...@de.ibm.com
Signed-off-by: Christian Borntraeger borntrae...@de.ibm.com
---
arch/s390/kvm/priv.c | 33 +
1 file changed, 33 insertions(+)
diff --git a/arch/s390/kvm/priv.c b/arch/s390/kvm/priv.c
index 6f95994..2440602 100644
--- a/arch/s390/kvm/priv.c
+++ b/arch
From: Thomas Huth th...@linux.vnet.ibm.com
Added a separate helper function that translates guest real addresses
to guest absolute addresses by applying the prefix of the guest CPU.
Signed-off-by: Thomas Huth th...@linux.vnet.ibm.com
Signed-off-by: Christian Borntraeger borntrae...@de.ibm.com
and the other one handles the code that runs
afterwards.
Signed-off-by: Thomas Huth th...@linux.vnet.ibm.com
Signed-off-by: Christian Borntraeger borntrae...@de.ibm.com
---
arch/s390/kvm/kvm-s390.c | 54 +---
1 file changed, 37 insertions(+), 17 deletions
ioctl, which can be called out-of-band and needs a separate lock).
Signed-off-by: Thomas Huth th...@linux.vnet.ibm.com
Acked-by: Christian Borntraeger borntrae...@de.ibm.com
---
arch/s390/kvm/diag.c | 4 +---
arch/s390/kvm/interrupt.c | 3 +++
arch/s390/kvm/kvm-s390.c | 12
3
On 12/09/13 10:59, Paolo Bonzini wrote:
Il 12/09/2013 10:33, Christian Borntraeger ha scritto:
vcpu-arch.sie_block-icptcode = 0;
-VCPU_EVENT(vcpu, 6, entering sie flags %x,
- atomic_read(vcpu-arch.sie_block-cpuflags));
-trace_kvm_s390_sie_enter(vcpu
On 06/09/13 14:19, Jens Freimann wrote:
Add symbols required for the s390 floating interrupt controller (flic)
Signed-off-by: Jens Freimann jf...@linux.vnet.ibm.com
As Peter said, this should come via a sync, but you already mentioned that
in your cover-letter. I will Ack the kernel patch and
...@linux.vnet.ibm.com
Reviewed-by: Cornelia Huck cornelia.h...@de.ibm.com
Acked-by: Christian Borntraeger borntrae...@de.ibm.com
---
arch/s390/include/asm/kvm_host.h | 34 +-
include/uapi/linux/kvm.h | 63
2 files changed
-by: Jens Freimann jf...@linux.vnet.ibm.com
Reviewed-by: Cornelia Huck cornelia.h...@de.ibm.com
Acked-by: Christian Borntraeger borntrae...@de.ibm.com
---
Documentation/virtual/kvm/devices/s390_flic.txt | 36 +++
arch/s390/include/asm/kvm_host.h| 1 +
arch/s390/include/uapi/asm
into the kernel (used for migration)
Signed-off-by: Jens Freimann jf...@linux.vnet.ibm.com
Reviewed-by: Thomas Huth th...@linux.vnet.ibm.com
Acked-by: Christian Borntraeger borntrae...@de.ibm.com
---
default-configs/s390x-softmmu.mak | 1 +
hw/intc/Makefile.objs | 1
On 06/09/13 14:19, Jens Freimann wrote: This series adds a kvm_device that
acts as a irq controller for floating
interrupts. As a first step it implements functionality to retrieve and
inject
interrupts for the purpose of migration and for hardening the reset code by
allowing user space to
From: Martin Schwidefsky schwidef...@de.ibm.com
Improve the code to upgrade the standard 2K page tables to 4K page tables
with PGSTEs to allow the operation to happen when the program is already
multi-threaded.
Signed-off-by: Martin Schwidefsky schwidef...@de.ibm.com
Signed-off-by: Christian
-by: Christian Borntraeger borntrae...@de.ibm.com
CC: sta...@vger.kernel.org
---
arch/s390/kvm/kvm-s390.c | 21 ++---
1 file changed, 14 insertions(+), 7 deletions(-)
diff --git a/arch/s390/kvm/kvm-s390.c b/arch/s390/kvm/kvm-s390.c
index a3d797b..39894aa 100644
--- a/arch/s390/kvm/kvm
Gleb, Paolo,
here are some fixes and cleanups for KVM/s390.
