diff options
| author | Igor Mammedov <imammedo@redhat.com> | 2016-10-20 16:58:42 +0200 |
|---|---|---|
| committer | Eduardo Habkost <ehabkost@redhat.com> | 2016-10-24 17:29:15 -0200 |
| commit | 080ac219cc7d9c55adf925c3545b7450055ad625 (patch) | |
| tree | 851d8c7b19b6b9c0e5fe2049603eb54ededc2fe4 /include | |
| parent | 079019f2e319bd1279681b6c1d7dde785d09e69e (diff) | |
pc: Add 'etc/boot-cpus' fw_cfg file for machine with more than 255 CPUs
Currently firmware uses 1 byte at 0x5F offset in RTC CMOS
to get number of CPUs present at boot. However 1 byte is
not enough to handle more than 255 CPUs. So add a new
fw_cfg file that would allow QEMU to tell it.
For compat reasons add file only for machine types that
support more than 255 CPUs.
Signed-off-by: Igor Mammedov <imammedo@redhat.com>
Reviewed-by: Eduardo Habkost <ehabkost@redhat.com>
Signed-off-by: Eduardo Habkost <ehabkost@redhat.com>
Diffstat (limited to 'include')
| -rw-r--r-- | include/hw/i386/pc.h | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/include/hw/i386/pc.h b/include/hw/i386/pc.h index b16c448249..17fff80c8a 100644 --- a/include/hw/i386/pc.h +++ b/include/hw/i386/pc.h @@ -37,6 +37,7 @@ /** * PCMachineState: * @acpi_dev: link to ACPI PM device that performs ACPI hotplug handling + * @boot_cpus_le: number of present VCPUs, referenced by 'etc/boot-cpus' fw_cfg */ struct PCMachineState { /*< private >*/ @@ -69,6 +70,7 @@ struct PCMachineState { bool apic_xrupt_override; unsigned apic_id_limit; CPUArchIdList *possible_cpus; + uint16_t boot_cpus_le; /* NUMA information: */ uint64_t numa_nodes; |