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CPU topology: extend with s390 specifics

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S390 adds two new SMP levels, drawers and books to the CPU
topology.
S390 CPUs have specific topology features like dedication and
entitlement. These indicate to the guest information on host
vCPU scheduling and help the guest make better scheduling decisions.

Add the new levels to the relevant QAPI structs.
Add all the supported topology levels, dedication and entitlement
as properties to S390 CPUs.
Create machine-common.json so we can later include it in
machine-target.json also.

Signed-off-by: Pierre Morel <pmorel@linux.ibm.com>
Reviewed-by: Nina Schoetterl-Glausch <nsg@linux.ibm.com>
Co-developed-by: Nina Schoetterl-Glausch <nsg@linux.ibm.com>
Reviewed-by: Thomas Huth <thuth@redhat.com>
Signed-off-by: Nina Schoetterl-Glausch <nsg@linux.ibm.com>
Message-ID: <20231016183925.2384704-3-nsg@linux.ibm.com>
Signed-off-by: Thomas Huth <thuth@redhat.com>
This commit is contained in:
Pierre Morel 2023-10-16 20:39:06 +02:00 • committed by Thomas Huth
parent 3da4aef81c
commit 5de1aff255
15 changed files with 141 additions and 13 deletions
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6
system/vl.c
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@ -726,6 +726,12 @@ static QemuOptsList qemu_smp_opts = {
{
.name = "cpus",
.type = QEMU_OPT_NUMBER,
}, {
.name = "drawers",
.type = QEMU_OPT_NUMBER,
}, {
.name = "books",
.type = QEMU_OPT_NUMBER,
}, {
.name = "sockets",
.type = QEMU_OPT_NUMBER,