On Tue, 3 Jul 2012 15:19:37 +0200, Paolo Bonzini wrote:
> This patch adds support for the new VIRTIO_BLK_F_CONFIG_WCE feature,
> which exposes the cache mode in the configuration space and lets the
> driver modify it. The cache mode is exposed via sysfs.
>
> Even if the host does not support th
On Tue, 3 Jul 2012 15:19:37 +0200, Paolo Bonzini wrote:
> This patch adds support for the new VIRTIO_BLK_F_CONFIG_WCE feature,
> which exposes the cache mode in the configuration space and lets the
> driver modify it. The cache mode is exposed via sysfs.
>
> Even if the host does not support th
On Tue, 3 Jul 2012 15:16:51 +0200, Paolo Bonzini wrote:
> Current QEMU and Linux drivers can export queue parameters via the
> virtio-blk configuration space. Document this, since the next patch
> will have to add another configuration field after these.
>
> Signed-off-by: Paolo Bonzini
Appli
I'm sorry if my understanding is incorrect. Here are some topics on
pci passthrough to guests.
When pci passthrough is used with kvm, guest's all memory are pinned by extra
reference count of get_page(). That pinned pages are never be reclaimable and
movable by migration and cannot be merged by K
On 07/04/2012 12:24 PM, Nicholas A. Bellinger wrote:
From: Stefan Hajnoczi
In order for other vhost devices to use the VHOST_FEATURES bits the
vhost-net specific bits need to be moved to their own VHOST_NET_FEATURES
constant.
Signed-off-by: Stefan Hajnoczi
Cc: Zhi Yong Wu
Cc: Michael S. Tsir
From: Nicholas Bellinger
This is currently required for connecting to tcm_vhost in order to prevent
the client LUN scan from detecting the same tcm_vhost WWPN on multiple target
IDs.
Cc: Paolo Bonzini
Cc: Stefan Hajnoczi
Cc: Zhi Yong Wu
Cc: Christoph Hellwig
Cc: Hannes Reinecke
Signed-off-b
From: Nicholas Bellinger
This patch changes virtio-scsi to use a new virtio_driver->scan() callback
so that scsi_scan_host() can be properly invoked once virtio_dev_probe() has
set add_status(dev, VIRTIO_CONFIG_S_DRIVER_OK) to signal active virtio-ring
operation, instead of from within virtscsi_p
From: Nicholas Bellinger
This patch adds the initial code for tcm_vhost, a Vhost level TCM
fabric driver for virtio SCSI initiators into KVM guest.
This code is currently up and running on v3.5-rc2 host+guest along with
the virtio-scsi vdev->scan() patch to allow a proper scsi_scan_host() to
occ
From: Stefan Hajnoczi
The vhost work queue allows processing to be done in vhost worker thread
context, which uses the owner process mm. Access to the vring and guest
memory is typically only possible from vhost worker context so it is
useful to allow work to be queued directly by users.
Curren
From: Nicholas Bellinger
This patch adds the initial vhost_scsi_ioctl() callers for
VHOST_SCSI_SET_ENDPOINT
and VHOST_SCSI_CLEAR_ENDPOINT respectively, and also adds struct
vhost_vring_target
that is used by tcm_vhost code when locating target ports during qemu setup.
Signed-off-by: Stefan Haj
From: Stefan Hajnoczi
In order for other vhost devices to use the VHOST_FEATURES bits the
vhost-net specific bits need to be moved to their own VHOST_NET_FEATURES
constant.
Signed-off-by: Stefan Hajnoczi
Cc: Zhi Yong Wu
Cc: Michael S. Tsirkin
Cc: Paolo Bonzini
Signed-off-by: Nicholas A. Bell
From: Nicholas Bellinger
Hi folks,
This series contains patches required to update tcm_vhost <-> virtio-scsi
connected hosts <-> guests to run on v3.5-rc2 mainline code. This series is
available on top of target-pending/auto-next here:
git://git.kernel.org/pub/scm/linux/kernel/git/nab/targe
On Mon, 2 Jul 2012 10:33:08 +0300, "Michael S. Tsirkin" wrote:
> In virtio balloon virtqueue_get_buf might now run concurrently with
> virtqueue_kick. I audited both and this seems safe in practice but
> this is not guaranteed by the API.
