From: Cornelia Huck <cohuck@redhat.com>
To: Dong Jia Shi <bjsdjshi@linux.ibm.com>,
Halil Pasic <pasic@linux.ibm.com>,
Pierre Morel <pmorel@linux.ibm.com>
Cc: linux-s390@vger.kernel.org, kvm@vger.kernel.org,
linux-kernel@vger.kernel.org, qemu-s390x@nongnu.org,
qemu-devel@nongnu.org, Cornelia Huck <cohuck@redhat.com>
Subject: [Qemu-devel] [PATCH RFC 0/2] vfio-ccw: exploit halt/clear subchannel support
Date: Wed, 9 May 2018 17:49:08 +0200 [thread overview]
Message-ID: <20180509154910.23578-1-cohuck@redhat.com> (raw)
Hi,
this is the QEMU companion patchset to "vfio-ccw: support for {halt,clear}
subchannel", but is interface-wise independent of it.
With an old host kernel, things should work as before. With a new host
kernel, guest halt/clear requests should get passed through to the host.
I tested this with a hacked-up guest kernel to issue clears on demand.
Cornelia Huck (2):
vfio-ccw: forward halt/clear to device if supported
s390/css: add some tracing for pass-through handling
hw/s390x/css.c | 38 ++++++++++++++++++++++++++++++++++----
hw/s390x/trace-events | 4 ++++
hw/vfio/ccw.c | 11 +++++++++--
include/hw/s390x/css.h | 10 +++++++---
4 files changed, 54 insertions(+), 9 deletions(-)
--
2.14.3
next reply other threads:[~2018-05-09 15:49 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-05-09 15:49 Cornelia Huck [this message]
2018-05-09 15:49 ` [Qemu-devel] [PATCH RFC 1/2] vfio-ccw: forward halt/clear to device if supported Cornelia Huck
2018-05-11 9:53 ` Pierre Morel
2018-05-15 16:01 ` Cornelia Huck
2018-05-16 13:53 ` Pierre Morel
2018-05-16 15:52 ` Cornelia Huck
2018-05-09 15:49 ` [Qemu-devel] [PATCH RFC 2/2] s390/css: add some tracing for pass-through handling Cornelia Huck
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