diff options
author | Paolo Bonzini <pbonzini@redhat.com> | 2013-02-05 12:03:15 +0100 |
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committer | Paolo Bonzini <pbonzini@redhat.com> | 2013-03-01 15:01:19 +0100 |
commit | 530182169e897c0e401b245552a4c58dc6846912 (patch) | |
tree | 8c39251d7e89855a89d925359f71639400782cd6 /hw/spapr.c | |
parent | e4c8b28cde12d01ada8fe869567dc5717a2dfcb7 (diff) |
hw: move boards and other isolated files to hw/ARCH
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Diffstat (limited to 'hw/spapr.c')
-rw-r--r-- | hw/spapr.c | 963 |
1 files changed, 0 insertions, 963 deletions
diff --git a/hw/spapr.c b/hw/spapr.c deleted file mode 100644 index 2709c660c1..0000000000 --- a/hw/spapr.c +++ /dev/null @@ -1,963 +0,0 @@ -/* - * QEMU PowerPC pSeries Logical Partition (aka sPAPR) hardware System Emulator - * - * Copyright (c) 2004-2007 Fabrice Bellard - * Copyright (c) 2007 Jocelyn Mayer - * Copyright (c) 2010 David Gibson, IBM Corporation. - * - * Permission is hereby granted, free of charge, to any person obtaining a copy - * of this software and associated documentation files (the "Software"), to deal - * in the Software without restriction, including without limitation the rights - * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell - * copies of the Software, and to permit persons to whom the Software is - * furnished to do so, subject to the following conditions: - * - * The above copyright notice and this permission notice shall be included in - * all copies or substantial portions of the Software. - * - * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR - * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, - * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL - * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER - * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, - * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN - * THE SOFTWARE. - * - */ -#include "sysemu/sysemu.h" -#include "hw/hw.h" -#include "elf.h" -#include "net/net.h" -#include "sysemu/blockdev.h" -#include "sysemu/cpus.h" -#include "sysemu/kvm.h" -#include "kvm_ppc.h" - -#include "hw/boards.h" -#include "hw/ppc.h" -#include "hw/loader.h" - -#include "hw/spapr.h" -#include "hw/spapr_vio.h" -#include "hw/spapr_pci.h" -#include "hw/xics.h" -#include "hw/pci/msi.h" - -#include "sysemu/kvm.h" -#include "kvm_ppc.h" -#include "hw/pci/pci.h" - -#include "exec/address-spaces.h" -#include "hw/usb.h" -#include "qemu/config-file.h" - -#include <libfdt.h> - -/* SLOF memory layout: - * - * SLOF raw image loaded at 0, copies its romfs right below the flat - * device-tree, then position SLOF itself 31M below that - * - * So we set FW_OVERHEAD to 40MB which should account for all of that - * and more - * - * We load our kernel at 4M, leaving space for SLOF initial image - */ -#define FDT_MAX_SIZE 0x10000 -#define RTAS_MAX_SIZE 0x10000 -#define FW_MAX_SIZE 0x400000 -#define FW_FILE_NAME "slof.bin" -#define FW_OVERHEAD 0x2800000 -#define KERNEL_LOAD_ADDR FW_MAX_SIZE - -#define MIN_RMA_SLOF 128UL - -#define TIMEBASE_FREQ 512000000ULL - -#define MAX_CPUS 256 -#define XICS_IRQS 1024 - -#define PHANDLE_XICP 0x00001111 - -#define HTAB_SIZE(spapr) (1ULL << ((spapr)->htab_shift)) - -sPAPREnvironment *spapr; - -int spapr_allocate_irq(int hint, bool lsi) -{ - int irq; - - if (hint) { - irq = hint; - /* FIXME: we should probably check for collisions somehow */ - } else { - irq = spapr->next_irq++; - } - - /* Configure irq type */ - if (!xics_get_qirq(spapr->icp, irq)) { - return 0; - } - - xics_set_irq_type(spapr->icp, irq, lsi); - - return irq; -} - -/* Allocate block of consequtive IRQs, returns a number of the first */ -int spapr_allocate_irq_block(int num, bool lsi) -{ - int first = -1; - int i; - - for (i = 0; i < num; ++i) { - int irq; - - irq = spapr_allocate_irq(0, lsi); - if (!irq) { - return -1; - } - - if (0 == i) { - first = irq; - } - - /* If the above doesn't create a consecutive block then that's - * an internal bug */ - assert(irq == (first + i)); - } - - return first; -} - -static int spapr_fixup_cpu_dt(void *fdt, sPAPREnvironment *spapr) -{ - int ret = 0, offset; - CPUPPCState *env; - CPUState *cpu; - char cpu_model[32]; - int smt = kvmppc_smt_threads(); - uint32_t pft_size_prop[] = {0, cpu_to_be32(spapr->htab_shift)}; - - assert(spapr->cpu_model); - - for (env = first_cpu; env != NULL; env = env->next_cpu) { - cpu = CPU(ppc_env_get_cpu(env)); - uint32_t associativity[] = {cpu_to_be32(0x5), - cpu_to_be32(0x0), - cpu_to_be32(0x0), - cpu_to_be32(0x0), - cpu_to_be32(cpu->numa_node), - cpu_to_be32(cpu->cpu_index)}; - - if ((cpu->cpu_index % smt) != 0) { - continue; - } - - snprintf(cpu_model, 32, "/cpus/%s@%x", spapr->cpu_model, - cpu->cpu_index); - - offset = fdt_path_offset(fdt, cpu_model); - if (offset < 0) { - return offset; - } - - if (nb_numa_nodes > 1) { - ret = fdt_setprop(fdt, offset, "ibm,associativity", associativity, - sizeof(associativity)); - if (ret < 0) { - return ret; - } - } - - ret = fdt_setprop(fdt, offset, "ibm,pft-size", - pft_size_prop, sizeof(pft_size_prop)); - if (ret < 0) { - return ret; - } - } - return ret; -} - - -static size_t create_page_sizes_prop(CPUPPCState *env, uint32_t *prop, - size_t maxsize) -{ - size_t maxcells = maxsize / sizeof(uint32_t); - int i, j, count; - uint32_t *p = prop; - - for (i = 0; i < PPC_PAGE_SIZES_MAX_SZ; i++) { - struct ppc_one_seg_page_size *sps = &env->sps.sps[i]; - - if (!sps->page_shift) { - break; - } - for (count = 0; count < PPC_PAGE_SIZES_MAX_SZ; count++) { - if (sps->enc[count].page_shift == 0) { - break; - } - } - if ((p - prop) >= (maxcells - 3 - count * 2)) { - break; - } - *(p++) = cpu_to_be32(sps->page_shift); - *(p++) = cpu_to_be32(sps->slb_enc); - *(p++) = cpu_to_be32(count); - for (j = 0; j < count; j++) { - *(p++) = cpu_to_be32(sps->enc[j].page_shift); - *(p++) = cpu_to_be32(sps->enc[j].pte_enc); - } - } - - return (p - prop) * sizeof(uint32_t); -} - -#define _FDT(exp) \ - do { \ - int ret = (exp); \ - if (ret < 0) { \ - fprintf(stderr, "qemu: error creating device tree: %s: %s\n", \ - #exp, fdt_strerror(ret)); \ - exit(1); \ - } \ - } while (0) - - -static void *spapr_create_fdt_skel(const char *cpu_model, - hwaddr initrd_base, - hwaddr initrd_size, - hwaddr kernel_size, - const char *boot_device, - const char *kernel_cmdline, - uint32_t epow_irq) -{ - void *fdt; - CPUPPCState *env; - uint32_t start_prop = cpu_to_be32(initrd_base); - uint32_t end_prop = cpu_to_be32(initrd_base + initrd_size); - char hypertas_prop[] = "hcall-pft\0hcall-term\0hcall-dabr\0hcall-interrupt" - "\0hcall-tce\0hcall-vio\0hcall-splpar\0hcall-bulk"; - char qemu_hypertas_prop[] = "hcall-memop1"; - uint32_t refpoints[] = {cpu_to_be32(0x4), cpu_to_be32(0x4)}; - uint32_t interrupt_server_ranges_prop[] = {0, cpu_to_be32(smp_cpus)}; - char *modelname; - int i, smt = kvmppc_smt_threads(); - unsigned char vec5[] = {0x0, 0x0, 0x0, 0x0, 0x0, 0x80}; - - fdt = g_malloc0(FDT_MAX_SIZE); - _FDT((fdt_create(fdt, FDT_MAX_SIZE))); - - if (kernel_size) { - _FDT((fdt_add_reservemap_entry(fdt, KERNEL_LOAD_ADDR, kernel_size))); - } - if (initrd_size) { - _FDT((fdt_add_reservemap_entry(fdt, initrd_base, initrd_size))); - } - _FDT((fdt_finish_reservemap(fdt))); - - /* Root node */ - _FDT((fdt_begin_node(fdt, ""))); - _FDT((fdt_property_string(fdt, "device_type", "chrp"))); - _FDT((fdt_property_string(fdt, "model", "IBM pSeries (emulated by qemu)"))); - - _FDT((fdt_property_cell(fdt, "#address-cells", 0x2))); - _FDT((fdt_property_cell(fdt, "#size-cells", 0x2))); - - /* /chosen */ - _FDT((fdt_begin_node(fdt, "chosen"))); - - /* Set Form1_affinity */ - _FDT((fdt_property(fdt, "ibm,architecture-vec-5", vec5, sizeof(vec5)))); - - _FDT((fdt_property_string(fdt, "bootargs", kernel_cmdline))); - _FDT((fdt_property(fdt, "linux,initrd-start", - &start_prop, sizeof(start_prop)))); - _FDT((fdt_property(fdt, "linux,initrd-end", - &end_prop, sizeof(end_prop)))); - if (kernel_size) { - uint64_t kprop[2] = { cpu_to_be64(KERNEL_LOAD_ADDR), - cpu_to_be64(kernel_size) }; - - _FDT((fdt_property(fdt, "qemu,boot-kernel", &kprop, sizeof(kprop)))); - } - if (boot_device) { - _FDT((fdt_property_string(fdt, "qemu,boot-device", boot_device))); - } - _FDT((fdt_property_cell(fdt, "qemu,graphic-width", graphic_width))); - _FDT((fdt_property_cell(fdt, "qemu,graphic-height", graphic_height))); - _FDT((fdt_property_cell(fdt, "qemu,graphic-depth", graphic_depth))); - - _FDT((fdt_end_node(fdt))); - - /* cpus */ - _FDT((fdt_begin_node(fdt, "cpus"))); - - _FDT((fdt_property_cell(fdt, "#address-cells", 0x1))); - _FDT((fdt_property_cell(fdt, "#size-cells", 0x0))); - - modelname = g_strdup(cpu_model); - - for (i = 0; i < strlen(modelname); i++) { - modelname[i] = toupper(modelname[i]); - } - - /* This is needed during FDT finalization */ - spapr->cpu_model = g_strdup(modelname); - - for (env = first_cpu; env != NULL; env = env->next_cpu) { - CPUState *cpu = CPU(ppc_env_get_cpu(env)); - int index = cpu->cpu_index; - uint32_t servers_prop[smp_threads]; - uint32_t gservers_prop[smp_threads * 2]; - char *nodename; - uint32_t segs[] = {cpu_to_be32(28), cpu_to_be32(40), - 0xffffffff, 0xffffffff}; - uint32_t tbfreq = kvm_enabled() ? kvmppc_get_tbfreq() : TIMEBASE_FREQ; - uint32_t cpufreq = kvm_enabled() ? kvmppc_get_clockfreq() : 1000000000; - uint32_t page_sizes_prop[64]; - size_t page_sizes_prop_size; - - if ((index % smt) != 0) { - continue; - } - - nodename = g_strdup_printf("%s@%x", modelname, index); - - _FDT((fdt_begin_node(fdt, nodename))); - - g_free(nodename); - - _FDT((fdt_property_cell(fdt, "reg", index))); - _FDT((fdt_property_string(fdt, "device_type", "cpu"))); - - _FDT((fdt_property_cell(fdt, "cpu-version", env->spr[SPR_PVR]))); - _FDT((fdt_property_cell(fdt, "dcache-block-size", - env->dcache_line_size))); - _FDT((fdt_property_cell(fdt, "icache-block-size", - env->icache_line_size))); - _FDT((fdt_property_cell(fdt, "timebase-frequency", tbfreq))); - _FDT((fdt_property_cell(fdt, "clock-frequency", cpufreq))); - _FDT((fdt_property_cell(fdt, "ibm,slb-size", env->slb_nr))); - _FDT((fdt_property_string(fdt, "status", "okay"))); - _FDT((fdt_property(fdt, "64-bit", NULL, 0))); - - /* Build interrupt servers and gservers properties */ - for (i = 0; i < smp_threads; i++) { - servers_prop[i] = cpu_to_be32(index + i); - /* Hack, direct the group queues back to cpu 0 */ - gservers_prop[i*2] = cpu_to_be32(index + i); - gservers_prop[i*2 + 1] = 0; - } - _FDT((fdt_property(fdt, "ibm,ppc-interrupt-server#s", - servers_prop, sizeof(servers_prop)))); - _FDT((fdt_property(fdt, "ibm,ppc-interrupt-gserver#s", - gservers_prop, sizeof(gservers_prop)))); - - if (env->mmu_model & POWERPC_MMU_1TSEG) { - _FDT((fdt_property(fdt, "ibm,processor-segment-sizes", - segs, sizeof(segs)))); - } - - /* Advertise VMX/VSX (vector extensions) if available - * 0 / no property == no vector extensions - * 1 == VMX / Altivec available - * 2 == VSX available */ - if (env->insns_flags & PPC_ALTIVEC) { - uint32_t vmx = (env->insns_flags2 & PPC2_VSX) ? 2 : 1; - - _FDT((fdt_property_cell(fdt, "ibm,vmx", vmx))); - } - - /* Advertise DFP (Decimal Floating Point) if available - * 0 / no property == no DFP - * 1 == DFP available */ - if (env->insns_flags2 & PPC2_DFP) { - _FDT((fdt_property_cell(fdt, "ibm,dfp", 1))); - } - - page_sizes_prop_size = create_page_sizes_prop(env, page_sizes_prop, - sizeof(page_sizes_prop)); - if (page_sizes_prop_size) { - _FDT((fdt_property(fdt, "ibm,segment-page-sizes", - page_sizes_prop, page_sizes_prop_size))); - } - - _FDT((fdt_end_node(fdt))); - } - - g_free(modelname); - - _FDT((fdt_end_node(fdt))); - - /* RTAS */ - _FDT((fdt_begin_node(fdt, "rtas"))); - - _FDT((fdt_property(fdt, "ibm,hypertas-functions", hypertas_prop, - sizeof(hypertas_prop)))); - _FDT((fdt_property(fdt, "qemu,hypertas-functions", qemu_hypertas_prop, - sizeof(qemu_hypertas_prop)))); - - _FDT((fdt_property(fdt, "ibm,associativity-reference-points", - refpoints, sizeof(refpoints)))); - - _FDT((fdt_property_cell(fdt, "rtas-error-log-max", RTAS_ERROR_LOG_MAX))); - - _FDT((fdt_end_node(fdt))); - - /* interrupt controller */ - _FDT((fdt_begin_node(fdt, "interrupt-controller"))); - - _FDT((fdt_property_string(fdt, "device_type", - "PowerPC-External-Interrupt-Presentation"))); - _FDT((fdt_property_string(fdt, "compatible", "IBM,ppc-xicp"))); - _FDT((fdt_property(fdt, "interrupt-controller", NULL, 0))); - _FDT((fdt_property(fdt, "ibm,interrupt-server-ranges", - interrupt_server_ranges_prop, - sizeof(interrupt_server_ranges_prop)))); - _FDT((fdt_property_cell(fdt, "#interrupt-cells", 