motorhead/qemu
1
0
Fork 0
mirror of https://github.com/Motorhead1991/qemu.git synced 2025-08-08 10:13:56 -06:00
Code Issues Projects Releases Packages Wiki Activity Actions

spapr: replace numa_get_node() with lookup in pc-dimm list

Browse source 
SPAPR is the last user of numa_get_node() and a bunch of
supporting code to maintain numa_info[x].addr list.

Get LMB node id from pc-dimm list, which allows to
remove ~80LOC maintaining dynamic address range
lookup list.

It also removes pc-dimm dependency on numa_[un]set_mem_node_id()
and makes pc-dimms a sole source of information about which
node it belongs to and removes duplicate data from global
numa_info.

Signed-off-by: Igor Mammedov <imammedo@redhat.com>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
This commit is contained in:
Igor Mammedov 2017-12-05 16:41:17 +01:00 • committed by David Gibson
parent 7718375584
commit f47bd1c839
4 changed files with 28 additions and 107 deletions
Download patch file Download diff file Expand all files Collapse all files

29
hw/ppc/spapr.c
View file

@ -641,6 +641,26 @@ static void spapr_populate_cpus_dt_node(void *fdt, sPAPRMachineState *spapr)
}
static uint32_t spapr_pc_dimm_node(MemoryDeviceInfoList *list, ram_addr_t addr)
{
MemoryDeviceInfoList *info;
for (info = list; info; info = info->next) {
MemoryDeviceInfo *value = info->value;
if (value && value->type == MEMORY_DEVICE_INFO_KIND_DIMM) {
PCDIMMDeviceInfo *pcdimm_info = value->u.dimm.data;
if (pcdimm_info->addr >= addr &&
addr < (pcdimm_info->addr + pcdimm_info->size)) {
return pcdimm_info->node;
}
}
}
return -1;
}
/*
* Adds ibm,dynamic-reconfiguration-memory node.
* Refer to docs/specs/ppc-spapr-hotplug.txt for the documentation
@ -658,6 +678,7 @@ static int spapr_populate_drconf_memory(sPAPRMachineState *spapr, void *fdt)
lmb_size;
uint32_t *int_buf, *cur_index, buf_len;
int nr_nodes = nb_numa_nodes ? nb_numa_nodes : 1;
MemoryDeviceInfoList *dimms = NULL;
/*
* Don't create the node if there is no hotpluggable memory
@ -692,6 +713,11 @@ static int spapr_populate_drconf_memory(sPAPRMachineState *spapr, void *fdt)
goto out;
}
if (hotplug_lmb_start) {
MemoryDeviceInfoList **prev = &dimms;
qmp_pc_dimm_device_list(qdev_get_machine(), &prev);
}
/* ibm,dynamic-memory */
int_buf[0] = cpu_to_be32(nr_lmbs);
cur_index++;
@ -709,7 +735,7 @@ static int spapr_populate_drconf_memory(sPAPRMachineState *spapr, void *fdt)
dynamic_memory[1] = cpu_to_be32(addr & 0xffffffff);
dynamic_memory[2] = cpu_to_be32(spapr_drc_index(drc));
dynamic_memory[3] = cpu_to_be32(0); /* reserved */
dynamic_memory[4] = cpu_to_be32(numa_get_node(addr, NULL));
dynamic_memory[4] = cpu_to_be32(spapr_pc_dimm_node(dimms, addr));
if (memory_region_present(get_system_memory(), addr)) {
dynamic_memory[5] = cpu_to_be32(SPAPR_LMB_FLAGS_ASSIGNED);
} else {
@ -732,6 +758,7 @@ static int spapr_populate_drconf_memory(sPAPRMachineState *spapr, void *fdt)
cur_index += SPAPR_DR_LMB_LIST_ENTRY_SIZE;
}
qapi_free_MemoryDeviceInfoList(dimms);
ret = fdt_setprop(fdt, offset, "ibm,dynamic-memory", int_buf, buf_len);
if (ret < 0) {
goto out;