diff options
Diffstat (limited to 'hw/s390x/s390-pci-inst.c')
| -rw-r--r-- | hw/s390x/s390-pci-inst.c | 811 |
1 files changed, 811 insertions, 0 deletions
diff --git a/hw/s390x/s390-pci-inst.c b/hw/s390x/s390-pci-inst.c new file mode 100644 index 0000000000..5ea13e5d79 --- /dev/null +++ b/hw/s390x/s390-pci-inst.c @@ -0,0 +1,811 @@ +/* + * s390 PCI instructions + * + * Copyright 2014 IBM Corp. + * Author(s): Frank Blaschka <frank.blaschka@de.ibm.com> + * Hong Bo Li <lihbbj@cn.ibm.com> + * Yi Min Zhao <zyimin@cn.ibm.com> + * + * This work is licensed under the terms of the GNU GPL, version 2 or (at + * your option) any later version. See the COPYING file in the top-level + * directory. + */ + +#include "s390-pci-inst.h" +#include "s390-pci-bus.h" +#include <exec/memory-internal.h> +#include <qemu/error-report.h> + +/* #define DEBUG_S390PCI_INST */ +#ifdef DEBUG_S390PCI_INST +#define DPRINTF(fmt, ...) \ + do { fprintf(stderr, "s390pci-inst: " fmt, ## __VA_ARGS__); } while (0) +#else +#define DPRINTF(fmt, ...) \ + do { } while (0) +#endif + +static void s390_set_status_code(CPUS390XState *env, + uint8_t r, uint64_t status_code) +{ + env->regs[r] &= ~0xff000000ULL; + env->regs[r] |= (status_code & 0xff) << 24; +} + +static int list_pci(ClpReqRspListPci *rrb, uint8_t *cc) +{ + S390PCIBusDevice *pbdev; + uint32_t res_code, initial_l2, g_l2, finish; + int rc, idx; + uint64_t resume_token; + + rc = 0; + if (lduw_p(&rrb->request.hdr.len) != 32) { + res_code = CLP_RC_LEN; + rc = -EINVAL; + goto out; + } + + if ((ldl_p(&rrb->request.fmt) & CLP_MASK_FMT) != 0) { + res_code = CLP_RC_FMT; + rc = -EINVAL; + goto out; + } + + if ((ldl_p(&rrb->request.fmt) & ~CLP_MASK_FMT) != 0 || + ldq_p(&rrb->request.reserved1) != 0 || + ldq_p(&rrb->request.reserved2) != 0) { + res_code = CLP_RC_RESNOT0; + rc = -EINVAL; + goto out; + } + + resume_token = ldq_p(&rrb->request.resume_token); + + if (resume_token) { + pbdev = s390_pci_find_dev_by_idx(resume_token); + if (!pbdev) { + res_code = CLP_RC_LISTPCI_BADRT; + rc = -EINVAL; + goto out; + } + } + + if (lduw_p(&rrb->response.hdr.len) < 48) { + res_code = CLP_RC_8K; + rc = -EINVAL; + goto out; + } + + initial_l2 = lduw_p(&rrb->response.hdr.len); + if ((initial_l2 - LIST_PCI_HDR_LEN) % sizeof(ClpFhListEntry) + != 0) { + res_code = CLP_RC_LEN; + rc = -EINVAL; + *cc = 3; + goto out; + } + + stl_p(&rrb->response.fmt, 0); + stq_p(&rrb->response.reserved1, 0); + stq_p(&rrb->response.reserved2, 0); + stl_p(&rrb->response.mdd, FH_VIRT); + stw_p(&rrb->response.max_fn, PCI_MAX_FUNCTIONS); + rrb->response.entry_size = sizeof(ClpFhListEntry); + finish = 0; + idx = resume_token; + g_l2 = LIST_PCI_HDR_LEN; + do { + pbdev = s390_pci_find_dev_by_idx(idx); + if (!pbdev) { + finish = 1; + break; + } + stw_p(&rrb->response.fh_list[idx - resume_token].device_id, + pci_get_word(pbdev->pdev->config + PCI_DEVICE_ID)); + stw_p(&rrb->response.fh_list[idx - resume_token].vendor_id, + pci_get_word(pbdev->pdev->config + PCI_VENDOR_ID)); + stl_p(&rrb->response.fh_list[idx - resume_token].config, 0x80000000); + stl_p(&rrb->response.fh_list[idx - resume_token].fid, pbdev->fid); + stl_p(&rrb->response.fh_list[idx - resume_token].fh, pbdev->fh); + + g_l2 += sizeof(ClpFhListEntry); + /* Add endian check for DPRINTF? */ + DPRINTF("g_l2 %d vendor id 0x%x device id 0x%x fid 0x%x fh 0x%x\n", + g_l2, + lduw_p(&rrb->response.fh_list[idx - resume_token].vendor_id), + lduw_p(&rrb->response.fh_list[idx - resume_token].device_id), + ldl_p(&rrb->response.fh_list[idx - resume_token].fid), + ldl_p(&rrb->response.fh_list[idx - resume_token].fh)); + idx++; + } while (g_l2 < initial_l2); + + if (finish == 1) { + resume_token = 0; + } else { + resume_token = idx; + } + stq_p(&rrb->response.resume_token, resume_token); + stw_p(&rrb->response.hdr.len, g_l2); + stw_p(&rrb->response.hdr.rsp, CLP_RC_OK); +out: + if (rc) { + DPRINTF("list pci failed rc 0x%x\n", rc); + stw_p(&rrb->response.hdr.rsp, res_code); + } + return rc; +} + +int clp_service_call(S390CPU *cpu, uint8_t r2) +{ + ClpReqHdr *reqh; + ClpRspHdr *resh; + S390PCIBusDevice *pbdev; + uint32_t req_len; + uint32_t res_len; + uint8_t buffer[4096 * 2]; + uint8_t cc = 0; + CPUS390XState *env = &cpu->env; + int i; + + cpu_synchronize_state(CPU(cpu)); + + if (env->psw.mask & PSW_MASK_PSTATE) { + program_interrupt(env, PGM_PRIVILEGED, 4); + return 0; + } + + cpu_physical_memory_read(env->regs[r2], buffer, sizeof(*reqh)); + reqh = (ClpReqHdr *)buffer; + req_len = lduw_p(&reqh->len); + if (req_len < 16 || req_len > 8184 || (req_len % 8 != 0)) { + program_interrupt(env, PGM_OPERAND, 4); + return 0; + } + + cpu_physical_memory_read(env->regs[r2], buffer, req_len + sizeof(*resh)); + resh = (ClpRspHdr *)(buffer + req_len); + res_len = lduw_p(&resh->len); + if (res_len < 8 || res_len > 8176 || (res_len % 8 != 0)) { + program_interrupt(env, PGM_OPERAND, 4); + return 0; + } + if ((req_len + res_len) > 8192) { + program_interrupt(env, PGM_OPERAND, 4); + return 0; + } + + cpu_physical_memory_read(env->regs[r2], buffer, req_len + res_len); + + if (req_len != 32) { + stw_p(&resh->rsp, CLP_RC_LEN); + goto out; + } + + switch (lduw_p(&reqh->cmd)) { + case CLP_LIST_PCI: { + ClpReqRspListPci *rrb = (ClpReqRspListPci *)buffer; + list_pci(rrb, &cc); + break; + } + case CLP_SET_PCI_FN: { + ClpReqSetPci *reqsetpci = (ClpReqSetPci *)reqh; + ClpRspSetPci *ressetpci = (ClpRspSetPci *)resh; + + pbdev = s390_pci_find_dev_by_fh(ldl_p(&reqsetpci->fh)); + if (!pbdev) { + stw_p(&ressetpci->hdr.rsp, CLP_RC_SETPCIFN_FH); + goto out; + } + + switch (reqsetpci->oc) { + case CLP_SET_ENABLE_PCI_FN: + pbdev->fh = pbdev->fh | 1 << ENABLE_BIT_OFFSET; + stl_p(&ressetpci->fh, pbdev->fh); + stw_p(&ressetpci->hdr.rsp, CLP_RC_OK); + break; + case CLP_SET_DISABLE_PCI_FN: + pbdev->fh = pbdev->fh & ~(1 << ENABLE_BIT_OFFSET); + pbdev->error_state = false; + pbdev->lgstg_blocked = false; + stl_p(&ressetpci->fh, pbdev->fh); + stw_p(&ressetpci->hdr.rsp, CLP_RC_OK); + break; + default: + DPRINTF("unknown set pci command\n"); + stw_p(&ressetpci->hdr.rsp, CLP_RC_SETPCIFN_FHOP); + break; + } + break; + } + case CLP_QUERY_PCI_FN: { + ClpReqQueryPci *reqquery = (ClpReqQueryPci *)reqh; + ClpRspQueryPci *resquery = (ClpRspQueryPci *)resh; + + pbdev = s390_pci_find_dev_by_fh(ldl_p(&reqquery->fh)); + if (!pbdev) { + DPRINTF("query pci no pci dev\n"); + stw_p(&resquery->hdr.rsp, CLP_RC_SETPCIFN_FH); + goto out; + } + + for (i = 0; i < PCI_BAR_COUNT; i++) { + uint32_t data = pci_get_long(pbdev->pdev->config + + PCI_BASE_ADDRESS_0 + (i * 4)); + + stl_p(&resquery->bar[i], data); + resquery->bar_size[i] = pbdev->pdev->io_regions[i].size ? + ctz64(pbdev->pdev->io_regions[i].size) : 0; + DPRINTF("bar %d addr 0x%x size 0x%" PRIx64 "barsize 0x%x\n", i, + ldl_p(&resquery->bar[i]), + pbdev->pdev->io_regions[i].size, + resquery->bar_size[i]); + } + + stq_p(&resquery->sdma, ZPCI_SDMA_ADDR); + stq_p(&resquery->edma, ZPCI_EDMA_ADDR); + stw_p(&resquery->pchid, 0); + stw_p(&resquery->ug, 1); + stl_p(&resquery->uid, pbdev->fid); + stw_p(&resquery->hdr.rsp, CLP_RC_OK); + break; + } + case CLP_QUERY_PCI_FNGRP: { + ClpRspQueryPciGrp *resgrp = (ClpRspQueryPciGrp *)resh; + resgrp->fr = 1; + stq_p(&resgrp->dasm, 0); + stq_p(&resgrp->msia, ZPCI_MSI_ADDR); + stw_p(&resgrp->mui, 0); + stw_p(&resgrp->i, 128); + resgrp->version = 0; + + stw_p(&resgrp->hdr.rsp, CLP_RC_OK); + break; + } + default: + DPRINTF("unknown clp command\n"); + stw_p(&resh->rsp, CLP_RC_CMD); + break; + } + +out: + cpu_physical_memory_write(env->regs[r2], buffer, req_len + res_len); + setcc(cpu, cc); + return 0; +} + +int pcilg_service_call(S390CPU *cpu, uint8_t r1, uint8_t r2) +{ + CPUS390XState *env = &cpu->env; + S390PCIBusDevice *pbdev; + uint64_t offset; + uint64_t data; + uint8_t len; + uint32_t fh; + uint8_t pcias; + + cpu_synchronize_state(CPU(cpu)); + + if (env->psw.mask & PSW_MASK_PSTATE) { + program_interrupt(env, PGM_PRIVILEGED, 4); + return 0; + } + + if (r2 & 0x1) { + program_interrupt(env, PGM_SPECIFICATION, 4); + return 0; + } + + fh = env->regs[r2] >> 32; + pcias = (env->regs[r2] >> 16) & 0xf; + len = env->regs[r2] & 0xf; + offset = env->regs[r2 + 1]; + + pbdev = s390_pci_find_dev_by_fh(fh); + if (!pbdev) { + DPRINTF("pcilg no pci dev\n"); + setcc(cpu, ZPCI_PCI_LS_INVAL_HANDLE); + return 0; + } + + if (pbdev->lgstg_blocked) { + setcc(cpu, ZPCI_PCI_LS_ERR); + s390_set_status_code(env, r2, ZPCI_PCI_ST_BLOCKED); + return 0; + } + + if (pcias < 6) { + if ((8 - (offset & 