Greetings,
Following patches are intended to support SR-IOV capability in the
Linux kernel. With these patches, people can turn a PCI device with
the capability into multiple ones from software perspective, which
will benefit KVM and achieve other purposes such as QoS, security,
and etc.
SR-IOV
Signed-off-by: Yu Zhao yu.z...@intel.com
---
drivers/pci/Kconfig | 13
drivers/pci/Makefile |3 +
drivers/pci/iov.c| 178 ++
drivers/pci/pci.c|7 ++
drivers/pci/pci.h| 37 ++
drivers/pci/probe.c
Signed-off-by: Yu Zhao yu.z...@intel.com
---
drivers/pci/iov.c | 34 ++
drivers/pci/pci.h |5 +
drivers/pci/probe.c |3 +++
3 files changed, 42 insertions(+), 0 deletions(-)
diff --git a/drivers/pci/iov.c b/drivers/pci/iov.c
index
Signed-off-by: Yu Zhao yu.z...@intel.com
---
drivers/pci/iov.c | 25 +
drivers/pci/pci.c |1 +
drivers/pci/pci.h |4
3 files changed, 30 insertions(+), 0 deletions(-)
diff --git a/drivers/pci/iov.c b/drivers/pci/iov.c
index 9a1fabd..bd389b4 100644
---
Signed-off-by: Yu Zhao yu.z...@intel.com
---
Documentation/DocBook/kernel-api.tmpl |1 +
Documentation/PCI/pci-iov-howto.txt | 106 +
2 files changed, 107 insertions(+), 0 deletions(-)
create mode 100644 Documentation/PCI/pci-iov-howto.txt
diff --git
Signed-off-by: Yu Zhao yu.z...@intel.com
---
Documentation/ABI/testing/sysfs-bus-pci | 27 +++
1 files changed, 27 insertions(+), 0 deletions(-)
diff --git a/Documentation/ABI/testing/sysfs-bus-pci
b/Documentation/ABI/testing/sysfs-bus-pci
index ceddcff..84dc100 100644
Signed-off-by: Yu Zhao yu.z...@intel.com
---
drivers/pci/iov.c | 119 +++
drivers/pci/pci.h |4 ++
include/linux/pci.h |6 +++
3 files changed, 129 insertions(+), 0 deletions(-)
diff --git a/drivers/pci/iov.c b/drivers/pci/iov.c
index
Signed-off-by: Yu Zhao yu.z...@intel.com
---
drivers/pci/iov.c | 336 +++
drivers/pci/pci.h |3 +
include/linux/pci.h | 14 ++
3 files changed, 353 insertions(+), 0 deletions(-)
diff --git a/drivers/pci/iov.c b/drivers/pci/iov.c
index
One page can be unmapped from userspace, then HVA seems legal, but in fact,
PFN is illegal.
Signed-off-by: Sheng Yang sh...@linux.intel.com
---
arch/x86/kvm/vmx.c |6 +++---
1 files changed, 3 insertions(+), 3 deletions(-)
diff --git a/arch/x86/kvm/vmx.c b/arch/x86/kvm/vmx.c
index
Bugs item #2584543, was opened at 2009-02-10 11:16
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Bugs item #2584563, was opened at 2009-02-10 11:19
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Bugs item #2584662, was opened at 2009-02-10 11:56
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On Sun, 2009-01-18 at 12:17 +0800, Yu Zhao wrote:
The ATS spec can be found at http://www.pcisig.com/specifications/iov/ats/
(it requires membership).
Signed-off-by: Yu Zhao yu.z...@intel.com
If I can have an ack from Jesse for the PCI bits (which is basically
this patch), I'll take the
Hi Sheng,
On Tue, Feb 10, 2009 at 05:43:41PM +0800, Sheng Yang wrote:
One page can be unmapped from userspace, then HVA seems legal, but in fact,
PFN is illegal.
Signed-off-by: Sheng Yang sh...@linux.intel.com
---
arch/x86/kvm/vmx.c |6 +++---
1 files changed, 3 insertions(+), 3
When hot remove a device with IOMMU, should deassign it from guest and free it
from qemu. Currently, a device cannot work when it is hot added twice with
IOMMU (hot add - hot remove - hot add). This patchset fixes this issue.
