On 7/25/23 17:41, Nina Schoetterl-Glausch wrote:
On Fri, 2023-06-30 at 11:17 +0200, Pierre Morel wrote:
On interception of STSI(15.1.x) the System Information Block
(SYSIB) is built from the list of pre-ordered topology entries.
Signed-off-by: Pierre Morel
---
MAINTAINERS
On 7/24/23 12:15, Nina Schoetterl-Glausch wrote:
On Fri, 2023-07-21 at 13:24 +0200, Pierre Morel wrote:
On 7/18/23 18:31, Nina Schoetterl-Glausch wrote:
Reviewed-by: Nina Schoetterl-Glausch
Some notes below.
The s390x/ prefix in the title might suggest that this patch
is s390 specific
On 7/24/23 22:19, Nina Schoetterl-Glausch wrote:
On Fri, 2023-06-30 at 11:17 +0200, Pierre Morel wrote:
The topology information are attributes of the CPU and are
specified during the CPU device creation.
On hot plug we:
- calculate the default values for the topology for drawers,
books
number 2.
The first idea was to separate the patch to ease the review but the
functionality introduced in patch 1 do only make sense with patch 2.
So I would be for squashing the first two patches.
?
On Fri, 2023-06-30 at 11:17 +0200, Pierre Morel wrote:
S390 adds two new SMP levels, drawers
On 7/19/23 16:13, Nina Schoetterl-Glausch wrote:
On Wed, 2023-07-19 at 16:08 +0200, Pierre Morel wrote:
On 7/14/23 18:30, Nina Schoetterl-Glausch wrote:
On Wed, 2023-07-12 at 22:11 +0200, Thomas Huth wrote:
On 12/07/2023 21.37, Nina Schoetterl-Glausch wrote:
On Wed, 2023-07-05 at 12:22
On 7/5/23 12:02, Thomas Huth wrote:
On 30/06/2023 11.17, Pierre Morel wrote:
...
Testing
===
To use the QEMU patches, you will need Linux V6-rc1 or newer,
or use the following Linux mainline patches:
f5ecfee94493 2022-07-20 KVM: s390: resetting the Topology-Change-Report
24fe0195bc19
On 7/5/23 12:32, Thomas Huth wrote:
On 30/06/2023 11.17, Pierre Morel wrote:
This test verifies that QEMU refuses to move a CPU to an
unexistant location.
s/unexistant/nonexistent/ ?
Signed-off-by: Pierre Morel
---
tests/avocado/s390_topology.py | 25 +
1 file
On 7/5/23 12:28, Thomas Huth wrote:
On 30/06/2023 11.17, Pierre Morel wrote:
Let's test that QEMU refuses to setup a dedicated CPU with
low or medium entitlement.
Signed-off-by: Pierre Morel
---
tests/avocado/s390_topology.py | 48 ++
1 file changed, 48
On 7/5/23 12:26, Thomas Huth wrote:
On 30/06/2023 11.17, Pierre Morel wrote:
This test verifies that QMP set-cpu-topology does not accept
to overload a socket.
Signed-off-by: Pierre Morel
---
tests/avocado/s390_topology.py | 25 +
1 file changed, 25 insertions
On 7/14/23 18:30, Nina Schoetterl-Glausch wrote:
On Wed, 2023-07-12 at 22:11 +0200, Thomas Huth wrote:
On 12/07/2023 21.37, Nina Schoetterl-Glausch wrote:
On Wed, 2023-07-05 at 12:22 +0200, Thomas Huth wrote:
On 30/06/2023 11.17, Pierre Morel wrote:
This test takes care to check
Same as for the previous test.
I rewrite this to check the guest view.
On 6/30/23 11:17, Pierre Morel wrote:
A dedicated CPU in vertical polarization can only have
a high entitlement.
Let's check this.
Signed-off-by: Pierre Morel
---
tests/avocado/s390_topology.py | 28
On 7/5/23 10:53, Thomas Huth wrote:
On 30/06/2023 11.17, Pierre Morel wrote:
Polarization is changed on a request from the guest.
