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sysemu.h: Document what MAX_CPUMASK_BITS really limits

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Signed-off-by: Eduardo Habkost <ehabkost@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
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Eduardo Habkost 2014-03-18 16:29:23 -03:00 committed by Michael S. Tsirkin
parent 821e322786
commit d2995916ea
1 changed files with 7 additions and 0 deletions
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7
include/sysemu/sysemu.h
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@ -133,7 +133,14 @@ extern uint8_t qemu_extra_params_fw[2];
extern QEMUClockType rtc_clock; extern QEMUClockType rtc_clock;
#define MAX_NODES 64 #define MAX_NODES 64
/* The following shall be true for all CPUs:
* cpu->cpu_index < max_cpus <= MAX_CPUMASK_BITS
*
* Note that cpu->get_arch_id() may be larger than MAX_CPUMASK_BITS.
*/
#define MAX_CPUMASK_BITS 255 #define MAX_CPUMASK_BITS 255
extern int nb_numa_nodes; extern int nb_numa_nodes;
extern uint64_t node_mem[MAX_NODES]; extern uint64_t node_mem[MAX_NODES];
extern unsigned long *node_cpumask[MAX_NODES]; extern unsigned long *node_cpumask[MAX_NODES];