The first two patches
KVM: s390: move kvm_guest_enter,exit closer to sie
and
KVM: s390: fix pfmf non-quiescing control handling
should go into 3.11. Everything else looks more like 3.12.
Please apply.
Christian
Dominik Dingel (2):
-setting facility installed.
Signed-off-by: Heiko Carstens heiko.carst...@de.ibm.com
Reviewed-by: Thomas Huth th...@linux.vnet.ibm.com
Signed-off-by: Christian Borntraeger borntrae...@de.ibm.com
---
arch/s390/kvm/priv.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/arch/s390/kvm
values (4TB vs 8PB)
dependent on the existance of the fourth page table level, create
a new define 'TASK_MAX_SIZE' for (1UL 53).
Signed-off-by: Martin Schwidefsky schwidef...@de.ibm.com
Signed-off-by: Christian Borntraeger borntrae...@de.ibm.com
---
arch/s390/include/asm/processor.h | 2 ++
arch
KVM_HVA_ERR_BAD defines.
Signed-off-by: Dominik Dingel din...@linux.vnet.ibm.com
Signed-off-by: Christian Borntraeger borntrae...@de.ibm.com
---
arch/s390/include/asm/kvm_host.h | 8
include/linux/kvm_host.h | 8
2 files changed, 16 insertions(+)
diff --git a/arch/s390/include
From: Thomas Huth th...@linux.vnet.ibm.com
sparse complained about the missing UL postfix for long constants.
Signed-off-by: Thomas Huth th...@linux.vnet.ibm.com
Acked-by: Cornelia Huck cornelia.h...@de.ibm.com
Signed-off-by: Christian Borntraeger borntrae...@de.ibm.com
---
arch/s390/kvm/priv.c
test for virtual facilites has been added
as well.
Signed-off-by: Michael Mueller m...@linux.vnet.ibm.com
Signed-off-by: Christian Borntraeger borntrae...@de.ibm.com
---
arch/s390/kvm/kvm-s390.c | 23 +++
arch/s390/kvm/kvm-s390.h | 3 +++
arch/s390/kvm/priv.c | 11
From: Thomas Huth th...@linux.vnet.ibm.com
Introduced a helper function for setting the CC in the
guest PSW to improve the readability of the code.
Signed-off-by: Thomas Huth th...@linux.vnet.ibm.com
Signed-off-by: Christian Borntraeger borntrae...@de.ibm.com
---
arch/s390/kvm/kvm-s390.h | 7
On 25/07/13 10:54, Martin Schwidefsky wrote:
v1-v2:
- found a way to simplify the common code patch
Linux on s390 as a guest under z/VM has been using the guest page
hinting interface (alias collaborative memory management) for a long
time. The full version with volatile states has been
one for swap in.
[ Martin Schwidefsky: patch reordering and simplification ]
Signed-off-by: Konstantin Weitz konstantin.we...@gmail.com
Signed-off-by: Martin Schwidefsky schwidef...@de.ibm.com
Reviewed-by: Christian Borntraeger borntrae...@de.ibm.com
---
include/asm-generic/pgtable.h
Borntraeger borntrae...@de.ibm.com
Tested-by: Christian Borntraeger borntrae...@de.ibm.com
---
arch/s390/include/asm/kvm_host.h |5 ++-
arch/s390/include/asm/pgtable.h | 24
arch/s390/kvm/kvm-s390.c | 25 +
arch/s390/kvm/kvm-s390.h |2
On 23/07/13 08:33, Juan Quintela wrote:
Hi
Please, send any topic that you are interested in covering.
- soft reset and other reset variants. What is the right way to go?
(e.g. on s390 there are several reset variants that reset a defined subset of
the
system. This can be triggered by
On 18/07/13 15:57, Paolo Bonzini wrote:
Il 11/07/2013 12:41, Christian Borntraeger ha scritto:
On 11/07/13 11:04, Gleb Natapov wrote:
On Wed, Jul 10, 2013 at 02:59:55PM +0200, Dominik Dingel wrote:
This patch enables async page faults for s390 kvm guests.