Let's verify the polarization is accordingly set by QEMU.
Signed-off-by: Pierre Morel
---
tests/avocado/s390_topology.py | 46
On 7/12/23 22:00, Nina Schoetterl-Glausch wrote:
On Fri, 2023-06-30 at 11:17 +0200, Pierre Morel wrote:
Introduction of the s390x cpu topology core functions and
basic tests.
We test the corelation between the command line and
corRelation
the QMP results in query-cpus-fast for various CPU
On 7/4/23 15:14, Thomas Huth wrote:
On 30/06/2023 11.17, Pierre Morel wrote:
Introduction of the s390x cpu topology core functions and
basic tests.
We test the corelation between the command line and
the QMP results in query-cpus-fast for various CPU topology.
Signed-off-by: Pierre Morel
On 7/18/23 09:59, Nina Schoetterl-Glausch wrote:
On Fri, 2023-06-30 at 11:17 +0200, Pierre Morel wrote:
When the guest asks to change the polarization this change
is forwarded to the upper layer using QAPI.
The upper layer is supposed to take according decisions concerning
CPU provisioning
On 7/18/23 09:54, Nina Schoetterl-Glausch wrote:
On Fri, 2023-06-30 at 11:17 +0200, Pierre Morel wrote:
The modification of the CPU attributes are done through a monitor
command.
It allows to move the core inside the topology tree to optimize
the cache usage in the case the host's hypervisor
On 7/5/23 10:41, Thomas Huth wrote:
On 30/06/2023 11.17, Pierre Morel wrote:
Add some basic examples for the definition of cpu topology
in s390x.
Signed-off-by: Pierre Morel
---
MAINTAINERS | 2 +
docs/devel/index-internals.rst | 1 +
docs/devel/s390-cpu
On 7/5/23 09:58, Thomas Huth wrote:
On 30/06/2023 11.17, Pierre Morel wrote:
The query-cpu-polarization qmp command returns the current
CPU polarization of the machine.
Signed-off-by: Pierre Morel
---
qapi/machine-target.json | 29 +
hw/s390x/cpu-topology.c
On 7/4/23 15:04, Thomas Huth wrote:
On 30/06/2023 11.17, Pierre Morel wrote:
When the guest asks to change the polarization this change
is forwarded to the upper layer using QAPI.
The upper layer is supposed to take according decisions concerning
CPU provisioning.
Signed-off-by: Pierre Morel
On 7/4/23 14:59, Thomas Huth wrote:
On 30/06/2023 11.17, Pierre Morel wrote:
S390 topology adds books and drawers topology containers.
Let's add these to the HMP information for hotpluggable cpus.
Signed-off-by: Pierre Morel
Reviewed-by: Nina Schoetterl-Glausch
---
hw/core/machine-hmp
On 7/4/23 14:55, Thomas Huth wrote:
On 30/06/2023 11.17, Pierre Morel wrote:
S390x provides two more topology attributes, entitlement and dedication.
Let's add these CPU attributes to the QAPI command query-cpu-fast.
Signed-off-by: Pierre Morel
---
qapi/machine.json | 9
On 7/4/23 14:53, Thomas Huth wrote:
On 30/06/2023 11.17, Pierre Morel wrote:
The modification of the CPU attributes are done through a monitor
command.
It allows to move the core inside the topology tree to optimize
the cache usage in the case the host's hypervisor previously
moved the CPU
On 7/4/23 14:16, Thomas Huth wrote:
On 30/06/2023 11.17, Pierre Morel wrote:
When the host supports the CPU topology facility, the PTF
instruction with function code 2 is interpreted by the SIE,
provided that the userland hypervisor activates the interpretation
by using
On 7/4/23 13:40, Thomas Huth wrote:
On 30/06/2023 11.17, Pierre Morel wrote:
On interception of STSI(15.1.x) the System Information Block
(SYSIB) is built from the list of pre-ordered topology entries.
