> -Original Message-
> From: linux-pci-ow...@vger.kernel.org [mailto:linux-pci-
> ow...@vger.kernel.org] On Behalf Of Gleb Natapov
> Sent: Tuesday, February 05, 2013 3:37 AM
> To: Pandarathil, Vijaymohan R
> Cc: Blue Swirl; Alex Williamson; Bjorn Helgaas; O
> -Original Message-
> From: Gleb Natapov [mailto:g...@redhat.com]
> Sent: Tuesday, February 05, 2013 1:21 AM
> To: Pandarathil, Vijaymohan R
> Cc: Blue Swirl; Alex Williamson; Bjorn Helgaas; Ortiz, Lance E;
> k...@vger.kernel.org; qemu-de...@nongnu.org; linux-.
> -Original Message-
> From: Gleb Natapov [mailto:g...@redhat.com]
> Sent: Tuesday, February 05, 2013 12:05 AM
> To: Blue Swirl
> Cc: Pandarathil, Vijaymohan R; Alex Williamson; Bjorn Helgaas; Ortiz, Lance
> E; k...@vger.kernel.org; qemu-de...@nongnu.org; linux-.
-Original Message-
From: Gleb Natapov [mailto:g...@redhat.com]
Sent: Tuesday, February 05, 2013 12:05 AM
To: Blue Swirl
Cc: Pandarathil, Vijaymohan R; Alex Williamson; Bjorn Helgaas; Ortiz, Lance
E; k...@vger.kernel.org; qemu-de...@nongnu.org; linux-...@vger.kernel.org;
linux
-Original Message-
From: Gleb Natapov [mailto:g...@redhat.com]
Sent: Tuesday, February 05, 2013 1:21 AM
To: Pandarathil, Vijaymohan R
Cc: Blue Swirl; Alex Williamson; Bjorn Helgaas; Ortiz, Lance E;
k...@vger.kernel.org; qemu-de...@nongnu.org; linux-...@vger.kernel.org;
linux
-Original Message-
From: linux-pci-ow...@vger.kernel.org [mailto:linux-pci-
ow...@vger.kernel.org] On Behalf Of Gleb Natapov
Sent: Tuesday, February 05, 2013 3:37 AM
To: Pandarathil, Vijaymohan R
Cc: Blue Swirl; Alex Williamson; Bjorn Helgaas; Ortiz, Lance E;
k...@vger.kernel.org
Add support for error containment when a VFIO device assigned to a KVM
guest encounters an error. This is for PCIe devices/drivers that support AER
functionality. When the host OS is notified of an error in a device either
through the firmware first approach or through an interrupt handled by the
- Create eventfd per vfio device assigned to a guest and register an
event handler
- This fd is passed to the vfio_pci driver through the SET_IRQ ioctl
- When the device encounters an error, the eventfd is signalled
and the qemu eventfd handler gets
- New VFIO_SET_IRQ ioctl option to pass the eventfd that is signaled
when
an error occurs in the vfio_pci_device
- Register pci_error_handler for the vfio_pci driver
- When the device encounters an error, the error handler registered by
the vfio_pci
- Added vfio_device_get_from_dev() as wrapper to get
reference to vfio_device from struct device.
- Added vfio_device_data() as a wrapper to get device_data from
vfio_device.
Signed-off-by: Vijay Mohan Pandarathil
---
drivers/vfio/vfio.c | 41
- Added vfio_device_get_from_dev() as wrapper to get
reference to vfio_device from struct device.
- Added vfio_device_data() as a wrapper to get device_data from
vfio_device.
Signed-off-by: Vijay Mohan Pandarathil vijaymohan.pandarat...@hp.com
---
- New VFIO_SET_IRQ ioctl option to pass the eventfd that is signaled
when
an error occurs in the vfio_pci_device
- Register pci_error_handler for the vfio_pci driver
- When the device encounters an error, the error handler registered by
the vfio_pci
- Create eventfd per vfio device assigned to a guest and register an
event handler
- This fd is passed to the vfio_pci driver through the SET_IRQ ioctl
- When the device encounters an error, the eventfd is signalled
and the qemu eventfd handler gets
Add support for error containment when a VFIO device assigned to a KVM
guest encounters an error. This is for PCIe devices/drivers that support AER
functionality. When the host OS is notified of an error in a device either
through the firmware first approach or through an interrupt handled by the
> -Original Message-
> From: Alex Williamson [mailto:alex.william...@redhat.com]
> Sent: Tuesday, January 29, 2013 5:25 AM
> To: Pandarathil, Vijaymohan R
> Cc: Gleb Natapov; Bjorn Helgaas; Blue Swirl; Ortiz, Lance E;
> k...@vger.kernel.org; qemu-de...
