From: Alexander Graf <agraf@suse.de>
To: qemu-devel@nongnu.org
Cc: Carsten Otte <cotte@de.ibm.com>, Aurelien Jarno <aurelien@aurel32.net>
Subject: [Qemu-devel] [PATCH 00/13] S390x KVM support v4
Date: Tue, 24 Nov 2009 18:29:28 +0100 [thread overview]
Message-ID: <1259083781-14642-1-git-send-email-agraf@suse.de> (raw)
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 :-).
##### WARNING #####
Apparently the qemu review process has scared off yet another developer for now.
So I'm sending this patchset without relying on Uli's set but rather
implemented small stubs for TCG host and TCG guest support, so we can run
on KVM. He promised me to send it again "soon" - whenever that is.
These stubs don't serve any purpose but to get KVM running, so you get no x86
on S390X or S390X on x86 for now!
##################
v1 -> v2:
- use new kvm_run variables
- use DO_UPCAST
- add bridge device for "info qtree"
v2 -> v3:
- move memory allocation logic to qemu_ram_alloc
v3 -> v4:
- minor bugfixes
- adjust to more recent qdev nic code
- zipl loader
- include fake emulation series
Alexander Graf (13):
S/390 CPU fake emulation
S/390 host/target build system support
S/390 fake TCG implementation
Add KVM support for S390x
Allocate physical memory in low virtual address space
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
Add zipl bootloader interpreter
Add S390 maintainer information
MAINTAINERS | 3 +
Makefile.target | 2 +
configure | 24 ++-
cpu-exec.c | 2 +
dyngen-exec.h | 2 +-
exec.c | 6 +
gdbstub.c | 52 ++++
hw/s390-virtio-bus.c | 385 ++++++++++++++++++++++++++++++
hw/s390-virtio-bus.h | 65 +++++
hw/s390-virtio.c | 248 ++++++++++++++++++++
hw/s390-zipl.c | 233 +++++++++++++++++++
hw/virtio-console.c | 7 +
hw/virtio-console.h | 2 +
target-s390x/cpu.h | 269 +++++++++++++++++++++
target-s390x/exec.h | 56 +++++
target-s390x/helper.c | 84 +++++++
target-s390x/kvm.c | 463 +++++++++++++++++++++++++++++++++++++
target-s390x/machine.c | 30 +++
target-s390x/op_helper.c | 74 ++++++
target-s390x/translate.c | 57 +++++
tcg/s390/tcg-target.c | 103 ++++++++
tcg/s390/tcg-target.h | 48 ++++
vl.c | 26 ++
23 files changed, 2233 insertions(+), 8 deletions(-)
create mode 100644 default-configs/s390x-softmmu.mak
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 hw/s390-zipl.c
create mode 100644 target-s390x/cpu.h
create mode 100644 target-s390x/exec.h
create mode 100644 target-s390x/helper.c
create mode 100644 target-s390x/kvm.c
create mode 100644 target-s390x/machine.c
create mode 100644 target-s390x/op_helper.c
create mode 100644 target-s390x/translate.c
create mode 100644 tcg/s390/tcg-target.c
create mode 100644 tcg/s390/tcg-target.h
next reply other threads:[~2009-11-24 17:29 UTC|newest]
Thread overview: 40+ messages / expand[flat|nested] mbox.gz Atom feed top
2009-11-24 17:29 Alexander Graf [this message]
2009-11-24 17:29 ` [Qemu-devel] [PATCH 01/13] S/390 CPU fake emulation Alexander Graf
2009-11-24 17:29 ` [Qemu-devel] [PATCH 02/13] S/390 host/target build system support Alexander Graf
2009-11-24 17:29 ` [Qemu-devel] [PATCH 03/13] S/390 fake TCG implementation Alexander Graf
2009-11-24 17:29 ` [Qemu-devel] [PATCH 04/13] Add KVM support for S390x Alexander Graf
2009-11-24 17:29 ` [Qemu-devel] [PATCH 05/13] Allocate physical memory in low virtual address space Alexander Graf
2009-11-24 17:29 ` [Qemu-devel] [PATCH 06/13] Add support for S390x system emulation Alexander Graf
2009-11-25 11:46 ` Paul Brook
2009-11-25 11:47 ` Alexander Graf
2009-11-24 17:29 ` [Qemu-devel] [PATCH 07/13] Add S390x virtio machine bus Alexander Graf
2009-11-24 17:29 ` [Qemu-devel] [PATCH 08/13] Add S390x virtio machine description Alexander Graf
2009-11-24 17:29 ` [Qemu-devel] [PATCH 09/13] S390 GDB stub Alexander Graf
2009-11-24 17:29 ` [Qemu-devel] [PATCH 10/13] Implement early printk in virtio-console Alexander Graf
2009-11-24 18:55 ` Anthony Liguori
2009-11-24 18:56 ` Alexander Graf
2009-11-24 19:25 ` Anthony Liguori
2009-11-24 19:27 ` Alexander Graf
2009-11-24 19:30 ` Anthony Liguori
2009-11-24 19:32 ` Alexander Graf
2009-11-24 19:48 ` Anthony Liguori
2009-11-24 19:58 ` Alexander Graf
2009-11-25 10:00 ` Carsten Otte
2009-11-25 13:14 ` Arnd Bergmann
2009-11-25 13:47 ` Carsten Otte
2009-11-25 9:03 ` Carsten Otte
2009-11-24 17:29 ` [Qemu-devel] [PATCH 11/13] Set default console to virtio on S390x Alexander Graf
2009-11-24 17:29 ` [Qemu-devel] [PATCH 12/13] Add zipl bootloader interpreter Alexander Graf
2009-11-24 18:53 ` Anthony Liguori
2009-11-24 18:56 ` Alexander Graf
2009-11-24 19:26 ` Anthony Liguori
2009-11-24 19:29 ` Alexander Graf
2009-11-24 20:39 ` Mark Williamson
2009-11-24 21:10 ` Anthony Liguori
2009-11-25 8:35 ` Hannes Reinecke
2009-11-25 8:38 ` Alexander Graf
2009-11-25 10:09 ` Carsten Otte
2009-11-25 10:02 ` Carsten Otte
2009-11-25 9:58 ` Carsten Otte
2009-11-25 8:59 ` Carsten Otte
2009-11-24 17:29 ` [Qemu-devel] [PATCH 13/13] Add S390 maintainer information Alexander Graf
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