On Mon, 2011-08-22 at 17:52 -0700, aafabbri wrote:
> I'm not following you.
>
> You have to enforce group/iommu domain assignment whether you have the
> existing uiommu API, or if you change it to your proposed
> ioctl(inherit_iommu) API.
>
> The only change needed to VFIO here should be to make
Hello Derek,
On Tuesday 23 August 2011 06:30:13 Derek wrote:
> I found 'virsh edit' is the recommended way to make changes to a VM
> configuration, the XML file is not referenced at boot, it is only saved to
> with 'virsh dumpxml'. 'virsh edit' will update both areas - hypervisor and
> XML file.
I found 'virsh edit' is the recommended way to make changes to a VM
configuration, the XML file is not referenced at boot, it is only saved to with
'virsh dumpxml'. 'virsh edit' will update both areas - hypervisor and XML file.
Unfortunately the changes I make for smbios and sysinfo (as below)
On Mon, 22 Aug 2011 11:36:13 +0300, "Michael S. Tsirkin"
wrote:
> Yes. Or maybe 'WHEN' - since if MSI-X is disabled again, it moves back.
> Let's update the spec to make it clearer?
I left the language as is, but added a footnote at the end of the
sentence:
If MSI-X is enabled for the device, t
On Mon, Aug 22, 2011 at 09:45:48AM -0600, Alex Williamson wrote:
> On Mon, 2011-08-22 at 15:55 +1000, David Gibson wrote:
> > On Sat, Aug 20, 2011 at 09:51:39AM -0700, Alex Williamson wrote:
> > > We had an extremely productive VFIO BoF on Monday. Here's my attempt to
> > > capture the plan that I
On 08/23/2011 06:28 AM, Marcelo Tosatti wrote:
>> +
>> +if (rmap_can_add(vcpu))
>> +break;
>
> if (!rmap_can_add(vcpu))
> break;
>
> ?
>
Oh, oops, thanks for you point it out. Will fix it.
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To unsubscribe from this list: send the line "
On Tue, Aug 16, 2011 at 02:44:42PM +0800, Xiao Guangrong wrote:
> Fast prefetch spte for the unsync shadow page on invlpg path
>
> Signed-off-by: Xiao Guangrong
> ---
> arch/x86/include/asm/kvm_host.h |4 +---
> arch/x86/kvm/mmu.c | 38 +++---
>
On 8/22/11 2:49 PM, "Benjamin Herrenschmidt"
wrote:
>
>>> I wouldn't use uiommu for that.
>>
>> Any particular reason besides saving a file descriptor?
>>
>> We use it today, and it seems like a cleaner API than what you propose
>> changing it to.
>
> Well for one, we are back to square on
Thanks everyone for the useful replies.
I am using libvirt, one thing i'm observing after adding the following sysinfo
to the VM.xml file is that in the qemu log file for the VM it is not being
passed to the command when booting.
hvm
xxx xxx
xxx
> > I wouldn't use uiommu for that.
>
> Any particular reason besides saving a file descriptor?
>
> We use it today, and it seems like a cleaner API than what you propose
> changing it to.
Well for one, we are back to square one vs. grouping constraints.
.../...
> If we in singleton-group la
On 8/22/11 1:49 PM, "Benjamin Herrenschmidt"
wrote:
> On Mon, 2011-08-22 at 13:29 -0700, aafabbri wrote:
>
>>> Each device fd would then support a
>>> similar set of ioctls and mapping (mmio/pio/config) interface as current
>>> vfio, except for the obvious domain and dma ioctls superseded by
> I am in favour of /dev/vfio/$GROUP. If multiple devices should be
> assigned to a guest, there can also be an ioctl to bind a group to an
> address-space of another group (certainly needs some care to not allow
> that both groups belong to different processes).
>
> Btw, a problem we havn't talk
On Mon, 2011-08-22 at 09:45 -0600, Alex Williamson wrote:
> Yes, that's the idea. An open question I have towards the configuration
> side is whether we might add iommu driver specific options to the
> groups. For instance on x86 where we typically have B:D.F granularity,
> should we have an opt
On Mon, 2011-08-22 at 09:30 +0300, Avi Kivity wrote:
> On 08/20/2011 07:51 PM, Alex Williamson wrote:
> > We need to address both the description and enforcement of device
> > groups. Groups are formed any time the iommu does not have resolution
> > between a set of devices. On x86, this typicall
On Mon, 2011-08-22 at 13:29 -0700, aafabbri wrote:
> > Each device fd would then support a
> > similar set of ioctls and mapping (mmio/pio/config) interface as current
> > vfio, except for the obvious domain and dma ioctls superseded by the
> > group fd.