2))); - _FDT((fdt_property_cell(fdt, "linux,phandle", PHANDLE_XICP))); - _FDT((fdt_property_cell(fdt, "phandle", PHANDLE_XICP))); - - _FDT((fdt_end_node(fdt))); - - /* vdevice */ - _FDT((fdt_begin_node(fdt, "vdevice"))); - - _FDT((fdt_property_string(fdt, "device_type", "vdevice"))); - _FDT((fdt_property_string(fdt, "compatible", "IBM,vdevice"))); - _FDT((fdt_property_cell(fdt, "#address-cells", 0x1))); - _FDT((fdt_property_cell(fdt, "#size-cells", 0x0))); - _FDT((fdt_property_cell(fdt, "#interrupt-cells", 0x2))); - _FDT((fdt_property(fdt, "interrupt-controller", NULL, 0))); - - _FDT((fdt_end_node(fdt))); - - /* event-sources */ - spapr_events_fdt_skel(fdt, epow_irq); - - _FDT((fdt_end_node(fdt))); /* close root node */ - _FDT((fdt_finish(fdt))); - - return fdt; -} - -static int spapr_populate_memory(sPAPREnvironment *spapr, void *fdt) -{ - uint32_t associativity[] = {cpu_to_be32(0x4), cpu_to_be32(0x0), - cpu_to_be32(0x0), cpu_to_be32(0x0), - cpu_to_be32(0x0)}; - char mem_name[32]; - hwaddr node0_size, mem_start; - uint64_t mem_reg_property[2]; - int i, off; - - /* memory node(s) */ - node0_size = (nb_numa_nodes > 1) ? node_mem[0] : ram_size; - if (spapr->rma_size > node0_size) { - spapr->rma_size = node0_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"); - _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 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); - mem_reg_property[1] = cpu_to_be64(node_mem[i]); - 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_mem[i]; - } - - return 0; -} - -static void spapr_finalize_fdt(sPAPREnvironment *spapr, - hwaddr fdt_addr, - hwaddr rtas_addr, - hwaddr rtas_size) -{ - int ret; - void *fdt; - sPAPRPHBState *phb; - - fdt = g_malloc(FDT_MAX_SIZE); - - /* open out the base tree into a temp buffer for the final tweaks */ - _FDT((fdt_open_into(spapr->fdt_skel, fdt, FDT_MAX_SIZE))); - - ret = spapr_populate_memory(spapr, fdt); - if (ret < 0) { - fprintf(stderr, "couldn't setup memory nodes in fdt\n"); - exit(1); - } - - ret = spapr_populate_vdevice(spapr->vio_bus, fdt); - if (ret < 0) { - fprintf(stderr, "couldn't setup vio devices in fdt\n"); - exit(1); - } - - QLIST_FOREACH(phb, &spapr->phbs, list) { - ret = spapr_populate_pci_dt(phb, PHANDLE_XICP, fdt); - } - - if (ret < 0) { - fprintf(stderr, "couldn't setup PCI devices in fdt\n"); - exit(1); - } - - /* RTAS */ - ret = spapr_rtas_device_tree_setup(fdt, rtas_addr, rtas_size); - if (ret < 0) { - fprintf(stderr, "Couldn't set up RTAS device tree properties\n"); - } - - /* Advertise NUMA via ibm,associativity */ - ret = spapr_fixup_cpu_dt(fdt, spapr); - if (ret < 0) { - fprintf(stderr, "Couldn't finalize CPU device tree properties\n"); - } - - if (!spapr->has_graphics) { - spapr_populate_chosen_stdout(fdt, spapr->vio_bus); - } - - _FDT((fdt_pack(fdt))); - - if (fdt_totalsize(fdt) > FDT_MAX_SIZE) { - hw_error("FDT too big ! 