Signed-off-by: Pierre Morel
---
...
diff --git a/target/s390x/cpu.h b/target/s390x
On 7/4/23 12:32, Thomas Huth wrote:
On 30/06/2023 11.17, Pierre Morel wrote:
The topology information are attributes of the CPU and are
specified during the CPU device creation.
On hot plug we:
- calculate the default values for the topology for drawers,
books and sockets in the case
are intercepted
and must be emulated by the userland hypervisor.
During RESET all CPU of the configuration are placed in
horizontal polarity.
Signed-off-by: Pierre Morel
Reviewed-by: Nina Schoetterl-Glausch
---
include/hw/s390x/s390-virtio-ccw.h | 6
hw/s390x/cpu-topology.c| 54
execution).
Signed-off-by: Pierre Morel
Reviewed-by: Thomas Huth
---
hw/s390x/cpu-topology.c | 2 +-
target/s390x/cpu_models.c | 1 +
target/s390x/kvm/kvm.c| 9 +
3 files changed, 11 insertions(+), 1 deletion(-)
diff --git a/hw/s390x/cpu-topology.c b/hw/s390x/cpu-topology.c
index
entitlement and the dedicated attribute to notify
the guest if the host admin modified scheduling or dedication of a vCPU.
With this knowledge the guest has the possibility to optimize the
usage of the vCPUs.
The command has a feature unstable for the moment.
Signed-off-by: Pierre Morel
Let's test that QEMU refuses to setup a dedicated CPU with
low or medium entitlement.
Signed-off-by: Pierre Morel
---
tests/avocado/s390_topology.py | 48 ++
1 file changed, 48 insertions(+)
diff --git a/tests/avocado/s390_topology.py b/tests/avocado
S390 topology adds books and drawers topology containers.
Let's add these to the HMP information for hotpluggable cpus.
Signed-off-by: Pierre Morel
Reviewed-by: Nina Schoetterl-Glausch
---
hw/core/machine-hmp-cmds.c | 6 ++
1 file changed, 6 insertions(+)
diff --git a/hw/core/machine-hmp
During a subsystem reset the Topology-Change-Report is cleared
by the machine.
Let's ask KVM to clear the Modified Topology Change Report (MTCR)
bit of the SCA in the case of a subsystem reset.
Signed-off-by: Pierre Morel
Reviewed-by: Thomas Huth
---
include/hw/s390x/cpu-topology.h | 1
Polarization is changed on a request from the guest.
Let's verify the polarization is accordingly set by QEMU.
Signed-off-by: Pierre Morel
---
tests/avocado/s390_topology.py | 46 ++
1 file changed, 46 insertions(+)
diff --git a/tests/avocado/s390_topology.py b
S390x provides two more topology attributes, entitlement and dedication.
Let's add these CPU attributes to the QAPI command query-cpu-fast.
Signed-off-by: Pierre Morel
---
qapi/machine.json | 9 -
target/s390x/cpu.c | 4
2 files changed, 12 insertions(+), 1 deletion(-)
diff
This test verifies that QEMU refuses to move a CPU to an
unexistant location.
Signed-off-by: Pierre Morel
---
tests/avocado/s390_topology.py | 25 +
1 file changed, 25 insertions(+)
diff --git a/tests/avocado/s390_topology.py b/tests/avocado/s390_topology.py
index
Introduction of the s390x cpu topology core functions and
basic tests.
We test the corelation between the command line and
the QMP results in query-cpus-fast for various CPU topology.
Signed-off-by: Pierre Morel
---
MAINTAINERS| 1 +
tests/avocado/s390_topology.py | 196
On interception of STSI(15.1.x) the System Information Block
(SYSIB) is built from the list of pre-ordered topology entries.
Signed-off-by: Pierre Morel
---
MAINTAINERS | 1 +
qapi/machine-target.json | 14 ++
include/hw/s390x/cpu-topology.h | 25 +++
include
Add some basic examples for the definition of cpu topology
in s390x.
Signed-off-by: Pierre Morel
---
MAINTAINERS| 2 +
docs/devel/index-internals.rst | 1 +
docs/devel/s390-cpu-topology.rst | 170
docs/system/s390x/cpu-topology.rst | 240
This test verifies that QMP set-cpu-topology does not accept
to overload a socket.