> Additionally, a spurious interrupt might in theory make
On Tue, 03 Jul 2012 08:39:39 +0800, Asias He wrote:
> On 07/02/2012 02:41 PM, Rusty Russell wrote:
> > Sure, our guest merging might save us 100x as many exits as no merging.
> > But since we're not doing many requests, does it matter?
>
> We can still have many requests with slow devices. The nu
On Mon, Jul 02, 2012 at 11:08:14AM +, Liu, Jinsong wrote:
> Eduardo, Jan, Andreas
>
> As we sync 3 months ago, I wait until qemu1.1 done, then re-write patch based
> on qemu1.1.
> Now it's time to re-write my patch based on qemu1.1.
>
> Attached is a RFC patch for exposing tsc deadline timer
On Tue, Jul 03, 2012 at 02:32:14PM +0800, Xiao Guangrong wrote:
> It will trigger a WARN_ON if the page has been freed but it is still
> used in mmu, it can help us to detect mm bug early
>
> Signed-off-by: Xiao Guangrong
> ---
> arch/x86/kvm/mmu.c |8
> 1 files changed, 8 insertion
On Sun, Jul 01, 2012 at 06:08:30PM +0300, Michael S. Tsirkin wrote:
> Support the new PV EOI flag in kvm - it recently got merged
> into kvm.git. Set by default with -cpu kvm.
> Set for -cpu qemu by adding +kvm_pv_eoi.
> Clear by adding -kvm_pv_eoi to -cpu option.
>
> Signed-off-by: Michael S. Tsi
On Tue, Jul 03, 2012 at 04:59:54AM -0400, Christoffer Dall wrote:
> Handle KVM_IRQ_LINE and KVM_IRQ_LINE_STATUS in the generic
> kvm_vm_ioctl() function and call into kvm_vm_ioctl_irq_line().
>
> Signed-off-by: Christoffer Dall
> ---
> arch/ia64/kvm/kvm-ia64.c | 33 ++--
On Tue, Jul 03, 2012 at 04:29:27PM +0300, Avi Kivity wrote:
> On 07/03/2012 11:59 AM, Christoffer Dall wrote:
> > The following series implements KVM support for ARM processors,
> > specifically on the Cortex A-15 platform. Work is done in
> > collaboration between Columbia University, Virtual Ope
On 03.07.2012, at 17:48, Stuart Yoder wrote:
> From: Stuart Yoder
>
> v12 has a couple of updates to address feedback
> -use new CURRENT_THREAD_INFO macro in epapr_hcalls.S
> -use EV_HCALL_TOKEN to create epapr hcall token
>
> A prerequisite to applying this patch is the patch:
> PPC: us
> -Original Message-
> From: Alexander Graf [mailto:ag...@suse.de]
> Sent: Tuesday, July 03, 2012 2:34 PM
> To: Yoder Stuart-B08248
> Cc: kvm-...@vger.kernel.org; kvm@vger.kernel.org
> Subject: Re: [PATCH v12 4/8] KVM: PPC: Add support for ePAPR idle hcall in
> host kernel
>
>
> On 03.
On 03.07.2012, at 17:48, Stuart Yoder wrote:
> From: Liu Yu-B13201
>
> And add a new flag definition in kvm_ppc_pvinfo to indicate
> whether the host supports the EV_IDLE hcall.
>
> Signed-off-by: Liu Yu
> [stuart.yo...@freescale.com: cleanup,fixes for conditions allowing idle]
> Signed-off-b
This new ioctl enables an eventfd to be triggered when an EOI is
written for a specified irqchip pin. By default this is a simple
notification, but we can also tie the eoifd to a level irqfd, which
enables the irqchip pin to be automatically de-asserted on EOI.
This mode is particularly useful for
In order to inject a level interrupt from an external source using an
irqfd, we need to allocate a new irq_source_id. This allows us to
assert and (later) de-assert an interrupt line independently from
users of KVM_IRQ_LINE and avoid lost interrupts.
We also add what may appear like a bit of exce
Here's the latest iteration of adding an interface to assert and
de-assert level interrupts from external drivers like vfio. These
apply on top of the previous argument cleanup, documentation, and
sanitization patches for irqfd. It would be great to get this queued
in next for linux 3.6.
