On Wed, May 08, 2013 at 11:15:32AM +0800, Hu Tao wrote:
> pvpanic device is a qemu simulated device through which guest panic
> event is sent to host.
>
> Signed-off-by: Hu Tao
> ---
>
> v18 -> v19: 1. return -ENODEV early if port is 0
>
> v17 -> v18: 1. ca
pvpanic device is a qemu simulated device through which guest panic
event is sent to host.
Signed-off-by: Hu Tao
---
v18 -> v19: 1. return -ENODEV early if port is 0
v17 -> v18: 1. call acpi_walk_resources to get the port, and usb outb instead
of acpi_evaluate_oject in
On Tue, May 07, 2013 at 10:10:32AM +0200, Paolo Bonzini wrote:
> Il 07/05/2013 05:39, Hu Tao ha scritto:
> > pvpanic device is a qemu simulated device through which guest panic
> > event is sent to host.
> >
> > Signed-off-by: Hu Tao
> > ---
> >
> >
pvpanic device is a qemu simulated device through which guest panic
event is sent to host.
Signed-off-by: Hu Tao
---
v17 -> v18: 1. call acpi_walk_resources to get the port, and usb outb instead
of acpi_evaluate_oject in panic notifier callback
2. reword h
On Fri, May 03, 2013 at 06:59:18PM -0300, Marcelo Tosatti wrote:
> On Fri, May 03, 2013 at 10:47:10AM +0800, Hu Tao wrote:
> > pvpanic device is a qemu simulated device through which guest panic
> > event is sent to host.
> >
> > Signed-off-by: Hu Tao
> > ---
pvpanic device is a qemu simulated device through which guest panic
event is sent to host.
Signed-off-by: Hu Tao
---
drivers/platform/x86/Kconfig | 7 +++
drivers/platform/x86/Makefile | 2 +
drivers/platform/x86/pvpanic.c | 115 +
3 files changed
On Tue, Mar 05, 2013 at 09:26:18AM +0100, Paolo Bonzini wrote:
> Il 05/03/2013 04:17, Hu Tao ha scritto:
> > Will
> >
> > if (runstate_check(RUN_STATE_INTERNAL_ERROR) ||
> > runstate_check(RUN_STATE_SHUTDOWN) ||
> > runsta
Hi,
On Mon, Mar 04, 2013 at 11:05:37AM +0100, Paolo Bonzini wrote:
> Il 03/03/2013 10:17, Gleb Natapov ha scritto:
> > On Thu, Feb 28, 2013 at 08:13:10PM +0800, Hu Tao wrote:
> >> This series implements a new interface, kvm pv event, to notify host when
> >> some events
On Sun, Mar 03, 2013 at 11:17:38AM +0200, Gleb Natapov wrote:
> On Thu, Feb 28, 2013 at 08:13:10PM +0800, Hu Tao wrote:
> > This series implements a new interface, kvm pv event, to notify host when
> > some events happen in guest. Right now there is one supported event:
On Mon, Mar 04, 2013 at 10:32:17AM +0100, Paolo Bonzini wrote:
> Il 28/02/2013 13:13, Hu Tao ha scritto:
> > From: Wen Congyang
> >
> > The guest should run after resetting it, but it does not run if its
> > old state is RUN_STATE_INTERNAL_ERROR or RUN_STATE_PA
On Thu, Feb 28, 2013 at 02:23:42PM +0100, Jan Kiszka wrote:
> On 2013-02-28 13:13, Hu Tao wrote:
> > From: Wen Congyang
> >
> > The guest should run after resetting it, but it does not run if its
> > old state is RUN_STATE_INTERNAL_ERROR or RUN_STATE_PAUSED.
> &
On Fri, Mar 01, 2013 at 09:31:47AM -0700, Eric Blake wrote:
> On 02/28/2013 05:13 AM, Hu Tao wrote:
> > This event will be emited when the guest is panicked.
> >
> > Signed-off-by: Wen Congyang
> > ---
> > include/monitor/monitor.h | 1 +
> > monitor.c
On Mon, Mar 04, 2013 at 10:40:15AM +0100, Paolo Bonzini wrote:
> Il 28/02/2013 13:13, Hu Tao ha scritto:
> > The guest will be in this state when it is panicked.
