On 29/08/14 14:01, Paolo Bonzini wrote:
Opaque KVM structs are useful for prototypes in asm/kvm_host.h, to avoid
'struct foo' declared inside parameter list warnings (and consequent
breakage due to conflicting types).
Move them from individual files to a generic place in linux/kvm_types.h.
On 01/09/14 14:52, Zhang Haoyu wrote:
Hi, all
I start a VM with virtio-serial (default ports number: 31), and found that
virtio-blk performance degradation happened, about 25%, this problem can
be reproduced 100%.
without virtio-serial:
4k-read-random 1186 IOPS
with virtio-serial:
On 01/09/14 15:12, Paolo Bonzini wrote:
Il 01/09/2014 15:09, Christian Borntraeger ha scritto:
This is just wild guessing:
If virtio-blk and virtio-serial share an IRQ, the guest operating system has
to check each virtqueue for activity. Maybe there is some inefficiency doing
that.
AFAIK
On 01/09/14 15:29, Paolo Bonzini wrote:
Il 01/09/2014 15:22, Christian Borntraeger ha scritto:
If virtio-blk and virtio-serial share an IRQ, the guest operating system
has to check each virtqueue for activity. Maybe there is some inefficiency
doing that.
AFAIK virtio-serial registers 64
On 01/09/14 16:03, Christian Borntraeger wrote:
On 01/09/14 15:29, Paolo Bonzini wrote:
Il 01/09/2014 15:22, Christian Borntraeger ha scritto:
If virtio-blk and virtio-serial share an IRQ, the guest operating system
has to check each virtqueue for activity. Maybe there is some
inefficiency
transitions that
we need to handle to transfer the storage key from/to pgste.
Christian Borntraeger (2):
KVM: s390/mm: Fix storage key corruption during swapping
KVM: s390/mm: Fix guest storage key corruption
in it might be read-only and due to a parallel scan old.
An do_wp_page will make it writeable and young. Due to software
reference tracking this page was invalid and now becomes valid.
Signed-off-by: Christian Borntraeger borntrae...@de.ibm.com
Acked-by: Martin Schwidefsky schwidef...@de.ibm.com
Cc
in that case.
Signed-off-by: Christian Borntraeger borntrae...@de.ibm.com
Acked-by: Martin Schwidefsky schwidef...@de.ibm.com
Cc: sta...@vger.kernel.org # v3.12+
---
arch/s390/include/asm/pgtable.h | 5 +++--
1 file changed, 3 insertions(+), 2 deletions(-)
diff --git a/arch/s390/include/asm
The first statement of kvm_dev_ioctl is
long r = -EINVAL;
No need to reassign the same value.
Signed-off-by: Christian Borntraeger borntrae...@de.ibm.com
---
virt/kvm/kvm_main.c | 2 --
1 file changed, 2 deletions(-)
diff --git a/virt/kvm/kvm_main.c b/virt/kvm/kvm_main.c
index 0a824a0
The expression `vcpu-spin_loop.in_spin_loop' is always true,
because it is evaluated only when the condition
`!vcpu-spin_loop.in_spin_loop' is false.
Signed-off-by: Christian Borntraeger borntrae...@de.ibm.com
---
virt/kvm/kvm_main.c | 3 +--
1 file changed, 1 insertion(+), 2 deletions(-)
diff
or apply the patches.
Christian Borntraeger (3):
KVM: remove redundant check of in_spin_loop
KVM: remove redundant assigment of return value in kvm_dev_ioctl
KVM: remove redundant assignments in __kvm_set_memory_region
virt/kvm/kvm_main.c | 8 +---
1 file changed, 1 insertion(+), 7
__kvm_set_memory_region sets r to EINVAL very early.
Doing it again is not necessary. The same is true later on, where
r is assigned -ENOMEM twice.
Signed-off-by: Christian Borntraeger borntrae...@de.ibm.com
---
virt/kvm/kvm_main.c | 3 ---
1 file changed, 3 deletions(-)
diff --git a/virt/kvm
handling of the diag10 ballooning interface. If the
guest freed the pages at absolute 0 some checks and frees were
incorrect
4. Limit guests to 16TB
5. Add __must_check to interrupt injection code
Christian Borntraeger (6):
KVM
that is totally untested as I do not have enough
swap space/memory.
We continue to allow ucontrol the full size.