I belie
On Mon, Jul 2, 2012 at 6:06 PM, Eduardo Habkost wrote:
> Cc: Blue Swirl
> Signed-off-by: Eduardo Habkost
Acked-by: Blue Swirl
> ---
> exec.c | 14 +++---
> 1 file changed, 7 insertions(+), 7 deletions(-)
>
> diff --git a/exec.c b/exec.c
> index c8bfd27..d856325 100644
> --- a/exec.
On Mon, Jul 2, 2012 at 6:06 PM, Eduardo Habkost wrote:
> Cc: Blue Swirl
> Signed-off-by: Eduardo Habkost
Acked-by: Blue Swirl
> ---
> exec.c |5 +++--
> 1 file changed, 3 insertions(+), 2 deletions(-)
>
> diff --git a/exec.c b/exec.c
> index 8244d54..c8bfd27 100644
> --- a/exec.c
> +++ b
On Mon, Jul 2, 2012 at 9:43 AM, Avi Kivity wrote:
> On 07/02/2012 12:30 PM, Jan Kiszka wrote:
>> On 2012-07-02 11:18, Michael S. Tsirkin wrote:
>>> I've been thinking hard about Jan's patches for device
>>> assignment. Basically while I thought it makes sense
>>> to make all devices: assignment an
On Sun, Jul 01, 2012 at 06:05:06PM +0300, Michael S. Tsirkin wrote:
> On UP i386, when APIC is disabled
> # CONFIG_X86_UP_APIC is not set
> # CONFIG_PCI_IOAPIC is not set
>
> code looking at apicdrivers never has any effect but it
> still gets compiled in. In particular, this causes
> build failur
On Wed, Jun 27, 2012 at 06:24:50PM +0300, Avi Kivity wrote:
> Introduce kvm_cpuid() to perform the leaf limit check and calculate
> register values, and let kvm_emulate_cpuid() just handle reading and
> writing the registers from/to the vcpu. This allows us to reuse
> kvm_cpuid() in a context wher
On Wed, Jun 27, 2012 at 12:35:22PM +0200, Peter Lieven wrote:
> Hi,
>
> we recently came across multiple VMs racing and stopping working. It
> seems to happen when the system is at 100% cpu.
> One way to reproduce this is:
> qemu-kvm-1.0.1 with vnc-thread enabled
>
> cmdline (or similar):
> /usr/
On Tue, Jul 03, 2012 at 10:17:46AM +0930, Rusty Russell wrote:
> On Mon, 2 Jul 2012 13:08:19 -0300, Rafael Aquini wrote:
> > As 'locking in balloon', may I assume the approach I took for the
> > compaction case
> > is OK and aligned to address these concerns of yours? If not, do not
> > hesitate
On 07/03/2012 04:49 PM, Peter Maydell wrote:
> On 3 July 2012 14:24, Avi Kivity wrote:
>> On 07/03/2012 04:14 PM, Peter Maydell wrote:
>>> You could just always wake the cpu when migrating: the
>>> architecture allows WFI to return early for any reason
>>> it likes including implementation conveni
From: Stuart Yoder
Signed-off-by: Stuart Yoder
---
v12: no changes
arch/powerpc/platforms/Kconfig |1 +
drivers/tty/Kconfig|1 +
drivers/virt/Kconfig |1 +
3 files changed, 3 insertions(+), 0 deletions(-)
diff --git a/arch/powerpc/platforms/Kconfig b/arch/pow
From: Stuart Yoder
Signed-off-by: Liu Yu
[stuart: factored this out from idle hcall support in host patch]
Signed-off-by: Stuart Yoder
---
v12: no changes
arch/powerpc/kvm/powerpc.c | 10 +-
1 files changed, 9 insertions(+), 1 deletions(-)
diff --git a/arch/powerpc/kvm/powerpc.c b/
From: Liu Yu-B13201
And add a new flag definition in kvm_ppc_pvinfo to indicate
whether the host supports the EV_IDLE hcall.