> >
> > Signed-off-by: Wen Congyang
> > Signed-off-by: Hu Tao
> > ---
> > migration.c
On Mon, Mar 04, 2013 at 10:30:48AM +0100, Paolo Bonzini wrote:
> Il 28/02/2013 13:13, Hu Tao ha scritto:
> > This patch enables preservation of cpu runstate during save/load vm.
> > So when a vm is restored from snapshot, the cpu runstate is restored,
> > too.
>
> I
On Thu, Feb 28, 2013 at 02:12:37PM -0700, Eric Blake wrote:
> On 02/28/2013 05:13 AM, Hu Tao wrote:
> > This patch enables preservation of cpu runstate during save/load vm.
> > So when a vm is restored from snapshot, the cpu runstate is restored,
> > too.
>
> What
rtual device
3. it can work when starting the kernel
Signed-off-by: Wen Congyang
Signed-off-by: Hu Tao
---
arch/x86/include/asm/kvm_para.h | 26 +
arch/x86/include/uapi/asm/kvm_para.h | 2 ++
arch/x86/kernel/Makefile | 2 +-
arch/x86/kernel/kvm.c
clude it's code into pv_event.c
for such target.
Note: if we emit QEVENT_GUEST_PANICKED only, and the management
application does not receive this event(the management may not
run when the event is emitted), the management won't know the
guest is panicked.
Signed-off-by: Wen Congyang
S
Signed-off-by: Hu Tao
---
docs/pv-event.txt | 17 +
1 file changed, 17 insertions(+)
create mode 100644 docs/pv-event.txt
diff --git a/docs/pv-event.txt b/docs/pv-event.txt
new file mode 100644
index 000..ac9e7fa
--- /dev/null
+++ b/docs/pv-event.txt
@@ -0,0 +1,17 @@
+KVM
: running
Signed-off-by: Hu Tao
---
include/sysemu/sysemu.h | 2 ++
migration.c | 6 +-
monitor.c | 5 ++---
savevm.c| 1 +
vl.c| 34 ++
5 files changed, 40 insertions(+), 8 deletions(-)
diff
This event will be emited when the guest is panicked.
Signed-off-by: Wen Congyang
---
include/monitor/monitor.h | 1 +
monitor.c | 1 +
2 files changed, 2 insertions(+)
diff --git a/include/monitor/monitor.h b/include/monitor/monitor.h
index 87fb49c..4006905 100644
--- a/include
Signed-off-by: Wen Congyang
Signed-off-by: Hu Tao
---
hw/pc_piix.c| 9 -
qemu-options.hx | 3 ++-
vl.c| 4
3 files changed, 14 insertions(+), 2 deletions(-)
diff --git a/hw/pc_piix.c b/hw/pc_piix.c
index 24a9bf3..82a421a 100644
--- a/hw/pc_piix.c
+++ b/hw/pc_piix.c
update kernel headers to add pv event macros.
Signed-off-by: Wen Congyang
Signed-off-by: Hu Tao
---
linux-headers/asm-x86/kvm_para.h | 1 +
linux-headers/linux/kvm_para.h | 6 ++
2 files changed, 7 insertions(+)
diff --git a/linux-headers/asm-x86/kvm_para.h b/linux-headers/asm-x86
The guest will be in this state when it is panicked.
Signed-off-by: Wen Congyang
Signed-off-by: Hu Tao
---
migration.c | 1 +
qapi-schema.json | 6 +-
qmp.c| 3 ++-
vl.c | 11 ++-
4 files changed, 18 insertions(+), 3 deletions(-)
diff --git a
From: Wen Congyang
The guest should run after resetting it, but it does not run if its
old state is RUN_STATE_INTERNAL_ERROR or RUN_STATE_PAUSED.
We don't set runstate to RUN_STATE_PAUSED when resetting the guest,
so the runstate will be changed from RUN_STATE_INTERNAL_ERROR or
RUN_STATE_PAUSED
quring the status
of vm in destination host when migration completes.
v12: http://lists.nongnu.org/archive/html/qemu-devel/2013-01/msg04120.html
changes from v12:
- no DO_UPCASE
- the interface is only for x86 now
- request 4 bytes io range(hw/kvm_pv_event.c)
- rebase to the latest tree
Hu
On Thu, Feb 07, 2013 at 11:39:47PM -0200, Marcelo Tosatti wrote:
> Hi,
>
> On Wed, Jan 23, 2013 at 03:19:21PM +0800, Hu Tao wrote:
> > We can know the guest is panicked when the guest runs on xen.
