diff options
Diffstat (limited to 'hw/ppc/spapr.c')
| -rw-r--r-- | hw/ppc/spapr.c | 188 |
1 files changed, 123 insertions, 65 deletions
diff --git a/hw/ppc/spapr.c b/hw/ppc/spapr.c index 5cb452f234..2ab4460f04 100644 --- a/hw/ppc/spapr.c +++ b/hw/ppc/spapr.c @@ -71,6 +71,7 @@ */ #define FDT_MAX_SIZE 0x40000 #define RTAS_MAX_SIZE 0x10000 +#define RTAS_MAX_ADDR 0x80000000 /* RTAS must stay below that */ #define FW_MAX_SIZE 0x400000 #define FW_FILE_NAME "slof.bin" #define FW_OVERHEAD 0x2800000 @@ -80,7 +81,7 @@ #define TIMEBASE_FREQ 512000000ULL -#define MAX_CPUS 256 +#define MAX_CPUS 255 #define PHANDLE_XICP 0x00001111 @@ -283,6 +284,19 @@ static size_t create_page_sizes_prop(CPUPPCState *env, uint32_t *prop, return (p - prop) * sizeof(uint32_t); } +static hwaddr spapr_node0_size(void) +{ + if (nb_numa_nodes) { + int i; + for (i = 0; i < nb_numa_nodes; ++i) { + if (numa_info[i].node_mem) { + return MIN(pow2floor(numa_info[i].node_mem), ram_size); + } + } + } + return ram_size; +} + #define _FDT(exp) \ do { \ int ret = (exp); \ @@ -319,6 +333,7 @@ static void *spapr_create_fdt_skel(hwaddr initrd_base, QemuOpts *opts = qemu_opts_find(qemu_find_opts("smp-opts"), NULL); unsigned sockets = opts ? qemu_opt_get_number(opts, "sockets", 0) : 0; uint32_t cpus_per_socket = sockets ? (smp_cpus / sockets) : 1; + char *buf; add_str(hypertas, "hcall-pft"); add_str(hypertas, "hcall-term"); @@ -348,6 +363,29 @@ static void *spapr_create_fdt_skel(hwaddr initrd_base, _FDT((fdt_property_string(fdt, "model", "IBM pSeries (emulated by qemu)"))); _FDT((fdt_property_string(fdt, "compatible", "qemu,pseries"))); + /* + * Add info to guest to indentify which host is it being run on + * and what is the uuid of the guest + */ + if (kvmppc_get_host_model(&buf)) { + _FDT((fdt_property_string(fdt, "host-model", buf))); + g_free(buf); + } + if (kvmppc_get_host_serial(&buf)) { + _FDT((fdt_property_string(fdt, "host-serial", buf))); + g_free(buf); + } + + buf = g_strdup_printf(UUID_FMT, qemu_uuid[0], qemu_uuid[1], + qemu_uuid[2], qemu_uuid[3], qemu_uuid[4], + qemu_uuid[5], qemu_uuid[6], qemu_uuid[7], + qemu_uuid[8], qemu_uuid[9], qemu_uuid[10], + qemu_uuid[11], qemu_uuid[12], qemu_uuid[13], + qemu_uuid[14], qemu_uuid[15]); + + _FDT((fdt_property_string(fdt, "vm,uuid", buf))); + g_free(buf); + _FDT((fdt_property_cell(fdt, "#address-cells", 0x2))); _FDT((fdt_property_cell(fdt, "#size-cells", 0x2))); @@ -502,6 +540,15 @@ static void *spapr_create_fdt_skel(hwaddr initrd_base, _FDT((fdt_property_cell(fdt, "rtas-error-log-max", RTAS_ERROR_LOG_MAX))); + /* + * According to PAPR, rtas ibm,os-term, does not gaurantee a return + * back to the guest cpu. + * + * While an additional ibm,extended-os-term property indicates that + * rtas call return will always occur. Set this property. + */ + _FDT((fdt_property(fdt, "ibm,extended-os-term", NULL, 0))); + _FDT((fdt_end_node(fdt))); /* interrupt controller */ @@ -597,72 +644,75 @@ int spapr_h_cas_compose_response(target_ulong addr, target_ulong size) return 0; } -static int spapr_populate_memory(sPAPREnvironment *spapr, void *fdt) +static void spapr_populate_memory_node(void *fdt, int nodeid, hwaddr start, + hwaddr size) { - uint32_t associativity[] = {cpu_to_be32(0x4), cpu_to_be32(0x0), - cpu_to_be32(0x0), cpu_to_be32(0x0), - cpu_to_be32(0x0)}; + uint32_t associativity[] = { + cpu_to_be32(0x4), /* length */ + cpu_to_be32(0x0), cpu_to_be32(0x0), + cpu_to_be32(0x0), cpu_to_be32(nodeid) + }; char mem_name[32]; - hwaddr node0_size, mem_start, node_size; uint64_t mem_reg_property[2]; - int i, off; + int off; - /* memory node(s) */ - if (nb_numa_nodes > 1 && numa_info[0].node_mem < ram_size) { - node0_size = numa_info[0].node_mem; - } else { - node0_size = ram_size; - } + mem_reg_property[0] = cpu_to_be64(start); + mem_reg_property[1] = cpu_to_be64(size); - /* RMA */ - mem_reg_property[0] = 0; - mem_reg_property[1] = cpu_to_be64(spapr->rma_size); - off = fdt_add_subnode(fdt, 0, "memory@0"); + sprintf(mem_name, "memory@" TARGET_FMT_lx, start); + off = fdt_add_subnode(fdt, 0, mem_name); _FDT(off); _FDT((fdt_setprop_string(fdt, off, "device_type", "memory"))); _FDT((fdt_setprop(fdt, off, "reg", mem_reg_property, sizeof(mem_reg_property)))); _FDT((fdt_setprop(fdt, off, "ibm,associativity", associativity, sizeof(associativity)))); +} + +static int spapr_populate_memory(sPAPREnvironment *spapr, void *fdt) +{ + hwaddr mem_start, node_size; + int i, nb_nodes = nb_numa_nodes; + NodeInfo *nodes = numa_info; + NodeInfo ramnode; + + /* No NUMA nodes, assume there is just one node with whole RAM */ + if (!nb_numa_nodes) { + nb_nodes = 1; + ramnode.node_mem = ram_size; + nodes = &ramnode; + } - /* RAM: Node 0 */ - if (node0_size > spapr->rma_size) { - mem_reg_property[0] = cpu_to_be64(spapr->rma_size); - mem_reg_property[1] = cpu_to_be64(node0_size - spapr->rma_size); - - sprintf(mem_name, "memory@" TARGET_FMT_lx, spapr->rma_size); - off = fdt_add_subnode(fdt, 0, mem_name); - _FDT(off); - _FDT((fdt_setprop_string(fdt, off, "device_type", "memory"))); - _FDT((fdt_setprop(fdt, off, "reg", mem_reg_property, - sizeof(mem_reg_property)))); - _FDT((fdt_setprop(fdt, off, "ibm,associativity", associativity, - sizeof(associativity)))); - } - - /* RAM: Node 1 and beyond */ - mem_start = node0_size; - for (i = 1; i < nb_numa_nodes; i++) { - mem_reg_property[0] = cpu_to_be64(mem_start); + for (i = 0, mem_start = 0; i < nb_nodes; ++i) { + if (!nodes[i].node_mem) { + continue; + } if (mem_start >= ram_size) { node_size = 0; } else { - node_size = numa_info[i].node_mem; + node_size = nodes[i].node_mem; if (node_size > ram_size - mem_start) { node_size = ram_size - mem_start; } } - mem_reg_property[1] = cpu_to_be64(node_size); - associativity[3] = associativity[4] = cpu_to_be32(i); - sprintf(mem_name, "memory@" TARGET_FMT_lx, mem_start); - off = fdt_add_subnode(fdt, 0, mem_name); - _FDT(off); - _FDT((fdt_setprop_string(fdt, off, "device_type", "memory"))); - _FDT((fdt_setprop(fdt, off, "reg", mem_reg_property, - sizeof(mem_reg_property)))); - _FDT((fdt_setprop(fdt, off, "ibm,associativity", associativity, - sizeof(associativity)))); - mem_start += node_size; + if (!mem_start) { + /* ppc_spapr_init() checks for rma_size <= node0_size already */ + spapr_populate_memory_node(fdt, i, 0, spapr->rma_size); + mem_start += spapr->rma_size; + node_size -= spapr->rma_size; + } + for ( ; node_size; ) { + hwaddr sizetmp = pow2floor(node_size); + + /* mem_start != 0 here */ + if (ctzl(mem_start) < ctzl(sizetmp)) { + sizetmp = 1ULL << ctzl(mem_start); + } + + spapr_populate_memory_node(fdt, i, mem_start, sizetmp); + node_size -= sizetmp; + mem_start += sizetmp; + } } return 0; @@ -746,6 +796,7 @@ static void spapr_finalize_fdt(sPAPREnvironment *spapr, cpu_physical_memory_write(fdt_addr, fdt, fdt_totalsize(fdt)); + g_free(bootlist); g_free(fdt); } @@ -792,25 +843,38 @@ static void spapr_reset_htab(sPAPREnvironment *spapr) /* Update the RMA size if necessary */ if (spapr->vrma_adjust) { - hwaddr node0_size = (nb_numa_nodes > 1) ? - numa_info[0].node_mem : ram_size; - spapr->rma_size = kvmppc_rma_size(node0_size, spapr->htab_shift); + spapr->rma_size = kvmppc_rma_size(spapr_node0_size(), + spapr->htab_shift); } } static void ppc_spapr_reset(void) { PowerPCCPU *first_ppc_cpu; + uint32_t rtas_limit; /* Reset the hash table & recalc the RMA */ spapr_reset_htab(spapr); qemu_devices_reset(); + /* + * We place the device tree and RTAS just below either the top of the RMA, + * or just below 2GB, whichever is lowere, so that it can be + * processed with 32-bit real mode code if necessary + */ + rtas_limit = MIN(spapr->rma_size, RTAS_MAX_ADDR); + spapr->rtas_addr = rtas_limit - RTAS_MAX_SIZE; + spapr->fdt_addr = spapr->rtas_addr - FDT_MAX_SIZE; + /* Load the fdt */ spapr_finalize_fdt(spapr, spapr->fdt_addr, spapr->rtas_addr, spapr->rtas_size); + /* Copy RTAS over */ + cpu_physical_memory_write(spapr->rtas_addr, spapr->rtas_blob, + spapr->rtas_size); + /* Set up the entry state */ first_ppc_cpu = POWERPC_CPU(first_cpu); first_ppc_cpu->env.gpr[3] = spapr->fdt_addr; @@ -1227,10 +1291,10 @@ static void ppc_spapr_init(MachineState *machine) MemoryRegion *rma_region; void *rma = NULL; hwaddr rma_alloc_size; - hwaddr node0_size = (nb_numa_nodes > 1) ? numa_info[0].node_mem : ram_size; + hwaddr node0_size = spapr_node0_size(); uint32_t initrd_base = 0; long kernel_size = 0, initrd_size = 0; - long load_limit, rtas_limit, fw_size; + long load_limit, fw_size; bool kernel_le = false; char *filename; @@ -1275,13 +1339,8 @@ static void ppc_spapr_init(MachineState *machine) exit(1); } - /* We place the device tree and RTAS just below either the top of the RMA, - * or just below 2GB, whichever is lowere, so that it can be - * processed with 32-bit real mode code if necessary */ - rtas_limit = MIN(spapr->rma_size, 0x80000000); - spapr->rtas_addr = rtas_limit - RTAS_MAX_SIZE; - spapr->fdt_addr = spapr->rtas_addr - FDT_MAX_SIZE; - load_limit = spapr->fdt_addr - FW_OVERHEAD; + /* Setup a load limit for the ramdisk leaving room for SLOF and FDT */ + load_limit = MIN(spapr->rma_size, RTAS_MAX_ADDR) - FW_OVERHEAD; /* We aim for a hash table of size 1/128 the size of RAM. The * normal rule of thumb is 1/64 the size of RAM, but that's much @@ -1349,14 +1408,14 @@ static void ppc_spapr_init(MachineState *machine) } filename = qemu_find_file(QEMU_FILE_TYPE_BIOS, "spapr-rtas.bin"); - spapr->rtas_size = load_image_targphys(filename, spapr->rtas_addr, - rtas_limit - spapr->rtas_addr); - if (spapr->rtas_size < 0) { + spapr->rtas_size = get_image_size(filename); + spapr->rtas_blob = g_malloc(spapr->rtas_size); + if (load_image_size(filename, spapr->rtas_blob, spapr->rtas_size) < 0) { hw_error("qemu: could not load LPAR rtas '%s'\n", filename); exit(1); } if (spapr->rtas_size > RTAS_MAX_SIZE) { - hw_error("RTAS too big ! 0x%lx bytes (max is 0x%x)\n", + hw_error("RTAS too big ! 0x%zx bytes (max is 0x%x)\n", spapr->rtas_size, RTAS_MAX_SIZE); exit(1); } @@ -1378,7 +1437,6 @@ static void ppc_spapr_init(MachineState *machine) spapr_create_nvram(spapr); /* Set up PCI */ - spapr_pci_msi_init(spapr, SPAPR_PCI_MSI_WINDOW); spapr_pci_rtas_init(); phb = spapr_create_phb(spapr, 0); |