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Diffstat (limited to 'qemu/hw/ppc/spapr.c')
| -rw-r--r-- | qemu/hw/ppc/spapr.c | 2485 |
1 files changed, 0 insertions, 2485 deletions
diff --git a/qemu/hw/ppc/spapr.c b/qemu/hw/ppc/spapr.c deleted file mode 100644 index b69995e0d..000000000 --- a/qemu/hw/ppc/spapr.c +++ /dev/null @@ -1,2485 +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 "qemu/osdep.h" -#include "qapi/error.h" -#include "sysemu/sysemu.h" -#include "sysemu/numa.h" -#include "hw/hw.h" -#include "hw/fw-path-provider.h" -#include "elf.h" -#include "net/net.h" -#include "sysemu/device_tree.h" -#include "sysemu/block-backend.h" -#include "sysemu/cpus.h" -#include "sysemu/kvm.h" -#include "sysemu/device_tree.h" -#include "kvm_ppc.h" -#include "migration/migration.h" -#include "mmu-hash64.h" -#include "qom/cpu.h" - -#include "hw/boards.h" -#include "hw/ppc/ppc.h" -#include "hw/loader.h" - -#include "hw/ppc/spapr.h" -#include "hw/ppc/spapr_vio.h" -#include "hw/pci-host/spapr.h" -#include "hw/ppc/xics.h" -#include "hw/pci/msi.h" - -#include "hw/pci/pci.h" -#include "hw/scsi/scsi.h" -#include "hw/virtio/virtio-scsi.h" - -#include "exec/address-spaces.h" -#include "hw/usb.h" -#include "qemu/config-file.h" -#include "qemu/error-report.h" -#include "trace.h" -#include "hw/nmi.h" - -#include "hw/compat.h" -#include "qemu/cutils.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 0x100000 -#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 -#define KERNEL_LOAD_ADDR FW_MAX_SIZE - -#define MIN_RMA_SLOF 128UL - -#define TIMEBASE_FREQ 512000000ULL - -#define PHANDLE_XICP 0x00001111 - -#define HTAB_SIZE(spapr) (1ULL << ((spapr)->htab_shift)) - -static XICSState *try_create_xics(const char *type, int nr_servers, - int nr_irqs, Error **errp) -{ - Error *err = NULL; - DeviceState *dev; - - dev = qdev_create(NULL, type); - qdev_prop_set_uint32(dev, "nr_servers", nr_servers); - qdev_prop_set_uint32(dev, "nr_irqs", nr_irqs); - object_property_set_bool(OBJECT(dev), true, "realized", &err); - if (err) { - error_propagate(errp, err); - object_unparent(OBJECT(dev)); - return NULL; - } - return XICS_COMMON(dev); -} - -static XICSState *xics_system_init(MachineState *machine, - int nr_servers, int nr_irqs, Error **errp) -{ - XICSState *icp = NULL; - - if (kvm_enabled()) { - Error *err = NULL; - - if (machine_kernel_irqchip_allowed(machine)) { - icp = try_create_xics(TYPE_KVM_XICS, nr_servers, nr_irqs, &err); - } - if (machine_kernel_irqchip_required(machine) && !icp) { - error_reportf_err(err, - "kernel_irqchip requested but unavailable: "); - } else { - error_free(err); - } - } - - if (!icp) { - icp = try_create_xics(TYPE_XICS, nr_servers, nr_irqs, errp); - } - - return icp; -} - -static int spapr_fixup_cpu_smt_dt(void *fdt, int offset, PowerPCCPU *cpu, - int smt_threads) -{ - int i, ret = 0; - uint32_t servers_prop[smt_threads]; - uint32_t gservers_prop[smt_threads * 2]; - int index = ppc_get_vcpu_dt_id(cpu); - - if (cpu->cpu_version) { - ret = fdt_setprop_cell(fdt, offset, "cpu-version", cpu->cpu_version); - if (ret < 0) { - return ret; - } - } - - /* Build interrupt servers and gservers properties */ - for (i = 0; i < smt_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; - } - ret = fdt_setprop(fdt, offset, "ibm,ppc-interrupt-server#s", - servers_prop, sizeof(servers_prop)); - if (ret < 0) { - return ret; - } - ret = fdt_setprop(fdt, offset, "ibm,ppc-interrupt-gserver#s", - gservers_prop, sizeof(gservers_prop)); - - return ret; -} - -static int spapr_fixup_cpu_numa_dt(void *fdt, int offset, CPUState *cs) -{ - int ret = 0; - PowerPCCPU *cpu = POWERPC_CPU(cs); - int index = ppc_get_vcpu_dt_id(cpu); - uint32_t associativity[] = {cpu_to_be32(0x5), - cpu_to_be32(0x0), - cpu_to_be32(0x0), - cpu_to_be32(0x0), - cpu_to_be32(cs->numa_node), - cpu_to_be32(index)}; - - /* Advertise NUMA via ibm,associativity */ - if (nb_numa_nodes > 1) { - ret = fdt_setprop(fdt, offset, "ibm,associativity", associativity, - sizeof(associativity)); - } - - return ret; -} - -static int spapr_fixup_cpu_dt(void *fdt, sPAPRMachineState *spapr) -{ - int ret = 0, offset, cpus_offset; - CPUState *cs; - char cpu_model[32]; - int smt = kvmppc_smt_threads(); - uint32_t pft_size_prop[] = {0, cpu_to_be32(spapr->htab_shift)}; - - CPU_FOREACH(cs) { - PowerPCCPU *cpu = POWERPC_CPU(cs); - DeviceClass *dc = DEVICE_GET_CLASS(cs); - int index = ppc_get_vcpu_dt_id(cpu); - - if ((index % smt) != 0) { - continue; - } - - snprintf(cpu_model, 32, "%s@%x", dc->fw_name, index); - - cpus_offset = fdt_path_offset(fdt, "/cpus"); - if (cpus_offset < 0) { - cpus_offset = fdt_add_subnode(fdt, fdt_path_offset(fdt, "/"), - "cpus"); - if (cpus_offset < 0) { - return cpus_offset; - } - } - offset = fdt_subnode_offset(fdt, cpus_offset, cpu_model); - if (offset < 0) { - offset = fdt_add_subnode(fdt, cpus_offset, cpu_model); - if (offset < 0) { - return offset; - } - } - - ret = fdt_setprop(fdt, offset, "ibm,pft-size", - pft_size_prop, sizeof(pft_size_prop)); - if (ret < 0) { - return ret; - } - - ret = spapr_fixup_cpu_numa_dt(fdt, offset, cs); - if (ret < 0) { - return ret; - } - - ret = spapr_fixup_cpu_smt_dt(fdt, offset, cpu, - ppc_get_compat_smt_threads(cpu)); - 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); -} - -static hwaddr spapr_node0_size(void) -{ - MachineState *machine = MACHINE(qdev_get_machine()); - - 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), - machine->ram_size); - } - } - } - return machine->ram_size; -} - -#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 add_str(GString *s, const gchar *s1) -{ - g_string_append_len(s, s1, strlen(s1) + 1); -} - -static void *spapr_create_fdt_skel(hwaddr initrd_base, - hwaddr initrd_size, - hwaddr kernel_size, - bool little_endian, - const char *kernel_cmdline, - uint32_t epow_irq) -{ - void *fdt; - uint32_t start_prop = cpu_to_be32(initrd_base); - uint32_t end_prop = cpu_to_be32(initrd_base + initrd_size); - GString *hypertas = g_string_sized_new(256); - GString *qemu_hypertas = g_string_sized_new(256); - uint32_t refpoints[] = {cpu_to_be32(0x4), cpu_to_be32(0x4)}; - uint32_t interrupt_server_ranges_prop[] = {0, cpu_to_be32(max_cpus)}; - unsigned char vec5[] = {0x0, 0x0, 0x0, 0x0, 0x0, 0x80}; - char *buf; - - add_str(hypertas, "hcall-pft"); - add_str(hypertas, "hcall-term"); - add_str(hypertas, "hcall-dabr"); - add_str(hypertas, "hcall-interrupt"); - add_str(hypertas, "hcall-tce"); - add_str(hypertas, "hcall-vio"); - add_str(hypertas, "hcall-splpar"); - add_str(hypertas, "hcall-bulk"); - add_str(hypertas, "hcall-set-mode"); - add_str(qemu_hypertas, "hcall-memop1"); - - 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_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))); - if (qemu_uuid_set) { - _FDT((fdt_property_string(fdt, "system-id", buf))); - } - g_free(buf); - - if (qemu_get_vm_name()) { - _FDT((fdt_property_string(fdt, "ibm,partition-name", - qemu_get_vm_name()))); - } - - _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 (little_endian) { - _FDT((fdt_property(fdt, "qemu,boot-kernel-le", NULL, 0))); - } - } - if (boot_menu) { - _FDT((fdt_property_cell(fdt, "qemu,boot-menu", boot_menu))); - } - _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))); - - /* RTAS */ - _FDT((fdt_begin_node(fdt, "rtas"))); - - if (!kvm_enabled() || kvmppc_spapr_use_multitce()) { - add_str(hypertas, "hcall-multi-tce"); - } - _FDT((fdt_property(fdt, "ibm,hypertas-functions", hypertas->str, - hypertas->len))); - g_string_free(hypertas, TRUE); - _FDT((fdt_property(fdt, "qemu,hypertas-functions", qemu_hypertas->str, - qemu_hypertas->len))); - g_string_free(qemu_hypertas, TRUE); - - _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_property_cell(fdt, "rtas-event-scan-rate", - RTAS_EVENT_SCAN_RATE))); - - if (msi_nonbroken) { - _FDT((fdt_property(fdt, "ibm,change-msix-capable", NULL, 0))); - } - - /* - * According to PAPR, rtas ibm,os-term does not guarantee 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 */ - _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); - - /* /hypervisor node */ - if (kvm_enabled()) { - uint8_t hypercall[16]; - - /* indicate KVM hypercall interface */ - _FDT((fdt_begin_node(fdt, "hypervisor"))); - _FDT((fdt_property_string(fdt, "compatible", "linux,kvm"))); - if (kvmppc_has_cap_fixup_hcalls()) { - /* - * Older KVM versions with older guest kernels were broken with the - * magic page, don't allow the guest to map it. - */ - if (!kvmppc_get_hypercall(first_cpu->env_ptr, hypercall, - sizeof(hypercall))) { - _FDT((fdt_property(fdt, "hcall-instructions", hypercall, - sizeof(hypercall)))); - } - } - _FDT((fdt_end_node(fdt))); - } - - _FDT((fdt_end_node(fdt))); /* close root node */ - _FDT((fdt_finish(fdt))); - - return fdt; -} - -static int spapr_populate_memory_node(void *fdt, int nodeid, hwaddr start, - hwaddr size) -{ - 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]; - uint64_t mem_reg_property[2]; - int off; - - mem_reg_property[0] = cpu_to_be64(start); - mem_reg_property[1] = cpu_to_be64(size); - - 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)))); - return off; -} - -static int spapr_populate_memory(sPAPRMachineState *spapr, void *fdt) -{ - MachineState *machine = MACHINE(spapr); - 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 = machine->ram_size; - nodes = &ramnode; - } - - for (i = 0, mem_start = 0; i < nb_nodes; ++i) { - if (!nodes[i].node_mem) { - continue; - } - if (mem_start >= machine->ram_size) { - node_size = 0; - } else { - node_size = nodes[i].node_mem; - if (node_size > machine->ram_size - mem_start) { - node_size = machine->ram_size - mem_start; - } - } - 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; -} - -static void spapr_populate_cpu_dt(CPUState *cs, void *fdt, int offset, - sPAPRMachineState *spapr) -{ - PowerPCCPU *cpu = POWERPC_CPU(cs); - CPUPPCState *env = &cpu->env; - PowerPCCPUClass *pcc = POWERPC_CPU_GET_CLASS(cs); - int index = ppc_get_vcpu_dt_id(cpu); - 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; - uint32_t vcpus_per_socket = smp_threads * smp_cores; - uint32_t pft_size_prop[] = {0, cpu_to_be32(spapr->htab_shift)}; - - /* Note: we keep CI large pages off for now because a 64K capable guest - * provisioned with large pages might otherwise try to map a qemu - * framebuffer (or other kind of memory mapped PCI BAR) using 64K pages - * even if that qemu runs on a 4k host. - * - * We can later add this bit back when we are confident this is not - * an issue (!HV KVM or 64K host) - */ - uint8_t pa_features_206[] = { 6, 0, - 0xf6, 0x1f, 0xc7, 0x00, 0x80, 0xc0 }; - uint8_t pa_features_207[] = { 24, 0, - 0xf6, 0x1f, 0xc7, 0xc0, 0x80, 0xf0, - 0x80, 0x00, 0x00, 0x00, 0x00, 0x00, - 0x00, 0x00, 0x00, 0x00, 0x80, 0x00, - 0x80, 0x00, 0x80, 0x00, 0x80, 0x00 }; - uint8_t *pa_features; - size_t pa_size; - - _FDT((fdt_setprop_cell(fdt, offset, "reg", index))); - _FDT((fdt_setprop_string(fdt, offset, "device_type", "cpu"))); - - _FDT((fdt_setprop_cell(fdt, offset, "cpu-version", env->spr[SPR_PVR]))); - _FDT((fdt_setprop_cell(fdt, offset, "d-cache-block-size", - env->dcache_line_size))); - _FDT((fdt_setprop_cell(fdt, offset, "d-cache-line-size", - env->dcache_line_size))); - _FDT((fdt_setprop_cell(fdt, offset, "i-cache-block-size", - env->icache_line_size))); - _FDT((fdt_setprop_cell(fdt, offset, "i-cache-line-size", - env->icache_line_size))); - - if (pcc->l1_dcache_size) { - _FDT((fdt_setprop_cell(fdt, offset, "d-cache-size", - pcc->l1_dcache_size))); - } else { - fprintf(stderr, "Warning: Unknown L1 dcache size for cpu\n"); - } - if (pcc->l1_icache_size) { - _FDT((fdt_setprop_cell(fdt, offset, "i-cache-size", - pcc->l1_icache_size))); - } else { - fprintf(stderr, "Warning: Unknown L1 icache size for cpu\n"); - } - - _FDT((fdt_setprop_cell(fdt, offset, "timebase-frequency", tbfreq))); - _FDT((fdt_setprop_cell(fdt, offset, "clock-frequency", cpufreq))); - _FDT((fdt_setprop_cell(fdt, offset, "slb-size", env->slb_nr))); - _FDT((fdt_setprop_cell(fdt, offset, "ibm,slb-size", env->slb_nr))); - _FDT((fdt_setprop_string(fdt, offset, "status", "okay"))); - _FDT((fdt_setprop(fdt, offset, "64-bit", NULL, 0))); - - if (env->spr_cb[SPR_PURR].oea_read) { - _FDT((fdt_setprop(fdt, offset, "ibm,purr", NULL, 0))); - } - - if (env->mmu_model & POWERPC_MMU_1TSEG) { - _FDT((fdt_setprop(fdt, offset, "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_setprop_cell(fdt, offset, "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_setprop_cell(fdt, offset, "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_setprop(fdt, offset, "ibm,segment-page-sizes", - page_sizes_prop, page_sizes_prop_size))); - } - - /* Do the ibm,pa-features property, adjust it for ci-large-pages */ - if (env->mmu_model == POWERPC_MMU_2_06) { - pa_features = pa_features_206; - pa_size = sizeof(pa_features_206); - } else /* env->mmu_model == POWERPC_MMU_2_07 */ { - pa_features = pa_features_207; - pa_size = sizeof(pa_features_207); - } - if (env->ci_large_pages) { - pa_features[3] |= 0x20; - } - _FDT((fdt_setprop(fdt, offset, "ibm,pa-features", pa_features, pa_size))); - - _FDT((fdt_setprop_cell(fdt, offset, "ibm,chip-id", - cs->cpu_index / vcpus_per_socket))); - - _FDT((fdt_setprop(fdt, offset, "ibm,pft-size", - pft_size_prop, sizeof(pft_size_prop)))); - - _FDT(spapr_fixup_cpu_numa_dt(fdt, offset, cs)); - - _FDT(spapr_fixup_cpu_smt_dt(fdt, offset, cpu, - ppc_get_compat_smt_threads(cpu))); -} - -static void spapr_populate_cpus_dt_node(void *fdt, sPAPRMachineState *spapr) -{ - CPUState *cs; - int cpus_offset; - char *nodename; - int smt = kvmppc_smt_threads(); - - cpus_offset = fdt_add_subnode(fdt, 0, "cpus"); - _FDT(cpus_offset); - _FDT((fdt_setprop_cell(fdt, cpus_offset, "#address-cells", 0x1))); - _FDT((fdt_setprop_cell(fdt, cpus_offset, "#size-cells", 0x0))); - - /* - * We walk the CPUs in reverse order to ensure that CPU DT nodes - * created by fdt_add_subnode() end up in the right order in FDT - * for the guest kernel the enumerate the CPUs correctly. - */ - CPU_FOREACH_REVERSE(cs) { - PowerPCCPU *cpu = POWERPC_CPU(cs); - int index = ppc_get_vcpu_dt_id(cpu); - DeviceClass *dc = DEVICE_GET_CLASS(cs); - int offset; - - if ((index % smt) != 0) { - continue; - } - - nodename = g_strdup_printf("%s@%x", dc->fw_name, index); - offset = fdt_add_subnode(fdt, cpus_offset, nodename); - g_free(nodename); - _FDT(offset); - spapr_populate_cpu_dt(cs, fdt, offset, spapr); - } - -} - -/* - * Adds ibm,dynamic-reconfiguration-memory node. - * Refer to docs/specs/ppc-spapr-hotplug.txt for the documentation - * of this device tree node. - */ -static int spapr_populate_drconf_memory(sPAPRMachineState *spapr, void *fdt) -{ - MachineState *machine = MACHINE(spapr); - int ret, i, offset; - uint64_t lmb_size = SPAPR_MEMORY_BLOCK_SIZE; - uint32_t prop_lmb_size[] = {0, cpu_to_be32(lmb_size)}; - uint32_t nr_lmbs = (machine->maxram_size - machine->ram_size)/lmb_size; - uint32_t *int_buf, *cur_index, buf_len; - int nr_nodes = nb_numa_nodes ? nb_numa_nodes : 1; - - /* - * Don't create the node if there are no DR LMBs. - */ - if (!nr_lmbs) { - return 0; - } - - /* - * Allocate enough buffer size to fit in ibm,dynamic-memory - * or ibm,associativity-lookup-arrays - */ - buf_len = MAX(nr_lmbs * SPAPR_DR_LMB_LIST_ENTRY_SIZE + 1, nr_nodes * 4 + 2) - * sizeof(uint32_t); - cur_index = int_buf = g_malloc0(buf_len); - - offset = fdt_add_subnode(fdt, 0, "ibm,dynamic-reconfiguration-memory"); - - ret = fdt_setprop(fdt, offset, "ibm,lmb-size", prop_lmb_size, - sizeof(prop_lmb_size)); - if (ret < 0) { - goto out; - } - - ret = fdt_setprop_cell(fdt, offset, "ibm,memory-flags-mask", 0xff); - if (ret < 0) { - goto out; - } - - ret = fdt_setprop_cell(fdt, offset, "ibm,memory-preservation-time", 0x0); - if (ret < 0) { - goto out; - } - - /* ibm,dynamic-memory */ - int_buf[0] = cpu_to_be32(nr_lmbs); - cur_index++; - for (i = 0; i < nr_lmbs; i++) { - sPAPRDRConnector *drc; - sPAPRDRConnectorClass *drck; - uint64_t addr = i * lmb_size + spapr->hotplug_memory.base;; - uint32_t *dynamic_memory = cur_index; - - drc = spapr_dr_connector_by_id(SPAPR_DR_CONNECTOR_TYPE_LMB, - addr/lmb_size); - g_assert(drc); - drck = SPAPR_DR_CONNECTOR_GET_CLASS(drc); - - dynamic_memory[0] = cpu_to_be32(addr >> 32); - dynamic_memory[1] = cpu_to_be32(addr & 0xffffffff); - dynamic_memory[2] = cpu_to_be32(drck->get_index(drc)); - dynamic_memory[3] = cpu_to_be32(0); /* reserved */ - dynamic_memory[4] = cpu_to_be32(numa_get_node(addr, NULL)); - if (addr < machine->ram_size || - memory_region_present(get_system_memory(), addr)) { - dynamic_memory[5] = cpu_to_be32(SPAPR_LMB_FLAGS_ASSIGNED); - } else { - dynamic_memory[5] = cpu_to_be32(0); - } - - cur_index += SPAPR_DR_LMB_LIST_ENTRY_SIZE; - } - ret = fdt_setprop(fdt, offset, "ibm,dynamic-memory", int_buf, buf_len); - if (ret < 0) { - goto out; - } - - /* ibm,associativity-lookup-arrays */ - cur_index = int_buf; - int_buf[0] = cpu_to_be32(nr_nodes); - int_buf[1] = cpu_to_be32(4); /* Number of entries per associativity list */ - cur_index += 2; - for (i = 0; i < nr_nodes; i++) { - uint32_t associativity[] = { - cpu_to_be32(0x0), - cpu_to_be32(0x0), - cpu_to_be32(0x0), - cpu_to_be32(i) - }; - memcpy(cur_index, associativity, sizeof(associativity)); - cur_index += 4; - } - ret = fdt_setprop(fdt, offset, "ibm,associativity-lookup-arrays", int_buf, - (cur_index - int_buf) * sizeof(uint32_t)); -out: - g_free(int_buf); - return ret; -} - -int spapr_h_cas_compose_response(sPAPRMachineState *spapr, - target_ulong addr, target_ulong size, - bool cpu_update, bool memory_update) -{ - void *fdt, *fdt_skel; - sPAPRDeviceTreeUpdateHeader hdr = { .version_id = 1 }; - sPAPRMachineClass *smc = SPAPR_MACHINE_GET_CLASS(qdev_get_machine()); - - size -= sizeof(hdr); - - /* Create sceleton */ - fdt_skel = g_malloc0(size); - _FDT((fdt_create(fdt_skel, size))); - _FDT((fdt_begin_node(fdt_skel, ""))); - _FDT((fdt_end_node(fdt_skel))); - _FDT((fdt_finish(fdt_skel))); - fdt = g_malloc0(size); - _FDT((fdt_open_into(fdt_skel, fdt, size))); - g_free(fdt_skel); - - /* Fixup cpu nodes */ - if (cpu_update) { - _FDT((spapr_fixup_cpu_dt(fdt, spapr))); - } - - /* Generate ibm,dynamic-reconfiguration-memory node if required */ - if (memory_update && smc->dr_lmb_enabled) { - _FDT((spapr_populate_drconf_memory(spapr, fdt))); - } - - /* Pack resulting tree */ - _FDT((fdt_pack(fdt))); - - if (fdt_totalsize(fdt) + sizeof(hdr) > size) { - trace_spapr_cas_failed(size); - return -1; - } - - cpu_physical_memory_write(addr, &hdr, sizeof(hdr)); - cpu_physical_memory_write(addr + sizeof(hdr), fdt, fdt_totalsize(fdt)); - trace_spapr_cas_continue(fdt_totalsize(fdt) + sizeof(hdr)); - g_free(fdt); - - return 0; -} - -static void spapr_finalize_fdt(sPAPRMachineState *spapr, - hwaddr fdt_addr, - hwaddr rtas_addr, - hwaddr rtas_size) -{ - MachineState *machine = MACHINE(qdev_get_machine()); - sPAPRMachineClass *smc = SPAPR_MACHINE_GET_CLASS(machine); - const char *boot_device = machine->boot_order; - int ret, i; - size_t cb = 0; - char *bootlist; - 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); - } - - if (object_resolve_path_type("", TYPE_SPAPR_RNG, NULL)) { - ret = spapr_rng_populate_dt(fdt); - if (ret < 0) { - fprintf(stderr, "could not set up rng device in the fdt\n"); - exit(1); - } - } - - QLIST_FOREACH(phb, &spapr->phbs, list) { - ret = spapr_populate_pci_dt(phb, PHANDLE_XICP, fdt); - if (ret < 0) { - error_report("couldn't setup PCI devices in fdt"); - 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"); - } - - /* cpus */ - spapr_populate_cpus_dt_node(fdt, spapr); - - bootlist = get_boot_devices_list(&cb, true); - if (cb && bootlist) { - int offset = fdt_path_offset(fdt, "/chosen"); - if (offset < 0) { - exit(1); - } - for (i = 0; i < cb; i++) { - if (bootlist[i] == '\n') { - bootlist[i] = ' '; - } - - } - ret = fdt_setprop_string(fdt, offset, "qemu,boot-list", bootlist); - } - - if (boot_device && strlen(boot_device)) { - int offset = fdt_path_offset(fdt, "/chosen"); - - if (offset < 0) { - exit(1); - } - fdt_setprop_string(fdt, offset, "qemu,boot-device", boot_device); - } - - if (!spapr->has_graphics) { - spapr_populate_chosen_stdout(fdt, spapr->vio_bus); - } - - if (smc->dr_lmb_enabled) { - _FDT(spapr_drc_populate_dt(fdt, 0, NULL, SPAPR_DR_CONNECTOR_TYPE_LMB)); - } - - _FDT((fdt_pack(fdt))); - - if (fdt_totalsize(fdt) > FDT_MAX_SIZE) { - error_report("FDT too big ! 