> >
> > Another valid model might be that
On Tue, Aug 23, 2011 at 04:21:05AM +0800, Xiao Guangrong wrote:
> On 08/23/2011 03:59 AM, Marcelo Tosatti wrote:
>
> >> + if (!vcpu->arch.mmu.direct_map && !mmu_is_nested(vcpu))
> >> + gpa = kvm_mmu_gva_to_gpa_write(vcpu, cr2, NULL);
> >
> > Why write?
> >
>
> Since the fault is caus
On 8/20/11 9:51 AM, "Alex Williamson" wrote:
> We had an extremely productive VFIO BoF on Monday. Here's my attempt to
> capture the plan that I think we agreed to:
>
> We need to address both the description and enforcement of device
> groups. Groups are formed any time the iommu does not
On 08/23/2011 03:59 AM, Marcelo Tosatti wrote:
>> +if (!vcpu->arch.mmu.direct_map && !mmu_is_nested(vcpu))
>> +gpa = kvm_mmu_gva_to_gpa_write(vcpu, cr2, NULL);
>
> Why write?
>
Since the fault is caused by page table written, and the 'gpa' can
be written after instruction is re
* Andrew Cathrow [2011-08-22 06:55]:
>
>
> - Original Message -
> > From: "Derek"
> > To: kvm@vger.kernel.org
> > Sent: Sunday, August 21, 2011 11:52:19 PM
> > Subject: DMI BIOS String
> > Hi Folks,
> >
> > I could not track down any solid info on modifying the DMI BIOS
> > string.
>
On Tue, Aug 16, 2011 at 02:42:07PM +0800, Xiao Guangrong wrote:
> If the emulation is caused by #PF and it is non-page_table writing
> instruction,
> it means the VM-EXIT is caused by shadow page protected, we can zap the shadow
> page and retry this instruction directly
>
> The idea is from Avi
On Mon, 2011-08-22 at 19:25 +0200, Joerg Roedel wrote:
> On Sat, Aug 20, 2011 at 12:51:39PM -0400, Alex Williamson wrote:
> > We had an extremely productive VFIO BoF on Monday. Here's my attempt to
> > capture the plan that I think we agreed to:
> >
> > We need to address both the description and
On 08/22/2011 11:54 AM, Avi Kivity wrote:
[v2: fix git url...]
Anthony, please pull from:
git://git.kernel.org/pub/scm/virt/kvm/qemu-kvm.git memory/core
Pulled. Thanks.
Regards,
Anthony Liguori
to receive a memory API fix. The fix is not required for any of the
already merged patches, b
On 2011-08-14 06:04, Avi Kivity wrote:
> In certain circumstances, posix-aio-compat can incur a lot of latency:
> - threads are created by vcpu threads, so if vcpu affinity is set,
>aio threads inherit vcpu affinity. This can cause many aio threads
>to compete for one cpu.
> - we can cre
On Sat, Aug 20, 2011 at 12:51:39PM -0400, Alex Williamson wrote:
> We had an extremely productive VFIO BoF on Monday. Here's my attempt to
> capture the plan that I think we agreed to:
>
> We need to address both the description and enforcement of device
> groups. Groups are formed any time the
Am 14.08.2011 06:04, schrieb Avi Kivity:
> In certain circumstances, posix-aio-compat can incur a lot of latency:
> - threads are created by vcpu threads, so if vcpu affinity is set,
>aio threads inherit vcpu affinity. This can cause many aio threads
>to compete for one cpu.
> - we can c
Hi,
This is a summary from a discussion Avi and I had earlier about merging
invasive changes (like the memory API) into the tree in a more fluid
fashion. Here's my suggestions:
- Invasive changes over a long period of time (multi batches) should be
done via git pull. patch (and therefore g
[v2: fix git url...]
Anthony, please pull from:
git://git.kernel.org/pub/scm/virt/kvm/qemu-kvm.git memory/core
to receive a memory API fix. The fix is not required for any of the
already merged patches, but is needed by other patches in my queue.
I am sending core patches separately than
Anthony, please pull from:
ssh://master.kernel.org/pub/scm/virt/kvm/qemu-kvm.git memory/core
to receive a memory API fix. The fix is not required for any of the
already merged patches, but is needed by other patches in my queue.
I am sending core patches separately than the conversions to
On 08/15/2011 09:17 AM, Avi Kivity wrote:
This patchset converts a few more devices (and boards) to the memory API.
