diff options
Diffstat (limited to 'hw')
| -rw-r--r-- | hw/fw_cfg.h | 1 | ||||
| -rw-r--r-- | hw/pc.c | 24 |
2 files changed, 25 insertions, 0 deletions
diff --git a/hw/fw_cfg.h b/hw/fw_cfg.h index 41a3dd0628..f616ed2f69 100644 --- a/hw/fw_cfg.h +++ b/hw/fw_cfg.h @@ -14,6 +14,7 @@ #define FW_CFG_INITRD_ADDR 0x0a #define FW_CFG_INITRD_SIZE 0x0b #define FW_CFG_BOOT_DEVICE 0x0c +#define FW_CFG_NUMA 0x0d #define FW_CFG_MAX_ENTRY 0x10 #define FW_CFG_WRITE_CHANNEL 0x4000 @@ -424,11 +424,15 @@ static void bochs_bios_write(void *opaque, uint32_t addr, uint32_t val) } } +extern uint64_t node_cpumask[MAX_NODES]; + static void bochs_bios_init(void) { void *fw_cfg; uint8_t *smbios_table; size_t smbios_len; + uint64_t *numa_fw_cfg; + int i, j; register_ioport_write(0x400, 1, 2, bochs_bios_write, NULL); register_ioport_write(0x401, 1, 2, bochs_bios_write, NULL); @@ -451,6 +455,26 @@ static void bochs_bios_init(void) if (smbios_table) fw_cfg_add_bytes(fw_cfg, FW_CFG_SMBIOS_ENTRIES, smbios_table, smbios_len); + + /* allocate memory for the NUMA channel: one (64bit) word for the number + * of nodes, one word for each VCPU->node and one word for each node to + * hold the amount of memory. + */ + numa_fw_cfg = qemu_mallocz((1 + smp_cpus + nb_numa_nodes) * 8); + numa_fw_cfg[0] = cpu_to_le64(nb_numa_nodes); + for (i = 0; i < smp_cpus; i++) { + for (j = 0; j < nb_numa_nodes; j++) { + if (node_cpumask[j] & (1 << i)) { + numa_fw_cfg[i + 1] = cpu_to_le64(j); + break; + } + } + } + for (i = 0; i < nb_numa_nodes; i++) { + numa_fw_cfg[smp_cpus + 1 + i] = cpu_to_le64(node_mem[i]); + } + fw_cfg_add_bytes(fw_cfg, FW_CFG_NUMA, (uint8_t *)numa_fw_cfg, + (1 + smp_cpus + nb_numa_nodes) * 8); } /* Generate an initial boot sector which sets state and jump to |