Regards,
Weidong--
To unsubscribe from this list: send the line
define KVM_CAP_DEVICE_DEASSIGNMENT and KVM_DEASSIGN_PCI_DEVICE
for device deassignment.
Signed-off-by: Weidong Han weidong@intel.com
---
include/linux/kvm.h |5 +
1 files changed, 5 insertions(+), 0 deletions(-)
diff --git a/include/linux/kvm.h b/include/linux/kvm.h
index
change from KERN_INFO to KERN_WARNING to prompt users when
deassign an unassigned device
Signed-off-by: Weidong Han weidong@intel.com
---
virt/kvm/kvm_main.c |2 +-
1 files changed, 1 insertions(+), 1 deletions(-)
diff --git a/virt/kvm/kvm_main.c b/virt/kvm/kvm_main.c
index
add this ioctl to deassign a device from guest
Signed-off-by: Weidong Han weidong@intel.com
---
libkvm/libkvm.c | 14 ++
libkvm/libkvm.h | 13 +
2 files changed, 27 insertions(+), 0 deletions(-)
diff --git a/libkvm/libkvm.c b/libkvm/libkvm.c
index
when hot remove a device with iommu, should deassign it from guest,
and free it from qemu.
assign_dev_update_irqs may not be invoked when hot add a device,
so need to assign irq after assign device in init_assigned_device.
Signed-off-by: Weidong Han weidong@intel.com
---
On Sat, Feb 07, 2009 at 11:43:31AM +0100, Heiko Carstens wrote:
On Fri, 6 Feb 2009 10:46:57 -0500
Glauber Costa glom...@redhat.com wrote:
It is useful to easily grab information about whether or not
we're running on top of a hypervisor. And in case affirmative,
which one.
This
On Tue, 10 Feb 2009 11:20:23 -0200
Glauber Costa glom...@redhat.com wrote:
Anyway, just wanted to make you aware of what might come next.
Why wouldn't it be extensible? So far, I've only added an attribute. But we
can easily add others, and directories with even more attributes if we must.
On Mon, Feb 09, 2009 at 03:58:52PM +0200, Avi Kivity wrote:
Gleb Natapov wrote:
For STS register bit are cleared by writing 1 into it.
Patchset looks good; however this is a touchy area. Marcelo or glommer,
can you also review it?
I took a look at the first version, and aside for the
Hello,
I am using kvm83 on Centos 5.2
I did some iperf test on my kvm guest and I got the following results
over a 1GB connection:
~650Mbit/s inbound
~250Mbit/s outbound
that is performance appears to be asymmetric.
Is this normal ?
The inbound data flow is quite impressive as performance
Currently, this code path is posing us big troubles,
and we won't have a decent patch in time. So, temporarily
disable it.
There's a module parameter for the adventurous who want to force
it.
Signed-off-by: Glauber Costa glom...@redhat.com
Signed-off-by: Marcelo Tosatti mtosa...@redhat.com
---
This series adds infrastructure and support for using the filtering
support built into recent Linux kernels. The tap device currently
provides a small array for exact MAC address matches, plus a hash
for inexact multicast addresses. By programing this filter, we can
reduce the number of
Some interfaces, such as tap, can set a filter to prevent unwanted
packets from interrupting qemu. This patch adds infrastructure for
vlan clients to request a set of filtering parameters. The main
client interface for this is the new qemu_vlan_rxfilter() function.
For simplicity, we restrict
The Linux tap driver provides an ioctl to set a TX filter. Setting
this restricts the packets received onto the vlan. We provide a
hotplug callback to clear the filter when a new device gets added.
The new rxfilter=off option can be used to disable exporting this
feature to backend drivers.
Make use of qemu_vlan_rxfilter so that we can filter at a lower
level. We implement callbacks for devices being added and removed
so that we can fall back to our own filtering or make another attempt
to push filtering off to someone else.