-Original Message-
From: Alex Williamson [mailto:alex.william...@redhat.com]
Sent: Tuesday, January 29, 2013 5:25 AM
To: Pandarathil, Vijaymohan R
Cc: Gleb Natapov; Bjorn Helgaas; Blue Swirl; Ortiz, Lance E;
k...@vger.kernel.org; qemu-de...@nongnu.org; linux-...@vger.kernel.org
- Create eventfd per vfio device assigned to a guest and register an
event handler
- This fd is passed to the vfio_pci driver through the SET_IRQ ioctl
- When the device encounters an error, the eventfd is signalled
and the qemu eventfd handler gets
- New VFIO_SET_IRQ ioctl option to pass the eventfd that is signalled
when
an error occurs in the vfio_pci_device
- Register pci_error_handler for the vfio_pci driver
- When the device encounters an error, the error handler registered by
the
- Added vfio_device_get_from_vdev(), vfio_device_put_vdev()
as wrappers to get/put reference to vfio_device from struct device.
- Added vfio_device_data() as a wrapper to get device_data from
vfio_device.
Signed-off-by: Vijay Mohan Pandarathil
---
Add support for error containment when a VFIO device assigned to a KVM
guest encounters an error. This is for PCIe devices/drivers that support AER
functionality. When the host OS is notified of an error in a device either
through the firmware first approach or through an interrupt handled by the
Add support for error containment when a VFIO device assigned to a KVM
guest encounters an error. This is for PCIe devices/drivers that support AER
functionality. When the host OS is notified of an error in a device either
through the firmware first approach or through an interrupt handled by the
- Added vfio_device_get_from_vdev(), vfio_device_put_vdev()
as wrappers to get/put reference to vfio_device from struct device.
- Added vfio_device_data() as a wrapper to get device_data from
vfio_device.
Signed-off-by: Vijay Mohan Pandarathil
- New VFIO_SET_IRQ ioctl option to pass the eventfd that is signalled
when
an error occurs in the vfio_pci_device
- Register pci_error_handler for the vfio_pci driver
- When the device encounters an error, the error handler registered by
the
- Create eventfd per vfio device assigned to a guest and register an
event handler
- This fd is passed to the vfio_pci driver through the SET_IRQ ioctl
- When the device encounters an error, the eventfd is signalled
and the qemu eventfd handler gets
> -Original Message-
> From: Blue Swirl [mailto:blauwir...@gmail.com]
> Sent: Wednesday, January 09, 2013 1:23 PM
> To: Pandarathil, Vijaymohan R
> Cc: Alex Williamson; Bjorn Helgaas; Gleb Natapov; linux-
> p...@vger.kernel.org; qemu-de...@nongnu.org; k...@vger.kernel
> -Original Message-
> From: Alex Williamson [mailto:alex.william...@redhat.com]
> Sent: Wednesday, January 09, 2013 10:08 AM
> To: Pandarathil, Vijaymohan R
> Cc: Bjorn Helgaas; Gleb Natapov; k...@vger.kernel.org; qemu-
> de...@nongnu.org; linux-...@vger.kernel
> -Original Message-
> From: Alex Williamson [mailto:alex.william...@redhat.com]
> Sent: Wednesday, January 09, 2013 11:05 AM
> To: Pandarathil, Vijaymohan R
> Cc: Bjorn Helgaas; Gleb Natapov; k...@vger.kernel.org; qemu-
> de...@nongnu.org; linux-...@vger.kernel
-Original Message-
From: Alex Williamson [mailto:alex.william...@redhat.com]
Sent: Wednesday, January 09, 2013 11:05 AM
To: Pandarathil, Vijaymohan R
Cc: Bjorn Helgaas; Gleb Natapov; k...@vger.kernel.org; qemu-
de...@nongnu.org; linux-...@vger.kernel.org; linux-kernel
-Original Message-
From: Alex Williamson [mailto:alex.william...@redhat.com]
Sent: Wednesday, January 09, 2013 10:08 AM
To: Pandarathil, Vijaymohan R
Cc: Bjorn Helgaas; Gleb Natapov; k...@vger.kernel.org; qemu-
de...@nongnu.org; linux-...@vger.kernel.org; linux-kernel
-Original Message-
From: Blue Swirl [mailto:blauwir...@gmail.com]
Sent: Wednesday, January 09, 2013 1:23 PM
To: Pandarathil, Vijaymohan R
Cc: Alex Williamson; Bjorn Helgaas; Gleb Natapov; linux-
p...@vger.kernel.org; qemu-de...@nongnu.org; k...@vger.kernel.org; linux-
ker
- Create eventfd per vfio device assigned to a guest and register an
event handler
- This fd is passed to the vfio_pci driver through a new ioctl
- When the device encounters an error, the eventfd is signaled
and the qemu eventfd handler gets invoked.
