diff options
| -rw-r--r-- | hw/mem/pc-dimm.c | 4 | ||||
| -rw-r--r-- | include/sysemu/numa.h | 10 | ||||
| -rw-r--r-- | numa.c | 26 |
3 files changed, 40 insertions, 0 deletions
diff --git a/hw/mem/pc-dimm.c b/hw/mem/pc-dimm.c index 98971b7a91..bb04862de8 100644 --- a/hw/mem/pc-dimm.c +++ b/hw/mem/pc-dimm.c @@ -97,6 +97,7 @@ void pc_dimm_memory_plug(DeviceState *dev, MemoryHotplugState *hpms, memory_region_add_subregion(&hpms->mr, addr - hpms->base, mr); vmstate_register_ram(mr, dev); + numa_set_mem_node_id(addr, memory_region_size(mr), dimm->node); out: error_propagate(errp, local_err); @@ -105,6 +106,9 @@ out: void pc_dimm_memory_unplug(DeviceState *dev, MemoryHotplugState *hpms, MemoryRegion *mr) { + PCDIMMDevice *dimm = PC_DIMM(dev); + + numa_unset_mem_node_id(dimm->addr, memory_region_size(mr), dimm->node); memory_region_del_subregion(&hpms->mr, mr); vmstate_unregister_ram(mr, dev); } diff --git a/include/sysemu/numa.h b/include/sysemu/numa.h index 6523b4d7f9..7176364062 100644 --- a/include/sysemu/numa.h +++ b/include/sysemu/numa.h @@ -10,16 +10,26 @@ extern int nb_numa_nodes; /* Number of NUMA nodes */ +struct numa_addr_range { + ram_addr_t mem_start; + ram_addr_t mem_end; + QLIST_ENTRY(numa_addr_range) entry; +}; + typedef struct node_info { uint64_t node_mem; DECLARE_BITMAP(node_cpu, MAX_CPUMASK_BITS); struct HostMemoryBackend *node_memdev; bool present; + QLIST_HEAD(, numa_addr_range) addr; /* List to store address ranges */ } NodeInfo; + extern NodeInfo numa_info[MAX_NODES]; void parse_numa_opts(MachineClass *mc); void numa_post_machine_init(void); void query_numa_node_mem(uint64_t node_mem[]); extern QemuOptsList qemu_numa_opts; +void numa_set_mem_node_id(ram_addr_t addr, uint64_t size, uint32_t node); +void numa_unset_mem_node_id(ram_addr_t addr, uint64_t size, uint32_t node); #endif @@ -52,6 +52,28 @@ static int max_numa_nodeid; /* Highest specified NUMA node ID, plus one. int nb_numa_nodes; NodeInfo numa_info[MAX_NODES]; +void numa_set_mem_node_id(ram_addr_t addr, uint64_t size, uint32_t node) +{ + struct numa_addr_range *range = g_malloc0(sizeof(*range)); + + range->mem_start = addr; + range->mem_end = addr + size - 1; + QLIST_INSERT_HEAD(&numa_info[node].addr, range, entry); +} + +void numa_unset_mem_node_id(ram_addr_t addr, uint64_t size, uint32_t node) +{ + struct numa_addr_range *range, *next; + + QLIST_FOREACH_SAFE(range, &numa_info[node].addr, entry, next) { + if (addr == range->mem_start && (addr + size - 1) == range->mem_end) { + QLIST_REMOVE(range, entry); + g_free(range); + return; + } + } +} + static void numa_node_parse(NumaNodeOptions *node, QemuOpts *opts, Error **errp) { uint16_t nodenr; @@ -274,6 +296,10 @@ void parse_numa_opts(MachineClass *mc) } for (i = 0; i < nb_numa_nodes; i++) { + QLIST_INIT(&numa_info[i].addr); + } + + for (i = 0; i < nb_numa_nodes; i++) { if (!bitmap_empty(numa_info[i].node_cpu, MAX_CPUMASK_BITS)) { break; } |