From: Benjamin Herrenschmidt <benh@kernel.crashing.org>
To: Alexander Graf <agraf@suse.de>
Cc: "aik@ozlabs.ru" <aik@ozlabs.ru>,
Gavin Shan <gwshan@linux.vnet.ibm.com>,
"kvm-ppc@vger.kernel.org" <kvm-ppc@vger.kernel.org>,
"alex.williamson@redhat.com" <alex.williamson@redhat.com>,
Paul Mackerras <paulus@samba.org>,
"qiudayu@linux.vnet.ibm.com" <qiudayu@linux.vnet.ibm.com>,
"linuxppc-dev@lists.ozlabs.org" <linuxppc-dev@lists.ozlabs.org>
Subject: Re: [PATCH 4/4] powerpc/eeh: Avoid event on passed PE
Date: Tue, 03 Jun 2014 17:52:19 +1000 [thread overview]
Message-ID: <1401781939.3247.11.camel@pasglop> (raw)
In-Reply-To: <5C4E374F-0BE1-4BE3-991C-E6BD64E90E6A@suse.de>
On Tue, 2014-06-03 at 09:45 +0200, Alexander Graf wrote:
> For EEH it could as well be a dumb eventfd - really just a side
> channel that can tell user space that something happened
> asynchronously :).
Which the host kernel may have no way to detect without actively poking
at the device (fences in powernv or anything in PAPR host) and the only
user of this for now has no use for.
I insist don't bother.
Cheers,
Ben.
prev parent reply other threads:[~2014-06-03 7:52 UTC|newest]
Thread overview: 32+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-05-20 8:30 [PATCH RFCv4 0/4] EEH Support for VFIO PCI device Gavin Shan
2014-05-20 8:30 ` [PATCH 1/4] drivers/vfio: Introduce CONFIG_VFIO_PCI_EEH Gavin Shan
2014-05-20 8:30 ` [PATCH 2/4] powerpc/eeh: Flags for passed device and PE Gavin Shan
2014-05-20 8:30 ` [PATCH 3/4] drivers/vfio: New IOCTL command VFIO_EEH_INFO Gavin Shan
2014-05-20 11:21 ` Alexander Graf
2014-05-20 11:28 ` Alexander Graf
2014-05-20 11:40 ` Gavin Shan
2014-05-20 11:44 ` Alexander Graf
2014-05-20 12:21 ` Gavin Shan
2014-05-20 12:25 ` Alexander Graf
2014-05-20 12:39 ` Gavin Shan
2014-05-21 0:23 ` Benjamin Herrenschmidt
2014-05-21 4:39 ` Gavin Shan
2014-05-21 6:23 ` Alexander Graf
2014-05-21 7:24 ` Benjamin Herrenschmidt
2014-05-21 10:48 ` Gavin Shan
2014-05-21 0:21 ` Benjamin Herrenschmidt
2014-05-20 8:30 ` [PATCH 4/4] powerpc/eeh: Avoid event on passed PE Gavin Shan
2014-05-20 11:25 ` Alexander Graf
2014-05-20 11:56 ` Gavin Shan
2014-05-20 12:14 ` Alexander Graf
2014-05-20 12:45 ` Gavin Shan
2014-05-20 13:49 ` Alexander Graf
2014-05-21 0:13 ` Benjamin Herrenschmidt
2014-05-21 6:16 ` Alexander Graf
2014-05-21 0:19 ` Benjamin Herrenschmidt
2014-05-21 6:20 ` Alexander Graf
2014-05-21 0:12 ` Benjamin Herrenschmidt
2014-05-21 4:41 ` Gavin Shan
2014-06-03 5:54 ` Paul Mackerras
2014-06-03 7:45 ` Alexander Graf
2014-06-03 7:52 ` Benjamin Herrenschmidt [this message]
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