Signed-off-by: Christian Borntraeger borntrae...@de.ibm.com
Acked-by: Cornelia Huck cornelia.h...@de.ibm.com
Cc: Martin Schwidefsky schwidef...@de.ibm.com
---
arch/s390/kvm/kvm-s390.c | 2 +-
1
We must not fallthrough if the conditions for external call are not met.
Signed-off-by: Christian Borntraeger borntrae...@de.ibm.com
Reviewed-by: Thomas Huth th...@linux.vnet.ibm.com
Cc: sta...@vger.kernel.org
---
arch/s390/kvm/interrupt.c | 1 +
1 file changed, 1 insertion(+)
diff --git a/arch
Due to the earlier check we know that ipte_lock_count must be 0.
No need to add a useless if. Let's make clear that we are going
to always wakeup when we execute that code.
Signed-off-by: Christian Borntraeger borntrae...@de.ibm.com
Acked-by: Heiko Carstens heiko.carst...@de.ibm.com
---
arch
Signed-off-by: Christian Borntraeger borntrae...@de.ibm.com
Reviewed-by: Thomas Huth th...@linux.vnet.ibm.com
---
arch/s390/kvm/diag.c | 26 ++
1 file changed, 18 insertions(+), 8 deletions(-)
diff --git a/arch/s390/kvm/diag.c b/arch/s390/kvm/diag.c
index b374b6c..9254aff
We now propagate interrupt injection errors back to the ioctl. We
should mark functions that might fail with __must_check.
Signed-off-by: Christian Borntraeger borntrae...@de.ibm.com
Acked-by: Jens Freimann jf...@linux.vnet.ibm.com
---
arch/s390/kvm/interrupt.c | 12 ++--
arch/s390/kvm
r is already initialized to 0.
Signed-off-by: Christian Borntraeger borntrae...@de.ibm.com
Reviewed-by: Thomas Huth th...@linux.vnet.ibm.com
---
arch/s390/kvm/interrupt.c | 1 -
1 file changed, 1 deletion(-)
diff --git a/arch/s390/kvm/interrupt.c b/arch/s390/kvm/interrupt.c
index 4abf819
Folks,
we have seen the following bug with 3.16 as a KVM guest. It suspect the blk-mq
rework that happened between 3.15 and 3.16, but it can be something completely
different.
[ 65.992022] Unable to handle kernel pointer dereference in virtual kernel
address space
[ 65.992187] failing
On 09/11/2014 12:26 PM, Christian Borntraeger wrote:
Folks,
we have seen the following bug with 3.16 as a KVM guest. It suspect the
blk-mq rework that happened between 3.15 and 3.16, but it can be something
completely different.
[ 65.992022] Unable to handle kernel pointer
On 09/12/2014 01:54 PM, Ming Lei wrote:
On Thu, Sep 11, 2014 at 6:26 PM, Christian Borntraeger
borntrae...@de.ibm.com wrote:
Folks,
we have seen the following bug with 3.16 as a KVM guest. It suspect the
blk-mq rework that happened between 3.15 and 3.16, but it can be something
completely
On 09/12/2014 10:09 PM, Christian Borntraeger wrote:
On 09/12/2014 01:54 PM, Ming Lei wrote:
On Thu, Sep 11, 2014 at 6:26 PM, Christian Borntraeger
borntrae...@de.ibm.com wrote:
Folks,
we have seen the following bug with 3.16 as a KVM guest. It suspect the
blk-mq rework that happened
On 09/18/2014 11:04 AM, David Hildenbrand wrote:
This patch should fix the bug reported in https://lkml.org/lkml/2014/9/11/249.
We have to initialize at least the atomic_flags and the cmd_flags when
allocating storage for the requests.
Otherwise blk_mq_timeout_check() might dereference
On 09/19/2014 04:19 PM, Jason J. Herne wrote:
From: Jason J. Herne jjhe...@us.ibm.com
Enable KVM_SET_CLOCK and KVM_GET_CLOCK Ioctls on S390 for managing guest TOD
clock value.
Just some education. On s390 the guest visible TOD clock is thehost TOD clock +
hypervisor programmable offset in
On 09/19/2014 10:38 PM, Alexander Graf wrote:
On 19.09.14 20:51, Christian Borntraeger wrote:
On 09/19/2014 04:19 PM, Jason J. Herne wrote:
From: Jason J. Herne jjhe...@us.ibm.com
Enable KVM_SET_CLOCK and KVM_GET_CLOCK Ioctls on S390 for managing guest TOD
clock value.