It provides the userspace API
On 11/07/13 11:04, Gleb Natapov wrote:
On Wed, Jul 10, 2013 at 02:59:55PM +0200, Dominik Dingel wrote:
This patch enables async page faults for s390 kvm guests.
It provides the userspace API to enable, disable or get the status of this
feature. Also it includes the diagnose code, called by the
On 09/07/13 15:56, Dominik Dingel wrote:
This patch enables async page faults for s390 kvm guests.
It provides the userspace API to enable, disable or get the status of this
feature. Also it includes the diagnose code, called by the guest to enable
async page faults.
The async page faults
cornelia.h...@de.ibm.com
Acked-by: Christian Borntraeger borntrae...@de.ibm.com
---
drivers/s390/kvm/virtio_ccw.c | 11 +--
1 file changed, 9 insertions(+), 2 deletions(-)
diff --git a/drivers/s390/kvm/virtio_ccw.c b/drivers/s390/kvm/virtio_ccw.c
index 779dc51..d6c7aba 100644
On 10/07/13 12:39, Alexander Graf wrote:
On 09.07.2013, at 18:01, Christian Borntraeger wrote:
On 09/07/13 15:56, Dominik Dingel wrote:
By setting a Kconfig option, the architecture can control when
guest notifications will be presented by the apf backend.
So there is the default batch
the interface.
Signed-off-by: Cornelia Huck cornelia.h...@de.ibm.com
Acked-by: Christian Borntraeger borntrae...@de.ibm.com
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on a patch from Martin Schwidefsky.
For that we will obviously need Christian and Cornelia ACKs. Or it can
go in via S390 tree.
Signed-off-by: Dominik Dingel din...@linux.vnet.ibm.com
Acked-by: Christian Borntraeger borntrae...@de.ibm.com
Do you want me or Conny to apply these patches add
hand there is now the direct
mechanism, this will directly push the information to the guest.
Still the vcpu thread should call check_completion to cleanup leftovers,
that leaves most of the common code untouched.
Signed-off-by: Dominik Dingel din...@linux.vnet.ibm.com
Acked-by: Christian
On 28/05/13 11:00, Paolo Bonzini wrote:
Looks good for 3.10. Should I take this since Alex is on holiday, or
should I wait for him to come back?
let me refer to
http://permalink.gmane.org/gmane.comp.emulators.kvm.devel/104230
;-)
Christian
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.
So lets provide a bit in a private field of the sie control block
that acts as a gate keeper, after we claimed we are in SIE.
Please note that we do not reuse prog0c, since we want to access
that bit without atomic ops.
Signed-off-by: Christian Borntraeger borntrae...@de.ibm.com
Acked-by: Martin
Dont use the same bit as user referenced.
Signed-off-by: Christian Borntraeger borntrae...@de.ibm.com
---
arch/s390/include/asm/pgtable.h | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/arch/s390/include/asm/pgtable.h b/arch/s390/include/asm/pgtable.h
index 4105b82
better names as well.
Signed-off-by: Martin Schwidefsky schwidef...@de.ibm.com
Signed-off-by: Christian Borntraeger borntrae...@de.ibm.com
---
arch/s390/include/asm/pgtable.h | 82 -
arch/s390/mm/pgtable.c | 2 +-
2 files changed, 40 insertions
to kick guest
cpus out of SIE.
Signed-off-by: Christian Borntraeger borntrae...@de.ibm.com
Acked-by: Martin Schwidefsky schwidef...@de.ibm.com
---
arch/s390/include/asm/pgtable.h | 1 +
arch/s390/kvm/intercept.c | 39 ++--
arch/s390/kvm/kvm-s390.c| 49
become read-only (and only software writable) if the page is clean.
Since we loop in this code, the page would stay clean and, therefore,
be never writable again.
Let us just use fixup_user_fault, that guarantees to call handle_mm_fault.
Signed-off-by: Christian Borntraeger borntrae...@de.ibm.com
Lets track in a private bit if the sie control block is active.
We want to track this as closely as possible, so we also have to
instrument the interrupt and program check handler. Lets use the
existing HANDLE_SIE_INTERCEPT macro.
Signed-off-by: Christian Borntraeger borntrae...@de.ibm.com
Acked
From: Martin Schwidefsky schwidef...@de.ibm.com
The PSW can wrap if the guest has been running in the 24 bit or 31 bit
addressing mode. Use __rewind_psw to find the correct address.
