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[Qemu-devel] [PATCH 1/2] sysemu.h: Document what MAX_CPUMASK_BITS really
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From: |
Eduardo Habkost |
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Subject: |
[Qemu-devel] [PATCH 1/2] sysemu.h: Document what MAX_CPUMASK_BITS really limits |
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Date: |
Tue, 18 Mar 2014 16:29:23 -0300 |
Signed-off-by: Eduardo Habkost <address@hidden>
---
include/sysemu/sysemu.h | 7 +++++++
1 file changed, 7 insertions(+)
diff --git a/include/sysemu/sysemu.h b/include/sysemu/sysemu.h
index c01304d..865e5f0 100644
--- a/include/sysemu/sysemu.h
+++ b/include/sysemu/sysemu.h
@@ -133,7 +133,14 @@ extern uint8_t qemu_extra_params_fw[2];
extern QEMUClockType rtc_clock;
#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
+
extern int nb_numa_nodes;
extern uint64_t node_mem[MAX_NODES];
extern unsigned long *node_cpumask[MAX_NODES];
--
1.8.5.3