, Stefan Hajnoczi wrote:
On Tue, Nov 11, 2014 at 05:12:58PM +, Ben Hutchings wrote:
This reverts commit 88e0e0e5aa722b193c8758c8b45d041de5316924 for
the tap drivers, but leaves UFO disabled in virtio_net.
libvirt at least
On Thu, Nov 13, 2014 at 1:52 PM, Andre Przywara andre.przyw...@arm.com wrote:
Hi Nikolay,
On 13/11/14 11:37, Marc Zyngier wrote:
[fixing Andre's email address]
On 13/11/14 11:20, Christoffer Dall wrote:
On Thu, Nov 13, 2014 at 12:45:42PM +0200, Nikolay Nikolaev wrote:
[...]
Going
Hi Nikolay,
On 13/11/14 12:29, Nikolay Nikolaev wrote:
On Thu, Nov 13, 2014 at 1:52 PM, Andre Przywara andre.przyw...@arm.com
wrote:
Hi Nikolay,
On 13/11/14 11:37, Marc Zyngier wrote:
[fixing Andre's email address]
On 13/11/14 11:20, Christoffer Dall wrote:
On Thu, Nov 13, 2014 at
13.11.2014 05:44, Marcelo Tosatti wrote:
The periodic kvmclock sync can be an undesired source of latencies.
Shouldn't this be a per-vm property, not global host property?
Maybe it's better to control frequency of syncs (with 0=disabled)?
Thanks,
/mjt
--
To unsubscribe from this list: send the
When kvm_register_device_ops() fails, also need call free_percpu_irq()
just like others have down within kvm_vgic_hyp_init().
Signed-off-by: Chen Gang gang.chen.5...@gmail.com
---
virt/kvm/arm/vgic.c | 10 --
1 file changed, 8 insertions(+), 2 deletions(-)
diff --git
On Thu, Nov 13, 2014 at 4:23 PM, Eric Auger eric.au...@linaro.org wrote:
On 11/13/2014 03:16 PM, Eric Auger wrote:
On 11/13/2014 11:45 AM, Nikolay Nikolaev wrote:
On Mon, Nov 10, 2014 at 6:27 PM, Christoffer Dall
christoffer.d...@linaro.org wrote:
On Mon, Nov 10, 2014 at 05:09:07PM +0200,
Hi Nikolay,
On Thu, Nov 13, 2014 at 4:02 PM, Nikolay Nikolaev
n.nikol...@virtualopensystems.com wrote:
[...]
We're reconsidering ioeventfds patchseries and we tried to evaluate
what you suggested here.
this special-casing of the vgic is now really terrible. Is there
anything holding you
On 13/11/14 15:04, Chen Gang wrote:
When kvm_register_device_ops() fails, also need call free_percpu_irq()
just like others have down within kvm_vgic_hyp_init().
Signed-off-by: Chen Gang gang.chen.5...@gmail.com
---
virt/kvm/arm/vgic.c | 10 --
1 file changed, 8 insertions(+), 2
On 13/11/14 15:02, Nikolay Nikolaev wrote:
On Thu, Nov 13, 2014 at 4:23 PM, Eric Auger eric.au...@linaro.org wrote:
On 11/13/2014 03:16 PM, Eric Auger wrote:
On 11/13/2014 11:45 AM, Nikolay Nikolaev wrote:
On Mon, Nov 10, 2014 at 6:27 PM, Christoffer Dall
christoffer.d...@linaro.org wrote:
On 11/13/2014 04:31 PM, Andre Przywara wrote:
On 13/11/14 15:02, Nikolay Nikolaev wrote:
On Thu, Nov 13, 2014 at 4:23 PM, Eric Auger eric.au...@linaro.org wrote:
On 11/13/2014 03:16 PM, Eric Auger wrote:
On 11/13/2014 11:45 AM, Nikolay Nikolaev wrote:
On Mon, Nov 10, 2014 at 6:27 PM,
memslots is a sorted array, when slot changes in it
with current heapsort it would take O(n log n) time
to update array, while using insertion sort like
algorithm on array with 1 item out of order will
take only O(n) time.
Replace current heapsort with custom sort that
takes advantage of memslots
I am trying to use VFIO and pci-bind to pass a NVidia VGA card and it's
companion audio device through to a VM I am trying to start up.
I am trying this on two different hardware platforms, a HP zbook 15 and
a HP z800 workstation. Both systems are running Ubuntu 14.04.
Each time I try to
On 13/11/2014 17:31, Igor Mammedov wrote:
memslots is a sorted array, when slot changes in it
with current heapsort it would take O(n log n) time
to update array, while using insertion sort like
algorithm on array with 1 item out of order will
take only O(n) time.
Replace current
On Thu, 2014-11-13 at 11:50 -0500, Steven DuChene wrote:
I am trying to use VFIO and pci-bind to pass a NVidia VGA card and it's
companion audio device through to a VM I am trying to start up.