Just some
On 09/22/2014 12:50 PM, Paolo Bonzini wrote:
Il 20/09/2014 01:03, David Matlack ha scritto:
vcpu ioctls can hang the calling thread if issued while a vcpu is
running. If we know ioctl is going to be rejected as invalid anyway,
we can fail before trying to take the vcpu mutex.
This patch does
in blk_mq_timeout_check().
Cc: sta...@vger.kernel.org
Signed-off-by: David Hildenbrand d...@linux.vnet.ibm.com
Acked-by: Christian Borntraeger borntrae...@de.ibm.com
Can you please add
Reported-by: Paulo De Rezende Pinatti ppina...@linux.vnet.ibm.com
Tested-by: Paulo De Rezende Pinatti ppina
On 09/22/2014 04:31 PM, Paolo Bonzini wrote:
Il 22/09/2014 15:45, Christian Borntraeger ha scritto:
We now have an extra condition check for every valid ioctl, to make an error
case go faster.
I know, the extra check is just a 1 or 2 cycles if branch prediction is
right, but still.
I
On 09/23/2014 08:49 AM, Gleb Natapov wrote:
On Mon, Sep 22, 2014 at 09:29:19PM +0200, Paolo Bonzini wrote:
Il 22/09/2014 21:20, Christian Borntraeger ha scritto:
while using trinity to fuzz KVM, we noticed long stalls on invalid ioctls.
Lets bail out early on invalid ioctls. or similar
)
KVM: s390: Small enhancements for 3.18 (next)
Provide TOD CLOCK steering to the guest and add cpu wakeup counter.
Christian Borntraeger (1):
KVM: s390/facilities: allow TOD-CLOCK
-off-by: Christian Borntraeger borntrae...@de.ibm.com
---
arch/s390/include/asm/kvm_host.h | 1 +
arch/s390/kvm/interrupt.c| 1 +
arch/s390/kvm/kvm-s390.c | 1 +
3 files changed, 3 insertions(+)
diff --git a/arch/s390/include/asm/kvm_host.h b/arch/s390/include/asm/kvm_host.h
index
There is nothing to do for KVM to support TOD-CLOCK steering.
Signed-off-by: Christian Borntraeger borntrae...@de.ibm.com
Reviewed-by: David Hildenbrand d...@linux.vnet.ibm.com
---
arch/s390/kvm/kvm-s390.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/arch/s390/kvm/kvm-s390
On 10/01/2014 04:17 PM, Alexander Graf wrote:
On 01.10.14 16:02, Christian Borntraeger wrote:
There is nothing to do for KVM to support TOD-CLOCK steering.
Signed-off-by: Christian Borntraeger borntrae...@de.ibm.com
Reviewed-by: David Hildenbrand d...@linux.vnet.ibm.com
---
arch/s390
Am 02.10.2014 10:22, schrieb Heiko Carstens:
On Wed, Oct 01, 2014 at 08:27:38PM +0200, Christian Borntraeger wrote:
On 10/01/2014 04:17 PM, Alexander Graf wrote:
On 01.10.14 16:02, Christian Borntraeger wrote:
There is nothing to do for KVM to support TOD-CLOCK steering.
Signed-off
Am 08.10.2014 16:55, schrieb Alexander Graf:
On 08.10.14 16:09, Jason Herne wrote:
Christian Borntraeger borntrae...@de.ibm.com wrote on 09/22/2014
05:08:34 AM:
...
Actually, I would expect something different (more or less something
like standby/resume).