Signed-off-by: Martin Schwidefsky schwidef...@de.ibm.com
Signed-off-by: Christian Borntraeger borntrae
on s390 we have seen very long
RCU stalls due to SIE not exiting on interrupts. Instead of returning
to SIE, we now force an exit into the kvm module, which then does the
guest exit/enter magic, fixing rcu.
The whole bunch is probably too complex for 3.10, so please queue for
3.11
Christian
Signed-off-by: Christian Borntraeger borntrae...@de.ibm.com
---
arch/s390/kernel/entry64.S | 76 --
arch/s390/kvm/kvm-s390.c | 4 ++-
2 files changed, 36 insertions(+), 44 deletions(-)
diff --git a/arch/s390/kernel/entry64.S b/arch/s390/kernel
: Christoffer Dall cd...@cs.columbia.edu
Acked-by: Xiantao Zhang xiantao.zh...@intel.com
Cc: Tony Luck tony.l...@intel.com
Cc: Fenghua Yu fenghua...@intel.com
Cc: Alexander Graf ag...@suse.de
Cc: Benjamin Herrenschmidt b...@kernel.crashing.org
Cc: Christian Borntraeger borntrae...@de.ibm.com
s390
state similar to user space
as an extended grace period, but this is not ready yet.
Signed-off-by: Christian Borntraeger borntrae...@de.ibm.com
Cc: Cornelia Huck cornelia.h...@de.ibm.com
Cc: Dipankar Sarma dipan...@in.ibm.com
Cc: Paul E. McKenney paul...@linux.vnet.ibm.com
Cc: Martin Schwidefsky
On 02/05/13 17:09, Paul E. McKenney wrote:
On Thu, May 02, 2013 at 10:09:52AM +0200, Christian Borntraeger wrote:
The SIE instruction is interruptible, so instead of having a guest
exit on a host interrupt we basically return to guest mode.
We have some logic in the interrupt handler to check
to -EFAULT.
Signed-off-by: Heiko Carstens heiko.carst...@de.ibm.com
Reviewed-by: Christian Borntraeger borntrae...@de.ibm.com
Signed-off-by: Martin Schwidefsky schwidef...@de.ibm.com
Signed-off-by: Christian Borntraeger borntrae...@de.ibm.com
---
arch/s390/kvm/gaccess.h | 7 +--
1 file
address whithout the chance of running into an out-of-memory
situation.
Also make it more explicit that for -EFAULT we won't find a vma.
Signed-off-by: Heiko Carstens heiko.carst...@de.ibm.com
Reviewed-by: Christian Borntraeger borntrae...@de.ibm.com
Signed-off-by: Martin Schwidefsky schwidef
From: Heiko Carstens heiko.carst...@de.ibm.com
Add missing address space annotations to all put_guest()/get_guest() callers.
Signed-off-by: Heiko Carstens heiko.carst...@de.ibm.com
Acked-by: Christian Borntraeger borntrae...@de.ibm.com
Acked-by: Martin Schwidefsky schwidef...@de.ibm.com
Signed
. In addition this is closer to the handling of
copy_to/from_user functions, which imho is in general a good idea.
Also shorten the return code handling in interrupt.c a bit.
Signed-off-by: Heiko Carstens heiko.carst...@de.ibm.com
Acked-by: Christian Borntraeger borntrae...@de.ibm.com
Signed-off
/get_user except that accesses
must be aligned.
Signed-off-by: Heiko Carstens heiko.carst...@de.ibm.com
Acked-by: Christian Borntraeger borntrae...@de.ibm.com
Signed-off-by: Martin Schwidefsky schwidef...@de.ibm.com
Signed-off-by: Christian Borntraeger borntrae...@de.ibm.com
---
arch/s390/kvm
to happen soon (e.g. tprot exception handler).