0x%x bytes (max is 0x%x)", - fdt_totalsize(fdt), FDT_MAX_SIZE); - exit(1); - } - - qemu_fdt_dumpdtb(fdt, fdt_totalsize(fdt)); - cpu_physical_memory_write(fdt_addr, fdt, fdt_totalsize(fdt)); - - g_free(bootlist); - 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]); - } -} - -#define HPTE(_table, _i) (void *)(((uint64_t *)(_table)) + ((_i) * 2)) -#define HPTE_VALID(_hpte) (tswap64(*((uint64_t *)(_hpte))) & HPTE64_V_VALID) -#define HPTE_DIRTY(_hpte) (tswap64(*((uint64_t *)(_hpte))) & HPTE64_V_HPTE_DIRTY) -#define CLEAN_HPTE(_hpte) ((*(uint64_t *)(_hpte)) &= tswap64(~HPTE64_V_HPTE_DIRTY)) -#define DIRTY_HPTE(_hpte) ((*(uint64_t *)(_hpte)) |= tswap64(HPTE64_V_HPTE_DIRTY)) - -/* - * Get the fd to access the kernel htab, re-opening it if necessary - */ -static int get_htab_fd(sPAPRMachineState *spapr) -{ - if (spapr->htab_fd >= 0) { - return spapr->htab_fd; - } - - spapr->htab_fd = kvmppc_get_htab_fd(false); - if (spapr->htab_fd < 0) { - error_report("Unable to open fd for reading hash table from KVM: %s", - strerror(errno)); - } - - return spapr->htab_fd; -} - -static void close_htab_fd(sPAPRMachineState *spapr) -{ - if (spapr->htab_fd >= 0) { - close(spapr->htab_fd); - } - spapr->htab_fd = -1; -} - -static int spapr_hpt_shift_for_ramsize(uint64_t ramsize) -{ - int shift; - - /* We aim for a hash table of size 1/128 the size of RAM (rounded - * up). The PAPR recommendation is actually 1/64 of RAM size, but - * that's much more than is needed for Linux guests */ - shift = ctz64(pow2ceil(ramsize)) - 7; - shift = MAX(shift, 18); /* Minimum architected size */ - shift = MIN(shift, 46); /* Maximum architected size */ - return shift; -} - -static void spapr_reallocate_hpt(sPAPRMachineState *spapr, int shift, - Error **errp) -{ - long rc; - - /* Clean up any HPT info from a previous boot */ - g_free(spapr->htab); - spapr->htab = NULL; - spapr->htab_shift = 0; - close_htab_fd(spapr); - - rc = kvmppc_reset_htab(shift); - if (rc < 0) { - /* kernel-side HPT needed, but couldn't allocate one */ - error_setg_errno(errp, errno, - "Failed to allocate KVM HPT of order %d (try smaller maxmem?)", - shift); - /* This is almost certainly fatal, but if the caller really - * wants to carry on with shift == 0, it's welcome to try */ - } else if (rc > 0) { - /* kernel-side HPT allocated */ - if (rc != shift) { - error_setg(errp, - "Requested order %d HPT, but kernel allocated order %ld (try smaller maxmem?)", - shift, rc); - } - - spapr->htab_shift = shift; - spapr->htab = NULL; - } else { - /* kernel-side HPT not needed, allocate in userspace instead */ - size_t size = 1ULL << shift; - int i; - - spapr->htab = qemu_memalign(size, size); - if (!spapr->htab) { - error_setg_errno(errp, errno, - "Could not allocate HPT of order %d", shift); - return; - } - - memset(spapr->htab, 0, size); - spapr->htab_shift = shift; - - for (i = 0; i < size / HASH_PTE_SIZE_64; i++) { - DIRTY_HPTE(HPTE(spapr->htab, i)); - } - } -} - -static int find_unknown_sysbus_device(SysBusDevice *sbdev, void *opaque) -{ - bool matched = false; - - if (object_dynamic_cast(OBJECT(sbdev), TYPE_SPAPR_PCI_HOST_BRIDGE)) { - matched = true; - } - - if (!matched) { - error_report("Device %s is not supported by this machine yet.", - qdev_fw_name(DEVICE(sbdev))); - exit(1); - } - - return 0; -} - -static void ppc_spapr_reset(void) -{ - MachineState *machine = MACHINE(qdev_get_machine()); - sPAPRMachineState *spapr = SPAPR_MACHINE(machine); - PowerPCCPU *first_ppc_cpu; - uint32_t rtas_limit; - - /* Check for unknown sysbus devices */ - foreach_dynamic_sysbus_device(find_unknown_sysbus_device, NULL); - - /* Allocate and/or reset the hash page table */ - spapr_reallocate_hpt(spapr, - spapr_hpt_shift_for_ramsize(machine->maxram_size), - &error_fatal); - - /* Update the RMA size if necessary */ - if (spapr->vrma_adjust) { - spapr->rma_size = kvmppc_rma_size(spapr_node0_size(), - spapr->htab_shift); - } - - 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; - first_ppc_cpu->env.gpr[5] = 0; - first_cpu->halted = 0; - first_ppc_cpu->env.nip = SPAPR_ENTRY_POINT; - -} - -static void spapr_cpu_reset(void *opaque) -{ - sPAPRMachineState *spapr = SPAPR_MACHINE(qdev_get_machine()); - PowerPCCPU *cpu = opaque; - CPUState *cs = CPU(cpu); - CPUPPCState *env = &cpu->env; - - cpu_reset(cs); - - /* 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 */ - cs->halted = 1; - - env->spr[SPR_HIOR] = 0; - - ppc_hash64_set_external_hpt(cpu, spapr->htab, spapr->htab_shift, - &error_fatal); -} - -static void spapr_create_nvram(sPAPRMachineState *spapr) -{ - DeviceState *dev = qdev_create(&spapr->vio_bus->bus, "spapr-nvram"); - DriveInfo *dinfo = drive_get(IF_PFLASH, 0, 0); - - if (dinfo) { - qdev_prop_set_drive(dev, "drive", blk_by_legacy_dinfo(dinfo), - &error_fatal); - } - - qdev_init_nofail(dev); - - spapr->nvram = (struct sPAPRNVRAM *)dev; -} - -static void spapr_rtc_create(sPAPRMachineState *spapr) -{ - DeviceState *dev = qdev_create(NULL, TYPE_SPAPR_RTC); - - qdev_init_nofail(dev); - spapr->rtc = dev; - - object_property_add_alias(qdev_get_machine(), "rtc-time", - OBJECT(spapr->rtc), "date", NULL); -} - -/* Returns whether we want to use VGA or not */ -static bool spapr_vga_init(PCIBus *pci_bus, Error **errp) -{ - switch (vga_interface_type) { - case VGA_NONE: - return false; - case VGA_DEVICE: - return true; - case VGA_STD: - case VGA_VIRTIO: - return pci_vga_init(pci_bus) != NULL; - default: - error_setg(errp, - "Unsupported VGA mode, only -vga std or -vga virtio is supported"); - return false; - } -} - -static int spapr_post_load(void *opaque, int version_id) -{ - sPAPRMachineState *spapr = (sPAPRMachineState *)opaque; - int err = 0; - - /* In earlier versions, there was no separate qdev for the PAPR - * RTC, so the RTC offset was stored directly in sPAPREnvironment. - * So when migrating from those versions, poke the incoming offset - * value into the RTC device */ - if (version_id < 3) { - err = spapr_rtc_import_offset(spapr->rtc, spapr->rtc_offset); - } - - return err; -} - -static bool version_before_3(void *opaque, int version_id) -{ - return version_id < 3; -} - -static const VMStateDescription vmstate_spapr = { - .name = "spapr", - .version_id = 3, - .minimum_version_id = 1, - .post_load = spapr_post_load, - .fields = (VMStateField[]) { - /* used to be @next_irq */ - VMSTATE_UNUSED_BUFFER(version_before_3, 0, 4), - - /* RTC offset */ - VMSTATE_UINT64_TEST(rtc_offset, sPAPRMachineState, version_before_3), - - VMSTATE_PPC_TIMEBASE_V(tb, sPAPRMachineState, 2), - VMSTATE_END_OF_LIST() - }, -}; - -static int htab_save_setup(QEMUFile *f, void *opaque) -{ - sPAPRMachineState *spapr = opaque; - - /* "Iteration" header */ - qemu_put_be32(f, spapr->htab_shift); - - if (spapr->htab) { - spapr->htab_save_index = 0; - spapr->htab_first_pass = true; - } else { - assert(kvm_enabled()); - } - - - return 0; -} - -static void htab_save_first_pass(QEMUFile *f, sPAPRMachineState *spapr, - int64_t max_ns) -{ - bool has_timeout = max_ns != -1; - int htabslots = HTAB_SIZE(spapr) / HASH_PTE_SIZE_64; - int index = spapr->htab_save_index; - int64_t starttime = qemu_clock_get_ns(QEMU_CLOCK_REALTIME); - - assert(spapr->htab_first_pass); - - do { - int chunkstart; - - /* Consume invalid HPTEs */ - while ((index < htabslots) - && !HPTE_VALID(HPTE(spapr->htab, index))) { - index++; - CLEAN_HPTE(HPTE(spapr->htab, index)); - } - - /* Consume valid HPTEs */ - chunkstart = index; - while ((index < htabslots) && (index - chunkstart < USHRT_MAX) - && HPTE_VALID(HPTE(spapr->htab, index))) { - index++; - CLEAN_HPTE(HPTE(spapr->htab, index)); - } - - if (index > chunkstart) { - int n_valid = index - chunkstart; - - qemu_put_be32(f, chunkstart); - qemu_put_be16(f, n_valid); - qemu_put_be16(f, 