0x7)) < len) { + program_interrupt(env, PGM_OPERAND, 4); + return 0; + } + MemoryRegion *mr = pbdev->pdev->io_regions[pcias].memory; + io_mem_read(mr, offset, &data, len); + } else if (pcias == 15) { + if ((4 - (offset & 0x3)) < len) { + program_interrupt(env, PGM_OPERAND, 4); + return 0; + } + data = pci_host_config_read_common( + pbdev->pdev, offset, pci_config_size(pbdev->pdev), len); + + switch (len) { + case 1: + break; + case 2: + data = bswap16(data); + break; + case 4: + data = bswap32(data); + break; + case 8: + data = bswap64(data); + break; + default: + program_interrupt(env, PGM_OPERAND, 4); + return 0; + } + } else { + DPRINTF("invalid space\n"); + setcc(cpu, ZPCI_PCI_LS_ERR); + s390_set_status_code(env, r2, ZPCI_PCI_ST_INVAL_AS); + return 0; + } + + env->regs[r1] = data; + setcc(cpu, ZPCI_PCI_LS_OK); + return 0; +} + +static void update_msix_table_msg_data(S390PCIBusDevice *pbdev, uint64_t offset, + uint64_t *data, uint8_t len) +{ + uint32_t val; + uint8_t *msg_data; + + if (offset % PCI_MSIX_ENTRY_SIZE != 8) { + return; + } + + if (len != 4) { + DPRINTF("access msix table msg data but len is %d\n", len); + return; + } + + msg_data = (uint8_t *)data - offset % PCI_MSIX_ENTRY_SIZE + + PCI_MSIX_ENTRY_VECTOR_CTRL; + val = pci_get_long(msg_data) | (pbdev->fid << ZPCI_MSI_VEC_BITS); + pci_set_long(msg_data, val); + DPRINTF("update msix msg_data to 0x%" PRIx64 "\n", *data); +} + +static int trap_msix(S390PCIBusDevice *pbdev, uint64_t offset, uint8_t pcias) +{ + if (pbdev->msix.available && pbdev->msix.table_bar == pcias && + offset >= pbdev->msix.table_offset && + offset <= pbdev->msix.table_offset + + (pbdev->msix.entries - 1) * PCI_MSIX_ENTRY_SIZE) { + return 1; + } else { + return 0; + } +} + +int pcistg_service_call(S390CPU *cpu, uint8_t r1, uint8_t r2) +{ + CPUS390XState *env = &cpu->env; + uint64_t offset, data; + S390PCIBusDevice *pbdev; + uint8_t len; + uint32_t fh; + uint8_t pcias; + + cpu_synchronize_state(CPU(cpu)); + + if (env->psw.mask & PSW_MASK_PSTATE) { + program_interrupt(env, PGM_PRIVILEGED, 4); + return 0; + } + + if (r2 & 0x1) { + program_interrupt(env, PGM_SPECIFICATION, 4); + return 0; + } + + fh = env->regs[r2] >> 32; + pcias = (env->regs[r2] >> 16) & 0xf; + len = env->regs[r2] & 0xf; + offset = env->regs[r2 + 1]; + + pbdev = s390_pci_find_dev_by_fh(fh); + if (!pbdev) { + DPRINTF("pcistg no pci dev\n"); + setcc(cpu, ZPCI_PCI_LS_INVAL_HANDLE); + return 0; + } + + if (pbdev->lgstg_blocked) { + setcc(cpu, ZPCI_PCI_LS_ERR); + s390_set_status_code(env, r2, ZPCI_PCI_ST_BLOCKED); + return 0; + } + + data = env->regs[r1]; + if (pcias < 6) { + if ((8 - (offset & 0x7)) < len) { + program_interrupt(env, PGM_OPERAND, 4); + return 0; + } + MemoryRegion *mr; + if (trap_msix(pbdev, offset, pcias)) { + offset = offset - pbdev->msix.table_offset; + mr = &pbdev->pdev->msix_table_mmio; + update_msix_table_msg_data(pbdev, offset, &data, len); + } else { + mr = pbdev->pdev->io_regions[pcias].memory; + } + + io_mem_write(mr, offset, data, len); + } else if (pcias == 15) { + if ((4 - (offset & 0x3)) < len) { + program_interrupt(env, PGM_OPERAND, 4); + return 0; + } + switch (len) { + case 1: + break; + case 2: + data = bswap16(data); + break; + case 4: + data = bswap32(data); + break; + case 8: + data = bswap64(data); + break; + default: + program_interrupt(env, PGM_OPERAND, 4); + return 0; + } + + pci_host_config_write_common(pbdev->pdev, offset, + pci_config_size(pbdev->pdev), + data, len); + } else { + DPRINTF("pcistg invalid space\n"); + setcc(cpu, ZPCI_PCI_LS_ERR); + s390_set_status_code(env, r2, ZPCI_PCI_ST_INVAL_AS); + return 0; + } + + setcc(cpu, ZPCI_PCI_LS_OK); + return 0; +} + +int rpcit_service_call(S390CPU *cpu, uint8_t r1, uint8_t r2) +{ + CPUS390XState *env = &cpu->env; + uint32_t fh; + S390PCIBusDevice *pbdev; + ram_addr_t size; + IOMMUTLBEntry entry; + MemoryRegion *mr; + + cpu_synchronize_state(CPU(cpu)); + + if (env->psw.mask & PSW_MASK_PSTATE) { + program_interrupt(env, PGM_PRIVILEGED, 4); + goto out; + } + + if (r2 & 0x1) { + program_interrupt(env, PGM_SPECIFICATION, 4); + goto out; + } + + fh = env->regs[r1] >> 32; + size = env->regs[r2 + 1]; + + pbdev = s390_pci_find_dev_by_fh(fh); + + if (!pbdev) { + DPRINTF("rpcit no pci dev\n"); + setcc(cpu, ZPCI_PCI_LS_INVAL_HANDLE); + goto out; + } + + mr = pci_device_iommu_address_space(pbdev->pdev)->root; + entry = mr->iommu_ops->translate(mr, env->regs[r2], 0); + + if (!entry.translated_addr) { + setcc(cpu, ZPCI_PCI_LS_ERR); + goto out; + } + + entry.addr_mask = size - 1; + memory_region_notify_iommu(mr, entry); + setcc(cpu, ZPCI_PCI_LS_OK); +out: + return 0; +} + +int pcistb_service_call(S390CPU *cpu, uint8_t r1, uint8_t r3, uint64_t gaddr) +{ + CPUS390XState *env = &cpu->env; + S390PCIBusDevice *pbdev; + MemoryRegion *mr; + int i; + uint64_t val; + uint32_t fh; + uint8_t pcias; + uint8_t len; + + if (env->psw.mask & PSW_MASK_PSTATE) { + program_interrupt(env, PGM_PRIVILEGED, 6); + return 0; + } + + fh = env->regs[r1] >> 32; + pcias = (env->regs[r1] >> 16) & 0xf; + len = env->regs[r1] & 0xff; + + if (pcias > 5) { + DPRINTF("pcistb invalid space\n"); + setcc(cpu, ZPCI_PCI_LS_ERR); + s390_set_status_code(env, r1, ZPCI_PCI_ST_INVAL_AS); + return 0; + } + + switch (len) { + case 16: + case 32: + case 64: + case 128: + break; + default: + program_interrupt(env, PGM_SPECIFICATION, 6); + return 0; + } + + pbdev = s390_pci_find_dev_by_fh(fh); + if (!pbdev) { + DPRINTF("pcistb no pci dev fh 0x%x\n", fh); + setcc(cpu, ZPCI_PCI_LS_INVAL_HANDLE); + return 0; + } + + if (pbdev->lgstg_blocked) { + setcc(cpu, ZPCI_PCI_LS_ERR); + s390_set_status_code(env, r1, ZPCI_PCI_ST_BLOCKED); + return 