Signed-off-by: Heiko Carstens heiko.carst...@de.ibm.com
Reviewed-by: Christian Borntraeger borntrae...@de.ibm.com
Signed-off-by: Martin Schwidefsky schwidef...@de.ibm.com
Signed-off-by: Christian Borntraeger borntrae...@de.ibm.com
---
arch/s390/include
Schwidefsky schwidef...@de.ibm.com
Signed-off-by: Christian Borntraeger borntrae...@de.ibm.com
---
arch/s390/kvm/priv.c | 54 +---
1 file changed, 30 insertions(+), 24 deletions(-)
diff --git a/arch/s390/kvm/priv.c b/arch/s390/kvm/priv.c
index cb07147
more efficiently.
Signed-off-by: Michael S. Tsirkin m...@redhat.com
Seems to work fine. (as expected).
Tested-by: Christian Borntraeger borntrae...@de.ibm.com
Reviewed-by: Christian Borntraeger borntrae...@de.ibm.com
---
diff --git a/drivers/s390/kvm/virtio_ccw.c b/drivers/s390/kvm
On 26/02/13 12:04, Michael S. Tsirkin wrote:
On Mon, Feb 25, 2013 at 04:27:45PM +0100, Cornelia Huck wrote:
Here's the latest version of my patch series enabling ioeventfds
on s390, again against kvm-next.
Patches 1 and 2 (cleaning up initialization and exporting the virtio-ccw
api) would
On 26/02/13 12:18, Michael S. Tsirkin wrote:
On Tue, Feb 26, 2013 at 01:04:21PM +0200, Michael S. Tsirkin wrote:
On Mon, Feb 25, 2013 at 04:27:45PM +0100, Cornelia Huck wrote:
Here's the latest version of my patch series enabling ioeventfds
on s390, again against kvm-next.
Patches 1 and 2
-by: Christian Borntraeger borntrae...@de.ibm.com
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On 26/02/13 14:41, Michael S. Tsirkin wrote:
So...
Acked-by: Christian Borntraeger borntrae...@de.ibm.com
So let's apply the patch for 3.9 and
Give us 1 or 2 days testing for regression and then this can go for 3.9.
The host changes can then be deferred to a later point in time.
avoid
On 10/02/13 14:50, Gleb Natapov wrote:
As 3.8 release is inevitably going closer next branch is going to be
frozen this week. All new patches will be applied to queue only awaiting
for the 3.9-rc1. If you have something for 3.8 please send it asap.
Please consider
s390: Fix handling of iscs
On 07/02/13 13:20, Cornelia Huck wrote:
Hi,
here's another kvm-s390 bugfix for kvm-next, this time fixing a
thinko in the I/O interrupt injection.
Please apply.
Cornelia Huck (1):
KVM: s390: Fix handling of iscs.
arch/s390/kvm/interrupt.c | 18 +++---
1 file changed,
On 29/01/13 22:03, Gleb Natapov wrote:
The question about 1/1. It is CCed to stable, does this mean you want it
to go to 3.8? kvm-next is for 3.9.
On the second thought, if it is not a regression 3.9 is the right place.
The store status part is broken, but it only has a severe impact in case
On 29/01/13 14:12, Gleb Natapov wrote:
On Fri, Jan 25, 2013 at 03:34:14PM +0100, Christian Borntraeger wrote:
Gleb, Marcelo,
Alex, can you review?
Last time I checked, Cornelia and myself were s390/kvm/kernel maintainers ;-)
Alex is maintainer for s390/kvm/qemu.
If the patch introduces
in virtio_ccw_setup_vq(),
using a single path for all errors.
Signed-off-by: Cornelia Huck cornelia.h...@de.ibm.com
Reviewed-by: Christian Borntraeger borntrae...@de.ibm.com
Signed-off-by: Christian Borntraeger borntrae...@de.ibm.com
---
drivers/s390/kvm/virtio_ccw.c | 20 +++-
1 file changed
Gleb, Marcelo,
here are 3 kvm fixes for kvm-next.
Christian Borntraeger (3):
s390/kvm: Fix store status for ACRS/FPRS
s390/virtio-ccw: Fix setup_vq error handling.
s390/kvm: Fix instruction decoding
arch/s390/kvm/kvm-s390.c | 8
arch/s390/kvm/kvm-s390.h | 25
a machine check
will happen) will revalidate all registers with the content of the
save area.
Signed-off-by: Christian Borntraeger borntrae...@de.ibm.com
CC: sta...@vger.kernel.org
---
arch/s390/kvm/kvm-s390.c | 8
1 file changed, 8 insertions(+)
diff --git a/arch/s390/kvm/kvm-s390.c b/arch
where appropriate to avoid
problems if the code is changed or copy/pasted later on.