0); - qemu_put_buffer(f, HPTE(spapr->htab, chunkstart), - HASH_PTE_SIZE_64 * n_valid); - - if (has_timeout && - (qemu_clock_get_ns(QEMU_CLOCK_REALTIME) - starttime) > max_ns) { - break; - } - } - } while ((index < htabslots) && !qemu_file_rate_limit(f)); - - if (index >= htabslots) { - assert(index == htabslots); - index = 0; - spapr->htab_first_pass = false; - } - spapr->htab_save_index = index; -} - -static int htab_save_later_pass(QEMUFile *f, sPAPRMachineState *spapr, - int64_t max_ns) -{ - bool final = max_ns < 0; - int htabslots = HTAB_SIZE(spapr) / HASH_PTE_SIZE_64; - int examined = 0, sent = 0; - int index = spapr->htab_save_index; - int64_t starttime = qemu_clock_get_ns(QEMU_CLOCK_REALTIME); - - assert(!spapr->htab_first_pass); - - do { - int chunkstart, invalidstart; - - /* Consume non-dirty HPTEs */ - while ((index < htabslots) - && !HPTE_DIRTY(HPTE(spapr->htab, index))) { - index++; - examined++; - } - - chunkstart = index; - /* Consume valid dirty HPTEs */ - while ((index < htabslots) && (index - chunkstart < USHRT_MAX) - && HPTE_DIRTY(HPTE(spapr->htab, index)) - && HPTE_VALID(HPTE(spapr->htab, index))) { - CLEAN_HPTE(HPTE(spapr->htab, index)); - index++; - examined++; - } - - invalidstart = index; - /* Consume invalid dirty HPTEs */ - while ((index < htabslots) && (index - invalidstart < USHRT_MAX) - && HPTE_DIRTY(HPTE(spapr->htab, index)) - && !HPTE_VALID(HPTE(spapr->htab, index))) { - CLEAN_HPTE(HPTE(spapr->htab, index)); - index++; - examined++; - } - - if (index > chunkstart) { - int n_valid = invalidstart - chunkstart; - int n_invalid = index - invalidstart; - - qemu_put_be32(f, chunkstart); - qemu_put_be16(f, n_valid); - qemu_put_be16(f, n_invalid); - qemu_put_buffer(f, HPTE(spapr->htab, chunkstart), - HASH_PTE_SIZE_64 * n_valid); - sent += index - chunkstart; - - if (!final && (qemu_clock_get_ns(QEMU_CLOCK_REALTIME) - starttime) > max_ns) { - break; - } - } - - if (examined >= htabslots) { - break; - } - - if (index >= htabslots) { - assert(index == htabslots); - index = 0; - } - } while ((examined < htabslots) && (!qemu_file_rate_limit(f) || final)); - - if (index >= htabslots) { - assert(index == htabslots); - index = 0; - } - - spapr->htab_save_index = index; - - return (examined >= htabslots) && (sent == 0) ? 1 : 0; -} - -#define MAX_ITERATION_NS 5000000 /* 5 ms */ -#define MAX_KVM_BUF_SIZE 2048 - -static int htab_save_iterate(QEMUFile *f, void *opaque) -{ - sPAPRMachineState *spapr = opaque; - int fd; - int rc = 0; - - /* Iteration header */ - qemu_put_be32(f, 0); - - if (!spapr->htab) { - assert(kvm_enabled()); - - fd = get_htab_fd(spapr); - if (fd < 0) { - return fd; - } - - rc = kvmppc_save_htab(f, fd, MAX_KVM_BUF_SIZE, MAX_ITERATION_NS); - if (rc < 0) { - return rc; - } - } else if (spapr->htab_first_pass) { - htab_save_first_pass(f, spapr, MAX_ITERATION_NS); - } else { - rc = htab_save_later_pass(f, spapr, MAX_ITERATION_NS); - } - - /* End marker */ - qemu_put_be32(f, 0); - qemu_put_be16(f, 0); - qemu_put_be16(f, 0); - - return rc; -} - -static int htab_save_complete(QEMUFile *f, void *opaque) -{ - sPAPRMachineState *spapr = opaque; - int fd; - - /* Iteration header */ - qemu_put_be32(f, 0); - - if (!spapr->htab) { - int rc; - - assert(kvm_enabled()); - - fd = get_htab_fd(spapr); - if (fd < 0) { - return fd; - } - - rc = kvmppc_save_htab(f, fd, MAX_KVM_BUF_SIZE, -1); - if (rc < 0) { - return rc; - } - close_htab_fd(spapr); - } else { - if (spapr->htab_first_pass) { - htab_save_first_pass(f, spapr, -1); - } - htab_save_later_pass(f, spapr, -1); - } - - /* End marker */ - qemu_put_be32(f, 0); - qemu_put_be16(f, 0); - qemu_put_be16(f, 0); - - return 0; -} - -static int htab_load(QEMUFile *f, void *opaque, int version_id) -{ - sPAPRMachineState *spapr = opaque; - uint32_t section_hdr; - int fd = -1; - - if (version_id < 1 || version_id > 1) { - error_report("htab_load() bad version"); - return -EINVAL; - } - - section_hdr = qemu_get_be32(f); - - if (section_hdr) { - Error *local_err = NULL; - - /* First section gives the htab size */ - spapr_reallocate_hpt(spapr, section_hdr, &local_err); - if (local_err) { - error_report_err(local_err); - return -EINVAL; - } - return 0; - } - - if (!spapr->htab) { - assert(kvm_enabled()); - - fd = kvmppc_get_htab_fd(true); - if (fd < 0) { - error_report("Unable to open fd to restore KVM hash table: %s", - strerror(errno)); - } - } - - while (true) { - uint32_t index; - uint16_t n_valid, n_invalid; - - index = qemu_get_be32(f); - n_valid = qemu_get_be16(f); - n_invalid = qemu_get_be16(f); - - if ((index == 0) && (n_valid == 0) && (n_invalid == 0)) { - /* End of Stream */ - break; - } - - if ((index + n_valid + n_invalid) > - (HTAB_SIZE(spapr) / HASH_PTE_SIZE_64)) { - /* Bad index in stream */ - error_report( - "htab_load() bad index %d (%hd+%hd entries) in htab stream (htab_shift=%d)", - index, n_valid, n_invalid, spapr->htab_shift); - return -EINVAL; - } - - if (spapr->htab) { - if (n_valid) { - qemu_get_buffer(f, HPTE(spapr->htab, index), - HASH_PTE_SIZE_64 * n_valid); - } - if (n_invalid) { - memset(HPTE(spapr->htab, index + n_valid), 0, - HASH_PTE_SIZE_64 * n_invalid); - } - } else { - int rc; - - assert(fd >= 0); - - rc = kvmppc_load_htab_chunk(f, fd, index, n_valid, n_invalid); - if (rc < 0) { - return rc; - } - } - } - - if (!spapr->htab) { - assert(fd >= 0); - close(fd); - } - - return 0; -} - -static SaveVMHandlers savevm_htab_handlers = { - .save_live_setup = htab_save_setup, - .save_live_iterate = htab_save_iterate, - .save_live_complete_precopy = htab_save_complete, - .load_state = htab_load, -}; - -static void spapr_boot_set(void *opaque, const char *boot_device, - Error **errp) -{ - MachineState *machine = MACHINE(qdev_get_machine()); - machine->boot_order = g_strdup(boot_device); -} - -static void spapr_cpu_init(sPAPRMachineState *spapr, PowerPCCPU *cpu, - Error **errp) -{ - CPUPPCState *env = &cpu->env; - - /* Set time-base frequency to 512 MHz */ - cpu_ppc_tb_init(env, TIMEBASE_FREQ); - - /* Enable PAPR mode in TCG or KVM */ - cpu_ppc_set_papr(cpu); - - if (cpu->max_compat) { - Error *local_err = NULL; - - ppc_set_compat(cpu, cpu->max_compat, &local_err); - if (local_err) { - error_propagate(errp, local_err); - return; - } - } - - xics_cpu_setup(spapr->icp, cpu); - - qemu_register_reset(spapr_cpu_reset, cpu); -} - -/* - * Reset routine for LMB DR devices. - * - * Unlike PCI DR devices, LMB DR devices explicitly register this reset - * routine. Reset for PCI DR devices will be handled by PHB reset routine - * when it walks all its children devices. LMB devices reset occurs - * as part of spapr_ppc_reset(). - */ -static void spapr_drc_reset(void *opaque) -{ - sPAPRDRConnector *drc = opaque; - DeviceState *d = DEVICE(drc); - - if (d) { - device_reset(d); - } -} - -static void spapr_create_lmb_dr_connectors(sPAPRMachineState *spapr) -{ - MachineState *machine = MACHINE(spapr); - uint64_t lmb_size = SPAPR_MEMORY_BLOCK_SIZE; - uint32_t nr_lmbs = (machine->maxram_size - machine->ram_size)/lmb_size; - int i; - - for (i = 0; i < nr_lmbs; i++) { - sPAPRDRConnector *drc; - uint64_t addr; - - addr = i * lmb_size + spapr->hotplug_memory.base; - drc = spapr_dr_connector_new(OBJECT(spapr), SPAPR_DR_CONNECTOR_TYPE_LMB, - addr/lmb_size); - qemu_register_reset(spapr_drc_reset, drc); - } -} - -/* - * If RAM size, maxmem size and individual node mem sizes aren't aligned - * to SPAPR_MEMORY_BLOCK_SIZE(256MB), then refuse to start the guest - * since we can't support such unaligned sizes with DRCONF_MEMORY. - */ -static void spapr_validate_node_memory(MachineState *machine, Error **errp) -{ - int i; - - if (machine->ram_size % SPAPR_MEMORY_BLOCK_SIZE) { - error_setg(errp, "Memory size 0x" RAM_ADDR_FMT - " is not aligned to %llu MiB", - machine->ram_size, - SPAPR_MEMORY_BLOCK_SIZE / M_BYTE); - return; - } - - if (machine->maxram_size % SPAPR_MEMORY_BLOCK_SIZE) { - error_setg(errp, "Maximum memory size 0x" RAM_ADDR_FMT - " is not aligned to %llu MiB", - machine->ram_size, - SPAPR_MEMORY_BLOCK_SIZE / M_BYTE); - return; - } - - for (i = 0; i < nb_numa_nodes; i++) { - if (numa_info[i].node_mem % SPAPR_MEMORY_BLOCK_SIZE) { - error_setg(errp, - "Node %d memory size 0x%" PRIx64 - " is not aligned to %llu MiB", - i, numa_info[i].node_mem, - SPAPR_MEMORY_BLOCK_SIZE / M_BYTE); - return; - } - } -} - -/* pSeries LPAR / sPAPR hardware init */ -static void ppc_spapr_init(MachineState *machine) -{ - sPAPRMachineState *spapr = SPAPR_MACHINE(machine); - sPAPRMachineClass *smc = SPAPR_MACHINE_GET_CLASS(machine); - const char *kernel_filename = machine->kernel_filename; - const char *kernel_cmdline = machine->kernel_cmdline; - const char *initrd_filename = machine->initrd_filename; - PowerPCCPU *cpu; - PCIHostState *phb; - int i; - MemoryRegion *sysmem = get_system_memory(); - MemoryRegion *ram = g_new(MemoryRegion, 1); - MemoryRegion *rma_region; - void *rma = NULL; - hwaddr rma_alloc_size; - hwaddr node0_size = spapr_node0_size(); - uint32_t initrd_base = 0; - long kernel_size = 0, initrd_size = 0; - long load_limit, fw_size; - bool kernel_le = false; - char *filename; - - msi_nonbroken = true; - - QLIST_INIT(&spapr->phbs); - - cpu_ppc_hypercall = emulate_spapr_hypercall; - - /* Allocate RMA if necessary */ - rma_alloc_size = kvmppc_alloc_rma(&rma); - - if (rma_alloc_size == -1) { - error_report("Unable to create RMA"); - exit(1); - } - - if (rma_alloc_size && (rma_alloc_size < node0_size)) { - spapr->rma_size = rma_alloc_size; - } else { - spapr->rma_size = node0_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); - } - } - - if (spapr->rma_size > node0_size) { - error_report("Numa node 0 has to span the RMA (%#08"HWADDR_PRIx")", - spapr->rma_size); - exit(1); - } - - /* Setup a load limit for the ramdisk leaving room for SLOF and FDT */ - load_limit = MIN(spapr->rma_size, RTAS_MAX_ADDR) - FW_OVERHEAD; - - /* Set up Interrupt Controller before we create the VCPUs */ - spapr->icp = xics_system_init(machine, - DIV_ROUND_UP(max_cpus * kvmppc_smt_threads(), - smp_threads), - XICS_IRQS, &error_fatal); - - if (smc->dr_lmb_enabled) { - spapr_validate_node_memory(machine, &error_fatal); - } - - /* init CPUs */ - if (machine->cpu_model == NULL) { - machine->cpu_model = kvm_enabled() ? "host" : "POWER7"; - } - for (i = 0; i < smp_cpus; i++) { - cpu = cpu_ppc_init(machine->cpu_model); - if (cpu == NULL) { - error_report("Unable to find PowerPC CPU definition"); - exit(1); - } - spapr_cpu_init(spapr, cpu, &error_fatal); - } - - if (kvm_enabled()) { - /* Enable H_LOGICAL_CI_* so SLOF can talk to in-kernel devices */ - kvmppc_enable_logical_ci_hcalls(); - kvmppc_enable_set_mode_hcall(); - } - - /* allocate RAM */ - memory_region_allocate_system_memory(ram, NULL, "ppc_spapr.ram", - machine->ram_size); - memory_region_add_subregion(sysmem, 0, ram); - - if (rma_alloc_size && rma) { - rma_region = g_new(MemoryRegion, 1); - memory_region_init_ram_ptr(rma_region, NULL, "ppc_spapr.rma", - rma_alloc_size, rma); - vmstate_register_ram_global(rma_region); - memory_region_add_subregion(sysmem, 0, rma_region); - } - - /* initialize hotplug memory address space */ - if (machine->ram_size < machine->maxram_size) { - ram_addr_t hotplug_mem_size = machine->maxram_size - machine->ram_size; - - if (machine->ram_slots > SPAPR_MAX_RAM_SLOTS) { - error_report("Specified number of memory slots %" - PRIu64" exceeds max supported %d", - machine->ram_slots, SPAPR_MAX_RAM_SLOTS); - exit(1); - } - - spapr->hotplug_memory.base = ROUND_UP(machine->ram_size, - SPAPR_HOTPLUG_MEM_ALIGN); - memory_region_init(&spapr->hotplug_memory.mr, OBJECT(spapr), - "hotplug-memory", hotplug_mem_size); - memory_region_add_subregion(sysmem, spapr->hotplug_memory.base, - &spapr->hotplug_memory.mr); - } - - if (smc->dr_lmb_enabled) { - spapr_create_lmb_dr_connectors(spapr); - } - - filename = qemu_find_file(QEMU_FILE_TYPE_BIOS, "spapr-rtas.bin"); - if (!filename) { - error_report("Could not find LPAR rtas '%s'", "spapr-rtas.bin"); - exit(1); - } - 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) { - error_report("Could not load LPAR rtas '%s'", filename); - exit(1); - } - if (spapr->rtas_size > RTAS_MAX_SIZE) { - error_report("RTAS too big ! 0x%zx bytes (max is 0x%x)", - (size_t)spapr->rtas_size, RTAS_MAX_SIZE); - exit(1); - } - g_free(filename); - - /* Set up EPOW events infrastructure */ - spapr_events_init(spapr); - - /* Set up the RTC RTAS interfaces */ - spapr_rtc_create(spapr); - - /* 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); - - 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], phb->bus, 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, &error_fatal)) { - spapr->has_graphics = true; - machine->usb |= defaults_enabled() && !machine->usb_disabled; - } - - if (machine->usb) { - if (smc->use_ohci_by_default) { - pci_create_simple(phb->bus, -1, "pci-ohci"); - } else { - pci_create_simple(phb->bus, -1, "nec-usb-xhci"); - } - - if (spapr->has_graphics) { - USBBus *usb_bus = usb_bus_find(-1); - - usb_create_simple(usb_bus, "usb-kbd"); - usb_create_simple(usb_bus, "usb-mouse"); - } - } - - if (spapr->rma_size < (MIN_RMA_SLOF << 20)) { - error_report( - "pSeries SLOF firmware requires >= %ldM guest RMA (Real Mode Area memory)", - 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, PPC_ELF_MACHINE, - 0, 0); - if (kernel_size == ELF_LOAD_WRONG_ENDIAN) { - kernel_size = load_elf(kernel_filename, - translate_kernel_address, NULL, - NULL, &lowaddr, NULL, 0, PPC_ELF_MACHINE, - 0, 0); - kernel_le = kernel_size > 0; - } - if (kernel_size < 0) { - error_report("error loading %s: %s", - kernel_filename, load_elf_strerror(kernel_size)); - 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) { - error_report("could not load initial ram disk '%s'", - initrd_filename); - exit(1); - } - } else { - initrd_base = 0; - initrd_size = 0; - } - } - - if (bios_name == NULL) { - bios_name = FW_FILE_NAME; - } - filename = qemu_find_file(QEMU_FILE_TYPE_BIOS, bios_name); - if (!filename) { - error_report("Could not find