On Mon, May 19, 2014 at 06:37:24PM -0600, Alex Williamson wrote:
On Tue, 2014-05-20 at 10:22 +1000, Gavin Shan wrote:
On Mon, May 19, 2014 at 04:33:10PM -0600, Alex Williamson wrote:
On Wed, 2014-05-14 at 14:11 +1000, Gavin Shan wrote:
The patch adds new IOCTL command VFIO_EEH_INFO to VFIO
The patch introduces new flags for EEH device and PE to indicate
that the device or PE has been passed through to guest. In turn,
we will deliver EEH errors to guest for further handling, which
will be done in subsequent patches.
Signed-off-by: Gavin Shan gws...@linux.vnet.ibm.com
---
The patch introduces CONFIG_VFIO_PCI_EEH for more IOCTL commands
on VFIO PCI device support EEH funtionality for PCI devices that
are passed through from host to guest.
Signed-off-by: Gavin Shan gws...@linux.vnet.ibm.com
---
drivers/vfio/pci/Kconfig | 6 ++
1 file changed, 6 insertions(+)
The patch adds new IOCTL command VFIO_EEH_OP to VFIO PCI device
to support EEH functionality for PCI devices, which have been
passed from host to guest via VFIO.
Signed-off-by: Gavin Shan gws...@linux.vnet.ibm.com
---
arch/powerpc/platforms/powernv/Makefile | 1 +
If we detects frozen state on PE that has been passed to guest, we
needn't handle it. Instead, we rely on the guest to detect and recover
it. The patch avoid EEH event on the frozen passed PE so that the guest
can have chance to handle that.
Signed-off-by: Gavin Shan gws...@linux.vnet.ibm.com
---
The series of patches intends to support EEH for PCI devices, which are
passed through to PowerKVM based guest via VFIO. The implementation is
straightforward based on the issues or problems we have to resolve to
support EEH for PowerKVM based guest.
- Emulation for EEH RTAS requests. All EEH
On Mon, May 19, 2014 at 03:09:07PM +0200, Alexander Graf wrote:
On 17.05.14 08:20, Paul Mackerras wrote:
On Tue, Apr 29, 2014 at 06:17:42PM +0200, Alexander Graf wrote:
POWER8 introduces transactional memory which brings along a number of new
registers and MSR bits.
Implementing all of
On 20.05.14 10:28, Gavin Shan wrote:
On Mon, May 19, 2014 at 06:37:24PM -0600, Alex Williamson wrote:
On Tue, 2014-05-20 at 10:22 +1000, Gavin Shan wrote:
On Mon, May 19, 2014 at 04:33:10PM -0600, Alex Williamson wrote:
On Wed, 2014-05-14 at 14:11 +1000, Gavin Shan wrote:
The patch adds new
On 20.05.14 10:30, Gavin Shan wrote:
The patch adds new IOCTL command VFIO_EEH_OP to VFIO PCI device
to support EEH functionality for PCI devices, which have been
passed from host to guest via VFIO.
Signed-off-by: Gavin Shan gws...@linux.vnet.ibm.com
---
On 20.05.14 10:30, Gavin Shan wrote:
If we detects frozen state on PE that has been passed to guest, we
needn't handle it. Instead, we rely on the guest to detect and recover
it. The patch avoid EEH event on the frozen passed PE so that the guest
can have chance to handle that.
Signed-off-by:
On Tue, May 20, 2014 at 01:28:40PM +0200, Alexander Graf wrote:
On 20.05.14 13:21, Alexander Graf wrote:
On 20.05.14 10:30, Gavin Shan wrote:
The patch adds new IOCTL command VFIO_EEH_OP to VFIO PCI device
to support EEH functionality for PCI devices, which have been
passed from host to guest
On 20.05.14 13:40, Gavin Shan wrote:
On Tue, May 20, 2014 at 01:28:40PM +0200, Alexander Graf wrote:
On 20.05.14 13:21, Alexander Graf wrote:
On 20.05.14 10:30, Gavin Shan wrote:
The patch adds new IOCTL command VFIO_EEH_OP to VFIO PCI device
to support EEH functionality for PCI devices,
On 20.05.2014, at 11:59, Paul Mackerras pau...@samba.org wrote:
On Mon, May 19, 2014 at 03:09:07PM +0200, Alexander Graf wrote:
On 17.05.14 08:20, Paul Mackerras wrote:
On Tue, Apr 29, 2014 at 06:17:42PM +0200, Alexander Graf wrote:
POWER8 introduces transactional memory which brings along
On Tue, May 20, 2014 at 01:25:11PM +0200, Alexander Graf wrote:
On 20.05.14 10:30, Gavin Shan wrote:
If we detects frozen state on PE that has been passed to guest, we
needn't handle it. Instead, we rely on the guest to detect and recover
it. The patch avoid EEH event on the frozen passed PE so
On 20.05.14 13:56, Gavin Shan wrote:
On Tue, May 20, 2014 at 01:25:11PM +0200, Alexander Graf wrote:
On 20.05.14 10:30, Gavin Shan wrote:
If we detects frozen state on PE that has been passed to guest, we
needn't handle it. Instead, we rely on the guest to detect and recover
it. The patch
On Tue, May 20, 2014 at 01:44:21PM +0200, Alexander Graf wrote:
On 20.05.14 13:40, Gavin Shan wrote:
On Tue, May 20, 2014 at 01:28:40PM +0200, Alexander Graf wrote:
On 20.05.14 13:21, Alexander Graf wrote:
On 20.05.14 10:30, Gavin Shan wrote:
The patch adds new IOCTL command VFIO_EEH_OP to VFIO
On 20.05.14 14:21, Gavin Shan wrote:
On Tue, May 20, 2014 at 01:44:21PM +0200, Alexander Graf wrote:
On 20.05.14 13:40, Gavin Shan wrote:
On Tue, May 20, 2014 at 01:28:40PM +0200, Alexander Graf wrote:
On 20.05.14 13:21, Alexander Graf wrote:
On 20.05.14 10:30, Gavin Shan wrote:
The patch
On Tue, May 20, 2014 at 02:25:45PM +0200, Alexander Graf wrote:
On 20.05.14 14:21, Gavin Shan wrote:
On Tue, May 20, 2014 at 01:44:21PM +0200, Alexander Graf wrote:
On 20.05.14 13:40, Gavin Shan wrote:
On Tue, May 20, 2014 at 01:28:40PM +0200, Alexander Graf wrote:
On 20.05.14 13:21, Alexander
On Tue, May 20, 2014 at 02:14:56PM +0200, Alexander Graf wrote:
On 20.05.14 13:56, Gavin Shan wrote:
On Tue, May 20, 2014 at 01:25:11PM +0200, Alexander Graf wrote:
On 20.05.14 10:30, Gavin Shan wrote:
If we detects frozen state on PE that has been passed to guest, we
needn't handle it. Instead,
On 20.05.14 14:45, Gavin Shan wrote:
On Tue, May 20, 2014 at 02:14:56PM +0200, Alexander Graf wrote:
On 20.05.14 13:56, Gavin Shan wrote:
On Tue, May 20, 2014 at 01:25:11PM +0200, Alexander Graf wrote:
On 20.05.14 10:30, Gavin Shan wrote:
If we detects frozen state on PE that has been
On Tue, 2014-05-20 at 21:56 +1000, Gavin Shan wrote:
.../...
I think what you want is an irqfd that the in-kernel eeh code
notifies when it sees a failure. When such an fd exists, the kernel
skips its own error handling.
Yeah, it's a good idea and something for me to improve in phase
On Tue, 2014-05-20 at 15:49 +0200, Alexander Graf wrote:
Instead of
if (passed_flag)
return;
you would do
if (trigger_irqfd) {
trigger_irqfd();
return;
}
which would be a much nicer, generic interface.
But that's not how PAPR works.
Cheers,
Ben.
--
To
On Tue, 2014-05-20 at 15:49 +0200, Alexander Graf wrote:
So how about we just implement this whole thing properly as irqfd?
Whether QEMU can actually do anything with the interrupt is a different
question - we can leave it be for now. But we could model all the code
with the assumption that
On Tue, 2014-05-20 at 14:25 +0200, Alexander Graf wrote:
- Move eeh-vfio.c to drivers/vfio/pci/
- From eeh-vfio.c, dereference arch/powerpc/kernel/eeh.c::eeh_ops,
which
is arch/powerpc/plaforms/powernv/eeh-powernv.c::powernv_eeh_ops.
Call
Hrm, I think it'd be nicer to just export
On Tue, 2014-05-20 at 22:39 +1000, Gavin Shan wrote:
Yeah. How about this? :-)
- Move eeh-vfio.c to drivers/vfio/pci/
- From eeh-vfio.c, dereference arch/powerpc/kernel/eeh.c::eeh_ops, which
is arch/powerpc/plaforms/powernv/eeh-powernv.c::powernv_eeh_ops. Call
Hrm, I think it'd be
On Wed, May 21, 2014 at 10:23:52AM +1000, Benjamin Herrenschmidt wrote:
On Tue, 2014-05-20 at 22:39 +1000, Gavin Shan wrote:
Yeah. How about this? :-)
- Move eeh-vfio.c to drivers/vfio/pci/
- From eeh-vfio.c, dereference arch/powerpc/kernel/eeh.c::eeh_ops, which
is
On Wed, May 21, 2014 at 10:12:11AM +1000, Benjamin Herrenschmidt wrote:
On Tue, 2014-05-20 at 21:56 +1000, Gavin Shan wrote:
.../...
I think what you want is an irqfd that the in-kernel eeh code
notifies when it sees a failure. When such an fd exists, the kernel
skips its own error handling.
The series of patches intends to support EEH for PCI devices, which are
passed through to PowerKVM based guest via VFIO. The implementation is
straightforward based on the issues or problems we have to resolve to
support EEH for PowerKVM based guest.
- Emulation for EEH RTAS requests. All EEH
The patch adds new IOCTL command VFIO_EEH_OP to VFIO PCI device
to support EEH functionality for PCI devices, which have been
passed from host to guest via VFIO.
Signed-off-by: Gavin Shan gws...@linux.vnet.ibm.com
---
Documentation/vfio.txt | 6 +-
arch/powerpc/include/asm/eeh.h | 10
The patch introduces new flags for EEH device and PE to indicate
that the device or PE has been passed through to guest. In turn,
we will deliver EEH errors to guest for further handling, which
will be done in subsequent patches.
Signed-off-by: Gavin Shan gws...@linux.vnet.ibm.com
---
The patch introduces CONFIG_VFIO_PCI_EEH for more IOCTL commands
on VFIO PCI device support EEH funtionality for PCI devices that
are passed through from host to guest.
Signed-off-by: Gavin Shan gws...@linux.vnet.ibm.com
---
drivers/vfio/pci/Kconfig | 6 ++
1 file changed, 6 insertions(+)
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