Hi all,
I have KVM running successfully on opensuse 11.3 (64bit) with a opensuse
11.1 guest. I am using hardware virtualization and want to experiment
with PCI passthrough with the (wired) network card on my laptop because
I want to repeat similar steps later on a server (with a TV card). The
From: Jason Wang
Date: Fri, 05 Nov 2010 10:50:08 +0800
> For device that supports VIRTIO_NET_F_STATUS, there's no need to
> assume the link is up and we need to call nerif_carrier_off() before
> querying device status, otherwise we may get wrong operstate after
> diver was loaded because the link
This not only makes pci_find_capability a directly lookup, but also
allows us to better track added capabilities and avoids the proliferation
of random additional capability offset markers.
Signed-off-by: Alex Williamson
---
hw/msix.c | 15 +++
hw/pci.c | 20 ++-
These are just as easy to handle out of the main config read/write
handlers. Also expand cap_map to config_map so we can use it to
track all of config space.
Signed-off-by: Alex Williamson
---
hw/device-assignment.c | 22 +++-
hw/pci.c | 66 ---
Now that common PCI code doesn't have a hangup on capabilities
being contiguous, move assigned device capabilities to match
their offset on physical hardware. This helps for drivers that
assume a capability configuration and don't bother searching.
We can also remove several calls to assigned_dev
Any handlers that actually want to interact with specific capabilities
are going to want to know the capability ID being accessed. With the
capability map, this is readily available, so we can save handlers the
trouble of figuring it out.
Signed-off-by: Alex Williamson
---
hw/device-assignment
Convert to use common pci_add_capabilities() rather than creating
our own mess.
Signed-off-by: Alex Williamson
---
hw/device-assignment.c | 112 +++-
1 files changed, 63 insertions(+), 49 deletions(-)
diff --git a/hw/device-assignment.c b/hw/device-
Capabilities are allocated in bytes, so we can track both whether
a byte is used and by what capability in the same structure.
Remove pci_reserve_capability() as there are no users.
Signed-off-by: Alex Williamson
---
hw/pci.c | 16 +---
hw/pci.h |6 ++
2 files changed, 7
Capabilities aren't required to be contiguous, so cap.length never
really made much sense. Likewise, cap.start is mostly meaningless
too. Both of these are better served by the capability map. We
can also get rid of cap.supported, since it's really now unused
and redundant with flag in the statu
This interface doesn't make much sense, adding a capability can
take care of everything, just provide a means to register
capability read/write handlers.
Device assignment does it's own thing, so requires a couple
ugly hacks that will be cleaned by subsequent patches.
Signed-off-by: Alex Williams
Make use of wmask, just like the rest of config space.
Signed-off-by: Alex Williamson
---
hw/pci.c | 22 ++
1 files changed, 10 insertions(+), 12 deletions(-)
diff --git a/hw/pci.c b/hw/pci.c
index 92aaa85..4bc5882 100644
--- a/hw/pci.c
+++ b/hw/pci.c
@@ -1175,13 +1175,15
v2:
- Fixed the function name in 1/8 per Michael's suggestion.
- Removed capability specific config read/write registration
- Added more checks to add_capability
- Added capability lookup table to PCIDevice
I've dropped the RFC patch to add more capabilities to device
assignment while I do so
Hi Avi,
unfortunately I'm unable to reproduce this on any of my testing machine and
I don't have access to problematic machine ATM.
I'll report when I get chance to try again (and bisect if possible)
n.