0x%x bytes (max is 0x%x)\n", - fdt_totalsize(fdt), FDT_MAX_SIZE); - exit(1); - } - - cpu_physical_memory_write(fdt_addr, fdt, fdt_totalsize(fdt)); - - g_free(fdt); -} - -static uint64_t translate_kernel_address(void *opaque, uint64_t addr) -{ - return (addr & 0x0fffffff) + KERNEL_LOAD_ADDR; -} - -static void emulate_spapr_hypercall(PowerPCCPU *cpu) -{ - CPUPPCState *env = &cpu->env; - - if (msr_pr) { - hcall_dprintf("Hypercall made with MSR[PR]=1\n"); - env->gpr[3] = H_PRIVILEGE; - } else { - env->gpr[3] = spapr_hypercall(cpu, env->gpr[3], &env->gpr[4]); - } -} - -static void spapr_reset_htab(sPAPREnvironment *spapr) -{ - long shift; - - /* allocate hash page table. For now we always make this 16mb, - * later we should probably make it scale to the size of guest - * RAM */ - - shift = kvmppc_reset_htab(spapr->htab_shift); - - if (shift > 0) { - /* Kernel handles htab, we don't need to allocate one */ - spapr->htab_shift = shift; - } else { - if (!spapr->htab) { - /* Allocate an htab if we don't yet have one */ - spapr->htab = qemu_memalign(HTAB_SIZE(spapr), HTAB_SIZE(spapr)); - } - - /* And clear it */ - memset(spapr->htab, 0, HTAB_SIZE(spapr)); - } - - /* Update the RMA size if necessary */ - if (spapr->vrma_adjust) { - spapr->rma_size = kvmppc_rma_size(ram_size, spapr->htab_shift); - } -} - -static void ppc_spapr_reset(void) -{ - /* Reset the hash table & recalc the RMA */ - spapr_reset_htab(spapr); - - qemu_devices_reset(); - - /* Load the fdt */ - spapr_finalize_fdt(spapr, spapr->fdt_addr, spapr->rtas_addr, - spapr->rtas_size); - - /* Set up the entry state */ - first_cpu->gpr[3] = spapr->fdt_addr; - first_cpu->gpr[5] = 0; - first_cpu->halted = 0; - first_cpu->nip = spapr->entry_point; - -} - -static void spapr_cpu_reset(void *opaque) -{ - PowerPCCPU *cpu = opaque; - CPUPPCState *env = &cpu->env; - - cpu_reset(CPU(cpu)); - - /* All CPUs start halted. CPU0 is unhalted from the machine level - * reset code and the rest are explicitly started up by the guest - * using an RTAS call */ - env->halted = 1; - - env->spr[SPR_HIOR] = 0; - - env->external_htab = spapr->htab; - env->htab_base = -1; - env->htab_mask = HTAB_SIZE(spapr) - 1; - env->spr[SPR_SDR1] = (unsigned long)spapr->htab | - (spapr->htab_shift - 18); -} - -static void spapr_create_nvram(sPAPREnvironment *spapr) -{ - QemuOpts *machine_opts; - DeviceState *dev; - - dev = qdev_create(&spapr->vio_bus->bus, "spapr-nvram"); - - machine_opts = qemu_opts_find(qemu_find_opts("machine"), 0); - if (machine_opts) { - const char *drivename; - - drivename = qemu_opt_get(machine_opts, "nvram"); - if (drivename) { - BlockDriverState *bs; - - bs = bdrv_find(drivename); - if (!bs) { - fprintf(stderr, "No such block device \"%s\" for nvram\n", - drivename); - exit(1); - } - qdev_prop_set_drive_nofail(dev, "drive", bs); - } - } - - qdev_init_nofail(dev); - - spapr->nvram = (struct sPAPRNVRAM *)dev; -} - -/* Returns whether we want to use VGA or not */ -static int spapr_vga_init(PCIBus *pci_bus) -{ - switch (vga_interface_type) { - case VGA_NONE: - case VGA_STD: - return pci_vga_init(pci_bus) != NULL; - default: - fprintf(stderr, "This vga model is not supported," - "currently it only supports -vga std\n"); - exit(0); - break; - } -} - -/* pSeries LPAR / sPAPR hardware init */ -static void ppc_spapr_init(QEMUMachineInitArgs *args) -{ - ram_addr_t ram_size = args->ram_size; - const char *cpu_model = args->cpu_model; - const char *kernel_filename = args->kernel_filename; - const char *kernel_cmdline = args->kernel_cmdline; - const char *initrd_filename = args->initrd_filename; - const char *boot_device = args->boot_device; - PowerPCCPU *cpu; - CPUPPCState *env; - PCIHostState *phb; - int i; - MemoryRegion *sysmem = get_system_memory(); - MemoryRegion *ram = g_new(MemoryRegion, 1); - hwaddr rma_alloc_size; - uint32_t initrd_base = 0; - long kernel_size = 0, initrd_size = 0; - long load_limit, rtas_limit, fw_size; - char *filename; - - msi_supported = true; - - spapr = g_malloc0(sizeof(*spapr)); - QLIST_INIT(&spapr->phbs); - - cpu_ppc_hypercall = emulate_spapr_hypercall; - - /* Allocate RMA if necessary */ - rma_alloc_size = kvmppc_alloc_rma("ppc_spapr.rma", sysmem); - - if (rma_alloc_size == -1) { - hw_error("qemu: Unable to create RMA\n"); - exit(1); - } - - if (rma_alloc_size && (rma_alloc_size < ram_size)) { - spapr->rma_size = rma_alloc_size; - } else { - spapr->rma_size = ram_size; - - /* With KVM, we don't actually know whether KVM supports an - * unbounded RMA (PR KVM) or is limited by the hash table size - * (HV KVM using VRMA), so we always assume the latter - * - * In that case, we also limit the initial allocations for RTAS - * etc... to 256M since we have no way to know what the VRMA size - * is going to be as it depends on the size of the hash table - * isn't determined yet. - */ - if (kvm_enabled()) { - spapr->vrma_adjust = 1; - spapr->rma_size = MIN(spapr->rma_size, 0x10000000); - } - } - - /* 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; - - /* 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 - * more than needed for the Linux guests we support. */ - spapr->htab_shift = 18; /* Minimum architected size */ - while (spapr->htab_shift <= 46) { - if ((1ULL << (spapr->htab_shift + 7)) >= ram_size) { - break; - } - spapr->htab_shift++; - } - - /* init CPUs */ - if (cpu_model == NULL) { - cpu_model = kvm_enabled() ? "host" : "POWER7"; - } - for (i = 0; i < smp_cpus; i++) { - cpu = cpu_ppc_init(cpu_model); - if (cpu == NULL) { - fprintf(stderr, "Unable to find PowerPC CPU definition\n"); - exit(1); - } - env = &cpu->env; - - /* Set time-base frequency to 512 MHz */ - cpu_ppc_tb_init(env, TIMEBASE_FREQ); - - /* PAPR always has exception vectors in RAM not ROM */ - env->hreset_excp_prefix = 0; - - /* Tell KVM that we're in PAPR mode */ - if (kvm_enabled()) { - kvmppc_set_papr(cpu); - } - - qemu_register_reset(spapr_cpu_reset, cpu); - } - - /* allocate RAM */ - spapr->ram_limit = ram_size; - if (spapr->ram_limit > rma_alloc_size) { - ram_addr_t nonrma_base = rma_alloc_size; - ram_addr_t nonrma_size = spapr->ram_limit - rma_alloc_size; - - memory_region_init_ram(ram, "ppc_spapr.ram", nonrma_size); - vmstate_register_ram_global(ram); - memory_region_add_subregion(sysmem, nonrma_base, ram); - } - - 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) { - 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", - spapr->rtas_size, RTAS_MAX_SIZE); - exit(1); - } - g_free(filename); - - - /* Set up Interrupt Controller */ - spapr->icp = xics_system_init(XICS_IRQS); - spapr->next_irq = XICS_IRQ_BASE; - - /* Set up EPOW