I am trying this on two different hardware platforms, a HP zbook 15 and
a HP z800 workstation.
Alex:
Thanks for the quick reply.
Yes, I am using qemu:args in the xml file.
I looked around via google for an example of how to use hostdev in the
xml file for the audio or video devices.
I seem to recall the only example I could find was a hostdev section in
the libvirt wiki for a NIC card.
2014-11-13 12:32+0100, Andrew Jones:
On Thu, Nov 13, 2014 at 11:44:02AM +0100, Andrew Jones wrote:
On Thu, Nov 13, 2014 at 09:40:41AM +0100, Andrew Jones wrote:
On Thu, Nov 13, 2014 at 12:44:39AM -0200, Marcelo Tosatti wrote:
The periodic kvmclock sync can be an undesired source of
On 13/11/2014 18:46, Radim Krčmář wrote:
Yes, or add callbacks to sysfs writes that would schedule/cancel this
work. (But having a for_every_vm loop is quite ugly.)
I'd be happy with a 'const kvmclock_periodic_sync'.
(Having useless timers is weird if we care about latencies.)
I agree.
On Thu, 2014-11-13 at 12:36 -0500, Steven DuChene wrote:
Alex:
Thanks for the quick reply.
Yes, I am using qemu:args in the xml file.
I looked around via google for an example of how to use hostdev in the
xml file for the audio or video devices.
I seem to recall the only example I could
On Thu, Nov 13, 2014 at 06:47:40PM +0100, Paolo Bonzini wrote:
On 13/11/2014 18:46, Radim Krčmář wrote:
Yes, or add callbacks to sysfs writes that would schedule/cancel this
work. (But having a for_every_vm loop is quite ugly.)
I'd be happy with a 'const kvmclock_periodic_sync'.
2014-11-13 18:57+0100, Andrew Jones:
On Thu, Nov 13, 2014 at 06:47:40PM +0100, Paolo Bonzini wrote:
On 13/11/2014 18:46, Radim Krčmář wrote:
Yes, or add callbacks to sysfs writes that would schedule/cancel this
work. (But having a for_every_vm loop is quite ugly.)
I'd be
The following changes since commit 206c5f60a3d902bc4b56dab2de3e88de5eb06108:
Linux 3.18-rc4 (2014-11-09 14:55:29 -0800)
are available in the git repository at:
git://git.kernel.org/pub/scm/linux/kernel/git/mst/vhost.git tags/for_linus
for you to fetch changes up to
On Thu, Nov 13, 2014 at 11:59:37AM +0100, Borislav Petkov wrote:
I've been thinking about it recently too - adding MCA functionality to
qemu/kvm could be very useful, especially the thresholding stuff, for
testing RAS kernel code.
Btw, qemu monitor has a mce injection command with which I was
memslots is a sorted array, when slot changes in it
with current heapsort it would take O(n log n) time
to update array, while using insertion sort like
algorithm on array with 1 item out of order will
take only O(n) time.
Replace current heapsort with custom sort that
takes advantage of memslots
This patch adds trace points in the guest entry and exit code and also
for exceptions handled by the host in kernel mode - hypercalls and page
faults. The new events are added to /sys/kernel/debug/tracing/events
under a new subsystem called kvm_hv.
Acked-by: Paul Mackerras pau...@samba.org
Hi Tang,
On Tue, Nov 11, 2014 at 01:35:29PM +0800, Tang Chen wrote:
Hi Wanpeng,
Sorry for the late.
I think I have totally missed this thread.
I opened lockdep and RCU debug, and tried on 3.18-rc1. But I didn't
get the warning.
I also opened lockdep and RCU debug, and tried 3.18.0-rc2 on a Ivy
kvm_get_dirty_log() provides generic handling of dirty bitmap, currently reused
by several architectures. Building on that we intrdoduce
kvm_get_dirty_log_protect() adding write protection to mark these pages dirty
for future write access, before next KVM_GET_DIRTY_LOG ioctl call from user
space.
Allow architectures to override the generic kvm_flush_remote_tlbs()
function via HAVE_KVM_ARCH_TLB_FLUSH_ALL. ARMv7 will need this to
provide its own TLB flush interface.
Reviewed-by: Marc Zyngier marc.zyng...@arm.com
Reviewed-by: Paolo Bonzini pbonz...@redhat.com
Signed-off-by: Mario Smarduch
Patch series adds support for ARMv7 and generic dirty page logging support.
As we try to move towards generic dirty page logging additional logic is moved
to generic code. Initially x86, armv7 KVM_GET_DIRTY_LOG reuses generic
code, shortly followed by armv8 patches.
Testing:
- Generally live
From: Paolo Bonzini pbonz...@redhat.com
We now have a generic function that does most of the work of
kvm_vm_ioctl_get_dirty_log, now use it.