On Tue, Nov 09, 2010 at 11:57:11AM +0200, Avi Kivity wrote:
> On 11/08/2010 09:41 PM, Nikola Ci
At last weeks' LPC, there was some interest in my patches for Auto/Lazy
Migration to improve locality and possibly performance of unpinned guest
VMs on a NUMA platform. As a result of these conversations I have reposted
the patches [4 series, ~40 patches] as RFCs to the linux-numa list. Links
to
On Fri, 2010-11-12 at 10:48 +0200, Michael S. Tsirkin wrote:
> On Thu, Nov 11, 2010 at 11:03:19PM -0700, Alex Williamson wrote:
> > On Fri, 2010-11-12 at 07:22 +0200, Michael S. Tsirkin wrote:
> > > On Thu, Nov 11, 2010 at 07:55:01PM -0700, Alex Williamson wrote:
> > > > Make use of wmask, just lik
On Fri, 2010-11-12 at 11:11 +0200, Michael S. Tsirkin wrote:
> On Thu, Nov 11, 2010 at 11:30:07PM -0700, Alex Williamson wrote:
> > On Fri, 2010-11-12 at 07:36 +0200, Michael S. Tsirkin wrote:
> > > On Thu, Nov 11, 2010 at 07:56:46PM -0700, Alex Williamson wrote:
> > > > Some drivers depend on find
On Fri, 2010-11-12 at 11:02 +0200, Michael S. Tsirkin wrote:
> On Thu, Nov 11, 2010 at 11:07:15PM -0700, Alex Williamson wrote:
> > On Fri, 2010-11-12 at 07:40 +0200, Michael S. Tsirkin wrote:
> > > On Thu, Nov 11, 2010 at 07:55:43PM -0700, Alex Williamson wrote:
> > > > Capabilities are allocated
On Fri, Nov 12, 2010 at 1:24 PM, Stefan Hajnoczi
wrote:
> @@ -1046,6 +1087,11 @@ int kvm_has_xcrs(void)
> return kvm_state->xcrs;
> }
>
> +int kvm_has_many_ioeventfds(void)
> +{
> + return kvm_state->many_ioeventfds;
> +}
> +
Missing if (!kvm_enabled()) { return 0; }. Will fix in next ve
On Fri, 2010-11-12 at 11:20 +0200, Michael S. Tsirkin wrote:
> On Thu, Nov 11, 2010 at 07:56:13PM -0700, Alex Williamson wrote:
> > Now that common PCI code doesn't have a hangup on capabilities
> > being contiguous,
>
> Hmm, this comment confused me : there's no requirement of
> contigious alloca
The VirtIOPCIProxy bugs field is currently used to enable workarounds
for older guests. Rename it to flags so that other per-device behavior
can be tracked.
A later patch uses the flags field to remember whether ioeventfd should
be used for virtqueue host notification.
Signed-off-by: Stefan Hajn
Virtqueue notify is currently handled synchronously in userspace virtio. This
prevents the vcpu from executing guest code while hardware emulation code
handles the notify.
On systems that support KVM, the ioeventfd mechanism can be used to make
virtqueue notify a lightweight exit by deferring har
There used to be a limit of 6 KVM io bus devices inside the kernel. On
such a kernel, don't use ioeventfd for virtqueue host notification since
the limit is reached too easily. This ensures that existing vhost-net
setups (which always use ioeventfd) have ioeventfds available so they
can continue
On Fri, Nov 12, 2010 at 9:25 AM, Michael S. Tsirkin wrote:
> On Fri, Nov 12, 2010 at 09:18:48AM +, Stefan Hajnoczi wrote:
>> On Thu, Nov 11, 2010 at 3:53 PM, Michael S. Tsirkin wrote:
>> > On Thu, Nov 11, 2010 at 01:47:21PM +, Stefan Hajnoczi wrote:
>> >> Care must be taken not to interfe
On 11/08/10 07:44, M. Mohan Kumar wrote:
>> This patch introduce a fallback mechanism for old systems that do not
>> support utimensat. This will fix build failure with following warnings:
>>
>> hw/virtio-9p-local.c: In function 'local_utimensat':
>> hw/virtio-9p-local.c:479: warning: implicit dec
On Fri, Nov 12, 2010 at 06:54:01PM +0800, Sheng Yang wrote:
> On Friday 12 November 2010 18:47:29 Michael S. Tsirkin wrote:
> > On Fri, Nov 12, 2010 at 06:13:48PM +0800, Sheng Yang wrote:
> > > On Friday 12 November 2010 17:53:13 Michael S. Tsirkin wrote:
> > > > On Thu, Nov 11, 2010 at 03:46:59PM
On Friday 12 November 2010 18:47:29 Michael S. Tsirkin wrote:
> On Fri, Nov 12, 2010 at 06:13:48PM +0800, Sheng Yang wrote:
> > On Friday 12 November 2010 17:53:13 Michael S. Tsirkin wrote:
> > > On Thu, Nov 11, 2010 at 03:46:59PM +0800, Sheng Yang wrote:
> > > > This patch enable per-vector mask f
On Fri, Nov 12, 2010 at 06:13:48PM +0800, Sheng Yang wrote:
> On Friday 12 November 2010 17:53:13 Michael S. Tsirkin wrote:
> > On Thu, Nov 11, 2010 at 03:46:59PM +0800, Sheng Yang wrote:
> > > This patch enable per-vector mask for assigned devices using MSI-X.