Signed-off-by: Pierre Morel
---
tests/avocado/s390_topology.py | 25 +
1 file changed, 25 insertions(+)
diff --git a/tests/avocado/s390_topology.py b/tests/avocado/s390_topology.py
index
This test takes care to check the changes on different entitlements
when the guest requests a polarization change.
Signed-off-by: Pierre Morel
---
tests/avocado/s390_topology.py | 47 ++
1 file changed, 47 insertions(+)
diff --git a/tests/avocado
The query-cpu-polarization qmp command returns the current
CPU polarization of the machine.
Signed-off-by: Pierre Morel
---
qapi/machine-target.json | 29 +
hw/s390x/cpu-topology.c | 8
2 files changed, 37 insertions(+)
diff --git a/qapi/machine
A dedicated CPU in vertical polarization can only have
a high entitlement.
Let's check this.
Signed-off-by: Pierre Morel
---
tests/avocado/s390_topology.py | 28
1 file changed, 28 insertions(+)
diff --git a/tests/avocado/s390_topology.py b/tests/avocado
When the guest asks to change the polarization this change
is forwarded to the upper layer using QAPI.
The upper layer is supposed to take according decisions concerning
CPU provisioning.
Signed-off-by: Pierre Morel
---
qapi/machine-target.json | 33 +
hw/s390x
The maximum nested topology entries is used by the guest to
know how many nested topology are available on the machine.
Let change the MNEST value from 2 to 4 in the SCLP READ INFO
structure now that we support books and drawers.
Signed-off-by: Pierre Morel
Reviewed-by: Nina Schoetterl-Glausch
topology based on its core ID and it gets
defaults values for the modifier attributes.
This way, starting QEMU without specifying the topology can
still get some advantage of the CPU topology.
Signed-off-by: Pierre Morel
---
MAINTAINERS | 6 +
include/hw/s390x/cpu-topology.h
his series.
The admin will want to match the host and the guest topology, taking
into account that the guest does not recognize multithreading.
Consequently, two vCPU assigned to threads of the same real CPU should
preferably be assigned to the same socket of the guest machine.
Regards,
Pierre
Pierre
us provide the SMP properties with books and drawers levels
and S390 CPU with dedication and entitlement,
Signed-off-by: Pierre Morel
---
qapi/machine-common.json| 22 +
qapi/machine.json | 21 ++---
include/hw/boards.h | 10
On 5/22/23 21:47, Nina Schoetterl-Glausch wrote:
On Tue, 2023-04-25 at 18:14 +0200, Pierre Morel wrote:
This test takes care to check the changes on different entitlements
when the guest requests a polarization change.
Signed-off-by: Pierre Morel
---
tests/avocado/s390_topology.py | 56
On 5/22/23 21:45, Nina Schoetterl-Glausch wrote:
Try to be consistent in the spelling of polarization.
You use an s in the title and in the test name below.
On Tue, 2023-04-25 at 18:14 +0200, Pierre Morel wrote:
Polarization is changed on a request from the guest.
Let's verify
On 5/22/23 21:38, Nina Schoetterl-Glausch wrote:
On Tue, 2023-04-25 at 18:14 +0200, Pierre Morel wrote:
Introduction of the s390x cpu topology core functions and
basic tests.
We test the corelation between the command line and
the QMP results in query-cpus-fast for various CPU topology
On 5/3/23 12:23, Cédric Le Goater wrote:
Hello,
On 5/3/23 11:12, Thomas Huth wrote:
On 28/04/2023 14.35, Pierre Morel wrote:
On 4/27/23 15:38, Thomas Huth wrote:
On 25/04/2023 18.14, Pierre Morel wrote:
The topology information are attributes of the CPU and are
specified during the CPU
On 6/12/23 09:55, Cédric Le Goater wrote:
Hello Pierre,
On 4/25/23 18:14, Pierre Morel wrote:
S390x provides two more topology attributes, entitlement and dedication.