LPAR firmware '%s'", bios_name); - exit(1); - } - fw_size = load_image_targphys(filename, 0, FW_MAX_SIZE); - if (fw_size <= 0) { - error_report("Could not load LPAR firmware '%s'", filename); - exit(1); - } - g_free(filename); - - /* FIXME: Should register things through the MachineState's qdev - * interface, this is a legacy from the sPAPREnvironment structure - * which predated MachineState but had a similar function */ - vmstate_register(NULL, 0, &vmstate_spapr, spapr); - register_savevm_live(NULL, "spapr/htab", -1, 1, - &savevm_htab_handlers, spapr); - - /* Prepare the device tree */ - spapr->fdt_skel = spapr_create_fdt_skel(initrd_base, initrd_size, - kernel_size, kernel_le, - kernel_cmdline, - spapr->check_exception_irq); - assert(spapr->fdt_skel != NULL); - - /* used by RTAS */ - QTAILQ_INIT(&spapr->ccs_list); - qemu_register_reset(spapr_ccs_reset_hook, spapr); - - qemu_register_boot_set(spapr_boot_set, spapr); -} - -static int spapr_kvm_type(const char *vm_type) -{ - if (!vm_type) { - return 0; - } - - if (!strcmp(vm_type, "HV")) { - return 1; - } - - if (!strcmp(vm_type, "PR")) { - return 2; - } - - error_report("Unknown kvm-type specified '%s'", vm_type); - exit(1); -} - -/* - * Implementation of an interface to adjust firmware path - * for the bootindex property handling. - */ -static char *spapr_get_fw_dev_path(FWPathProvider *p, BusState *bus, - DeviceState *dev) -{ -#define CAST(type, obj, name) \ - ((type *)object_dynamic_cast(OBJECT(obj), (name))) - SCSIDevice *d = CAST(SCSIDevice, dev, TYPE_SCSI_DEVICE); - sPAPRPHBState *phb = CAST(sPAPRPHBState, dev, TYPE_SPAPR_PCI_HOST_BRIDGE); - - if (d) { - void *spapr = CAST(void, bus->parent, "spapr-vscsi"); - VirtIOSCSI *virtio = CAST(VirtIOSCSI, bus->parent, TYPE_VIRTIO_SCSI); - USBDevice *usb = CAST(USBDevice, bus->parent, TYPE_USB_DEVICE); - - if (spapr) { - /* - * Replace "channel@0/disk@0,0" with "disk@8000000000000000": - * We use SRP luns of the form 8000 | (bus << 8) | (id << 5) | lun - * in the top 16 bits of the 64-bit LUN - */ - unsigned id = 0x8000 | (d->id << 8) | d->lun; - return g_strdup_printf("%s@%"PRIX64, qdev_fw_name(dev), - (uint64_t)id << 48); - } else if (virtio) { - /* - * We use SRP luns of the form 01000000 | (target << 8) | lun - * in the top 32 bits of the 64-bit LUN - * Note: the quote above is from SLOF and it is wrong, - * the actual binding is: - * swap 0100 or 10 << or 20 << ( target lun-id -- srplun ) - */ - unsigned id = 0x1000000 | (d->id << 16) | d->lun; - return g_strdup_printf("%s@%"PRIX64, qdev_fw_name(dev), - (uint64_t)id << 32); - } else if (usb) { - /* - * We use SRP luns of the form 01000000 | (usb-port << 16) | lun - * in the top 32 bits of the 64-bit LUN - */ - unsigned usb_port = atoi(usb->port->path); - unsigned id = 0x1000000 | (usb_port << 16) | d->lun; - return g_strdup_printf("%s@%"PRIX64, qdev_fw_name(dev), - (uint64_t)id << 32); - } - } - - if (phb) { - /* Replace "pci" with "pci@800000020000000" */ - return g_strdup_printf("pci@%"PRIX64, phb->buid); - } - - return NULL; -} - -static char *spapr_get_kvm_type(Object *obj, Error **errp) -{ - sPAPRMachineState *spapr = SPAPR_MACHINE(obj); - - return g_strdup(spapr->kvm_type); -} - -static void spapr_set_kvm_type(Object *obj, const char *value, Error **errp) -{ - sPAPRMachineState *spapr = SPAPR_MACHINE(obj); - - g_free(spapr->kvm_type); - spapr->kvm_type = g_strdup(value); -} - -static void spapr_machine_initfn(Object *obj) -{ - sPAPRMachineState *spapr = SPAPR_MACHINE(obj); - - spapr->htab_fd = -1; - object_property_add_str(obj, "kvm-type", - spapr_get_kvm_type, spapr_set_kvm_type, NULL); - object_property_set_description(obj, "kvm-type", - "Specifies the KVM virtualization mode (HV, PR)", - NULL); -} - -static void spapr_machine_finalizefn(Object *obj) -{ - sPAPRMachineState *spapr = SPAPR_MACHINE(obj); - - g_free(spapr->kvm_type); -} - -static void ppc_cpu_do_nmi_on_cpu(void *arg) -{ - CPUState *cs = arg; - - cpu_synchronize_state(cs); - ppc_cpu_do_system_reset(cs); -} - -static void spapr_nmi(NMIState *n, int cpu_index, Error **errp) -{ - CPUState *cs; - - CPU_FOREACH(cs) { - async_run_on_cpu(cs, ppc_cpu_do_nmi_on_cpu, cs); - } -} - -static void spapr_add_lmbs(DeviceState *dev, uint64_t addr, uint64_t size, - uint32_t node, Error **errp) -{ - sPAPRDRConnector *drc; - sPAPRDRConnectorClass *drck; - uint32_t nr_lmbs = size/SPAPR_MEMORY_BLOCK_SIZE; - int i, fdt_offset, fdt_size; - void *fdt; - - /* - * Check for DRC connectors and send hotplug notification to the - * guest only in case of hotplugged memory. This allows cold plugged - * memory to be specified at boot time. - */ - if (!dev->hotplugged) { - return; - } - - for (i = 0; i < nr_lmbs; i++) { - drc = spapr_dr_connector_by_id(SPAPR_DR_CONNECTOR_TYPE_LMB, - addr/SPAPR_MEMORY_BLOCK_SIZE); - g_assert(drc); - - fdt = create_device_tree(&fdt_size); - fdt_offset = spapr_populate_memory_node(fdt, node, addr, - SPAPR_MEMORY_BLOCK_SIZE); - - drck = SPAPR_DR_CONNECTOR_GET_CLASS(drc); - drck->attach(drc, dev, fdt, fdt_offset, !dev->hotplugged, errp); - addr += SPAPR_MEMORY_BLOCK_SIZE; - } - spapr_hotplug_req_add_by_count(SPAPR_DR_CONNECTOR_TYPE_LMB, nr_lmbs); -} - -static void spapr_memory_plug(HotplugHandler *hotplug_dev, DeviceState *dev, - uint32_t node, Error **errp) -{ - Error *local_err = NULL; - sPAPRMachineState *ms = SPAPR_MACHINE(hotplug_dev); - PCDIMMDevice *dimm = PC_DIMM(dev); - PCDIMMDeviceClass *ddc = PC_DIMM_GET_CLASS(dimm); - MemoryRegion *mr = ddc->get_memory_region(dimm); - uint64_t align = memory_region_get_alignment(mr); - uint64_t size = memory_region_size(mr); - uint64_t addr; - - if (size % SPAPR_MEMORY_BLOCK_SIZE) { - error_setg(&local_err, "Hotplugged memory size must be a multiple of " - "%lld MB", SPAPR_MEMORY_BLOCK_SIZE/M_BYTE); - goto out; - } - - pc_dimm_memory_plug(dev, &ms->hotplug_memory, mr, align, &local_err); - if (local_err) { - goto out; - } - - addr = object_property_get_int(OBJECT(dimm), PC_DIMM_ADDR_PROP, &local_err); - if (local_err) { - pc_dimm_memory_unplug(dev, &ms->hotplug_memory, mr); - goto out; - } - - spapr_add_lmbs(dev, addr, size, node, &error_abort); - -out: - error_propagate(errp, local_err); -} - -static void spapr_machine_device_plug(HotplugHandler *hotplug_dev, - DeviceState *dev, Error **errp) -{ - sPAPRMachineClass *smc = SPAPR_MACHINE_GET_CLASS(qdev_get_machine()); - - if (object_dynamic_cast(OBJECT(dev), TYPE_PC_DIMM)) { - int node; - - if (!smc->dr_lmb_enabled) { - error_setg(errp, "Memory hotplug not supported for this machine"); - return; - } - node = object_property_get_int(OBJECT(dev), PC_DIMM_NODE_PROP, errp); - if (*errp) { - return; - } - if (node < 0 || node >= MAX_NODES) { - error_setg(errp, "Invaild node %d", node); - return; - } - - /* - * Currently PowerPC kernel doesn't allow hot-adding memory to - * memory-less node, but instead will silently add the memory - * to the first node that has some memory. This causes two - * unexpected behaviours for the user. - * - * - Memory gets hotplugged to a different