Message ID | 20221118104508.768274-7-wei.chen@arm.com (mailing list archive) |
---|---|
State | New, archived |
Headers | show
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Series |
Device tree based NUMA support for Arm - Part#2
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diff --git a/xen/arch/Kconfig b/xen/arch/Kconfig index f16eb0df43..7028f7b74f 100644 --- a/xen/arch/Kconfig +++ b/xen/arch/Kconfig @@ -17,3 +17,14 @@ config NR_CPUS For CPU cores which support Simultaneous Multi-Threading or similar technologies, this the number of logical threads which Xen will support. + +config NR_NUMA_NODES + int "Maximum number of NUMA nodes supported" + range 2 64 + default "64" + depends on NUMA + help + Controls the build-time size of various arrays and bitmaps + associated with multiple-nodes management. It is the upper bound of + the number of NUMA nodes that the scheduler, memory allocation and + other NUMA-aware components can handle. diff --git a/xen/arch/x86/include/asm/numa.h b/xen/arch/x86/include/asm/numa.h index 2ca3475271..7866afa408 100644 --- a/xen/arch/x86/include/asm/numa.h +++ b/xen/arch/x86/include/asm/numa.h @@ -3,8 +3,6 @@ #include <xen/cpumask.h> -#define NODES_SHIFT 6 - typedef u8 nodeid_t; extern int srat_rev; diff --git a/xen/include/xen/numa.h b/xen/include/xen/numa.h index 04ecaf7769..71a5f837b3 100644 --- a/xen/include/xen/numa.h +++ b/xen/include/xen/numa.h @@ -3,14 +3,15 @@ #include <asm/numa.h> -#ifndef NODES_SHIFT -#define NODES_SHIFT 0 -#endif - #define NUMA_NO_NODE 0xFF #define NUMA_NO_DISTANCE 0xFF -#define MAX_NUMNODES (1 << NODES_SHIFT) +#ifdef CONFIG_NR_NUMA_NODES +#define MAX_NUMNODES CONFIG_NR_NUMA_NODES +#else +#define MAX_NUMNODES 1 +#endif + #define NR_NODE_MEMBLKS (MAX_NUMNODES * 2) #define vcpu_to_node(v) (cpu_to_node((v)->processor))