Nothing is really interesting except for the last patch, which brings
proper PAM support (and better SMRAM emulation). It should also fix the
regressions that were reported in some
On 08/22/2011 10:42 AM, Avi Kivity wrote:
Anthony, please pull from:
git://git.kernel.org/pub/scm/virt/kvm/qemu-kvm.git
refs/tags/memory-region-fixes-1
Also, please use the tag '[PULL]' as that's what I (and presumably
others) currently filter for.
Regards,
Anthony Liguori
to receive a
On 08/22/2011 10:42 AM, Avi Kivity wrote:
Anthony, please pull from:
git://git.kernel.org/pub/scm/virt/kvm/qemu-kvm.git
refs/tags/memory-region-fixes-1
I don't fetch tags from subtrees at the moment. Could you make this a
branch instead?
Regards,
Anthony Liguori
to receive a memory API
On Mon, 2011-08-22 at 15:55 +1000, David Gibson wrote:
> On Sat, Aug 20, 2011 at 09:51:39AM -0700, Alex Williamson wrote:
> > We had an extremely productive VFIO BoF on Monday. Here's my attempt to
> > capture the plan that I think we agreed to:
> >
> > We need to address both the description and
Anthony, please pull from:
git://git.kernel.org/pub/scm/virt/kvm/qemu-kvm.git
refs/tags/memory-region-fixes-1
to receive a memory API fix. The fix is not required for any of the
already merged patches, but is needed by other patches in my queue.
I am sending core patches separately than
On 08/11/2011 02:40 AM, Avi Kivity wrote:
The memory API automatically cracks wide memory accesses into narrower
(usually byte) accesses when needed. Unfortunately this wasn't implemented
for ioports, leading to an lsi53c895a failure.
This series implements cracking for ioports as well.
Note t
On Mon, Aug 22, 2011 at 09:17:41AM -0400, Avi Kivity wrote:
> On 08/22/2011 04:15 PM, Roedel, Joerg wrote:
> > On Mon, Aug 22, 2011 at 09:06:07AM -0400, Avi Kivity wrote:
> > > On 08/22/2011 03:55 PM, Roedel, Joerg wrote:
> >
> > > > Well, I don't think its really meaningless, but we need some w
On 08/22/2011 05:32 PM, Marcelo Tosatti wrote:
On Tue, Aug 16, 2011 at 02:41:27PM +0800, Xiao Guangrong wrote:
> The idea is from Avi:
> | tag instructions that are typically used to modify the page tables, and
> | drop shadow if any other instruction is used.
> | The list would include, I'd
On Tue, Aug 16, 2011 at 02:41:27PM +0800, Xiao Guangrong wrote:
> The idea is from Avi:
> | tag instructions that are typically used to modify the page tables, and
> | drop shadow if any other instruction is used.
> | The list would include, I'd guess, and, or, bts, btc, mov, xchg, cmpxchg,
> | and
Hello Avi,
Thnx, fixed: OK, maybe some credits :-)
Acked-by: Gerhard Wiesinger
This pattern is still present at (maybe some further problems!!!) and I
guess it has to be fixed, too:
grep -ir 'ops, s, "' .
./hw/rtl8139.c:memory_region_init_io(&s->bar_io, &rtl8139_io_ops, s,
"rtl8139", 0
Another casualty of the memory API conversion.
Signed-off-by: Avi Kivity
---
hw/pcnet-pci.c |4 ++--
1 files changed, 2 insertions(+), 2 deletions(-)
diff --git a/hw/pcnet-pci.c b/hw/pcnet-pci.c
index 13d9380..51e1320 100644
--- a/hw/pcnet-pci.c
+++ b/hw/pcnet-pci.c
@@ -290,10 +290,10 @@ st
This allows implementations to reuse code.
Signed-off-by: Avi Kivity
---
arch/x86/include/asm/kvm_emulate.h |3 ++-
arch/x86/kvm/x86.c |4 ++--
arch/x86/kvm/x86.h |2 +-
3 files changed, 5 insertions(+), 4 deletions(-)
diff --git a/arch/x86/include/as
The x86 emulator is directly exposed to guest code; therefore it is part
of the directly exposed attack surface. To reduce the risk of
vulnerabilities, this patch adds a fuzz test that runs random instructions
through the emulator. A vulnerability will usually result in an oops.
One way to run t
Signed-off-by: Avi Kivity
---
arch/x86/kvm/emulate.c |2 ++
1 files changed, 2 insertions(+), 0 deletions(-)
diff --git a/arch/x86/kvm/emulate.c b/arch/x86/kvm/emulate.c
index 0453c07..aea313b 100644
--- a/arch/x86/kvm/emulate.c
+++ b/arch/x86/kvm/emulate.c
@@ -3685,6 +3685,7 @@ done:
As it is exposed directly to guest code, the x86 emulator is an interesting
target for exploiters: a vulnerability may lead to compromise of the entire
host.