Let's add these CPU attributes to the QAPI command query-cpu-fast.
Signed-off-by: Pierre Morel
Reviewed-by: Nina
On 5/10/23 14:04, Nina Schoetterl-Glausch wrote:
On Tue, 2023-04-25 at 18:14 +0200, Pierre Morel wrote:
The query-cpu-polarization qmp command returns the current
CPU polarization of the machine.
Signed-off-by: Pierre Morel
---
qapi/machine-target.json | 30
On 5/8/23 23:47, Nina Schoetterl-Glausch wrote:
On Tue, 2023-04-25 at 18:14 +0200, Pierre Morel wrote:
When the guest asks to change the polarization this change
is forwarded to the upper layer using QAPI.
The upper layer is supposed to take according decisions concerning
CPU provisioning
On 5/8/23 21:42, Nina Schoetterl-Glausch wrote:
On Tue, 2023-04-25 at 18:14 +0200, Pierre Morel wrote:
The modification of the CPU attributes are done through a monitor
command.
It allows to move the core inside the topology tree to optimize
the cache usage in the case the host's hypervisor
On 5/8/23 21:49, Nina Schoetterl-Glausch wrote:
On Tue, 2023-04-25 at 18:14 +0200, Pierre Morel wrote:
S390 topology adds books and drawers topology containers.
Let's add these to the HMP information for hotpluggable cpus.
Signed-off-by: Pierre Morel
Reviewed-by: Nina Schoetterl-Glausch
On 5/4/23 13:03, Nina Schoetterl-Glausch wrote:
On Tue, 2023-04-25 at 18:14 +0200, Pierre Morel wrote:
When the host supports the CPU topology facility, the PTF
instruction with function code 2 is interpreted by the SIE,
provided that the userland hypervisor activates the interpretation
On 4/27/23 10:04, Thomas Huth wrote:
On 25/04/2023 18.14, Pierre Morel wrote:
S390 adds two new SMP levels, drawers and books to the CPU
topology.
The S390 CPU have specific topology features like dedication
and entitlement to give to the guest indications on the host
vCPUs scheduling
On 4/27/23 10:04, Thomas Huth wrote:
On 25/04/2023 18.14, Pierre Morel wrote:
S390 adds two new SMP levels, drawers and books to the CPU
topology.
The S390 CPU have specific topology features like dedication
and entitlement to give to the guest indications on the host
vCPUs scheduling
On 5/2/23 19:22, Nina Schoetterl-Glausch wrote:
On Tue, 2023-04-25 at 18:14 +0200, Pierre Morel wrote:
On interception of STSI(15.1.x) the System Information Block
(SYSIB) is built from the list of pre-ordered topology entries.
Signed-off-by: Pierre Morel
---
MAINTAINERS
On 5/2/23 14:30, Cédric Le Goater wrote:
On 4/25/23 18:14, Pierre Morel wrote:
The topology information are attributes of the CPU and are
specified during the CPU device creation.
[...]
+
+/**
+ * s390_topology_init:
+ * @ms: the machine state where the machine topology is defined
On 5/2/23 15:48, Cédric Le Goater wrote:
On 5/2/23 14:05, Cédric Le Goater wrote:
On 4/25/23 18:14, Pierre Morel wrote:
S390 adds two new SMP levels, drawers and books to the CPU
topology.
The S390 CPU have specific topology features like dedication
and entitlement to give to the guest
On 4/27/23 15:38, Thomas Huth wrote:
On 25/04/2023 18.14, Pierre Morel wrote:
The topology information are attributes of the CPU and are
specified during the CPU device creation.
On hot plug we:
- calculate the default values for the topology for drawers,
books and sockets in the case
On 4/27/23 19:01, Thomas Huth wrote:
On 25/04/2023 18.14, Pierre Morel wrote:
On interception of STSI(15.1.x) the System Information Block
(SYSIB) is built from the list of pre-ordered topology entries.