In fact Jasons code that we
Am 21.10.2014 20:39, schrieb Paolo Bonzini:
On 10/16/2014 10:15 AM, Wu, Feng wrote:
Hi folks,
I run kernel build in the guest and use perf kvm to get some VM-Exit result
as the following:
Analyze events for all VCPUs:
VM-EXITSamples Samples% Time% Min Time
Paolo,
the first bunch on s390 change for next:
The following changes since commit cac7f2429872d3733dc3f9915857b1691da2eb2f:
Linux 3.18-rc2 (2014-10-26 16:48:41 -0700)
are available in the git repository at:
git://git.kernel.org/pub/scm/linux/kernel/git/kvms390/linux.git
-by: Christian Borntraeger borntrae...@de.ibm.com
---
arch/s390/mm/pgtable.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/arch/s390/mm/pgtable.c b/arch/s390/mm/pgtable.c
index 1b79ca6..cfecc24 100644
--- a/arch/s390/mm/pgtable.c
+++ b/arch/s390/mm/pgtable.c
@@ -936,7 +936,7 @@ int
...@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/sigp.c | 12 +---
1 file changed, 9 insertions(+), 3 deletions(-)
diff --git a/arch/s390/kvm/sigp.c b/arch/s390/kvm/sigp.c
index 9ee63e4..1b330d4
...@de.ibm.com
Signed-off-by: Christian Borntraeger borntrae...@de.ibm.com
---
arch/s390/include/asm/kvm_host.h | 7 +++
arch/s390/kvm/kvm-s390.c | 7 +++
arch/s390/kvm/sigp.c | 8 +++-
3 files changed, 21 insertions(+), 1 deletion(-)
diff --git a/arch/s390/include/asm
Huth th...@linux.vnet.ibm.com
Acked-by: Heiko Carstens heiko.carst...@de.ibm.com
Reviewed-by: Christian Borntraeger borntrae...@de.ibm.com
Signed-off-by: Christian Borntraeger borntrae...@de.ibm.com
---
arch/s390/include/asm/kvm_host.h | 2 ++
arch/s390/kvm/gaccess.c | 20
.
Signed-off-by: David Hildenbrand d...@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/sigp.c | 25 ++---
1 file changed, 18 insertions(+), 7 deletions(-)
diff --git a/arch/s390/kvm
...@linux.vnet.ibm.com
Reviewed-by: Cornelia Huck cornelia.h...@de.ibm.com
Signed-off-by: Christian Borntraeger borntrae...@de.ibm.com
---
arch/s390/kvm/sigp.c | 74 ++--
1 file changed, 43 insertions(+), 31 deletions(-)
diff --git a/arch/s390/kvm/sigp.c b/arch/s390/kvm
-by: Christian Borntraeger borntrae...@de.ibm.com
---
arch/s390/kvm/interrupt.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/arch/s390/kvm/interrupt.c b/arch/s390/kvm/interrupt.c
index a398384..4fc3fed 100644
--- a/arch/s390/kvm/interrupt.c
+++ b/arch/s390/kvm/interrupt.c
@@ -270,7
- unknown sigp orders
All sigp orders that require user space intervention are logged.
Signed-off-by: David Hildenbrand d...@linux.vnet.ibm.com
Reviewed-by: Cornelia Huck cornelia.h...@de.ibm.com
Signed-off-by: Christian Borntraeger borntrae...@de.ibm.com
---
arch/s390/include/asm/sigp.h | 1 +
arch
...@de.ibm.com
Signed-off-by: Christian Borntraeger borntrae...@de.ibm.com
---
arch/s390/kvm/sigp.c | 139 ++-
1 file changed, 48 insertions(+), 91 deletions(-)
diff --git a/arch/s390/kvm/sigp.c b/arch/s390/kvm/sigp.c
index 5e259bd..660a945 100644
Am 23.10.2014 00:34, schrieb Mario Smarduch:
This patch series introduces dirty page logging for ARMv7 and adds some
degree
of generic dirty logging support for x86, armv7 and later armv8.
I implemented Alex's suggestion after he took a look at the patches at kvm
forum to simplify the
Am 05.11.2014 11:07, schrieb Alexander Graf:
On 27.10.14 16:44, Jason J. Herne wrote:
From: Jason J. Herne jjhe...@linux.vnet.ibm.com
Enable KVM_SET_CLOCK and KVM_GET_CLOCK ioctls on s390 for managing guest Time
Of Day clock value.
Signed-off-by: Jason J. Herne
Am 05.11.2014 14:11, schrieb Paolo Bonzini:
On 05/11/2014 13:28, Christian Borntraeger wrote:
Am 05.11.2014 11:07, schrieb Alexander Graf:
On 27.10.14 16:44, Jason J. Herne wrote:
From: Jason J. Herne jjhe...@linux.vnet.ibm.com
Enable KVM_SET_CLOCK and KVM_GET_CLOCK ioctls on s390
Am 05.11.2014 18:37, schrieb Alexander Graf:
On 05.11.14 17:48, Christian Borntraeger wrote:
Am 05.11.2014 14:11, schrieb Paolo Bonzini:
On 05/11/2014 13:28, Christian Borntraeger wrote:
Am 05.11.2014 11:07, schrieb Alexander Graf:
On 27.10.14 16:44, Jason J. Herne wrote:
From: Jason
Am 05.11.2014 20:45, schrieb Paolo Bonzini:
On 05/11/2014 18:56, Christian Borntraeger wrote:
Whether you want to follow that approach or do it as VM attribute
straight away, I don't mind much :).