Signed-off-by: Liu Yu
[stuart.yo...@freescale.com: cleanup,fixes for conditions allowing idle]
Signed-off-by: Stuart Yoder
---
v12: use EV_HCALL_TOKEN macro
Documentat
From: Stuart Yoder
Signed-off-by: Stuart Yoder
---
v12: no changes
arch/powerpc/include/asm/kvm_para.h | 21 +++--
arch/powerpc/kernel/kvm.c |2 +-
arch/powerpc/kvm/powerpc.c | 10 +-
3 files changed, 17 insertions(+), 16 deletions(-)
diff --
From: Liu Yu-B13201
Signed-off-by: Liu Yu
[varun: 64-bit changes]
Signed-off-by: Varun Sethi
Signed-off-by: Stuart Yoder
---
v12: use new CURRENT_THREAD_INFO macro
arch/powerpc/include/asm/epapr_hcalls.h | 11 ++-
arch/powerpc/kernel/epapr_hcalls.S | 28 +
From: Liu Yu-B13201
Signed-off-by: Liu Yu
Signed-off-by: Stuart Yoder
---
v12: no changes
arch/powerpc/include/asm/epapr_hcalls.h | 22 +-
arch/powerpc/include/asm/fsl_hcalls.h | 36 +++---
2 files changed, 29 insertions(+), 29 deletions(-)
diff
From: Stuart Yoder
Signed-off-by: Stuart Yoder
---
v12: no changes
arch/powerpc/include/asm/epapr_hcalls.h |3 ++-
1 files changed, 2 insertions(+), 1 deletions(-)
diff --git a/arch/powerpc/include/asm/epapr_hcalls.h
b/arch/powerpc/include/asm/epapr_hcalls.h
index bf2c06c..c0c7adc 100644
From: Scott Wood
Signed-off-by: Scott Wood
Signed-off-by: Stuart Yoder
---
v12: no changes
arch/powerpc/sysdev/fsl_msi.c |9 +++--
arch/powerpc/sysdev/fsl_soc.c |2 ++
2 files changed, 9 insertions(+), 2 deletions(-)
diff --git a/arch/powerpc/sysdev/fsl_msi.c b/arch/powerpc/sysde
From: Stuart Yoder
v12 has a couple of updates to address feedback
-use new CURRENT_THREAD_INFO macro in epapr_hcalls.S
-use EV_HCALL_TOKEN to create epapr hcall token
A prerequisite to applying this patch is the patch:
PPC: use CURRENT_THREAD_INFO instead of open coded assembly
Liu Yu
> -Original Message-
> From: Wood Scott-B07421
> Sent: Monday, July 02, 2012 12:25 PM
> To: Alexander Graf
> Cc: Yoder Stuart-B08248; kvm-...@vger.kernel.org; kvm@vger.kernel.org; Tabi
> Timur-B04825
> Subject: Re: [PATCH v11 8/8] PPC: Don't use hardcoded opcode for ePAPR hcall
> invoca
On Wed, Jun 20, 2012 at 03:56:29PM +0800, Xiao Guangrong wrote:
> Changlog:
> - always atomicly update the spte if it can be updated out of mmu-lock
> - rename spte_can_be_writable() to spte_is_locklessly_modifiable()
> - cleanup and comment spte_write_protect()
>
> Performance result:
> (The benc
> -Original Message-
> From: kvm-ppc-ow...@vger.kernel.org [mailto:kvm-ppc-ow...@vger.kernel.org] On
> Behalf Of Alexander Graf
> Sent: Monday, July 02, 2012 7:18 AM
> To: Yoder Stuart-B08248
> Cc: kvm-...@vger.kernel.org; kvm@vger.kernel.org
> Subject: Re: [PATCH v11 4/8] KVM: PPC: Add
On Tue, Jul 03, 2012 at 12:13:19PM +0400, Michael Tokarev wrote:
> On 03.07.2012 03:32, Marcelo Tosatti wrote:
> >
> > qemu-kvm-1.1.0 is now available. This release is based on the upstream
> > qemu 1.1.0, plus kvm-specific enhancements. Please see the
> > original QEMU 1.1.0 release announcement
On 07/03/2012 05:22 PM, Ronen Hod wrote:
On 06/18/2012 02:14 PM, Dor Laor wrote:
On 06/18/2012 01:05 PM, Rusty Russell wrote:
On Mon, 18 Jun 2012 16:03:23 +0800, Asias He wrote:
On 06/18/2012 03:46 PM, Rusty Russell wrote:
On Mon, 18 Jun 2012 14:53:10 +0800, Asias He wrote:
This patch intr
On 06/18/2012 02:14 PM, Dor Laor wrote:
On 06/18/2012 01:05 PM, Rusty Russell wrote:
On Mon, 18 Jun 2012 16:03:23 +0800, Asias He wrote:
On 06/18/2012 03:46 PM, Rusty Russell wrote:
On Mon, 18 Jun 2012 14:53:10 +0800, Asias He wrote:
This patch introduces bio-based IO path for virtio-blk.
