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[Qemu-devel] [RFC PATCH 0/7] s390: virtual css host support.
From: |
Cornelia Huck |
Subject: |
[Qemu-devel] [RFC PATCH 0/7] s390: virtual css host support. |
Date: |
Tue, 7 Aug 2012 16:52:12 +0200 |
Hi,
the following patches implement support for a virtual channel
subsystem in the host (virtio-ccw on the host is handled by
user space).
Patches 1 and 2 add support for injecting I/O interrupts and
(some) machine checks via the already existing mechanisms.
The most important parts are those handling interrupt delivery.
Patch 3 prepares for in-kernel handling of I/O instructions.
Patches 4 and 5 make it possible for kvm to re-use some css-related
definitions already used by the s390 common I/O layer.
Patch 6 introduces the interface to dynamically enable capabilities
already in use on ppc to s390.
Patch 7 (the big one) adds in-kernel implementations of most I/O
instructions (leaving out some facilities that were too complex and
are not currently needed; these can convieniently be marked as
not supported). Some operations (which are executed asynchronically
on real hardware) are outsourced to user space. This in-kernel
channel subsystem support can be enabled by user space via a new
capability.
Cornelia Huck (7):
s390/kvm: Support for I/O interrupts.
s390/kvm: Add support for machine checks.
s390/kvm: In-kernel handling of I/O instructions.
s390: Move css limits from drivers/s390/cio/ to include/asm/.
s390: Make some css-related structures usable by non-cio code.
s390/kvm: Base infrastructure for enabling capabilities.
s390/kvm: In-kernel channel subsystem support.
Documentation/virtual/kvm/api.txt | 129 +++++-
arch/s390/include/asm/cio.h | 2 +
arch/s390/include/asm/kvm_host.h | 58 +++
arch/s390/include/asm/orb.h | 69 +++
arch/s390/include/asm/schib.h | 52 +++
arch/s390/kvm/Makefile | 2 +-
arch/s390/kvm/css.c | 945 ++++++++++++++++++++++++++++++++++++++
arch/s390/kvm/intercept.c | 22 +-
arch/s390/kvm/interrupt.c | 337 ++++++++++++--
arch/s390/kvm/ioinst.c | 797 ++++++++++++++++++++++++++++++++
arch/s390/kvm/kvm-s390.c | 61 +++
arch/s390/kvm/kvm-s390.h | 42 ++
arch/s390/kvm/priv.c | 194 +++++++-
arch/s390/kvm/trace-s390.h | 73 ++-
arch/s390/kvm/trace.h | 22 +
drivers/s390/cio/cio.h | 46 +-
drivers/s390/cio/css.h | 3 -
drivers/s390/cio/io_sch.h | 2 +-
drivers/s390/cio/ioasm.h | 2 +-
drivers/s390/cio/orb.h | 67 ---
include/linux/kvm.h | 60 +++
include/trace/events/kvm.h | 2 +-
virt/kvm/kvm_main.c | 3 +-
23 files changed, 2816 insertions(+), 174 deletions(-)
create mode 100644 arch/s390/include/asm/orb.h
create mode 100644 arch/s390/include/asm/schib.h
create mode 100644 arch/s390/kvm/css.c
create mode 100644 arch/s390/kvm/ioinst.c
delete mode 100644 drivers/s390/cio/orb.h
--
1.7.11.4
- [Qemu-devel] [RFC PATCH 0/7] s390: virtual css host support.,
Cornelia Huck <=
- [Qemu-devel] [PATCH 2/7] s390/kvm: Add support for machine checks., Cornelia Huck, 2012/08/07
- [Qemu-devel] [PATCH 3/7] s390/kvm: In-kernel handling of I/O instructions., Cornelia Huck, 2012/08/07
- [Qemu-devel] [PATCH 6/7] s390/kvm: Base infrastructure for enabling capabilities., Cornelia Huck, 2012/08/07
- [Qemu-devel] [PATCH 5/7] s390: Make some css-related structures usable by non-cio code., Cornelia Huck, 2012/08/07
- [Qemu-devel] [PATCH 4/7] s390: Move css limits from drivers/s390/cio/ to include/asm/., Cornelia Huck, 2012/08/07
- [Qemu-devel] [PATCH 1/7] s390/kvm: Support for I/O interrupts., Cornelia Huck, 2012/08/07
- [Qemu-devel] [PATCH 7/7] s390/kvm: In-kernel channel subsystem support., Cornelia Huck, 2012/08/07