given that top programmable field and epoch are available as ONEREG, lets do
the same
Am 06.11.2014 09:43, schrieb Christian Borntraeger:
Am 05.11.2014 20:45, schrieb Paolo Bonzini:
On 05/11/2014 18:56, Christian Borntraeger wrote:
Whether you want to follow that approach or do it as VM attribute
straight away, I don't mind much :).
given that top programmable field
. We should flush TLBs for load control instruction emulation (stable)
2. A workaround for a compiler bug that renders ACCESS_ONCE broken (stable)
3. Fix program check handling for load control
4. Documentation Fix
Christian
intercept should not happen that often.
Signed-off-by: Christian Borntraeger borntrae...@de.ibm.com
Acked-by: Cornelia Huck cornelia.h...@de.ibm.com
Reviewed-by: David Hildenbrand d...@linux.vnet.ibm.com
Cc: sta...@vger.kernel.org
---
arch/s390/kvm/priv.c | 4 ++--
1 file changed, 2 insertions
the ACCESS_ONCE scheme with a barrier() based scheme
that should work for all supported compilers.
Signed-off-by: Christian Borntraeger borntrae...@de.ibm.com
Cc: sta...@vger.kernel.org # v3.16+
---
arch/s390/kvm/gaccess.c | 20 ++--
1 file changed, 14 insertions(+), 6 deletions(-)
diff --git
From: Dominik Dingel din...@linux.vnet.ibm.com
Documentation uses incorrect attribute names for some vm device
attributes: fix this.
Signed-off-by: Dominik Dingel din...@linux.vnet.ibm.com
Signed-off-by: Christian Borntraeger borntrae...@de.ibm.com
---
Documentation/virtual/kvm/devices/vm.txt
-by: Christian Borntraeger borntrae...@de.ibm.com
---
arch/s390/kvm/priv.c | 68 +---
1 file changed, 32 insertions(+), 36 deletions(-)
diff --git a/arch/s390/kvm/priv.c b/arch/s390/kvm/priv.c
index 9c565b6..9bde32f 100644
--- a/arch/s390/kvm/priv.c
+++ b/arch
Am 07.11.2014 um 16:06 schrieb Paolo Bonzini:
On 07/11/2014 15:55, Jason J. Herne wrote:
From: Jason J. Herne jjhe...@linux.vnet.ibm.com
Provide KVM_REG_S390_TOD and KVM_REG_S390_TOD_HIGH registers on s390 for
managing guest Time Of Day clock value.
KVM_REG_S390_TOD_HIGH is presently
to be ok for the kernel.
Christian
Forwarded Message
Subject: [GIT PULL 1/4] KVM: s390: Fix ipte locking
Date: Fri, 7 Nov 2014 12:45:13 +0100
From: Christian Borntraeger borntrae...@de.ibm.com
To: Paolo Bonzini pbonz...@redhat.com
CC: KVM kvm@vger.kernel.org, Gleb Natapov g
Am 10.11.2014 um 22:07 schrieb Linus Torvalds:
On Mon, Nov 10, 2014 at 12:18 PM, Christian Borntraeger
borntrae...@de.ibm.com wrote:
Now: I can reproduces belows miscompile on gcc46 and gcc 47
gcc 45 seems ok, gcc 48 is fixed. This makes blacklisting
a bit hard, especially since
Am 12.11.2014 um 01:36 schrieb Linus Torvalds:
On Tue, Nov 11, 2014 at 4:33 PM, Linus Torvalds
torva...@linux-foundation.org wrote:
I guess as a workaround it is fine, as long as we don't lose sight of
trying to eventually do a better job.
Oh, and when it comes to the actual gcc bug - do
Am 10.11.2014 um 22:07 schrieb Linus Torvalds:
[...]