In an attempt to catch vulnerabilities before they make it into production
code, this patchset adds a fuzz tester for the emulator. Instruc
On 08/22/2011 04:15 PM, Roedel, Joerg wrote:
On Mon, Aug 22, 2011 at 09:06:07AM -0400, Avi Kivity wrote:
> On 08/22/2011 03:55 PM, Roedel, Joerg wrote:
> > Well, I don't think its really meaningless, but we need some way to
> > communicate the information about device groups to userspace.
>
On Mon, Aug 22, 2011 at 09:06:07AM -0400, Avi Kivity wrote:
> On 08/22/2011 03:55 PM, Roedel, Joerg wrote:
> > Well, I don't think its really meaningless, but we need some way to
> > communicate the information about device groups to userspace.
>
> I mean the contents of the group descriptor. Th
On 08/22/2011 03:55 PM, Roedel, Joerg wrote:
On Mon, Aug 22, 2011 at 08:42:35AM -0400, Avi Kivity wrote:
> On 08/22/2011 03:36 PM, Roedel, Joerg wrote:
> > On the AMD IOMMU side this information is stored in the IVRS ACPI table.
> > Not sure about the VT-d side, though.
>
> I see. There is
Signed-off-by: Sasha Levin
---
tools/kvm/virtio/blk.c | 263
1 files changed, 88 insertions(+), 175 deletions(-)
diff --git a/tools/kvm/virtio/blk.c b/tools/kvm/virtio/blk.c
index 2ccf585..2e047d7 100644
--- a/tools/kvm/virtio/blk.c
+++ b/tools/k
Signed-off-by: Sasha Levin
---
tools/kvm/builtin-run.c |8 +-
tools/kvm/include/kvm/virtio-9p.h | 16 ++--
tools/kvm/virtio/9p.c | 247 +++--
3 files changed, 111 insertions(+), 160 deletions(-)
diff --git a/tools/kvm/builtin-run.c b/t
Signed-off-by: Sasha Levin
---
tools/kvm/virtio/balloon.c | 267
1 files changed, 97 insertions(+), 170 deletions(-)
diff --git a/tools/kvm/virtio/balloon.c b/tools/kvm/virtio/balloon.c
index 7f3fe65..6b93121 100644
--- a/tools/kvm/virtio/balloon.c
+
Signed-off-by: Sasha Levin
---
tools/kvm/virtio/net.c | 344 ++--
1 files changed, 100 insertions(+), 244 deletions(-)
diff --git a/tools/kvm/virtio/net.c b/tools/kvm/virtio/net.c
index aa4536b..6247642 100644
--- a/tools/kvm/virtio/net.c
+++ b/tools/
Signed-off-by: Sasha Levin
---
tools/kvm/virtio/rng.c | 254 ++--
1 files changed, 74 insertions(+), 180 deletions(-)
diff --git a/tools/kvm/virtio/rng.c b/tools/kvm/virtio/rng.c
index 93258f6..5bea56c 100644
--- a/tools/kvm/virtio/rng.c
+++ b/tools/k
This patch builds a virtio-pci layer which can be used by virtio
devices as a layer to interact with virtio-pci. The purpose of the
patch is to seperate the common virtio-pci layer from being replicated
in all virtio devices.
The new layer provides a callback interface to receive information about
On Mon, Aug 22, 2011 at 08:42:35AM -0400, Avi Kivity wrote:
> On 08/22/2011 03:36 PM, Roedel, Joerg wrote:
> > On the AMD IOMMU side this information is stored in the IVRS ACPI table.
> > Not sure about the VT-d side, though.
>
> I see. There is no sysfs node representing it?