Signed-off-by: Alex Williamson alex.william...@hp.com
---
Make use of qemu_vlan_rxfilter so that we can filter at a lower
level. We implement callbacks for devices being added and removed
so that we can fall back to our own filtering or make another attempt
to push filtering off to someone else.
Signed-off-by: Alex Williamson alex.william...@hp.com
---
KVM's paravirt mmu pte batching has issues with, at least, kernel
updates from DEBUG_PAGEALLOC.
This has been experienced with slab allocation from irq context from
within lazy mmu sections:
https://bugzilla.redhat.com/show_bug.cgi?id=480822
DEBUG_PAGEALLOC will map/unmap the kernel pagetables
Marcelo Tosatti wrote:
KVM's paravirt mmu pte batching has issues with, at least, kernel
updates from DEBUG_PAGEALLOC.
This has been experienced with slab allocation from irq context from
within lazy mmu sections:
https://bugzilla.redhat.com/show_bug.cgi?id=480822
DEBUG_PAGEALLOC will
On Tue, Feb 10, 2009 at 02:17:49PM -0800, Jeremy Fitzhardinge wrote:
Marcelo Tosatti wrote:
KVM's paravirt mmu pte batching has issues with, at least, kernel
updates from DEBUG_PAGEALLOC.
This has been experienced with slab allocation from irq context from
within lazy mmu sections:
This is better.
Currently, this code path is posing us big troubles,
and we won't have a decent patch in time. So, temporarily
disable it.
Signed-off-by: Glauber Costa glom...@redhat.com
Signed-off-by: Marcelo Tosatti mtosa...@redhat.com
Index: kvm/arch/x86/kvm/x86.c
Marcelo Tosatti wrote:
On Tue, Feb 10, 2009 at 02:17:49PM -0800, Jeremy Fitzhardinge wrote:
Marcelo Tosatti wrote:
KVM's paravirt mmu pte batching has issues with, at least, kernel
updates from DEBUG_PAGEALLOC.
This has been experienced with slab allocation from irq context from
I've temporarily got vmware server running on my new server, and intend to
migrate over to kvm as soon as possible, if it provides enough incentive
(extra performance, features). Currently I'm waiting for full iommu support in
the kernel, modules and userspace, and didn't plan to migrate till I
On Tuesday 10 February 2009 20:14:32 Marcelo Tosatti wrote:
Hi Sheng,
On Tue, Feb 10, 2009 at 05:43:41PM +0800, Sheng Yang wrote:
One page can be unmapped from userspace, then HVA seems legal, but in
fact, PFN is illegal.
Signed-off-by: Sheng Yang sh...@linux.intel.com
---
On Wednesday 11 February 2009 10:43:43 Sheng Yang wrote:
On Tuesday 10 February 2009 20:14:32 Marcelo Tosatti wrote:
Hi Sheng,
On Tue, Feb 10, 2009 at 05:43:41PM +0800, Sheng Yang wrote:
One page can be unmapped from userspace, then HVA seems legal, but in
fact, PFN is illegal.
Removed the unnecessary works. Thanks for Marcelo's reminder.
Signed-off-by: Sheng Yang sh...@linux.intel.com
---
arch/x86/kvm/vmx.c | 27 +--
1 files changed, 1 insertions(+), 26 deletions(-)
diff --git a/arch/x86/kvm/vmx.c b/arch/x86/kvm/vmx.c
index 9913a1d..8704d36
Removed the unnecessary works.
Signed-off-by: Sheng Yang sh...@linux.intel.com
---
arch/x86/kvm/vmx.c | 30 +-
1 files changed, 1 insertions(+), 29 deletions(-)
diff --git a/arch/x86/kvm/vmx.c b/arch/x86/kvm/vmx.c
index 9913a1d..ff2cb11 100644
---
Hi,
As you see from the subject, I'm getting qcow2 corruption.
I have a Windows 2000 guest which boots and runs fine in kvm-72, fails
with a blue-screen indicating file corruption errors in kvm-73 through
to kvm-83 (the latest), and succeeds if I replace block-qcow2.c with
the version from
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