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[Qemu-devel] [PATCH 0/9] S390x KVM support v2
From: |
Alexander Graf |
Subject: |
[Qemu-devel] [PATCH 0/9] S390x KVM support v2 |
Date: |
Wed, 21 Oct 2009 11:24:57 +0200 |
While S390x was one of the first targets that were supported by KVM it always
lacked qemu system emulation support.
In order to change that sad fact, I figured I'd just take on the task myself,
taking kuli (http://www.ibm.com/developerworks/linux/linux390/kuli.html),
Documentation/s390/kvm.txt and lguest as starting points to write a clean,
qemu'ish S390x Virtio machine emulation.
So now you can run Linux VMs on Linux on z/VM on LPAR on zSeries!
This is the resulting code. Please comment on things you like and also on the
ones you don't :-).
The patchset is based on Uli's S390x userspace emulation patches. There's not
really that much shared functionality, but I didn't want to reimplement the
configure wheels. So make sure to have his patches applied first.
Please only run S390x system virtualization using io threads. S390x has very
few intercepts and even less that actually reach userspace. So you'll end up
with a non-responsive VM without a dedicated IO thread.
Use: $ ./configure --target-list=s390x-softmmu --enable-io-thread
Currently only -kernel, -initrd and friends work. Booting from a real dasd
device is not supported.
Also to actually run this code you need a patch for an ugly bug in the kernel
module that Carsten sent a patch to on the ML.
I verified that the userspace actually works on a 2.6.27 (SLES11) kernel, so
if it doesn't work on current git, please tell me! I'm too afraid that I might
end up in a 3270 terminal to update the kernel on my z/VM instance :-).
v1 -> v2:
- use new kvm_run variables
- use DO_UPCAST
- add bridge device for "info qtree"
Alexander Graf (9):
Export function for VA defined ram allocation
Add KVM support for S390x
Add support for S390x system emulation
Add S390x virtio machine bus
Add S390x virtio machine description
S390 GDB stub
Implement early printk in virtio-console
Set default console to virtio on S390x
Move mp_state to CPU_COMMON
Makefile.target | 2 +
configure | 4 +-
cpu-common.h | 1 +
cpu-defs.h | 1 +
exec.c | 15 ++-
gdbstub.c | 52 ++++++
hw/s390-virtio-bus.c | 384 ++++++++++++++++++++++++++++++++++++++
hw/s390-virtio-bus.h | 64 +++++++
hw/s390-virtio.c | 244 ++++++++++++++++++++++++
hw/virtio-console.c | 7 +
hw/virtio-console.h | 2 +
target-i386/cpu.h | 1 -
target-s390x/cpu.h | 86 +++++++++-
target-s390x/exec.h | 5 +
target-s390x/helper.c | 26 +++-
target-s390x/kvm.c | 457 ++++++++++++++++++++++++++++++++++++++++++++++
target-s390x/machine.c | 30 +++
target-s390x/op_helper.c | 53 ++++++
vl.c | 26 +++
19 files changed, 1452 insertions(+), 8 deletions(-)
create mode 100644 hw/s390-virtio-bus.c
create mode 100644 hw/s390-virtio-bus.h
create mode 100644 hw/s390-virtio.c
create mode 100644 target-s390x/kvm.c
create mode 100644 target-s390x/machine.c
- [Qemu-devel] [PATCH 0/9] S390x KVM support v2,
Alexander Graf <=
- [Qemu-devel] [PATCH 1/9] Export function for VA defined ram allocation, Alexander Graf, 2009/10/21
- [Qemu-devel] [PATCH 2/9] Add KVM support for S390x, Alexander Graf, 2009/10/21
- [Qemu-devel] [PATCH 3/9] Add support for S390x system emulation, Alexander Graf, 2009/10/21
- [Qemu-devel] [PATCH 4/9] Add S390x virtio machine bus, Alexander Graf, 2009/10/21
- [Qemu-devel] [PATCH 5/9] Add S390x virtio machine description, Alexander Graf, 2009/10/21
- [Qemu-devel] [PATCH 6/9] S390 GDB stub, Alexander Graf, 2009/10/21
- [Qemu-devel] [PATCH 7/9] Implement early printk in virtio-console, Alexander Graf, 2009/10/21
- [Qemu-devel] [PATCH 8/9] Set default console to virtio on S390x, Alexander Graf, 2009/10/21
- [Qemu-devel] [PATCH 9/9] Move mp_state to CPU_COMMON, Alexander Graf, 2009/10/21
Re: [Qemu-devel] [PATCH 1/9] Export function for VA defined ram allocation, Anthony Liguori, 2009/10/21