Signed-off-by: Mario Smarduch m.smard...@samsung.com
---
arch/x86/include/asm/kvm_host.h |3 --
arch/x86/kvm/Kconfig|1 +
This patch adds ARMv7 architecture TLB Flush function.
Acked-by: Marc Zyngier marc.zyng...@arm.com
Acked-by: Christoffer Dall christoffer.dall at linaro.org
Signed-off-by: Mario Smarduch m.smard...@samsung.com
---
arch/arm/include/asm/kvm_asm.h |1 +
arch/arm/include/asm/kvm_host.h | 12
Add support for initial write protection of VM memslots. This patch
series assumes that huge PUDs will not be used in 2nd stage tables, which is
always valid on ARMv7.
Signed-off-by: Mario Smarduch m.smard...@samsung.com
---
arch/arm/include/asm/kvm_host.h |2 +
Add support to track dirty pages between user space KVM_GET_DIRTY_LOG ioctl
calls. We call kvm_get_dirty_log_protect() function to do most of the work.
Reviewed-by: Marc Zyngier marc.zyng...@arm.com
Signed-off-by: Mario Smarduch m.smard...@samsung.com
---
arch/arm/kvm/Kconfig |1 +
This patch adds support for handling 2nd stage page faults during migration,
it disables faulting in huge pages, and dissolves huge pages to page tables.
In case migration is canceled huge pages are used again.
Reviewed-by: Christoffer Dall christoffer.dall at linaro.org
Signed-off-by: Mario
Hi Paolo,
I changed your patch a little to use a Kconfig symbol,
hope that's fine with you.
- Mario
On 11/13/2014 05:57 PM, Mario Smarduch wrote:
From: Paolo Bonzini pbonz...@redhat.com
We now have a generic function that does most of the work of
kvm_vm_ioctl_get_dirty_log, now use it.
Thanks for the sharing. Will do more tests. :)
On 11/14/2014 07:39 AM, Wanpeng Li wrote:
Hi Tang,
On Tue, Nov 11, 2014 at 01:35:29PM +0800, Tang Chen wrote:
Hi Wanpeng,
Sorry for the late.
I think I have totally missed this thread.
I opened lockdep and RCU debug, and tried on 3.18-rc1.
Dear Sir
Did your website get hit by Google Penguin update on October 17th 2014? What
basically is Google Penguin Update? It is actually a code name for Google
algorithm which aims at decreasing your websites search engine rankings that
violate Googles guidelines by using black hat SEO
This patch adds trace points in the guest entry and exit code and also
for exceptions handled by the host in kernel mode - hypercalls and page
faults. The new events are added to /sys/kernel/debug/tracing/events
under a new subsystem called kvm_hv.
Acked-by: Paul Mackerras pau...@samba.org
Patch series adds support for ARMv7 and generic dirty page logging support.
As we try to move towards generic dirty page logging additional logic is moved
to generic code. Initially x86, armv7 KVM_GET_DIRTY_LOG reuses generic
code, shortly followed by armv8 patches.
Testing:
- Generally live
kvm_get_dirty_log() provides generic handling of dirty bitmap, currently reused
by several architectures. Building on that we intrdoduce
kvm_get_dirty_log_protect() adding write protection to mark these pages dirty
for future write access, before next KVM_GET_DIRTY_LOG ioctl call from user
space.
Allow architectures to override the generic kvm_flush_remote_tlbs()
function via HAVE_KVM_ARCH_TLB_FLUSH_ALL. ARMv7 will need this to
provide its own TLB flush interface.
Reviewed-by: Marc Zyngier marc.zyng...@arm.com
Reviewed-by: Paolo Bonzini pbonz...@redhat.com
Signed-off-by: Mario Smarduch
Add support for initial write protection of VM memslots. This patch
series assumes that huge PUDs will not be used in 2nd stage tables, which is
always valid on ARMv7.
Signed-off-by: Mario Smarduch m.smard...@samsung.com
---
arch/arm/include/asm/kvm_host.h |2 +
Add support to track dirty pages between user space KVM_GET_DIRTY_LOG ioctl
calls. We call kvm_get_dirty_log_protect() function to do most of the work.
Reviewed-by: Marc Zyngier marc.zyng...@arm.com
Signed-off-by: Mario Smarduch m.smard...@samsung.com
---
arch/arm/kvm/Kconfig |1 +
This patch adds support for handling 2nd stage page faults during migration,
it disables faulting in huge pages, and dissolves huge pages to page tables.
In case migration is canceled huge pages are used again.
Reviewed-by: Christoffer Dall christoffer.dall at linaro.org
Signed-off-by: Mario
Hi Paolo,
I changed your patch a little to use a Kconfig symbol,
hope that's fine with you.
- Mario
On 11/13/2014 05:57 PM, Mario Smarduch wrote:
From: Paolo Bonzini pbonz...@redhat.com
We now have a generic function that does most of the work of
kvm_vm_ioctl_get_dirty_log, now use it.
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