Signed-off-by: Christian Borntraeger borntrae...@de.ibm.com
Reviewed-by: Cornelia Huck cornelia.h...@de.ibm.com
---
arch/s390/kvm/kvm-s390.h | 25 ++---
1 file changed, 14 insertions(+), 11
On 25/01/13 15:34, Christian Borntraeger wrote:
Signed-off-by: Cornelia Huck cornelia.h...@de.ibm.com
Sorry, I messed up the From.
Should I resend or can you change the author to Cornelia Huck
cornelia.h...@de.ibm.com
Christian
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Marcelo, Gleb, Frederic,
sorry for spotting this so late. Here is a fix for a bug in kvm on s390
with 3.8-rc.
Due to all the subtle considerations regarding RCU, this is an RFC.
Christian Borntraeger (1):
s390/kvm: Fix BUG in include/linux/kvm_host.h:745
arch/s390/kvm/kvm-s390.c | 2 ++
1
to
rcu_virt_note_context_switch returns.
Please note that we continue to run s390 guests with interrupts
enabled.
CC: Frederic Weisbecker fweis...@gmail.com
CC: Gleb Natapov g...@redhat.com
Signed-off-by: Christian Borntraeger borntrae...@de.ibm.com
---
arch/s390/kvm/kvm-s390.c | 2 ++
1 file
need to do exactly the same for the kvm gaccess functions.
So __guestaddr_to_user() should just map all error codes to -EFAULT.
Signed-off-by: Heiko Carstens heiko.carst...@de.ibm.com
Reviewed-by: Christian Borntraeger borntrae...@de.ibm.com
---
arch/s390/kvm/gaccess.h | 7 +--
1 file
On 17/12/12 16:00, Alexander Graf wrote:
On 14.12.2012, at 17:02, Cornelia Huck wrote:
Hi,
here's the virtio-ccw guest support for kvm/next again.
The not-kvm specific patches have made their way upstream via the
s390 tree in the meantime. Patch 2 fixes an inconsistency there.
Patch 3
On 13/12/12 12:06, Alexander Graf wrote:
On 12.12.2012, at 21:12, Christian Borntraeger wrote:
On 12/12/12 19:31, Alexander Graf wrote:
+static inline long do_kvm_notify(struct subchannel_id schid,
+ unsigned long queue_index)
+{
+register unsigned long __nr asm(1
On 13/12/12 12:19, Alexander Graf wrote:
On 13.12.2012, at 12:13, Christian Borntraeger wrote:
On 13/12/12 12:06, Alexander Graf wrote:
On 12.12.2012, at 21:12, Christian Borntraeger wrote:
On 12/12/12 19:31, Alexander Graf wrote:
+static inline long do_kvm_notify(struct subchannel_id
On 12/12/12 19:31, Alexander Graf wrote:
+static inline long do_kvm_notify(struct subchannel_id schid,
+ unsigned long queue_index)
+{
+register unsigned long __nr asm(1) = KVM_S390_VIRTIO_CCW_NOTIFY;
+register struct subchannel_id __schid asm(2) = schid;
How does
On 11/12/12 11:53, Alexander Graf wrote:
On 07.12.2012, at 13:50, Cornelia Huck wrote:
Add a new virtio transport that uses channel commands to perform
virtio operations.
Add a new machine type s390-ccw that uses this virtio-ccw transport
and make it the default machine for s390.
Marcelo,
here is a kvm related fix for s390. Please consider for the next merge window.
Since it is s390 core kernel, I will also push it into Martins s390 tree.
Christian Borntraeger (1):
Subject: [PATCH] s390/kvm: Fix address space mixup
arch/s390/kernel/entry64.S | 25
.
(Otherwise we have a kernel bug anyway).
We also have to compensate the rewinding, since the C-level handlers
will do that. Therefore we need to add a nop with the same length
as SIE before the sie_loop.