Add support for error containment when a VFIO device assigned to a KVM
guest encounters an error. This is for PCIe devices/drivers that support AER
functionality. When the host OS is notified of an error in a device either
through the firmware first approach or through an interrupt handled by the
- New ioctl which is used to pass the eventfd that is signaled when
an error occurs in the vfio_pci_device
- Register pci_error_handler for the vfio_pci driver
- When the device encounters an error, the error handler registered by
the vfio_pci driver
Add support for error containment when a VFIO device assigned to a KVM
guest encounters an error. This is for PCIe devices/drivers that support AER
functionality. When the host OS is notified of an error in a device either
through the firmware first approach or through an interrupt handled by the
- New ioctl which is used to pass the eventfd that is signaled when
an error occurs in the vfio_pci_device
- Register pci_error_handler for the vfio_pci driver
- When the device encounters an error, the error handler registered by
the vfio_pci driver
- Create eventfd per vfio device assigned to a guest and register an
event handler
- This fd is passed to the vfio_pci driver through a new ioctl
- When the device encounters an error, the eventfd is signaled
and the qemu eventfd handler gets invoked.
Looks correct.
Vijay
> -Original Message-
> From: Bjorn Helgaas [mailto:bhelg...@google.com]
> Sent: Wednesday, November 28, 2012 12:15 PM
> To: Pandarathil, Vijaymohan R
> Cc: linux-kernel@vger.kernel.org; linux-...@vger.kernel.org;
> linasveps...@gmail.com; Myron Sto
Looks correct.
Vijay
-Original Message-
From: Bjorn Helgaas [mailto:bhelg...@google.com]
Sent: Wednesday, November 28, 2012 12:15 PM
To: Pandarathil, Vijaymohan R
Cc: linux-kernel@vger.kernel.org; linux-...@vger.kernel.org;
linasveps...@gmail.com; Myron Stowe; Ortiz, Lance E; Huang
> -Original Message-
> From: Stefan Hajnoczi [mailto:stefa...@gmail.com]
> Sent: Tuesday, November 20, 2012 5:41 AM
> To: Pandarathil, Vijaymohan R
> Cc: k...@vger.kernel.org; linux-...@vger.kernel.org; qemu-de...@nongnu.org;
> linux-kernel@vger.kernel.org
> Subject
-Original Message-
From: Stefan Hajnoczi [mailto:stefa...@gmail.com]
Sent: Tuesday, November 20, 2012 5:41 AM
To: Pandarathil, Vijaymohan R
Cc: k...@vger.kernel.org; linux-...@vger.kernel.org; qemu-de...@nongnu.org;
linux-kernel@vger.kernel.org
Subject: Re: [PATCH 0/4] AER-KVM
- Register a notifier function to be called whenever a PCIe error is
detected by the AER subsystem.
- The notifier function bumps up a global count to keep track of the
error notifications.
- Before guest entry, each vcpu checks if there has been any new
notifications
- When KVM_RUN ioctl returns with an exit reason requesting a shutdown
of the guest due to a PCI device error detected by AER, shutdown the
guest immediately.
Signed-off-by: Vijay Mohan Pandarathil
---
kvm-all.c | 6 ++
linux-headers/linux/kvm.h | 1 +
2 files changed, 7
Add support for error containment when a PCI pass-thru device assigned to a KVM
guest encounters an error. This is for PCIe devices/drivers that support AER
functionality. When the OS is notified of an error in a device either
through the firmware first approach or through an interrupt handled by
- When an uncorrected recoverable error is reported via an NMI in the
firmware first model of AER, invoke the callbacks registered for
notifications as well as mark the device as tainted.
- Add a new function ghes_mark_dev_err() leveraged from ghes_do_proc()
to identify the
- Adds infrastructure support for error notifications from AER subsystem
to other subsystems. The generic notifier_chain functionality is used.
- When the AER rootport driver detects an uncorrected error, invoke the
callbacks registered for notifications as well as mark the device as
tainted.
-
- Adds infrastructure support for error notifications from AER subsystem
to other subsystems. The generic notifier_chain functionality is used.
- When the AER rootport driver detects an uncorrected error, invoke the
callbacks registered for notifications as well as mark the device as
tainted.
-
- When an uncorrected recoverable error is reported via an NMI in the
firmware first model of AER, invoke the callbacks registered for
notifications as well as mark the device as tainted.
- Add a new function ghes_mark_dev_err() leveraged from ghes_do_proc()
to identify the
Add support for error containment when a PCI pass-thru device assigned to a KVM
guest encounters an error. This is for PCIe devices/drivers that support AER
functionality. When the OS is notified of an error in a device either
through the firmware first approach or through an interrupt handled by
- Register a notifier function to be called whenever a PCIe error is
detected by the AER subsystem.