So before blacklisting any compilers, let's first see if
(a) we can actually make it a real rule that we only use ACCESS_ONCE on
scalars
(b) we can somehow enforce this with a compiler warning/error for mis-uses
For example, the
Am 25.11.2014 um 17:04 schrieb David Hildenbrand:
As some architectures (e.g. s390) can't disable preemption while
entering/leaving the guest, they won't receive the yield in all situations.
kvm_enter_guest() has to be called with preemption_disabled and will set
PF_VCPU. After that point
synchronize_rc and the qemu fixes for s390 to bring all vCPU
ioctls in the right thread).
- It makes vcpu_load cheaper
- It emphasizes what in api.txt: Only run vcpu ioctls from the same thread
that was used to create the
vcpu.
Acked-by: Christian Borntraeger borntrae...@de.ibm.com
Am 26.11.2014 um 10:23 schrieb David Hildenbrand:
This change is a trade-off.
PRO: This patch would improve the case of preemption on s390. This is
probably a corner case as most distros have preemption off anyway.
CON: The downside is that kvm_vcpu_yield_to is called also from
+---+---+---++---+
1x 6386.4737 1.04876703.9113 1.2298 4.97047
2x 2571.4712 1.37332571.8175 1.6919 0.01347
+---+---+---++---+
Raghu
On Wed, Nov 26, 2014 at 3:01 PM, Christian Borntraeger
borntrae
-by: Christian Borntraeger borntrae...@de.ibm.com
---
arch/s390/kvm/interrupt.c | 221 +++---
1 file changed, 167 insertions(+), 54 deletions(-)
diff --git a/arch/s390/kvm/interrupt.c b/arch/s390/kvm/interrupt.c
index ead52bf..8f50f8c 100644
--- a/arch/s390/kvm
priority than the
specification exceptions, so the check for low-address protection
has to be moved after the last spot where we inject a specification
exception.
Signed-off-by: Thomas Huth th...@linux.vnet.ibm.com
Reviewed-by: Cornelia Huck cornelia.h...@de.ibm.com
Signed-off-by: Christian
From: Jens Freimann jf...@linux.vnet.ibm.com
Get rid of open coded value for virtio and pfault completion interrupts.
Signed-off-by: Jens Freimann jf...@linux.vnet.ibm.com
Reviewed-by: David Hildenbrand d...@linux.vnet.ibm.com
Signed-off-by: Christian Borntraeger borntrae...@de.ibm.com
---
arch
Freimann jf...@linux.vnet.ibm.com
Reviewed-by: Cornelia Huck cornelia.h...@de.ibm.com
Reviewed-by: David Hildenbrand d...@linux.vnet.ibm.com
Signed-off-by: Christian Borntraeger borntrae...@de.ibm.com
---
arch/s390/kvm/interrupt.c | 14 +++---
1 file changed, 11 insertions(+), 3 deletions
...@linux.vnet.ibm.com
Reviewed-by: Cornelia Huck cornelia.h...@de.ibm.com
Reviewed-by: David Hildenbrand d...@linux.vnet.ibm.com
Signed-off-by: Christian Borntraeger borntrae...@de.ibm.com
---
arch/s390/include/asm/kvm_host.h | 2 -
arch/s390/kvm/intercept.c| 4 +-
arch/s390/kvm/interrupt.c| 601
Reviewed-by: Cornelia Huck cornelia.h...@de.ibm.com
Signed-off-by: Christian Borntraeger borntrae...@de.ibm.com
---
arch/s390/kvm/interrupt.c | 459 --
1 file changed, 282 insertions(+), 177 deletions(-)
diff --git a/arch/s390/kvm/interrupt.c b/arch/s390/kvm
kvm_s390_rewind_psw().
Signed-off-by: Thomas Huth th...@linux.vnet.ibm.com
Reviewed-by: David Hildenbrand d...@linux.vnet.ibm.com
Reviewed-by: Cornelia Huck cornelia.h...@de.ibm.com
Signed-off-by: Christian Borntraeger borntrae...@de.ibm.com
---
arch/s390/include/asm/kvm_host.h | 2 +-
arch/s390/kvm
.
Christian Borntraeger (1):
KVM: s390: trigger the right CPU exit for floating interrupts
David Hildenbrand (1):
KVM: s390: external param not valid for cpu timer and ckc
Jason J. Herne (1):
KVM: S390: Create helper function get_guest_storage_key
Jens
true for machine checks. Since there is no
special exit, just reuse the generic stop exit. The injection
code inside the VCPU loop will recheck anyway and rearm the
proper exits (e.g. control registers) if necessary.