Signed-off-by: Christian Borntraeger borntrae...@de.ibm.com
CC: sta...@vger.kernel.org
CC: Martin
On 31/10/12 11:32, Alexander Graf wrote:
On 23.10.2012, at 08:20, Christian Borntraeger borntrae...@de.ibm.com wrote:
On 22/10/12 23:14, Alexander Graf wrote:
Hi Christian,
During our normal Factory kernel builds, s390x seems to choke:
/home/abuild/rpmbuild/BUILD/kernel-default-3.7
On 22/10/12 23:14, Alexander Graf wrote:
Hi Christian,
During our normal Factory kernel builds, s390x seems to choke:
/home/abuild/rpmbuild/BUILD/kernel-default-3.7.rc2/linux-3.7-rc2/arch/s390/include/asm/kvm_para.h:147:99:
error: redefinition of 'kvm_arch_para_features'
Avi, Marcelo,
here are some fixes for kvm on s390.
Would be good if we could add s390/kvm: dont announce RRBM support for
3.7 since the current kvm claims a feature that we currently dont support.
Everything else can be queued for the next merge window. Thanks
Christian Borntraeger (1
+0x6c/0x27c)
[ 2150.713749] [00233812] page_referenced+0x32a/0x410
[...]
CC: sta...@vger.kernel.org
CC: Alex Graf ag...@suse.de
Signed-off-by: Martin Schwidefsky schwidef...@de.ibm.com
Signed-off-by: Christian Borntraeger borntrae...@de.ibm.com
---
arch/s390/kvm/kvm-s390.c | 2 +-
1 file
Schwidefsky schwidef...@de.ibm.com
Signed-off-by: Christian Borntraeger borntrae...@de.ibm.com
---
arch/s390/kvm/interrupt.c | 19 ++-
1 file changed, 18 insertions(+), 1 deletion(-)
diff --git a/arch/s390/kvm/interrupt.c b/arch/s390/kvm/interrupt.c
index 7556231..744ac1b 100644
From: Cornelia Huck cornelia.h...@de.ibm.com
Signed-off-by: Cornelia Huck cornelia.h...@de.ibm.com
Signed-off-by: Martin Schwidefsky schwidef...@de.ibm.com
Signed-off-by: Christian Borntraeger borntrae...@de.ibm.com
---
Documentation/virtual/kvm/api.txt | 33 +
1
On 20/09/12 07:22, Michael S. Tsirkin wrote:
On Thu, Sep 20, 2012 at 08:16:08AM +0800, Fengguang Wu wrote:
Hi Michael,
FYI, there are new compile warnings show up in
tree: git://git.kernel.org/pub/scm/virt/kvm/kvm.git queue
head: 879238fecc051d95037ae76332916209a7770709
commit:
.
Reported-by: Fengguang Wu fengguang...@intel.com
Signed-off-by: Christian Borntraeger borntrae...@de.ibm.com
---
arch/s390/kvm/interrupt.c |2 --
1 files changed, 0 insertions(+), 2 deletions(-)
diff --git a/arch/s390/kvm/interrupt.c b/arch/s390/kvm/interrupt.c
index 7556231..ff1e2f8 100644
On 19/09/12 16:47, Alexander Graf wrote:
On 04.09.2012, at 17:13, Cornelia Huck wrote:
Handle most support for channel I/O instructions in the kernel itself.
Only asynchronous functions (such as the start function) need to be
handled by userspace.
Phew. This is a lot of code for
Have you written an appendix for the virtio specification for
virtio-ccw? I think it would be good to include in this series for the
purposes of review.
Might be nice, but don't get fancy about it. Text will be fine and I
can cut paste it in once it's finalized.
There was a patch
On 22/07/12 14:43, Avi Kivity wrote:
On 07/22/2012 03:34 PM, Raghavendra K T wrote:
Thanks Marcelo for the review. Avi, Rik, Christian, please let me know
if this series looks good now.
It looks fine to me. Christian, is this okay for s390?
Tested-by: Christian Borntraeger borntrae
On 13/07/12 05:35, Raghavendra K T wrote:
Yes! I forgot about archs in init function.
How about having
#ifdef CONFIG_HAVE_KVM_CPU_RELAX_INTERCEPT
vcpu-ple.cpu_relax_intercepted = false;
vcpu-ple.dy_eligible = false;
#endif
This would solve all the problem.
