From: Igor Mammedov <imamm...@redhat.com>
it's was deprecated since 3.1
Support for invalid topologies is removed, the user must ensure
that topologies described with -smp include all possible cpus,
i.e. (sockets * cores * threads) == maxcpus or QEMU will
exit with error.
Signed-off-by: Igor Mammedov <imamm...@redhat.com>
Acked-by:
Message-Id: <20200911133202.938754-1-imamm...@redhat.com>
Signed-off-by: Paolo Bonzini <pbonz...@redhat.com>
---
docs/system/deprecated.rst | 26 +++++++++++++-------------
hw/core/machine.c | 16 ++++------------
hw/i386/pc.c | 16 ++++------------
3 files changed, 21 insertions(+), 37 deletions(-)
diff --git a/docs/system/deprecated.rst b/docs/system/deprecated.rst
index e78d03038f..17703d18fd 100644
--- a/docs/system/deprecated.rst
+++ b/docs/system/deprecated.rst
@@ -47,19 +47,6 @@ The 'file' driver for drives is no longer appropriate for
character or host
devices and will only accept regular files (S_IFREG). The correct driver
for these file types is 'host_cdrom' or 'host_device' as appropriate.
-``-smp`` (invalid topologies) (since 3.1)
-'''''''''''''''''''''''''''''''''''''''''
-
-CPU topology properties should describe whole machine topology including
-possible CPUs.
-
-However, historically it was possible to start QEMU with an incorrect topology
-where *n* <= *sockets* * *cores* * *threads* < *maxcpus*,
-which could lead to an incorrect topology enumeration by the guest.
-Support for invalid topologies will be removed, the user must ensure
-topologies described with -smp include all possible cpus, i.e.
-*sockets* * *cores* * *threads* = *maxcpus*.
-
``-vnc acl`` (since 4.0.0)
''''''''''''''''''''''''''
@@ -646,6 +633,19 @@ as ignored. Currently, users are responsible for making
sure the backing storage
specified with ``-mem-path`` can actually provide the guest RAM configured with
``-m`` and QEMU fails to start up if RAM allocation is unsuccessful.
+``-smp`` (invalid topologies) (removed 5.2)
+'''''''''''''''''''''''''''''''''''''''''''
+
+CPU topology properties should describe whole machine topology including
+possible CPUs.
+
+However, historically it was possible to start QEMU with an incorrect topology
+where *n* <= *sockets* * *cores* * *threads* < *maxcpus*,
+which could lead to an incorrect topology enumeration by the guest.
+Support for invalid topologies is removed, the user must ensure
+topologies described with -smp include all possible cpus, i.e.
+*sockets* * *cores* * *threads* = *maxcpus*.
+
Block devices
-------------
diff --git a/hw/core/machine.c b/hw/core/machine.c
index f70d388e86..d25149685e 100644
--- a/hw/core/machine.c
+++ b/hw/core/machine.c
@@ -754,23 +754,15 @@ static void smp_parse(MachineState *ms, QemuOpts *opts)
exit(1);
}
- if (sockets * cores * threads > ms->smp.max_cpus) {
- error_report("cpu topology: "
- "sockets (%u) * cores (%u) * threads (%u) > "
- "maxcpus (%u)",
+ if (sockets * cores * threads != ms->smp.max_cpus) {
+ error_report("Invalid CPU topology: "
+ "sockets (%u) * cores (%u) * threads (%u) "
+ "!= maxcpus (%u)",
sockets, cores, threads,
ms->smp.max_cpus);
exit(1);
}
- if (sockets * cores * threads != ms->smp.max_cpus) {
- warn_report("Invalid CPU topology deprecated: "
- "sockets (%u) * cores (%u) * threads (%u) "
- "!= maxcpus (%u)",
- sockets, cores, threads,
- ms->smp.max_cpus);
- }
-
ms->smp.cpus = cpus;
ms->smp.cores = cores;
ms->smp.threads = threads;
diff --git a/hw/i386/pc.c b/hw/i386/pc.c
index b55369357e..1e2ab5ebe7 100644
--- a/hw/i386/pc.c
+++ b/hw/i386/pc.c
@@ -746,23 +746,15 @@ void pc_smp_parse(MachineState *ms, QemuOpts *opts)
exit(1);
}
- if (sockets * dies * cores * threads > ms->smp.max_cpus) {
- error_report("cpu topology: "
- "sockets (%u) * dies (%u) * cores (%u) * threads (%u)
> "
- "maxcpus (%u)",
+ if (sockets * dies * cores * threads != ms->smp.max_cpus) {
+ error_report("Invalid CPU topology deprecated: "
+ "sockets (%u) * dies (%u) * cores (%u) * threads (%u)
"
+ "!= maxcpus (%u)",
sockets, dies, cores, threads,
ms->smp.max_cpus);
exit(1);
}
- if (sockets * dies * cores * threads != ms->smp.max_cpus) {
- warn_report("Invalid CPU topology deprecated: "
- "sockets (%u) * dies (%u) * cores (%u) * threads (%u) "
- "!= maxcpus (%u)",
- sockets, dies, cores, threads,
- ms->smp.max_cpus);
- }
-
ms->smp.cpus = cpus;
ms->smp.cores = cores;
ms->smp.threads = threads;
--
2.26.2