On 07/03/2012 09:31 PM, Paolo Bonzini wrote:
Il 02/07/2012 08:41, Rusty Russell ha scritto:
With the same workload in guest, the guest fires 200K requests to host
with merges enabled in guest (echo 0 > /sys/block/vdb/queue/nomerges),
while the guest fires 4K requests to host with merges disa
Il 03/07/2012 15:46, Kevin Wolf ha scritto:
>> > Introduce a new feature bit and configuration field that provide
>> > support for toggling the cache mode between writethrough and writeback.
>> >
>> > Also rename VIRTIO_BLK_F_WCACHE to VIRTIO_BLK_F_WCE for consistency with
>> > the spec.
> My spec
On 3 July 2012 14:29, Avi Kivity wrote:
> On 07/03/2012 11:59 AM, Christoffer Dall wrote:
>> Additionally a few major milestones are coming up shortly:
>> - Support Thumb MMIO emulation and test MMIO emulation code (under way)
>> - Merge Marc Zyngier's patch series for VGIC and timers (review in
Il 03/07/2012 15:49, Kevin Wolf ha scritto:
>> If the guest does not support flushes, we should run in writethrough mode.
>> > The setting is temporary until the next reset, so that for example the
>> > BIOS will run in writethrough mode while Linux will run with a writeback
>> > cache.
>> >
>> >
Am 03.07.2012 15:20, schrieb Paolo Bonzini:
> If the guest does not support flushes, we should run in writethrough mode.
> The setting is temporary until the next reset, so that for example the
> BIOS will run in writethrough mode while Linux will run with a writeback
> cache.
>
> VIRTIO_BLK_F_FLU
On 3 July 2012 14:24, Avi Kivity wrote:
> On 07/03/2012 04:14 PM, Peter Maydell wrote:
>> You could just always wake the cpu when migrating: the
>> architecture allows WFI to return early for any reason
>> it likes including implementation convenience.
>
> Seems reasonable.
>
> I imagine wfi works
Am 03.07.2012 15:20, schrieb Paolo Bonzini:
> Introduce a new feature bit and configuration field that provide
> support for toggling the cache mode between writethrough and writeback.
>
> Also rename VIRTIO_BLK_F_WCACHE to VIRTIO_BLK_F_WCE for consistency with
> the spec.
My spec (and my kernel
Il 02/07/2012 08:41, Rusty Russell ha scritto:
>> With the same workload in guest, the guest fires 200K requests to host
>> with merges enabled in guest (echo 0 > /sys/block/vdb/queue/nomerges),
>> while the guest fires 4K requests to host with merges disabled in
>> guest (echo 2 > /sys/bloc
On 07/03/2012 11:59 AM, Christoffer Dall wrote:
> The following series implements KVM support for ARM processors,
> specifically on the Cortex A-15 platform. Work is done in
> collaboration between Columbia University, Virtual Open Systems and
> ARM/Linaro.
>
> The patch series applies to kvm/nex
On Mon, Jul 02, 2012 at 09:34:46AM +0200, Jan Kiszka wrote:
> qemu-kvm-specific machine defaults were missing for pc-0.15 and pc-1.0.
>
> Signed-off-by: Jan Kiszka
> ---
> hw/pc_piix.c |2 ++
> 1 files changed, 2 insertions(+), 0 deletions(-)
Applied both stable patches, thanks.
--
To unsu
Il 15/06/2012 17:38, nicolas.oc...@free.fr ha scritto:
> Hi list,
>
>
> I am having troubles porting my os to qemu/kvm environment. It's
> about the RTC (real-time clock)
>
> There is a flag (UIP flag) which is supposed to show when RTC can be
> read or not.
>
> We wait 10ms for that flag to be
On 07/03/2012 04:15 PM, Peter Lieven wrote:
> On 03.07.2012 15:13, Avi Kivity wrote:
>> On 07/03/2012 04:01 PM, Peter Lieven wrote:
>>> Further output from my testing.