Signed-off-by: Christian Borntraeger borntrae...@de.ibm.com
Reviewed-by: Thomas Huth
storage keys.
Signed-off-by: Jason J. Herne jjhe...@linux.vnet.ibm.com
Reviewed-by: David Hildenbrand d...@linux.vnet.ibm.com
Signed-off-by: Christian Borntraeger borntrae...@de.ibm.com
---
arch/s390/include/asm/pgalloc.h | 1 +
arch/s390/mm/pgtable.c | 39
-by: Thomas Huth th...@linux.vnet.ibm.com
Reviewed-by: Cornelia Huck cornelia.h...@de.ibm.com
Reviewed-by: David Hildenbrand d...@linux.vnet.ibm.com
Signed-off-by: Christian Borntraeger borntrae...@de.ibm.com
---
arch/s390/include/asm/kvm_host.h | 86
1 file changed
From: David Hildenbrand d...@linux.vnet.ibm.com
The 32bit external interrupt parameter is only valid for timing-alert and
service-signal interrupts.
Signed-off-by: David Hildenbrand d...@linux.vnet.ibm.com
Signed-off-by: Christian Borntraeger borntrae...@de.ibm.com
---
arch/s390/kvm/interrupt.c
Am 28.11.2014 um 18:18 schrieb Paolo Bonzini:
On 28/11/2014 14:25, Christian Borntraeger wrote:
+struct kvm_s390_irq_payload {
+struct kvm_s390_io_info io;
+struct kvm_s390_ext_info ext;
+struct kvm_s390_pgm_info pgm;
+struct kvm_s390_emerg_info emerg;
+struct
Am 28.11.2014 um 18:16 schrieb Paolo Bonzini:
On 28/11/2014 14:25, Christian Borntraeger wrote:
+static int __inject_prog_irq(struct kvm_vcpu *vcpu,
+ struct kvm_s390_interrupt_info *inti)
+{
Why the __s? :)
In this case because its called with a lock already
Am 03.12.2014 um 13:54 schrieb Paolo Bonzini:
On 03/12/2014 13:12, David Hildenbrand wrote:
This series improves yielding on architectures that cannot disable
preemption
while entering the guest and makes the creating thread of a VCPU the owning
thread and therefore the yield target when
Paolo,
some last minute changes for 3.19 as followup for the latest interrupt
rework + a small architectural compliance fix.
Christian
The following changes since commit be06b6bece19be5b167d863fd6c5271e4ec8f1fa:
Merge tag 'kvm-s390-next-20141128' of
as a
parameter field. As bit 6 is set, this implementation is correct.
Reviewed-by: Thomas Huth th...@linux.vnet.ibm.com
Signed-off-by: David Hildenbrand d...@linux.vnet.ibm.com
Signed-off-by: Christian Borntraeger borntrae...@de.ibm.com
---
arch/s390/kvm/interrupt.c | 3 +++
1 file changed, 3
...@de.ibm.com
Signed-off-by: Christian Borntraeger borntrae...@de.ibm.com
---
arch/s390/kvm/interrupt.c | 26 +-
1 file changed, 13 insertions(+), 13 deletions(-)
diff --git a/arch/s390/kvm/interrupt.c b/arch/s390/kvm/interrupt.c
index 86bc89a..f00f31e 100644
--- a/arch/s390
lock where interrupt data needs
to be protected.
Signed-off-by: Jens Freimann jf...@linux.vnet.ibm.com
Reviewed-by: David Hildenbrand d...@linux.vnet.ibm.com
Signed-off-by: Christian Borntraeger borntrae...@de.ibm.com
---
arch/s390/kvm/interrupt.c | 4 ++--
1 file changed, 2 insertions(+), 2
At least on z196 stnsm is faster than stosm.
Signed-off-by: Christian Borntraeger borntrae...@de.ibm.com
---
arch/s390/include/asm/irqflags.h | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/arch/s390/include/asm/irqflags.h b/arch/s390/include/asm/irqflags.h
index 37b9091
Paolo,
sorry, should have only go to Martin and Heiko.
Nothing to worry about from your side. :-)
Am 16.12.2014 um 10:30 schrieb Christian Borntraeger:
At least on z196 stnsm is faster than stosm.
