diff options
Diffstat (limited to 'qemu/hw/s390x/s390-pci-inst.c')
| -rw-r--r-- | qemu/hw/s390x/s390-pci-inst.c | 846 |
1 files changed, 0 insertions, 846 deletions
diff --git a/qemu/hw/s390x/s390-pci-inst.c b/qemu/hw/s390x/s390-pci-inst.c deleted file mode 100644 index b28e7d14f..000000000 --- a/qemu/hw/s390x/s390-pci-inst.c +++ /dev/null @@ -1,846 +0,0 @@ -/* - * 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 "qemu/osdep.h" -#include "qemu-common.h" -#include "cpu.h" -#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, - pbdev->configured << 31); - 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; - } - - if (s390_cpu_virt_mem_read(cpu, env->regs[r2], r2, buffer, sizeof(*reqh))) { - return 0; - } - 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; - } - - if (s390_cpu_virt_mem_read(cpu, env->regs[r2], r2, buffer, - req_len + sizeof(*resh))) { - return 0; - } - 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; - } - - if (s390_cpu_virt_mem_read(cpu, env->regs[r2], r2, buffer, - req_len + res_len)) { - return 0; - } - - 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 | FH_ENABLED; - 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 & ~FH_ENABLED; - 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: - if (s390_cpu_virt_mem_write(cpu, env->regs[r2], r2, buffer, - req_len + res_len)) { - return 0; - } - 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 || !(pbdev->fh & FH_ENABLED)) { - 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; - memory_region_dispatch_read(mr, offset, &data, len, - MEMTXATTRS_UNSPECIFIED); - } 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 || !(pbdev->fh & FH_ENABLED)) { - 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; - } - - memory_region_dispatch_write(mr, offset, data, len, - MEMTXATTRS_UNSPECIFIED); - } 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; - hwaddr start, end; - 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; - start = env->regs[r2]; - end = start + env->regs[r2 + 1]; - - pbdev = s390_pci_find_dev_by_fh(fh); - if (!pbdev || !(pbdev->fh & FH_ENABLED)) { - DPRINTF("rpcit no pci dev\n"); - setcc(cpu, ZPCI_PCI_LS_INVAL_HANDLE); - goto out; - } - - mr = &pbdev->iommu_mr; - while (start < end) { - entry = mr->iommu_ops->translate(mr, start, 0); - - if (!entry.translated_addr) { - setcc(cpu, ZPCI_PCI_LS_ERR); - goto out; - } - - memory_region_notify_iommu(mr, entry); - start += entry.addr_mask + 1; - } - - setcc(cpu, ZPCI_PCI_LS_OK); -out: - return 0; -} - -int pcistb_service_call(S390CPU *cpu, uint8_t r1, uint8_t r3, uint64_t gaddr, - uint8_t ar) -{ - CPUS390XState *env = &cpu->env; - S390PCIBusDevice *pbdev; - MemoryRegion *mr; - int i; - uint32_t fh; - uint8_t pcias; - uint8_t len; - uint8_t buffer[128]; - - 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 || !(pbdev->fh & FH_ENABLED)) { - 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; - } - - if (s390_cpu_virt_mem_read(cpu, gaddr, ar, buffer, len)) { - return 0; - } - - for (i = 0; i < len / 8; i++) { - memory_region_dispatch_write(mr, env->regs[r3] + i * 8, - ldq_p(buffer + i * 8), 8, - MEMTXATTRS_UNSPECIFIED); - } - - setcc(cpu, ZPCI_PCI_LS_OK); - return 0; -} - -static int reg_irqs(CPUS390XState *env, S390PCIBusDevice *pbdev, ZpciFib fib) -{ - int ret, len; - - 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); - - pbdev->summary_ind = get_indicator(ldq_p(&fib.aisb), sizeof(uint64_t)); - len = BITS_TO_LONGS(FIB_DATA_NOI(ldl_p(&fib.data))) * sizeof(unsigned long); - pbdev->indicator = get_indicator(ldq_p(&fib.aibv), len); - - map_indicator(&pbdev->routes.adapter, pbdev->summary_ind); - map_indicator(&pbdev->routes.adapter, pbdev->indicator); - - 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) -{ - release_indicator(&pbdev->routes.adapter, pbdev->summary_ind); - release_indicator(&pbdev->routes.adapter, pbdev->indicator); - - pbdev->summary_ind = NULL; - pbdev->indicator = NULL; - 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; - - s390_pcihost_iommu_configure(pbdev, true); - - return 0; -} - -static void dereg_ioat(S390PCIBusDevice *pbdev) -{ - pbdev->pba = 0; - pbdev->pal = 0; - pbdev->g_iota = 0; - - s390_pcihost_iommu_configure(pbdev, false); -} - -int mpcifc_service_call(S390CPU *cpu, uint8_t r1, uint64_t fiba, uint8_t ar) -{ - 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 || !(pbdev->fh & FH_ENABLED)) { - DPRINTF("mpcifc no pci dev fh 0x%x\n", fh); - setcc(cpu, ZPCI_PCI_LS_INVAL_HANDLE); - return 0; - } - - if (s390_cpu_virt_mem_read(cpu, fiba, ar, (uint8_t *)&fib, sizeof(fib))) { - return 0; - } - - 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, uint8_t ar) -{ - 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 = ((uint32_t)pbdev->isc << 28) | ((uint32_t)pbdev->noi << 16) | - ((uint32_t)pbdev->routes.adapter.ind_offset << 8) | - ((uint32_t)pbdev->sum << 7) | pbdev->routes.adapter.summary_offset; - stl_p(&fib.data, data); - - if (pbdev->fh & FH_ENABLED) { - fib.fc |= 0x80; - } - - if (pbdev->error_state) { - fib.fc |= 0x40; - } - - if (pbdev->lgstg_blocked) { - fib.fc |= 0x20; - } - - if (pbdev->g_iota) { - fib.fc |= 0x10; - } - - if (s390_cpu_virt_mem_write(cpu, fiba, ar, (uint8_t *)&fib, sizeof(fib))) { - return 0; - } - - setcc(cpu, cc); - return 0; -} |