>>>
>>> Working:
>>> Linux 2.6.38 with included kvm module
>>> Linux 3.0.0 with included kvm module
>>>
>>> Not-Working:
>>> Linux
On 07/03/2012 04:14 PM, Peter Maydell wrote:
> On 3 July 2012 14:10, Avi Kivity wrote:
>> Or you could just call kvm_vcpu_block() here without having the
>> variable. But eventually you'll need it since you want to expose wfi
>> state to userspace for live migration.
>
> You could just always wa
Introduce a new feature bit and configuration field that provide
support for toggling the cache mode between writethrough and writeback.
Also rename VIRTIO_BLK_F_WCACHE to VIRTIO_BLK_F_WCE for consistency with
the spec.
Signed-off-by: Paolo Bonzini
---
hw/virtio-blk.c | 16 ++--
h
If the guest does not support flushes, we should run in writethrough mode.
The setting is temporary until the next reset, so that for example the
BIOS will run in writethrough mode while Linux will run with a writeback
cache.
VIRTIO_BLK_F_FLUSH has been introduced in Linux 2.6.32 (in 2009) and
was
These patches let virtio-blk use the new support for toggling the cache
mode between writethrough and writeback.
The first patch introduces a new feature bit and configuration field to
do this. The second patch disables writeback caching for guests that do
not negotiate VIRTIO_BLK_F_WCACHE (meani
This patch adds support for the new VIRTIO_BLK_F_CONFIG_WCE feature,
which exposes the cache mode in the configuration space and lets the
driver modify it. The cache mode is exposed via sysfs.
Even if the host does not support the new feature, the cache mode is
visible (thanks to the existing VIR
This patch introduces two improvements to writeback cache handling
in the virtio-blk spec.
1) The VIRTIO_BLK_F_FLUSH feature is renamed to VIRTIO_BLK_F_WCE, and
QEMU's behavior is documented explicitly as part of the spec: the host
negotiates the feature only if its cache is writeback. The obviou
Current QEMU and Linux drivers can export queue parameters via the
virtio-blk configuration space. Document this, since the next patch
will have to add another configuration field after these.
Signed-off-by: Paolo Bonzini
---
virtio-spec.lyx | 85 ++
Hi Rusty, here are two improvements to the virtio-blk spec.
The first documents the status quo of an extension that has already
been supported in QEMU for several releases, but never made it to the
official spec.
The second adds support for toggling the cache mode between writethrough
and writeba
On 07/03/2012 08:33 AM, Kevin Wolf wrote:
Am 02.07.2012 19:33, schrieb Eric Blake:
On 07/02/2012 04:16 AM, Juan Quintela wrote:
Hi
Please send in any agenda items you are interested in covering.
Can we discuss the future of 'getfd', the possibility of 'pass-fd', or
even the enhancement of
On 03.07.2012 15:13, Avi Kivity wrote:
On 07/03/2012 04:01 PM, Peter Lieven wrote:
Further output from my testing.
Working:
Linux 2.6.38 with included kvm module
Linux 3.0.0 with included kvm module
Not-Working:
Linux 3.2.0 with included kvm module
Linux 2.6.28 with kvm-kmod 3.4
Linux 3.0.0 wi
On 3 July 2012 14:10, Avi Kivity wrote:
> Or you could just call kvm_vcpu_block() here without having the
> variable. But eventually you'll need it since you want to expose wfi
> state to userspace for live migration.
You could just always wake the cpu when migrating: the
architecture allows WFI
On 07/03/2012 04:01 PM, Peter Lieven wrote:
> Further output from my testing.
>
> Working:
> Linux 2.6.38 with included kvm module
> Linux 3.0.0 with included kvm module
>
> Not-Working:
> Linux 3.2.0 with included kvm module
> Linux 2.6.28 with kvm-kmod 3.4
> Linux 3.0.0 with kvm-kmod 3.4
> Linu
On 07/03/2012 12:02 PM, Christoffer Dall wrote:
> From: Christoffer Dall
>
> When the guest executes a WFI instruction the operation is trapped to
> KVM, which emulates the instruction in software. There is no correlation
> between a guest executing a WFI instruction and actually putting the
> ha
Further output from my testing.