node than what the user - * specified. - * - Since pc-dimm subsystem in QEMU still thinks that memory belongs - * to memory-less node, a reboot will set things accordingly - * and the previously hotplugged memory now ends in the right node. - * This appears as if some memory moved from one node to another. - * - * So until kernel starts supporting memory hotplug to memory-less - * nodes, just prevent such attempts upfront in QEMU. - */ - if (nb_numa_nodes && !numa_info[node].node_mem) { - error_setg(errp, "Can't hotplug memory to memory-less node %d", - node); - return; - } - - spapr_memory_plug(hotplug_dev, dev, node, errp); - } -} - -static void spapr_machine_device_unplug(HotplugHandler *hotplug_dev, - DeviceState *dev, Error **errp) -{ - if (object_dynamic_cast(OBJECT(dev), TYPE_PC_DIMM)) { - error_setg(errp, "Memory hot unplug not supported by sPAPR"); - } -} - -static HotplugHandler *spapr_get_hotpug_handler(MachineState *machine, - DeviceState *dev) -{ - if (object_dynamic_cast(OBJECT(dev), TYPE_PC_DIMM)) { - return HOTPLUG_HANDLER(machine); - } - return NULL; -} - -static unsigned spapr_cpu_index_to_socket_id(unsigned cpu_index) -{ - /* Allocate to NUMA nodes on a "socket" basis (not that concept of - * socket means much for the paravirtualized PAPR platform) */ - return cpu_index / smp_threads / smp_cores; -} - -static void spapr_machine_class_init(ObjectClass *oc, void *data) -{ - MachineClass *mc = MACHINE_CLASS(oc); - sPAPRMachineClass *smc = SPAPR_MACHINE_CLASS(oc); - FWPathProviderClass *fwc = FW_PATH_PROVIDER_CLASS(oc); - NMIClass *nc = NMI_CLASS(oc); - HotplugHandlerClass *hc = HOTPLUG_HANDLER_CLASS(oc); - - mc->desc = "pSeries Logical Partition (PAPR compliant)"; - - /* - * We set up the default / latest behaviour here. The class_init - * functions for the specific versioned machine types can override - * these details for backwards compatibility - */ - mc->init = ppc_spapr_init; - mc->reset = ppc_spapr_reset; - mc->block_default_type = IF_SCSI; - mc->max_cpus = MAX_CPUMASK_BITS; - mc->no_parallel = 1; - mc->default_boot_order = ""; - mc->default_ram_size = 512 * M_BYTE; - mc->kvm_type = spapr_kvm_type; - mc->has_dynamic_sysbus = true; - mc->pci_allow_0_address = true; - mc->get_hotplug_handler = spapr_get_hotpug_handler; - hc->plug = spapr_machine_device_plug; - hc->unplug = spapr_machine_device_unplug; - mc->cpu_index_to_socket_id = spapr_cpu_index_to_socket_id; - - smc->dr_lmb_enabled = true; - fwc->get_dev_path = spapr_get_fw_dev_path; - nc->nmi_monitor_handler = spapr_nmi; -} - -static const TypeInfo spapr_machine_info = { - .name = TYPE_SPAPR_MACHINE, - .parent = TYPE_MACHINE, - .abstract = true, - .instance_size = sizeof(sPAPRMachineState), - .instance_init = spapr_machine_initfn, - .instance_finalize = spapr_machine_finalizefn, - .class_size = sizeof(sPAPRMachineClass), - .class_init = spapr_machine_class_init, - .interfaces = (InterfaceInfo[]) { - { TYPE_FW_PATH_PROVIDER }, - { TYPE_NMI }, - { TYPE_HOTPLUG_HANDLER }, - { } - }, -}; - -#define DEFINE_SPAPR_MACHINE(suffix, verstr, latest) \ - static void spapr_machine_##suffix##_class_init(ObjectClass *oc, \ - void *data) \ - { \ - MachineClass *mc = MACHINE_CLASS(oc); \ - spapr_machine_##suffix##_class_options(mc); \ - if (latest) { \ - mc->alias = "pseries"; \ - mc->is_default = 1; \ - } \ - } \ - static void spapr_machine_##suffix##_instance_init(Object *obj) \ - { \ - MachineState *machine = MACHINE(obj); \ - spapr_machine_##suffix##_instance_options(machine); \ - } \ - static const TypeInfo spapr_machine_##suffix##_info = { \ - .name = MACHINE_TYPE_NAME("pseries-" verstr), \ - .parent = TYPE_SPAPR_MACHINE, \ - .class_init = spapr_machine_##suffix##_class_init, \ - .instance_init = spapr_machine_##suffix##_instance_init, \ - }; \ - static void spapr_machine_register_##suffix(void) \ - { \ - type_register(&spapr_machine_##suffix##_info); \ - } \ - type_init(spapr_machine_register_##suffix) - -/* - * pseries-2.6 - */ -static void spapr_machine_2_6_instance_options(MachineState *machine) -{ -} - -static void spapr_machine_2_6_class_options(MachineClass *mc) -{ - /* Defaults for the latest behaviour inherited from the base class */ -} - -DEFINE_SPAPR_MACHINE(2_6, "2.6", true); - -/* - * pseries-2.5 - */ -#define SPAPR_COMPAT_2_5 \ - HW_COMPAT_2_5 \ - { \ - .driver = "spapr-vlan", \ - .property = "use-rx-buffer-pools", \ - .value = "off", \ - }, - -static void spapr_machine_2_5_instance_options(MachineState *machine) -{ -} - -static void spapr_machine_2_5_class_options(MachineClass *mc) -{ - sPAPRMachineClass *smc = SPAPR_MACHINE_CLASS(mc); - - spapr_machine_2_6_class_options(mc); - smc->use_ohci_by_default = true; - SET_MACHINE_COMPAT(mc, SPAPR_COMPAT_2_5); -} - -DEFINE_SPAPR_MACHINE(2_5, "2.5", false); - -/* - * pseries-2.4 - */ -#define SPAPR_COMPAT_2_4 \ - SPAPR_COMPAT_2_5 \ - HW_COMPAT_2_4 - -static void spapr_machine_2_4_instance_options(MachineState *machine) -{ - spapr_machine_2_5_instance_options(machine); -} - -static void spapr_machine_2_4_class_options(MachineClass *mc) -{ - sPAPRMachineClass *smc = SPAPR_MACHINE_CLASS(mc); - - spapr_machine_2_5_class_options(mc); - smc->dr_lmb_enabled = false; - SET_MACHINE_COMPAT(mc, SPAPR_COMPAT_2_4); -} - -DEFINE_SPAPR_MACHINE(2_4, "2.4", false); - -/* - * pseries-2.3 - */ -#define SPAPR_COMPAT_2_3 \ - SPAPR_COMPAT_2_4 \ - HW_COMPAT_2_3 \ - {\ - .driver = "spapr-pci-host-bridge",\ - .property = "dynamic-reconfiguration",\ - .value = "off",\ - }, - -static void spapr_machine_2_3_instance_options(MachineState *machine) -{ - spapr_machine_2_4_instance_options(machine); - savevm_skip_section_footers(); - global_state_set_optional(); - savevm_skip_configuration(); -} - -static void spapr_machine_2_3_class_options(MachineClass *mc) -{ - spapr_machine_2_4_class_options(mc); - SET_MACHINE_COMPAT(mc, SPAPR_COMPAT_2_3); -} -DEFINE_SPAPR_MACHINE(2_3, "2.3", false); - -/* - * pseries-2.2 - */ - -#define SPAPR_COMPAT_2_2 \ - SPAPR_COMPAT_2_3 \ - HW_COMPAT_2_2 \ - {\ - .driver = TYPE_SPAPR_PCI_HOST_BRIDGE,\ - .property = "mem_win_size",\ - .value = "0x20000000",\ - }, - -static void spapr_machine_2_2_instance_options(MachineState *machine) -{ - spapr_machine_2_3_instance_options(machine); - machine->suppress_vmdesc = true; -} - -static void spapr_machine_2_2_class_options(MachineClass *mc) -{ - spapr_machine_2_3_class_options(mc); - SET_MACHINE_COMPAT(mc, SPAPR_COMPAT_2_2); -} -DEFINE_SPAPR_MACHINE(2_2, "2.2", false); - -/* - * pseries-2.1 - */ -#define SPAPR_COMPAT_2_1 \ - SPAPR_COMPAT_2_2 \ - HW_COMPAT_2_1 - -static void spapr_machine_2_1_instance_options(MachineState *machine) -{ - spapr_machine_2_2_instance_options(machine); -} - -static void spapr_machine_2_1_class_options(MachineClass *mc) -{ - spapr_machine_2_2_class_options(mc); - SET_MACHINE_COMPAT(mc, SPAPR_COMPAT_2_1); -} -DEFINE_SPAPR_MACHINE(2_1, "2.1", false); - -static void spapr_machine_register_types(void) -{ - type_register_static(&spapr_machine_info); -} - -type_init(spapr_machine_register_types) |