- The notifier function bumps up a global count to keep track of the
error notifications.
- Before guest entry, each vcpu checks if there has been any new
notifications
- When KVM_RUN ioctl returns with an exit reason requesting a shutdown
of the guest due to a PCI device error detected by AER, shutdown the
guest immediately.
Signed-off-by: Vijay Mohan Pandarathil vijaymohan.pandarat...@hp.com
---
kvm-all.c | 6 ++
linux-headers/linux/kvm.h
When an error is detected on a PCIe device which does not have an
AER-aware driver, prevent AER infrastructure from reporting
successful error recovery.
This is because the report_error_detected() function that gets
called in the first phase of recovery process allows forward
progress even when
When an error is detected on a PCIe device which does not have an
AER-aware driver, prevent AER infrastructure from reporting
successful error recovery.
This is because the report_error_detected() function that gets
called in the first phase of recovery process allows forward
progress even when
When an error is detected on a PCIe device which does not have an
AER-aware driver, prevent AER infrastructure from reporting
successful error recovery.
This is because the report_error_detected() function that gets
called in the first phase of recovery process allows forward
progress even when
When an error is detected on a PCIe device which does not have an
AER-aware driver, prevent AER infrastructure from reporting
successful error recovery.
This is because the report_error_detected() function that gets
called in the first phase of recovery process allows forward
progress even when
> -Original Message-
> From: Bjorn Helgaas [mailto:bhelg...@google.com]
> Sent: Thursday, November 15, 2012 5:09 PM
> To: Pandarathil, Vijaymohan R
> Cc: linux-kernel@vger.kernel.org; linux-...@vger.kernel.org;
> linasveps...@gmail.com; Myron Stowe; Ortiz, Lance E; Hua
-Original Message-
From: Bjorn Helgaas [mailto:bhelg...@google.com]
Sent: Thursday, November 15, 2012 5:09 PM
To: Pandarathil, Vijaymohan R
Cc: linux-kernel@vger.kernel.org; linux-...@vger.kernel.org;
linasveps...@gmail.com; Myron Stowe; Ortiz, Lance E; Huang Ying; Hidetoshi
Seto
Thanks for the comments. See my response below.
> -Original Message-
> From: Bjorn Helgaas [mailto:bhelg...@google.com]
> Sent: Wednesday, November 14, 2012 4:51 PM
> To: Pandarathil, Vijaymohan R
> Cc: linux-kernel@vger.kernel.org; linux-...@vger.kernel.org;
> lina
Thanks for the comments. See my response below.
-Original Message-
From: Bjorn Helgaas [mailto:bhelg...@google.com]
Sent: Wednesday, November 14, 2012 4:51 PM
To: Pandarathil, Vijaymohan R
Cc: linux-kernel@vger.kernel.org; linux-...@vger.kernel.org;
linasveps...@gmail.com; Myron
When an error is detected on a PCIe device which does not have an
AER-aware driver, prevent AER infrastructure from reporting
successful error recovery.
This is because the report_error_detected() function that gets
called in the first phase of recovery process allows forward
progress even when
When an error is detected on a PCIe device which does not have an
AER-aware driver, prevent AER infrastructure from reporting
successful error recovery.
This is because the report_error_detected() function that gets
called in the first phase of recovery process allows forward
progress even when
@vger.kernel.org; j...@perches.com; bhelg...@google.com;
isimatu.yasu...@jp.fujitsu.com; liu...@gmail.com;
srivatsa.b...@linux.vnet.ibm.com; pra...@redhat.com; imamm...@redhat.com;
Pandarathil, Vijaymohan R; Kani, Toshimitsu
Subject: [PATCH v2 0/4] ACPI: hotplug messages improvement
This patchset
-a...@vger.kernel.org
Cc: linux-kernel@vger.kernel.org; j...@perches.com; bhelg...@google.com;
isimatu.yasu...@jp.fujitsu.com; liu...@gmail.com;
srivatsa.b...@linux.vnet.ibm.com; pra...@redhat.com; imamm...@redhat.com;
Pandarathil, Vijaymohan R; Kani, Toshimitsu
Subject: [PATCH v2 0/4] ACPI: hotplug messages
Hi Toshi,
Did some basic KVM guest cpu hotplug testing of this patch over your OST
patchset along with fixes in qemu-kvm for guest cpu hotplug.
Vijay
virsh # vcpucount vmb91g1
maximum config 4
maximum live 4
current config 4
current live
Hi Toshi,
Did some basic KVM guest cpu hotplug testing of this patch over your OST
patchset along with fixes in qemu-kvm for guest cpu hotplug.
Vijay
virsh # vcpucount vmb91g1
maximum config 4
maximum live 4
current config 4
current live
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