Working:
Linux 2.6.38 with included kvm module
Linux 3.0.0 with included kvm module
Not-Working:
Linux 3.2.0 with included kvm module
Linux 2.6.28 with kvm-kmod 3.4
Linux 3.0.0 with kvm-kmod 3.4
Linux 3.2.0 with kvm-kmod 3.4
I can trigger the race with any of qem
Am 02.07.2012 19:33, schrieb Eric Blake:
> On 07/02/2012 04:16 AM, Juan Quintela wrote:
>>
>> Hi
>>
>> Please send in any agenda items you are interested in covering.
>
> Can we discuss the future of 'getfd', the possibility of 'pass-fd', or
> even the enhancement of all existing monitor commands
On 07/03/2012 12:50 PM, Zhengwang Ruan wrote:
> Hi kashyapc & all,
>
> I see a piece of code in vmx_vcpu_run as below, is it used to switch
> context to a guest? Kvm don't used "vmlaunch" or "vmresume" to launch or
> resume a guest?
You trimmed the bit that contains vmlaunch/vmresume.
Why does
Isaku reminds me that I forgot to pust that minutes:
2012-06-19
--
- migration
* xbrle: ok
* huge memory: needs migration-thread, but should be ok
* postcopy: ask for latency: maximum/avg/std deviation
ask for vcpu utilization
RDMA?
* xbrle don't fix all
On 07/03/2012 12:01 PM, Christoffer Dall wrote:
> Provides complete world-switch implementation to switch to other guests
> running in non-secure modes. Includes Hyp exception handlers that
> capture necessary exception information and stores the information on
> the VCPU and KVM structures.
>
> T
Hi kashyapc & all,
I see a piece of code in vmx_vcpu_run as below, is it used to switch
context to a guest? Kvm don't used "vmlaunch" or "vmresume" to launch or
resume a guest? Why does kvm need to manually switch context by filling
registers using stored register copies?
===
a
于 2012年06月29日 10:58, Greg KH 写道:
> On Thu, Jun 28, 2012 at 04:37:38AM -0700, Greg KH wrote:
>> On Thu, Jun 28, 2012 at 05:54:30PM +0800, Yanfei Zhang wrote:
>>> 于 2012年06月28日 03:22, Greg KH 写道:
On Wed, Jun 27, 2012 at 04:54:54PM +0800, Yanfei Zhang wrote:
> This patch export offsets of fie
On Mon, Jul 02, 2012 at 04:54:03PM -0300, Eduardo Habkost wrote:
> On Mon, Jul 02, 2012 at 07:56:58PM +0100, Daniel P. Berrange wrote:
> > On Mon, Jul 02, 2012 at 03:06:32PM -0300, Eduardo Habkost wrote:
> > > Resending series, after fixing some coding style issues. Does anybody has
> > > any
> >
From: Christoffer Dall
When the guest executes a WFI instruction the operation is trapped to
KVM, which emulates the instruction in software. There is no correlation
between a guest executing a WFI instruction and actually putting the
hardware into a low-power mode, since a KVM guest is essential
When the guest accesses I/O memory this will create data abort
exceptions and they are handled by decoding the HSR information
(physical address, read/write, length, register) and forwarding reads
and writes to QEMU which performs the device emulation.
Certain classes of load/store operations do n
Handles the guest faults in KVM by mapping in corresponding user pages
in the 2nd stage page tables.
Introduces new ARM-specific kernel memory types, PAGE_KVM_GUEST and
pgprot_guest variables used to map 2nd stage memory for KVM guests.
Leverages MMU notifiers on KVM/ARM by supporting the kvm_unm
Adds a new important function in the main KVM/ARM code called
handle_exit() which is called from kvm_arch_vcpu_ioctl_run() on returns
from guest execution. This function examines the Hyp-Syndrome-Register
(HSR), which contains information telling KVM what caused the exit from
the guest.
Some of th
Provides complete world-switch implementation to switch to other guests
running in non-secure modes. Includes Hyp exception handlers that
capture necessary exception information and stores the information on
the VCPU and KVM structures.
The following Hyp-ABI is also documented in the code:
Hyp-AB
From: Christoffer Dall
Userspace can inject IRQs and FIQs through the KVM_IRQ_LINE VM ioctl.
This ioctl is used since the sematics are in fact two lines that can be
either raised or lowered on the VCPU - the IRQ and FIQ lines.