Signed-off-by: Christian Borntraeger borntrae...@de.ibm.com
---
arch/s390/include/asm
Am 03.02.2015 um 16:22 schrieb Paolo Bonzini:
On 03/02/2015 16:16, Thomas Huth wrote:
Actually, I'd prefer to keep the virtual in the defines for the type
of operation below: When it comes to s390 storage keys, we likely might
need some calls for reading and writing to physical memory,
-by: David Hildenbrand d...@linux.vnet.ibm.com
Reviewed-by: Cornelia Huck cornelia.h...@de.ibm.com
Acked-by: Heiko Carstens heiko.carst...@de.ibm.com
Signed-off-by: Christian Borntraeger borntrae...@de.ibm.com
---
arch/s390/include/asm/sysinfo.h | 10 +++---
arch/s390/kernel/sysinfo.c | 29
...@linux.vnet.ibm.com
Reviewed-by: Cornelia Huck cornelia.h...@de.ibm.com
Signed-off-by: David Hildenbrand d...@linux.vnet.ibm.com
Cc: sta...@vger.kernel.org # v3.15+
Signed-off-by: Christian Borntraeger borntrae...@de.ibm.com
---
arch/s390/kvm/interrupt.c | 2 ++
1 file changed, 2 insertions(+)
diff --git a/arch
of these patches some more days
for external review. Is it ok to send a pull request early next week
or do you want it before 3.19?
There is one non-KVM s390 patch, but it has an ACK from Heiko Carstens
Christian Borntraeger (1):
KVM: s390: reenable LPP facility
David Hildenbrand (1):
KVM
accordingly.
Signed-off-by: Tony Krowiak akrow...@linux.vnet.ibm.com
Signed-off-by: Christian Borntraeger borntrae...@de.ibm.com
---
arch/s390/include/asm/kvm_host.h | 2 ++
arch/s390/kvm/kvm-s390.c | 49 ++--
2 files changed, 49 insertions(+), 2 deletions
...@linux.vnet.ibm.com
Reviewed-by: David Hildenbrand d...@linux.vnet.ibm.com
Signed-off-by: Christian Borntraeger borntrae...@de.ibm.com
---
Documentation/virtual/kvm/api.txt | 58 ++
arch/s390/kvm/kvm-s390.c | 121 ++
include/uapi/linux/kvm.h
commit 7be81a46695d (KVM: s390/facilities: allow TOD-CLOCK steering
facility bit) accidentially disabled the load program parameter
facility bit during rebase for upstream submission (my fault).
Re-add that bit.
Signed-off-by: Christian Borntraeger borntrae...@de.ibm.com
Reviewed-by: David
Hildenbrand d...@linux.vnet.ibm.com
Signed-off-by: Christian Borntraeger borntrae...@de.ibm.com
---
Documentation/virtual/kvm/devices/vm.txt | 45 +++
arch/s390/include/asm/kvm_host.h | 4 +-
arch/s390/include/uapi/asm/kvm.h | 21 +
arch/s390/kvm/kvm-s390.c
...@linux.vnet.ibm.com
Reviewed-by: Cornelia Huck cornelia.h...@de.ibm.com
Reviewed-by: David Hildenbrand d...@linux.vnet.ibm.com
Signed-off-by: Christian Borntraeger borntrae...@de.ibm.com
---
arch/s390/include/asm/kvm_host.h | 21 +
arch/s390/kvm/gaccess.c | 4 +-
arch/s390/kvm/kvm-s390.c
Am 04.02.2015 um 14:03 schrieb Paolo Bonzini:
On 04/02/2015 14:01, Christian Borntraeger wrote:
Am 04.02.2015 um 13:57 schrieb Paolo Bonzini:
On 04/02/2015 10:44, Christian Borntraeger wrote:
From: Ekaterina Tumanova tuman...@linux.vnet.ibm.com
Read the additional data fields (Extended
Am 03.02.2015 um 13:59 schrieb Paolo Bonzini:
On 03/02/2015 13:11, Thomas Huth wrote:
The userspace (QEMU) then can simply call this ioctl when it wants
to read or write from/to virtual guest memory. Then kernel then takes
the IPTE-lock, walks the MMU table of the guest to find out the
Am 04.02.2015 um 11:39 schrieb Paolo Bonzini:
Conny:
I am asking myself, if we should explicitly add a comment in the
virtio-ccw spec, that all accesses are assumed to be with key 0 and
thus never cause key protection. The change/reference bit is set
by the underlying I/O or memory copy
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