Signed-off-by: Pierre Morel
---
MAINTAINERS | 1 +
include/hw
On 4/27/23 10:04, Thomas Huth wrote:
On 25/04/2023 18.14, Pierre Morel wrote:
S390 adds two new SMP levels, drawers and books to the CPU
topology.
The S390 CPU have specific topology features like dedication
and entitlement to give to the guest indications on the host
vCPUs scheduling
entitlement and the dedicated attribute to notify
the guest if the host admin modified scheduling or dedication of a vCPU.
With this knowledge the guest has the possibility to optimize the
usage of the vCPUs.
The command has a feature unstable for the moment.
Signed-off-by: Pierre Morel
Introduction of the s390x cpu topology core functions and
basic tests.
We test the corelation between the command line and
the QMP results in query-cpus-fast for various CPU topology.
Signed-off-by: Pierre Morel
---
MAINTAINERS| 1 +
tests/avocado/s390_topology.py | 208
st machine.
Regards,
Pierre
Pierre Morel (21):
s390x/cpu topology: add s390 specifics to CPU topology
s390x/cpu topology: add topology entries on CPU hotplug
target/s390x/cpu topology: handle STSI(15) and build the SYSIB
s390x/sclp: reporting the maximum nested topology entries
s390x/cp
The query-cpu-polarization qmp command returns the current
CPU polarization of the machine.
Signed-off-by: Pierre Morel
---
qapi/machine-target.json | 30 ++
hw/s390x/cpu-topology.c | 14 ++
2 files changed, 44 insertions(+)
diff --git a/qapi/machine
The maximum nested topology entries is used by the guest to
know how many nested topology are available on the machine.
Let change the MNEST value from 2 to 4 in the SCLP READ INFO
structure now that we support books and drawers.
Signed-off-by: Pierre Morel
Reviewed-by: Nina Schoetterl-Glausch
Add some basic examples for the definition of cpu topology
in s390x.
Signed-off-by: Pierre Morel
---
MAINTAINERS| 2 +
docs/devel/index-internals.rst | 1 +
docs/devel/s390-cpu-topology.rst | 162 +++
docs/system/s390x/cpu-topology.rst | 240
us provide the SMP properties with books and drawers levels
and S390 CPU with dedication and entitlement,
Signed-off-by: Pierre Morel
---
qapi/machine-common.json| 22
qapi/machine-target.json| 12 +++
qapi/machine.json | 17
This test verifies that QEMU refuses to move a CPU to an
unexistant location.
Signed-off-by: Pierre Morel
---
tests/avocado/s390_topology.py | 25 +
1 file changed, 25 insertions(+)
diff --git a/tests/avocado/s390_topology.py b/tests/avocado/s390_topology.py
index
This test takes care to check the changes on different entitlements
when the guest requests a polarization change.
Signed-off-by: Pierre Morel
---
tests/avocado/s390_topology.py | 56 ++
1 file changed, 56 insertions(+)
diff --git a/tests/avocado
This test verifies that QMP set-cpu-topology does not accept
to overload a socket.
Signed-off-by: Pierre Morel
---
tests/avocado/s390_topology.py | 27 +++
1 file changed, 27 insertions(+)
diff --git a/tests/avocado/s390_topology.py b/tests/avocado/s390_topology.py
Polarization is changed on a request from the guest.
Let's verify the polarization is accordingly set by QEMU.
Signed-off-by: Pierre Morel
---
tests/avocado/s390_topology.py | 38 ++
1 file changed, 38 insertions(+)
diff --git a/tests/avocado/s390_topology.py b
S390x provides two more topology attributes, entitlement and dedication.
Let's add these CPU attributes to the QAPI command query-cpu-fast.
Signed-off-by: Pierre Morel
Reviewed-by: Nina Schoetterl-Glausch
Reviewed-by: Thomas Huth
---
qapi/machine.json | 9 -
hw/core/machine
During a subsystem reset the Topology-Change-Report is cleared
by the machine.
Let's ask KVM to clear the Modified Topology Change Report (MTCR)
bit of the SCA in the case of a subsystem reset.