0; + } + + mr = pbdev->pdev->io_regions[pcias].memory; + if (!memory_region_access_valid(mr, env->regs[r3], len, true)) { + program_interrupt(env, PGM_ADDRESSING, 6); + return 0; + } + + for (i = 0; i < len / 8; i++) { + val = ldq_phys(&address_space_memory, gaddr + i * 8); + io_mem_write(mr, env->regs[r3] + i * 8, val, 8); + } + + setcc(cpu, ZPCI_PCI_LS_OK); + return 0; +} + +static int reg_irqs(CPUS390XState *env, S390PCIBusDevice *pbdev, ZpciFib fib) +{ + int ret; + S390FLICState *fs = s390_get_flic(); + S390FLICStateClass *fsc = S390_FLIC_COMMON_GET_CLASS(fs); + + ret = css_register_io_adapter(S390_PCIPT_ADAPTER, + FIB_DATA_ISC(ldl_p(&fib.data)), true, false, + &pbdev->routes.adapter.adapter_id); + assert(ret == 0); + + fsc->io_adapter_map(fs, pbdev->routes.adapter.adapter_id, + ldq_p(&fib.aisb), true); + fsc->io_adapter_map(fs, pbdev->routes.adapter.adapter_id, + ldq_p(&fib.aibv), true); + + pbdev->routes.adapter.summary_addr = ldq_p(&fib.aisb); + pbdev->routes.adapter.summary_offset = FIB_DATA_AISBO(ldl_p(&fib.data)); + pbdev->routes.adapter.ind_addr = ldq_p(&fib.aibv); + pbdev->routes.adapter.ind_offset = FIB_DATA_AIBVO(ldl_p(&fib.data)); + pbdev->isc = FIB_DATA_ISC(ldl_p(&fib.data)); + pbdev->noi = FIB_DATA_NOI(ldl_p(&fib.data)); + pbdev->sum = FIB_DATA_SUM(ldl_p(&fib.data)); + + DPRINTF("reg_irqs adapter id %d\n", pbdev->routes.adapter.adapter_id); + return 0; +} + +static int dereg_irqs(S390PCIBusDevice *pbdev) +{ + S390FLICState *fs = s390_get_flic(); + S390FLICStateClass *fsc = S390_FLIC_COMMON_GET_CLASS(fs); + + fsc->io_adapter_map(fs, pbdev->routes.adapter.adapter_id, + pbdev->routes.adapter.ind_addr, false); + + pbdev->routes.adapter.summary_addr = 0; + pbdev->routes.adapter.summary_offset = 0; + pbdev->routes.adapter.ind_addr = 0; + pbdev->routes.adapter.ind_offset = 0; + pbdev->isc = 0; + pbdev->noi = 0; + pbdev->sum = 0; + + DPRINTF("dereg_irqs adapter id %d\n", pbdev->routes.adapter.adapter_id); + return 0; +} + +static int reg_ioat(CPUS390XState *env, S390PCIBusDevice *pbdev, ZpciFib fib) +{ + uint64_t pba = ldq_p(&fib.pba); + uint64_t pal = ldq_p(&fib.pal); + uint64_t g_iota = ldq_p(&fib.iota); + uint8_t dt = (g_iota >> 2) & 0x7; + uint8_t t = (g_iota >> 11) & 0x1; + + if (pba > pal || pba < ZPCI_SDMA_ADDR || pal > ZPCI_EDMA_ADDR) { + program_interrupt(env, PGM_OPERAND, 6); + return -EINVAL; + } + + /* currently we only support designation type 1 with translation */ + if (!