| /* |
| * I/O instructions for S/390 |
| * |
| * Copyright 2012 IBM Corp. |
| * Author(s): Cornelia Huck <cornelia.huck@de.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 <sys/types.h> |
| |
| #include "cpu.h" |
| #include "ioinst.h" |
| #include "trace.h" |
| |
| int ioinst_disassemble_sch_ident(uint32_t value, int *m, int *cssid, int *ssid, |
| int *schid) |
| { |
| if (!IOINST_SCHID_ONE(value)) { |
| return -EINVAL; |
| } |
| if (!IOINST_SCHID_M(value)) { |
| if (IOINST_SCHID_CSSID(value)) { |
| return -EINVAL; |
| } |
| *cssid = 0; |
| *m = 0; |
| } else { |
| *cssid = IOINST_SCHID_CSSID(value); |
| *m = 1; |
| } |
| *ssid = IOINST_SCHID_SSID(value); |
| *schid = IOINST_SCHID_NR(value); |
| return 0; |
| } |
| |
| int ioinst_handle_xsch(CPUS390XState *env, uint64_t reg1) |
| { |
| int cssid, ssid, schid, m; |
| SubchDev *sch; |
| int ret = -ENODEV; |
| int cc; |
| |
| if (ioinst_disassemble_sch_ident(reg1, &m, &cssid, &ssid, &schid)) { |
| program_interrupt(env, PGM_OPERAND, 2); |
| return -EIO; |
| } |
| trace_ioinst_sch_id("xsch", cssid, ssid, schid); |
| sch = css_find_subch(m, cssid, ssid, schid); |
| if (sch && css_subch_visible(sch)) { |
| ret = css_do_xsch(sch); |
| } |
| switch (ret) { |
| case -ENODEV: |
| cc = 3; |
| break; |
| case -EBUSY: |
| cc = 2; |
| break; |
| case 0: |
| cc = 0; |
| break; |
| default: |
| cc = 1; |
| break; |
| } |
| |
| return cc; |
| } |
| |
| int ioinst_handle_csch(CPUS390XState *env, uint64_t reg1) |
| { |
| int cssid, ssid, schid, m; |
| SubchDev *sch; |
| int ret = -ENODEV; |
| int cc; |
| |
| if (ioinst_disassemble_sch_ident(reg1, &m, &cssid, &ssid, &schid)) { |
| program_interrupt(env, PGM_OPERAND, 2); |
| return -EIO; |
| } |
| trace_ioinst_sch_id("csch", cssid, ssid, schid); |
| sch = css_find_subch(m, cssid, ssid, schid); |
| if (sch && css_subch_visible(sch)) { |
| ret = css_do_csch(sch); |
| } |
| if (ret == -ENODEV) { |
| cc = 3; |
| } else { |
| cc = 0; |
| } |
| return cc; |
| } |
| |
| int ioinst_handle_hsch(CPUS390XState *env, uint64_t reg1) |
| { |
| int cssid, ssid, schid, m; |
| SubchDev *sch; |
| int ret = -ENODEV; |
| int cc; |
| |
| if (ioinst_disassemble_sch_ident(reg1, &m, &cssid, &ssid, &schid)) { |
| program_interrupt(env, PGM_OPERAND, 2); |
| return -EIO; |
| } |
| trace_ioinst_sch_id("hsch", cssid, ssid, schid); |
| sch = css_find_subch(m, cssid, ssid, schid); |
| if (sch && css_subch_visible(sch)) { |
| ret = css_do_hsch(sch); |
| } |
| switch (ret) { |
| case -ENODEV: |
| cc = 3; |
| break; |
| case -EBUSY: |
| cc = 2; |
| break; |
| case 0: |
| cc = 0; |
| break; |
| default: |
| cc = 1; |
| break; |
| } |
| |
| return cc; |
| } |
| |
| static int ioinst_schib_valid(SCHIB *schib) |
| { |
| if ((schib->pmcw.flags & PMCW_FLAGS_MASK_INVALID) || |
| (schib->pmcw.chars & PMCW_CHARS_MASK_INVALID)) { |
| return 0; |
| } |
| /* Disallow extended measurements for now. */ |
| if (schib->pmcw.chars & PMCW_CHARS_MASK_XMWME) { |
| return 0; |
| } |
| return 1; |
| } |
| |
| int ioinst_handle_msch(CPUS390XState *env, uint64_t reg1, uint32_t ipb) |
| { |
| int cssid, ssid, schid, m; |
| SubchDev *sch; |
| SCHIB *schib; |
| uint64_t addr; |
| int ret = -ENODEV; |
| int cc; |
| hwaddr len = sizeof(*schib); |
| |
| if (ioinst_disassemble_sch_ident(reg1, &m, &cssid, &ssid, &schid)) { |
| program_interrupt(env, PGM_OPERAND, 2); |
