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[v3,01/10] hw/boards: Add struct CpuTopology to MachineState

Message ID 20190518205428.90532-2-like.xu@linux.intel.com (mailing list archive)
State New, archived
Headers show
Series Refactor cpu topo into machine properties | expand

Commit Message

Like Xu May 18, 2019, 8:54 p.m. UTC 
The cpu topology property CpuTopology is added to the MachineState
and its members are initialized with the leagcy global smp variables.

From this commit, the code in the system emulation mode is supposed to
use cpu topology variables from MachineState instead of the global ones
defined in vl.c and there is no semantic change.

Suggested-by: Igor Mammedov <imammedo@redhat.com>
Suggested-by: Eduardo Habkost <ehabkost@redhat.com>
Signed-off-by: Like Xu <like.xu@linux.intel.com>
Reviewed-by: Alistair Francis <alistair.francis@wdc.com>
---
 include/hw/boards.h | 15 +++++++++++++++
 vl.c                |  5 +++++
 2 files changed, 20 insertions(+)
diff mbox series

Patch

diff --git a/include/hw/boards.h b/include/hw/boards.h
index 6f7916f88f..bc23b5db1d 100644
--- a/include/hw/boards.h
+++ b/include/hw/boards.h
@@ -230,6 +230,20 @@  typedef struct DeviceMemoryState {
     MemoryRegion mr;
 } DeviceMemoryState;
 
+/**
+ * CpuTopology:
+ * @cpus: the number of present logical processors on the machine
+ * @cores: the number of cores in one package
+ * @threads: the number of threads in one core
+ * @max_cpus: the maximum number of logical processors on the machine
+ */
+typedef struct CpuTopology {
+    unsigned int cpus;
+    unsigned int cores;
+    unsigned int threads;
+    unsigned int max_cpus;
+} CpuTopology;
+
 /**
  * MachineState:
  */
@@ -272,6 +286,7 @@  struct MachineState {
     const char *cpu_type;
     AccelState *accelerator;
     CPUArchIdList *possible_cpus;
+    CpuTopology smp;
     struct NVDIMMState *nvdimms_state;
 };
 
diff --git a/vl.c b/vl.c
index c8ca9ff6ff..40b006577b 100644
--- a/vl.c
+++ b/vl.c
@@ -4133,6 +4133,11 @@  int main(int argc, char **argv, char **envp)
 
     smp_parse(qemu_opts_find(qemu_find_opts("smp-opts"), NULL));
 
+    current_machine->smp.cpus = smp_cpus;
+    current_machine->smp.max_cpus = max_cpus;
+    current_machine->smp.cores = smp_cores;
+    current_machine->smp.threads = smp_threads;
+
     /* sanity-check smp_cpus and max_cpus against machine_class */
     if (smp_cpus < machine_class->min_cpus) {
         error_report("Invalid SMP CPUs %d. The min CPUs "