> > But we do not have such feature on kvm.
> >
> > Another purpo
On Thu, Feb 07, 2013 at 11:50:28PM -0200, Marcelo Tosatti wrote:
> On Wed, Jan 23, 2013 at 03:19:23PM +0800, Hu Tao wrote:
> > From: Wen Congyang
> >
> > The guest should run after resetting it, but it does not run if its
> > old state is RUN_STATE_INTERNAL_ERROR or RU
On Thu, Feb 07, 2013 at 11:45:34PM -0200, Marcelo Tosatti wrote:
> On Wed, Jan 23, 2013 at 03:19:22PM +0800, Hu Tao wrote:
> > This patch enables preservation of cpu runstate during save/load vm.
> > So when a vm is restored from snapshot, the cpu runstate is restored,
> &
The guest will be in this state when it is panicked.
If guest is panicked during live migration, the runstate
RUN_STATE_GUEST_PANICKED will be transferred to dest machine.
Signed-off-by: Wen Congyang
Signed-off-by: Hu Tao
---
migration.c | 1 +
qapi-schema.json | 6 +-
qmp.c
update kernel headers to add pv event macros.
Signed-off-by: Wen Congyang
Signed-off-by: Hu Tao
---
linux-headers/asm-x86/kvm_para.h | 1 +
linux-headers/linux/kvm_para.h | 6 ++
2 files changed, 7 insertions(+)
diff --git a/linux-headers/asm-x86/kvm_para.h b/linux-headers/asm-x86
quring the status
of vm in destination host.
This version is a rebase and no code change.
v12: http://lists.gnu.org/archive/html/qemu-devel/2012-12/msg01459.html
v11: http://lists.gnu.org/archive/html/qemu-devel/2012-10/msg04361.html
Hu Tao (7):
save/load cpu runstate
update kernel headers
add
rtual device
3. it can work when starting the kernel
Signed-off-by: Wen Congyang
Signed-off-by: Hu Tao
---
arch/ia64/kvm/irq.h | 19 +
arch/powerpc/include/asm/kvm_para.h | 18
arch/s390/include/asm/kvm_para.h | 19 +
arch/x86/includ
This event will be emited when the guest is panicked.
Signed-off-by: Wen Congyang
---
include/monitor/monitor.h | 1 +
monitor.c | 1 +
2 files changed, 2 insertions(+)
diff --git a/include/monitor/monitor.h b/include/monitor/monitor.h
index 87fb49c..4006905 100644
--- a/include
From: Wen Congyang
The guest should run after resetting it, but it does not run if its
old state is RUN_STATE_INTERNAL_ERROR or RUN_STATE_PAUSED.
We don't set runstate to RUN_STATE_PAUSED when resetting the guest,
so the runstate will be changed from RUN_STATE_INTERNAL_ERROR or
RUN_STATE_PAUSED
Signed-off-by: Wen Congyang
Signed-off-by: Hu Tao
---
hw/pc_piix.c| 9 -
qemu-options.hx | 3 ++-
vl.c| 4
3 files changed, 14 insertions(+), 2 deletions(-)
diff --git a/hw/pc_piix.c b/hw/pc_piix.c
index fed6ccf..507c98b 100644
--- a/hw/pc_piix.c
+++ b/hw/pc_piix.c
: running
Signed-off-by: Hu Tao
---
include/sysemu/sysemu.h | 2 ++
migration.c | 6 +-
monitor.c | 5 ++---
savevm.c| 1 +
vl.c| 34 ++
5 files changed, 40 insertions(+), 8 deletions(-)
diff
clude it's code into pv_event.c
for such target.
Note: if we emit QEVENT_GUEST_PANICKED only, and the management
application does not receive this event(the management may not
run when the event is emitted), the management won't know the
guest is panicked.