Signed-off-by: Pierre Morel
Reviewed-by: Thomas Huth
---
include/hw/s390x/cpu-topology.h | 1
This test verifies that the qmp query query-cpu-polarization
reports correctly the polarization when the guest requests
a polarization change.
Signed-off-by: Pierre Morel
---
tests/avocado/s390_topology.py | 33 +
1 file changed, 33 insertions(+)
diff --git
When the guest asks to change the polarization this change
is forwarded to the upper layer using QAPI.
The upper layer is supposed to take according decisions concerning
CPU provisioning.
Signed-off-by: Pierre Morel
---
qapi/machine-target.json | 33 +
hw/s390x
On interception of STSI(15.1.x) the System Information Block
(SYSIB) is built from the list of pre-ordered topology entries.
Signed-off-by: Pierre Morel
---
MAINTAINERS | 1 +
include/hw/s390x/cpu-topology.h | 24 +++
include/hw/s390x/sclp.h | 1 +
target/s390x
Let's test that QEMU refuses to setup a dedicated CPU with
low or medium entitlement.
Signed-off-by: Pierre Morel
---
tests/avocado/s390_topology.py | 51 ++
1 file changed, 51 insertions(+)
diff --git a/tests/avocado/s390_topology.py b/tests/avocado
topology based on its core ID and it gets
defaults values for the modifier attributes.
This way, starting QEMU without specifying the topology can
still get some advantage of the CPU topology.
Signed-off-by: Pierre Morel
---
MAINTAINERS | 6 +
include/hw/s390x/cpu-topology.h
are intercepted
and must be emulated by the userland hypervisor.
During RESET all CPU of the configuration are placed in
horizontal polarity.
Signed-off-by: Pierre Morel
---
include/hw/s390x/s390-virtio-ccw.h | 6
hw/s390x/cpu-topology.c| 51 ++
target/s390x
S390 topology adds books and drawers topology containers.
Let's add these to the HMP information for hotpluggable cpus.
Signed-off-by: Pierre Morel
---
hw/core/machine-hmp-cmds.c | 6 ++
1 file changed, 6 insertions(+)
diff --git a/hw/core/machine-hmp-cmds.c b/hw/core/machine-hmp-cmds.c
A dedicated CPU in vertical polarization can only have
a high entitlement.
Let's check this.
Signed-off-by: Pierre Morel
---
tests/avocado/s390_topology.py | 34 ++
1 file changed, 34 insertions(+)
diff --git a/tests/avocado/s390_topology.py b/tests/avocado
execution).
Signed-off-by: Pierre Morel
Reviewed-by: Thomas Huth
---
hw/s390x/cpu-topology.c | 2 +-
target/s390x/cpu_models.c | 1 +
target/s390x/kvm/kvm.c| 9 +
3 files changed, 11 insertions(+), 1 deletion(-)
diff --git a/hw/s390x/cpu-topology.c b/hw/s390x/cpu-topology.c
index
On 4/4/23 11:21, Cédric Le Goater wrote:
On 4/3/23 18:28, Pierre Morel wrote:
Introduction of the s390x cpu topology core functions and
basic tests.
We test the corelation between the command line and
the QMP results in query-cpus-fast for various CPU topology.
Signed-off-by: Pierre Morel
On 4/25/23 11:27, Nina Schoetterl-Glausch wrote:
On Tue, 2023-04-25 at 10:45 +0200, Pierre Morel wrote:
On 4/24/23 17:32, Nina Schoetterl-Glausch wrote:
On Fri, 2023-04-21 at 12:20 +0200, Pierre Morel wrote:
On 4/20/23 10:59, Nina Schoetterl-Glausch wrote:
On Mon, 2023-04-03 at 18:28 +0200
On 4/24/23 17:32, Nina Schoetterl-Glausch wrote:
On Fri, 2023-04-21 at 12:20 +0200, Pierre Morel wrote:
On 4/20/23 10:59, Nina Schoetterl-Glausch wrote:
On Mon, 2023-04-03 at 18:28 +0200, Pierre Morel wrote:
[..]
In the next version with entitlement being an enum it is right.