events infrastructure */ - spapr_events_init(spapr); - - /* Set up IOMMU */ - spapr_iommu_init(); - - /* Set up VIO bus */ - spapr->vio_bus = spapr_vio_bus_init(); - - for (i = 0; i < MAX_SERIAL_PORTS; i++) { - if (serial_hds[i]) { - spapr_vty_create(spapr->vio_bus, serial_hds[i]); - } - } - - /* We always have at least the nvram device on VIO */ - spapr_create_nvram(spapr); - - /* Set up PCI */ - spapr_pci_rtas_init(); - - phb = spapr_create_phb(spapr, 0, "pci"); - - for (i = 0; i < nb_nics; i++) { - NICInfo *nd = &nd_table[i]; - - if (!nd->model) { - nd->model = g_strdup("ibmveth"); - } - - if (strcmp(nd->model, "ibmveth") == 0) { - spapr_vlan_create(spapr->vio_bus, nd); - } else { - pci_nic_init_nofail(&nd_table[i], nd->model, NULL); - } - } - - for (i = 0; i <= drive_get_max_bus(IF_SCSI); i++) { - spapr_vscsi_create(spapr->vio_bus); - } - - /* Graphics */ - if (spapr_vga_init(phb->bus)) { - spapr->has_graphics = true; - } - - if (usb_enabled(spapr->has_graphics)) { - pci_create_simple(phb->bus, -1, "pci-ohci"); - if (spapr->has_graphics) { - usbdevice_create("keyboard"); - usbdevice_create("mouse"); - } - } - - if (spapr->rma_size < (MIN_RMA_SLOF << 20)) { - fprintf(stderr, "qemu: pSeries SLOF firmware requires >= " - "%ldM guest RMA (Real Mode Area memory)\n", MIN_RMA_SLOF); - exit(1); - } - - if (kernel_filename) { - uint64_t lowaddr = 0; - - kernel_size = load_elf(kernel_filename, translate_kernel_address, NULL, - NULL, &lowaddr, NULL, 1, ELF_MACHINE, 0); - if (kernel_size < 0) { - kernel_size = load_image_targphys(kernel_filename, - KERNEL_LOAD_ADDR, - load_limit - KERNEL_LOAD_ADDR); - } - if (kernel_size < 0) { - fprintf(stderr, "qemu: could not load kernel '%s'\n", - kernel_filename); - exit(1); - } - - /* load initrd */ - if (initrd_filename) { - /* Try to locate the initrd in the gap between the kernel - * and the firmware. Add a bit of space just in case - */ - initrd_base = (KERNEL_LOAD_ADDR + kernel_size + 0x1ffff) & ~0xffff; - initrd_size = load_image_targphys(initrd_filename, initrd_base, - load_limit - initrd_base); - if (initrd_size < 0) { - fprintf(stderr, "qemu: could not load initial ram disk '%s'\n", - initrd_filename); - exit(1); - } - } else { - initrd_base = 0; - initrd_size = 0; - } - } - - filename = qemu_find_file(QEMU_FILE_TYPE_BIOS, FW_FILE_NAME); - fw_size = load_image_targphys(filename, 0, FW_MAX_SIZE); - if (fw_size < 0) { - hw_error("qemu: could not load LPAR rtas '%s'\n", filename); - exit(1); - } - g_free(filename); - - spapr->entry_point = 0x100; - - /* Prepare the device tree */ - spapr->fdt_skel = spapr_create_fdt_skel(cpu_model, - initrd_base, initrd_size, - kernel_size, - boot_device, kernel_cmdline, - spapr->epow_irq); - assert(spapr->fdt_skel != NULL); -} - -static QEMUMachine spapr_machine = { - .name = "pseries", - .desc = "pSeries Logical Partition (PAPR compliant)", - .init = ppc_spapr_init, - .reset = ppc_spapr_reset, - .block_default_type = IF_SCSI, - .max_cpus = MAX_CPUS, - .no_parallel = 1, - .boot_order = NULL, -}; - -static void spapr_machine_init(void) -{ - qemu_register_machine(&spapr_machine); -} - -machine_init(spapr_machine_init); |