No, you need to mask all
On 12/07/12 21:18, Raghavendra K T wrote:
+#ifdef CONFIG_HAVE_KVM_CPU_RELAX_INTERCEPT
[...]
+ struct {
+ bool cpu_relax_intercepted;
+ bool dy_eligible;
+ } ple;
+#endif
[...]
}
vcpu-run = page_address(page);
+ vcpu-ple.cpu_relax_intercepted
On 11/07/12 11:06, Avi Kivity wrote:
[...]
Almost all s390 kernels use diag9c (directed yield to a given guest cpu) for
spinlocks, though.
Perhaps x86 should copy this.
See arch/s390/lib/spinlock.c
The basic idea is using several heuristics:
- loop for a given amount of loops
- check if the
On 11/07/12 13:04, Avi Kivity wrote:
On 07/11/2012 01:17 PM, Christian Borntraeger wrote:
On 11/07/12 11:06, Avi Kivity wrote:
[...]
Almost all s390 kernels use diag9c (directed yield to a given guest cpu)
for spinlocks, though.
Perhaps x86 should copy this.
See arch/s390/lib/spinlock.c
On 11/07/12 13:51, Raghavendra K T wrote:
Almost all s390 kernels use diag9c (directed yield to a given guest cpu)
for spinlocks, though.
Perhaps x86 should copy this.
See arch/s390/lib/spinlock.c
The basic idea is using several heuristics:
- loop for a given amount of loops
- check if
On 09/07/12 08:20, Raghavendra K T wrote:
Currently Pause Looop Exit (PLE) handler is doing directed yield to a
random VCPU on PL exit. Though we already have filtering while choosing
the candidate to yield_to, we can do better.
Problem is, for large vcpu guests, we have more probability of
Folks,
here is a patch that fixes vhost to use USER_DS before
doing a use_mm/usercopy operation. This was found during
vhost prototyping on s390 were we have a separate user/kernel
address space.
Jens Freimann (1):
use USER_DS in vhost_worker thread
drivers/vhost/vhost.c |3 +++
1 files
We have three solutions to implement this feature:
1. use vmcall
2. use I/O port
3. use virtio-serial.
We have decided to avoid touching hypervisor. The reason why I choose
choose the I/O port is:
1. it is easier to implememt
2. it does not depend any virtual device
3. it can work when
On 11/06/12 18:46, Alexander Graf wrote:
On 06/11/2012 04:06 PM, Cornelia Huck wrote:
From: Heinz Graalfsgraa...@linux.vnet.ibm.com
For processing under KVM it is required to detect
the actual SCLP console type in order to set it as
preferred console.
Signed-off-by: Heinz
On 11/06/12 18:46, Alexander Graf wrote:
On 06/11/2012 04:06 PM, Cornelia Huck wrote:
From: Christian Borntraegerborntrae...@de.ibm.com
The initial cpu reset sets the cpu in the stopped state.
Several places check for the cpu state (e.g. sigp set prefix) and
not setting the STOPPED state
FYI,
Carsten pointed out that I forgot to CC the kvm mailing list.
Right he is.
On 05/06/12 13:05, Christian Borntraeger wrote:
Since Carsten is now working on a different project, Cornelia will
work as the 2nd s390/kvm maintainer.
Signed-off-by: Christian Borntraeger borntrae
On 24/04/12 14:04, Avi Kivity wrote:
@@ -74,6 +74,7 @@ struct kvm_stats_debugfs_item debugfs_entries[] = {
{ instruction_sigp_restart, VCPU_STAT(instruction_sigp_restart) },
{ diagnose_10, VCPU_STAT(diagnose_10) },
{ diagnose_44, VCPU_STAT(diagnose_44) },
+{ diagnose_9c,
On 05/06/12 14:42, Alexander Graf wrote:
On 15.05.2012, at 14:15, Christian Borntraeger wrote:
From: Jason J. herne jjhe...@us.ibm.com
Enhance the KVM ONE_REG capability within S390 to allow
getting/setting the following special cpu registers: clock comparator
and the cpu timer
On 04/06/12 03:57, Rusty Russell wrote:
Unfortunately, this conflicts with Asias He's deadlock fix, which has
us just using the block-layer-supplied spinlock.
If we drop the lock around the kick as you suggest, we're playing with
fire. All the virtio backends have an atomic notify, so
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