KVM needs to know which VCPU it must operate on and whether the FIQ o
From: Christoffer Dall
This commit introduces the framework for guest memory management
through the use of 2nd stage translation. Each VM has a pointer
to a level-1 table (the pgd field in struct kvm_arch) which is
used for the 2nd stage translations. Entries are added when handling
guest faults
Current initialization code relies on the MMU-bit and TE-bit of the
HSCTLR register to be cleared, so to support re-inserting the KVM module
we must clear these bits when unloading the module.
This is going to change when we support booting the kernel in Hyp mode
and get rid of the SMC call, in th
Sets up the required registers to run code in HYP-mode from the kernel.
By setting the HVBAR the kernel can execute code in Hyp-mode with
the MMU disabled. The HVBAR initially points to initialization code,
which initializes other Hyp-mode registers and enables the MMU
for Hyp-mode. Afterwards, th
Reset all core and cp15 registers to their architecturally defined reset
values at VCPU init time.
Signed-off-by: Christoffer Dall
---
arch/arm/include/asm/kvm_arm.h |6 ++
arch/arm/kvm/exports.c |2 +
arch/arm/kvm/reset.c | 100
Targets KVM support for Cortex A-15 processors.
Contains no real functionality but all the framework components,
make files, header files and some tracing functionality.
Most functionality is in arch/arm/kvm/* or arch/arm/include/asm/kvm_*.h.
“Nothing to see here. Move along, move along..."
Sig
From: Marc Zyngier
In order to avoid compilation failure when KVM is not compiled in,
guard the mmu_notifier specific sections with both CONFIG_MMU_NOTIFIER
and KVM_ARCH_WANT_MMU_NOTIFIER, like it is being done in the rest of
the KVM code.
Signed-off-by: Marc Zyngier
Signed-off-by: Christoffer
Handle KVM_IRQ_LINE and KVM_IRQ_LINE_STATUS in the generic
kvm_vm_ioctl() function and call into kvm_vm_ioctl_irq_line().
Signed-off-by: Christoffer Dall
---
arch/ia64/kvm/kvm-ia64.c | 33 ++---
arch/x86/kvm/x86.c | 33 ++---
incl
Add a HYP pgd to the core code (so it can benefit all Linux
hypervisors).
Populate this pgd with an identity mapping of the code contained
in the .hyp.idmap.text section
Offer a method to drop the this identity mapping through
hyp_idmap_teardown and re-create it through hyp_idmap_setup.
Make all
Select this option for ARM processors equipped with hardware
Virtualization Extensions.
Signed-off-by: Christoffer Dall
---
arch/arm/mm/Kconfig | 10 ++
1 file changed, 10 insertions(+)
diff --git a/arch/arm/mm/Kconfig b/arch/arm/mm/Kconfig
index 101b968..037dc53 100644
--- a/arch/arm
From: Marc Zyngier
The KVM hypervisor mmu code requires requires access to the
mem_type prot_pte field when setting up page tables pointing
to a device. Unfortunately, the mem_type structure is opaque.
Add an accessor (get_mem_type_prot_pte()) to retrieve the
prot_pte value.
Signed-off-by: Marc
The following series implements KVM support for ARM processors,
specifically on the Cortex A-15 platform. Work is done in
collaboration between Columbia University, Virtual Open Systems and
ARM/Linaro.
The patch series applies to kvm/next, specifically commit:
ae7a2a3fb6f8b784c2752863f4f1f20c656f
On Tue, 3 Jul 2012 05:11:35 -0300, Marcelo Tosatti wrote:
> On Mon, Jun 04, 2012 at 10:37:24AM +0530, Nikunj A. Dadhania wrote:
> > arch/x86/include/asm/kvm_para.h |3 +-
> > arch/x86/include/asm/tlbflush.h |9 ++
> > arch/x86/kernel/kvm.c |1 +
> > arch/x86/kvm/x86.c
On Tue, 3 Jul 2012 05:07:13 -0300, Marcelo Tosatti wrote:
> On Mon, Jun 04, 2012 at 10:38:17AM +0530, Nikunj A. Dadhania wrote:
> > In place of looping continuously introduce a halt if we do not succeed
> > after some time.
> >
> > For vcpus that were running an IPI is sent. In case, it went to
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