> > >
> > > This patch provided two
On 11/12/2010 06:33 PM, Xiao Guangrong wrote:
> From: Lai Jiangshan
>
> Rename it to fix the sense better
>
CCed to Lai Jiangshan
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Some operation of these functions is very similar, so introduce a
common function to cleanup them
Signed-off-by: Xiao Guangrong
---
arch/x86/kvm/mmu.c |3 -
arch/x86/kvm/paging_tmpl.h | 191 ---
2 files changed, 107 insertions(+), 87 deletions
We can past the page fault to guest directly if gpte's reserved
is set
Signed-off-by: Xiao Guangrong
---
arch/x86/kvm/paging_tmpl.h | 10 ++
1 files changed, 6 insertions(+), 4 deletions(-)
diff --git a/arch/x86/kvm/paging_tmpl.h b/arch/x86/kvm/paging_tmpl.h
index 291342d..952357a 100
From: Lai Jiangshan
Rename it to fix the sense better
Signed-off-by: Lai Jiangshan
Signed-off-by: Xiao Guangrong
---
arch/x86/kvm/mmu.c |8
arch/x86/kvm/paging_tmpl.h | 10 +-
2 files changed, 9 insertions(+), 9 deletions(-)
diff --git a/arch/x86/kvm/mmu.c b/a
We just need flush tlb if overwrite a writable spte with a read-only one
Signed-off-by: Xiao Guangrong
---
arch/x86/kvm/mmu.c | 19 +--
1 files changed, 9 insertions(+), 10 deletions(-)
diff --git a/arch/x86/kvm/mmu.c b/arch/x86/kvm/mmu.c
index 4b6d54c..1a93ab4 100644
--- a/ar
On Friday 12 November 2010 17:53:13 Michael S. Tsirkin wrote:
> On Thu, Nov 11, 2010 at 03:46:59PM +0800, Sheng Yang wrote:
> > This patch enable per-vector mask for assigned devices using MSI-X.
> >
> > This patch provided two new APIs: one is for guest to specific device's
> > MSI-X table addres
On Thu, Nov 11, 2010 at 03:46:59PM +0800, Sheng Yang wrote:
> This patch enable per-vector mask for assigned devices using MSI-X.
>
> This patch provided two new APIs: one is for guest to specific device's MSI-X
> table address in MMIO, the other is for userspace to get information about
> mask
>
On Fri, Nov 12, 2010 at 09:18:48AM +, Stefan Hajnoczi wrote:
> On Thu, Nov 11, 2010 at 3:53 PM, Michael S. Tsirkin wrote:
> > On Thu, Nov 11, 2010 at 01:47:21PM +, Stefan Hajnoczi wrote:
> >> Care must be taken not to interfere with vhost-net, which already uses
> >> ioeventfd host notifie
On Thu, Nov 11, 2010 at 07:56:13PM -0700, Alex Williamson wrote:
> Now that common PCI code doesn't have a hangup on capabilities
> being contiguous,
Hmm, this comment confused me : there's no requirement of
contigious allocations in current code in pci.c, is there?
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On Thu, Nov 11, 2010 at 4:45 PM, Christoph Hellwig wrote:
> On Thu, Nov 11, 2010 at 01:47:21PM +, Stefan Hajnoczi wrote:
>> Some virtio devices are known to have guest drivers which expect a notify to
>> be
>> processed synchronously and spin waiting for completion. Only enable
>> ioeventfd
On Thu, Nov 11, 2010 at 3:53 PM, Michael S. Tsirkin wrote:
> On Thu, Nov 11, 2010 at 01:47:21PM +, Stefan Hajnoczi wrote:
>> Care must be taken not to interfere with vhost-net, which already uses
>> ioeventfd host notifiers. The following list shows the behavior implemented
>> in
>> this pat
On Thu, Nov 11, 2010 at 11:30:07PM -0700, Alex Williamson wrote:
> On Fri, 2010-11-12 at 07:36 +0200, Michael S. Tsirkin wrote:
> > On Thu, Nov 11, 2010 at 07:56:46PM -0700, Alex Williamson wrote:
> > > Some drivers depend on finding capabilities like power management,
> > > PCI express/X, vital pr
On Thu, Nov 11, 2010 at 11:07:15PM -0700, Alex Williamson wrote:
> On Fri, 2010-11-12 at 07:40 +0200, Michael S. Tsirkin wrote:
> > On Thu, Nov 11, 2010 at 07:55:43PM -0700, Alex Williamson wrote:
> > > Capabilities are allocated in bytes, so we can track both whether
> > > a byte is used and by wh
On Thu, Nov 11, 2010 at 11:03:19PM -0700, Alex Williamson wrote:
> On Fri, 2010-11-12 at 07:22 +0200, Michael S. Tsirkin wrote:
> > On Thu, Nov 11, 2010 at 07:55:01PM -0700, Alex Williamson wrote:
> > > Make use of wmask, just like the rest of config space.
> > >
> > > Signed-off-by: Alex Williams
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