However
On 4/20/23 10:59, Nina Schoetterl-Glausch wrote:
On Mon, 2023-04-03 at 18:28 +0200, Pierre Morel wrote:
The topology information are attributes of the CPU and are
specified during the CPU device creation.
On hot plug we:
- calculate the default values for the topology for drawers,
books
On 4/18/23 17:57, Daniel P. Berrangé wrote:
On Tue, Apr 04, 2023 at 02:26:05PM +0200, Pierre Morel wrote:
On 4/4/23 09:03, Cédric Le Goater wrote:
On 4/3/23 18:28, Pierre Morel wrote:
diff --git a/include/hw/s390x/cpu-topology.h
b/include/hw/s390x/cpu-topology.h
new file mode 100644
index
On 4/18/23 14:38, Nina Schoetterl-Glausch wrote:
On Tue, 2023-04-18 at 12:01 +0200, Pierre Morel wrote:
On 4/18/23 10:53, Nina Schoetterl-Glausch wrote:
On Mon, 2023-04-03 at 18:28 +0200, Pierre Morel wrote:
S390 adds two new SMP levels, drawers and books to the CPU
topology.
The S390 CPU
On 4/18/23 12:15, Thomas Huth wrote:
On 18/04/2023 12.01, Pierre Morel wrote:
On 4/18/23 10:53, Nina Schoetterl-Glausch wrote:
On Mon, 2023-04-03 at 18:28 +0200, Pierre Morel wrote:
S390 adds two new SMP levels, drawers and books to the CPU
topology.
The S390 CPU have specific topology
On 4/18/23 10:53, Nina Schoetterl-Glausch wrote:
On Mon, 2023-04-03 at 18:28 +0200, Pierre Morel wrote:
S390 adds two new SMP levels, drawers and books to the CPU
topology.
The S390 CPU have specific topology features like dedication
and entitlement to give to the guest indications
On 4/11/23 14:27, Nina Schoetterl-Glausch wrote:
On Tue, 2023-04-04 at 16:04 +0200, Pierre Morel wrote:
On 4/4/23 14:35, Cédric Le Goater wrote:
@@ -0,0 +1,15 @@
+/*
+ * CPU Topology
+ *
+ * Copyright IBM Corp. 2022
Shouldn't we have some range : 2022-2023 ?
There was a discussion
On 4/4/23 14:35, Cédric Le Goater wrote:
@@ -0,0 +1,15 @@
+/*
+ * CPU Topology
+ *
+ * Copyright IBM Corp. 2022
Shouldn't we have some range : 2022-2023 ?
There was a discussion on this in the first spins, I think to
remember that Nina wanted 22 and Thomas 23,
now we have a third
On 4/4/23 11:22, Cédric Le Goater wrote:
On 4/3/23 18:28, Pierre Morel wrote:
Polarization is changed on a request from the guest.
Let's verify the polarization is accordingly set by QEMU.
Signed-off-by: Pierre Morel
---
tests/avocado/s390_topology.py | 38
On 4/4/23 09:03, Cédric Le Goater wrote:
On 4/3/23 18:28, Pierre Morel wrote:
S390 adds two new SMP levels, drawers and books to the CPU
topology.
The S390 CPU have specific topology features like dedication
and entitlement to give to the guest indications on the host
vCPUs scheduling
On 4/4/23 11:19, Cédric Le Goater wrote:
On 4/3/23 18:29, Pierre Morel wrote:
A dedicated CPU in vertical polarization can only have
a high entitlement.
Let's check this.
Signed-off-by: Pierre Morel
---
tests/avocado/s390_topology.py | 43 +-
1 file
On 4/4/23 09:31, Cédric Le Goater wrote:
On 4/3/23 18:28, Pierre Morel wrote:
[...]
+
+/**
+ * s390_socket_nb:
+ * @cpu: s390x CPU
+ *
+ * Returns the socket number used inside the cores_per_socket array
+ * for a cpu.
+ */
+int s390_socket_nb(S390CPU *cpu)
s390_socket_nb() doesn't
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