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author | Matthew Rosato <mjrosato@linux.vnet.ibm.com> | 2016-03-04 12:34:32 -0500 |
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committer | Timothy Pearson <tpearson@raptorengineering.com> | 2019-11-29 19:49:36 -0600 |
commit | 31e1f1a77ad0b43ce3e04abc4e9e07842ba36742 (patch) | |
tree | ee47d5a1c78954ee4943b874d9113eedc30d5a1d /hw/s390x | |
parent | 223c80d76b36869c95546d462ad648ea7a71c0a5 (diff) | |
download | hqemu-31e1f1a77ad0b43ce3e04abc4e9e07842ba36742.zip hqemu-31e1f1a77ad0b43ce3e04abc4e9e07842ba36742.tar.gz |
s390x/cpu: Tolerate max_cpus
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>
Message-Id: <1457112875-5209-5-git-send-email-mjrosato@linux.vnet.ibm.com>
Reviewed-by: David Hildenbrand <dahi@linux.vnet.ibm.com>
Signed-off-by: Cornelia Huck <cornelia.huck@de.ibm.com>
Diffstat (limited to 'hw/s390x')
-rw-r--r-- | hw/s390x/s390-virtio.c | 11 |
1 files 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; } } |