Signed-off-by: Wen Congyang
S
Signed-off-by: Hu Tao
---
docs/pv-event.txt | 17 +
1 file changed, 17 insertions(+)
create mode 100644 docs/pv-event.txt
diff --git a/docs/pv-event.txt b/docs/pv-event.txt
new file mode 100644
index 000..ac9e7fa
--- /dev/null
+++ b/docs/pv-event.txt
@@ -0,0 +1,17 @@
+KVM
On Tue, Dec 25, 2012 at 07:54:20PM -0200, Marcelo Tosatti wrote:
> On Thu, Dec 20, 2012 at 03:53:59PM +0800, Hu Tao wrote:
> > Hi,
> >
> > Any comments?
>
> Did you verify possibilities listed at
> https://lkml.org/lkml/2012/11/20/653 ?
Except the EIO one you
Hi Marcelo,
Sorry for the late reply.
On Tue, Dec 25, 2012 at 07:52:05PM -0200, Marcelo Tosatti wrote:
> On Thu, Dec 20, 2012 at 03:53:59PM +0800, Hu Tao wrote:
> > Hi,
> >
> > Any comments?
>
> As far as i can see, items 2 and 3 of
>
> https://lkml.org/lkml/
Hi,
Any comments?
On Wed, Dec 12, 2012 at 02:13:43PM +0800, Hu Tao wrote:
> This series implements a new interface, kvm pv event, to notify host when
> some events happen in guest. Right now there is one supported event: guest
> panic.
>
> changes from v11:
>
> - add a
Signed-off-by: Hu Tao
---
migration.c | 6 +-
monitor.c | 5 ++---
savevm.c| 1 +
sysemu.h| 2 ++
vl.c| 34 ++
5 files changed, 40 insertions(+), 8 deletions(-)
diff --git a/migration.c b/migration.c
index 73ce170..31fa300 100644
--- a
update kernel headers to add pv event macros.
Signed-off-by: Wen Congyang
Signed-off-by: Hu Tao
---
linux-headers/asm-x86/kvm_para.h | 1 +
linux-headers/linux/kvm_para.h | 6 ++
2 files changed, 7 insertions(+)
diff --git a/linux-headers/asm-x86/kvm_para.h b/linux-headers/asm-x86
rtual device
3. it can work when starting the kernel
Signed-off-by: Wen Congyang
Signed-off-by: Hu Tao
---
arch/ia64/kvm/irq.h | 19 +
arch/powerpc/include/asm/kvm_para.h | 18 +
arch/s390/include/asm/kvm_para.h| 19 +
arch/x86/includ
s supplied
- reserve RUN_STATE_GUEST_PANICKED during migration
- add doc of enable_pv_event option
- disable reboot-on-panic if pv_event is on
v11: http://lists.gnu.org/archive/html/qemu-devel/2012-10/msg04361.html
Hu Tao (7):
save/load cpu runstate
update kernel headers
add a ne
The guest will be in this state when it is panicked.
Signed-off-by: Wen Congyang
Signed-off-by: Hu Tao
---
migration.c | 1 +
qapi-schema.json | 6 +-
qmp.c| 3 ++-
vl.c | 11 ++-
4 files changed, 18 insertions(+), 3 deletions(-)
diff --git a
This event will be emited when the guest is panicked.
Signed-off-by: Wen Congyang
---
monitor.c | 1 +
monitor.h | 1 +
2 files changed, 2 insertions(+)
diff --git a/monitor.c b/monitor.c
index 1226501..231785b 100644
--- a/monitor.c
+++ b/monitor.c
@@ -458,6 +458,7 @@ static const char *monito
From: Wen Congyang
The guest should run after resetting it, but it does not run if its
old state is RUN_STATE_INTERNAL_ERROR or RUN_STATE_PAUSED.
We don't set runstate to RUN_STATE_PAUSED when resetting the guest,
so the runstate will be changed from RUN_STATE_INTERNAL_ERROR or
RUN_STATE_PAUSED
Signed-off-by: Wen Congyang
Signed-off-by: Hu Tao
---
hw/pc_piix.c| 8 +++-
qemu-config.c | 4
qemu-options.hx | 3 ++-
3 files changed, 13 insertions(+), 2 deletions(-)
diff --git a/hw/pc_piix.c b/hw/pc_piix.c
index 8380702..bf31b96 100644
--- a/hw/pc_piix.c
+++ b/hw/pc_piix.c
Signed-off-by: Hu Tao
---
docs/pv-event.txt | 17 +
1 file changed, 17 insertions(+)
create mode 100644 docs/pv-event.txt
diff --git a/docs/pv-event.txt b/docs/pv-event.txt
new file mode 100644
index 000..ac9e7fa
--- /dev/null
+++ b/docs/pv-event.txt
@@ -0,0 +1,17 @@
+KVM
clude it's code into pv_event.c
for such target.
