| Message ID | 1457112875-5209-5-git-send-email-mjrosato@linux.vnet.ibm.com (mailing list archive) |
|---|---|
| State | New, archived |
| Headers | show |
> Once hotplug is enabled, interrupts may come in for CPUs > with an address > smp_cpus. Allocate for this and allow > search routines to look beyond smp_cpus. > > Signed-off-by: Matthew Rosato <mjrosato@linux.vnet.ibm.com> Reviewed-by: David Hildenbrand <dahi@linux.vnet.ibm.com> > --- > hw/s390x/s390-virtio.c | 11 ++++++----- > 1 file changed, 6 insertions(+), 5 deletions(-) > > diff --git a/hw/s390x/s390-virtio.c b/hw/s390x/s390-virtio.c > index c501a48..57c3c88 100644 > --- a/hw/s390x/s390-virtio.c > +++ b/hw/s390x/s390-virtio.c > @@ -58,15 +58,16 @@ > #define S390_TOD_CLOCK_VALUE_MISSING 0x00 > #define S390_TOD_CLOCK_VALUE_PRESENT 0x01 > > -static S390CPU **ipi_states; > +static S390CPU **cpu_states; > > S390CPU *s390_cpu_addr2state(uint16_t cpu_addr) > { > - if (cpu_addr >= smp_cpus) { > + if (cpu_addr >= max_cpus) { > return NULL; > } > > - return ipi_states[cpu_addr]; > + /* Fast lookup via CPU ID */ > + return cpu_states[cpu_addr]; > } > > void s390_init_ipl_dev(const char *kernel_filename, > @@ -101,14 +102,14 @@ void s390_init_cpus(MachineState *machine) > machine->cpu_model = "host"; > } > > - ipi_states = g_malloc(sizeof(S390CPU *) * smp_cpus); > + cpu_states = g_malloc0(sizeof(S390CPU *) * max_cpus); > > for (i = 0; i < smp_cpus; i++) { > S390CPU *cpu; > > cpu = cpu_s390x_init(machine->cpu_model); > > - ipi_states[i] = cpu; > + cpu_states[i] = cpu; > } > } > David
diff --git a/hw/s390x/s390-virtio.c b/hw/s390x/s390-virtio.c index c501a48..57c3c88 100644 --- a/hw/s390x/s390-virtio.c +++ b/hw/s390x/s390-virtio.c @@ -58,15 +58,16 @@ #define S390_TOD_CLOCK_VALUE_MISSING 0x00 #define S390_TOD_CLOCK_VALUE_PRESENT 0x01 -static S390CPU **ipi_states; +static S390CPU **cpu_states; S390CPU *s390_cpu_addr2state(uint16_t cpu_addr) { - if (cpu_addr >= smp_cpus) { + if (cpu_addr >= max_cpus) { return NULL; } - return ipi_states[cpu_addr]; + /* Fast lookup via CPU ID */ + return cpu_states[cpu_addr]; } void s390_init_ipl_dev(const char *kernel_filename, @@ -101,14 +102,14 @@ void s390_init_cpus(MachineState *machine) machine->cpu_model = "host"; } - ipi_states = g_malloc(sizeof(S390CPU *) * smp_cpus); + cpu_states = g_malloc0(sizeof(S390CPU *) * max_cpus); for (i = 0; i < smp_cpus; i++) { S390CPU *cpu; cpu = cpu_s390x_init(machine->cpu_model); - ipi_states[i] = cpu; + cpu_states[i] = cpu; } }
Once hotplug is enabled, interrupts may come in for CPUs with an address > smp_cpus. Allocate for this and allow search routines to look beyond smp_cpus. Signed-off-by: Matthew Rosato <mjrosato@linux.vnet.ibm.com> --- hw/s390x/s390-virtio.c | 11 ++++++----- 1 file changed, 6 insertions(+), 5 deletions(-)