(dt == ZPCI_IOTA_RTTO && t)) { + error_report("unsupported ioat dt %d t %d", dt, t); + program_interrupt(env, PGM_OPERAND, 6); + return -EINVAL; + } + + pbdev->pba = pba; + pbdev->pal = pal; + pbdev->g_iota = g_iota; + return 0; +} + +static void dereg_ioat(S390PCIBusDevice *pbdev) +{ + pbdev->pba = 0; + pbdev->pal = 0; + pbdev->g_iota = 0; +} + +int mpcifc_service_call(S390CPU *cpu, uint8_t r1, uint64_t fiba) +{ + CPUS390XState *env = &cpu->env; + uint8_t oc; + uint32_t fh; + ZpciFib fib; + S390PCIBusDevice *pbdev; + uint64_t cc = ZPCI_PCI_LS_OK; + + if (env->psw.mask & PSW_MASK_PSTATE) { + program_interrupt(env, PGM_PRIVILEGED, 6); + return 0; + } + + oc = env->regs[r1] & 0xff; + fh = env->regs[r1] >> 32; + + if (fiba & 0x7) { + program_interrupt(env, PGM_SPECIFICATION, 6); + return 0; + } + + pbdev = s390_pci_find_dev_by_fh(fh); + if (!pbdev) { + DPRINTF("mpcifc no pci dev fh 0x%x\n", fh); + setcc(cpu, ZPCI_PCI_LS_INVAL_HANDLE); + return 0; + } + + cpu_physical_memory_read(fiba, (uint8_t *)&fib, sizeof(fib)); + + switch (oc) { + case ZPCI_MOD_FC_REG_INT: + if (reg_irqs(env, pbdev, fib)) { + cc = ZPCI_PCI_LS_ERR; + } + break; + case ZPCI_MOD_FC_DEREG_INT: + dereg_irqs(pbdev); + break; + case ZPCI_MOD_FC_REG_IOAT: + if (reg_ioat(env, pbdev, fib)) { + cc = ZPCI_PCI_LS_ERR; + } + break; + case ZPCI_MOD_FC_DEREG_IOAT: + dereg_ioat(pbdev); + break; + case ZPCI_MOD_FC_REREG_IOAT: + dereg_ioat(pbdev); + if (reg_ioat(env, pbdev, fib)) { + cc = ZPCI_PCI_LS_ERR; + } + break; + case ZPCI_MOD_FC_RESET_ERROR: + pbdev->error_state = false; + pbdev->lgstg_blocked = false; + break; + case ZPCI_MOD_FC_RESET_BLOCK: + pbdev->lgstg_blocked = false; + break; + case ZPCI_MOD_FC_SET_MEASURE: + pbdev->fmb_addr = ldq_p(&fib.fmb_addr); + break; + default: + program_interrupt(&cpu->env, PGM_OPERAND, 6); + cc = ZPCI_PCI_LS_ERR; + } + + setcc(cpu, cc); + return 0; +} + +int stpcifc_service_call(S390CPU *cpu, uint8_t r1, uint64_t fiba) +{ + CPUS390XState *env = &cpu->env; + uint32_t fh; + ZpciFib fib; + S390PCIBusDevice *pbdev; + uint32_t data; + uint64_t cc = ZPCI_PCI_LS_OK; + + if (env->psw.mask & PSW_MASK_PSTATE) { + program_interrupt(env, PGM_PRIVILEGED, 6); + return 0; + } + + fh = env->regs[r1] >> 32; + + if (fiba & 0x7) { + program_interrupt(env, PGM_SPECIFICATION, 6); + return 0; + } + + pbdev = s390_pci_find_dev_by_fh(fh); + if (!pbdev) { + setcc(cpu, ZPCI_PCI_LS_INVAL_HANDLE); + return 0; + } + + memset(&fib, 0, sizeof(fib)); + stq_p(&fib.pba, pbdev->pba); + stq_p(&fib.pal, pbdev->pal); + stq_p(&fib.iota, pbdev->g_iota); + stq_p(&fib.aibv, pbdev->routes.adapter.ind_addr); + stq_p(&fib.aisb, pbdev->routes.adapter.summary_addr); + stq_p(&fib.fmb_addr, pbdev->fmb_addr); + + data = (pbdev->isc << 28) | (pbdev->noi << 16) | + (pbdev->routes.adapter.ind_offset << 8) | (pbdev->sum << 7) | + pbdev->routes.adapter.summary_offset; + stw_p(&fib.data, data); + + if (pbdev->fh >> ENABLE_BIT_OFFSET) { + fib.fc |= 0x80; + } + + if (pbdev->error_state) { + fib.fc |= 0x40; + } + + if (pbdev->lgstg_blocked) { + fib.fc |= 0x20; + } + + if (pbdev->g_iota) { + fib.fc |= 0x10; + } + + cpu_physical_memory_write(fiba, (uint8_t *)&fib, sizeof(fib)); + setcc(cpu, cc); + return 0; +} |