Note: if we emit QEVENT_GUEST_PANICKED only, and the management
application does not receive this event(the management may not
run when the event is emitted), the management won't know the
guest is panicked.
Signed-off-by: Wen Congyang
S
Hi Marcelo,
On Tue, Nov 13, 2012 at 12:19:08AM -0200, Marcelo Tosatti wrote:
> On Fri, Nov 09, 2012 at 03:17:39PM -0500, Sasha Levin wrote:
> > On Mon, Nov 5, 2012 at 8:58 PM, Hu Tao wrote:
> > > But in the case of panic notification, more dependency means more
> > >
-in or
as a module), or guest doesn't support virtio, etc.
We choose IO because compared to virtio device, it is not that heavy and
less problematic.
>
> Furthermore, why stop at virtio? What if the KVM code has a bug and it
> doesn't pass IO properly? Or the x86 code? we
From: Wen Congyang
The guest should run after reseting it, but it does not run if its
old state is RUN_STATE_INTERNAL_ERROR or RUN_STATE_PAUSED.
We don't set runstate to RUN_STATE_PAUSED when reseting the guest,
so the runstate will be changed from RUN_STATE_INTERNAL_ERROR or
RUN_STATE_PAUSED to
update kernel headers to add pv event macros.
Signed-off-by: Wen Congyang
Signed-off-by: Hu Tao
---
linux-headers/asm-x86/kvm_para.h |1 +
linux-headers/linux/kvm_para.h |6 ++
2 files changed, 7 insertions(+)
diff --git a/linux-headers/asm-x86/kvm_para.h b/linux-headers/asm-x86
This event will be emited when the guest is panicked.
Signed-off-by: Wen Congyang
---
monitor.c |1 +
monitor.h |1 +
2 files changed, 2 insertions(+)
diff --git a/monitor.c b/monitor.c
index d17ae2d..d2e4bbf 100644
--- a/monitor.c
+++ b/monitor.c
@@ -457,6 +457,7 @@ static const char *
clude it's code into pv_event.c
for such target.
Note: if we emit QEVENT_GUEST_PANICKED only, and the management
application does not receive this event(the management may not
run when the event is emitted), the management won't know the
guest is panicked.
Signed-off-by: Wen Congyang
S
From: Wen Congyang
Signed-off-by: Wen Congyang
---
hw/pc_piix.c|6 +-
qemu-config.c |4
qemu-options.hx |3 ++-
3 files changed, 11 insertions(+), 2 deletions(-)
diff --git a/hw/pc_piix.c b/hw/pc_piix.c
index fb67dc1..864d356 100644
--- a/hw/pc_piix.c
+++ b/hw/pc_pii
rtual device
3. it can work when starting the kernel
Signed-off-by: Wen Congyang
Signed-off-by: Hu Tao
---
changes from v10:
- add a kernel parameter to disable pv-event
- detailed documentation to describe pv event interface
- make kvm_pv_event_init() local
Documentation/virtua
From: Wen Congyang
The guest will be in this state when it is panicked.
Signed-off-by: Wen Congyang
---
qapi-schema.json |6 +-
qmp.c|3 ++-
vl.c |7 ++-
3 files changed, 13 insertions(+), 3 deletions(-)
diff --git a/qapi-schema.json b/qapi-schema.j
Hi Paolo,
The same bug I found in v3 is still in v5. please refer to this mail:
https://lkml.org/lkml/2012/3/10/207
--
Thanks,
Hu Tao
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cmd->req.tmf, sizeof cmd->resp.tmf,
> +GFP_NOIO);
> + if (ret < 0)
> + return FAILED;
> +
> + wait_for_completion(&comp);
> + if (cmd->resp.tmf.response != VIRTIO_SCSI_S_OK &&
> + cmd->resp.tmf.re
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