No. It also doesn't
On 08/22/2011 03:36 PM, Roedel, Joerg wrote:
On Mon, Aug 22, 2011 at 06:51:35AM -0400, Avi Kivity wrote:
> On 08/22/2011 01:46 PM, Joerg Roedel wrote:
> > That does not work. The bridge in question may not even be visible as a
> > PCI device, so you can't link to it. This is the case on a fe
On Mon, Aug 22, 2011 at 06:51:35AM -0400, Avi Kivity wrote:
> On 08/22/2011 01:46 PM, Joerg Roedel wrote:
> > That does not work. The bridge in question may not even be visible as a
> > PCI device, so you can't link to it. This is the case on a few PCIe
> > cards which only have a PCIx chip and a P
On Mon, Aug 22, 2011 at 10:37 AM, Paul wrote:
> Hi,
> I found the clock of guest OS has been changed. For example, today was Aug
> 22, but I found the time of guest was Mar 22 from the VNC desktop. The clock
> source of guest was kvm-clock. Was it related to KVM clock bug? How about it
> if I chan
- Original Message -
> From: "Derek"
> To: kvm@vger.kernel.org
> Sent: Sunday, August 21, 2011 11:52:19 PM
> Subject: DMI BIOS String
> Hi Folks,
>
> I could not track down any solid info on modifying the DMI BIOS
> string.
qemu-kvm -help | grep bios
-smbios file=binary
-smbios type=0
On 08/22/2011 01:46 PM, Joerg Roedel wrote:
> $ readlink /sys/devices/pci:00/:00:19.0/iommu_group
> ../../../path/to/device/which/represents/the/resource/constraint
>
> (the pci-to-pci bridge on x86, or whatever node represents partitionable
> endpoints on power)
That does not work.
On Mon, Aug 22, 2011 at 02:30:26AM -0400, Avi Kivity wrote:
> On 08/20/2011 07:51 PM, Alex Williamson wrote:
> > We need to address both the description and enforcement of device
> > groups. Groups are formed any time the iommu does not have resolution
> > between a set of devices. On x86, this t
On 08/11/2011 10:01 PM, Gerhard Wiesinger wrote:
On Thu, 11 Aug 2011, Avi Kivity wrote:
Or maybe it's just -O2 screwing up debug information. Please change
./configure to set -O1 and redo.
Please print *r.memory as well.
./configure --target-list=x86_64-softmmu,i386-softmmu --enable-debug
R
On 08/22/11 10:26, Stefan Hajnoczi wrote:
On Mon, Jul 4, 2011 at 11:00 PM, Raghavendra D Prabhu
wrote:
The gnutls_*_set_priority family of functions has been marked deprecated
in 2.12.x. These functions have been superceded by
gnutls_priority_set_direct().
Signed-off-by: Raghavendra D Prabhu
Hi,
I found the clock of guest OS has been changed. For example, today was Aug
22, but I found the time of guest was Mar 22 from the VNC desktop. The clock
source of guest was kvm-clock. Was it related to KVM clock bug? How about it
if I changed the clock to tsc?
Thanks,
Paul
On Fri, Aug 19, 201
On Mon, Aug 22, 2011 at 03:52:19PM +1200, Derek wrote:
> Hi Folks,
>
> I could not track down any solid info on modifying the DMI BIOS string.
>
> For example, in VirtualBox you can use 'vboxmanage setsextradata' to
> set the BIOS product and vendor string per VM.
>
> Any ideas if this is possib
On 08/17/2011 07:19 AM, Liu, Jinsong wrote:
From a9670ddff84080c56183e2d678189e100f891174 Mon Sep 17 00:00:00 2001
From: Liu, Jinsong
Date: Wed, 17 Aug 2011 11:36:28 +0800
Subject: [PATCH] KVM: emulate lapic tsc deadline timer for hvm
kvm doesn't have hvm.
This patch emulate lapic tsc deadli
On Mon, Aug 22, 2011 at 09:54:50AM +0930, Rusty Russell wrote:
> On Fri, 19 Aug 2011 18:23:35 +0300, "Michael S. Tsirkin"
> wrote:
> > On Sat, Aug 13, 2011 at 11:51:01AM +0300, Sasha Levin wrote:
> > > The MAC of a virtio-net device is located at the first field of the device
> > > specific heade
On Mon, Jul 4, 2011 at 11:00 PM, Raghavendra D Prabhu
wrote:
> The gnutls_*_set_priority family of functions has been marked deprecated
> in 2.12.x. These functions have been superceded by
> gnutls_priority_set_direct().
>
> Signed-off-by: Raghavendra D Prabhu
> ---
> ui/vnc-tls.c | 20 +--
Hugh Dickins writes:
> KSM chooses to show the numbers pages_shared and pages_sharing as
> exclusive counts: pages_sharing indicates the saving being made. So it
> would be perfectly reasonable to add those two numbers together to get
> the "total" number of pages sharing, the number you expecte
On 08/15/2011 05:17 PM, Avi Kivity wrote:
This patchset converts a few more devices (and boards) to the memory API.
Nothing is really interesting except for the last patch, which brings
proper PAM support (and better SMRAM emulation). It should also fix the
regressions that were reported in some
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