| return -EIO; |
| } |
| trace_ioinst_sch_id("msch", cssid, ssid, schid); |
| addr = decode_basedisp_s(env, ipb); |
| schib = s390_cpu_physical_memory_map(env, addr, &len, 0); |
| if (!schib || len != sizeof(*schib)) { |
| program_interrupt(env, PGM_SPECIFICATION, 2); |
| cc = -EIO; |
| goto out; |
| } |
| if (!ioinst_schib_valid(schib)) { |
| program_interrupt(env, PGM_OPERAND, 2); |
| cc = -EIO; |
| goto out; |
| } |
| sch = css_find_subch(m, cssid, ssid, schid); |
| if (sch && css_subch_visible(sch)) { |
| ret = css_do_msch(sch, schib); |
| } |
| switch (ret) { |
| case -ENODEV: |
| cc = 3; |
| break; |
| case -EBUSY: |
| cc = 2; |
| break; |
| case 0: |
| cc = 0; |
| break; |
| default: |
| cc = 1; |
| break; |
| } |
| out: |
| s390_cpu_physical_memory_unmap(env, schib, len, 0); |
| return cc; |
| } |
| |
| static void copy_orb_from_guest(ORB *dest, const ORB *src) |
| { |
| dest->intparm = be32_to_cpu(src->intparm); |
| dest->ctrl0 = be16_to_cpu(src->ctrl0); |
| dest->lpm = src->lpm; |
| dest->ctrl1 = src->ctrl1; |
| dest->cpa = be32_to_cpu(src->cpa); |
| } |
| |
| static int ioinst_orb_valid(ORB *orb) |
| { |
| if ((orb->ctrl0 & ORB_CTRL0_MASK_INVALID) || |
| (orb->ctrl1 & ORB_CTRL1_MASK_INVALID)) { |
| return 0; |
| } |
| if ((orb->cpa & HIGH_ORDER_BIT) != 0) { |
| return 0; |
| } |
| return 1; |
| } |
| |
| int ioinst_handle_ssch(CPUS390XState *env, uint64_t reg1, uint32_t ipb) |
| { |
| int cssid, ssid, schid, m; |
| SubchDev *sch; |
| ORB *orig_orb, orb; |
| uint64_t addr; |
| int ret = -ENODEV; |
| int cc; |
| hwaddr len = sizeof(*orig_orb); |
| |
| if (ioinst_disassemble_sch_ident(reg1, &m, &cssid, &ssid, &schid)) { |
| program_interrupt(env, PGM_OPERAND, 2); |
| return -EIO; |
| } |
| trace_ioinst_sch_id("ssch", cssid, ssid, schid); |
| addr = decode_basedisp_s(env, ipb); |
| orig_orb = s390_cpu_physical_memory_map(env, addr, &len, 0); |
| if (!orig_orb || len != sizeof(*orig_orb)) { |
| program_interrupt(env, PGM_SPECIFICATION, 2); |
| cc = -EIO; |
| goto out; |
| } |
| copy_orb_from_guest(&orb, orig_orb); |
| if (!ioinst_orb_valid(&orb)) { |
| program_interrupt(env, PGM_OPERAND, 2); |
| cc = -EIO; |
| goto out; |
| } |
| sch = css_find_subch(m, cssid, ssid, schid); |
| if (sch && css_subch_visible(sch)) { |
| ret = css_do_ssch(sch, &orb); |
| } |
| switch (ret) { |
| case -ENODEV: |
| cc = 3; |
| break; |
| case -EBUSY: |
| cc = 2; |
| break; |
| case 0: |
| cc = 0; |
| break; |
| default: |
| cc = 1; |
| break; |
| } |
| |
| out: |
| s390_cpu_physical_memory_unmap(env, orig_orb, len, 0); |
| return cc; |
| } |
| |
| int ioinst_handle_stcrw(CPUS390XState *env, uint32_t ipb) |
| { |
| CRW *crw; |
| uint64_t addr; |
| int cc; |
| hwaddr len = sizeof(*crw); |
| |
| addr = decode_basedisp_s(env, ipb); |
| crw = s390_cpu_physical_memory_map(env, addr, &len, 1); |
| if (!crw || len != sizeof(*crw)) { |
| program_interrupt(env, PGM_SPECIFICATION, 2); |
| cc = -EIO; |
| goto out; |
| } |
| cc = css_do_stcrw(crw); |
| /* 0 - crw stored, 1 - zeroes stored */ |
| out: |
| s390_cpu_physical_memory_unmap(env, crw, len, 1); |
| return cc; |
| } |
| |
| int ioinst_handle_stsch(CPUS390XState *env, uint64_t reg1, uint32_t ipb) |
| { |
| int cssid, ssid, schid, m; |
| SubchDev *sch; |
| uint64_t addr; |
| int cc; |
| SCHIB *schib; |
| hwaddr len = sizeof(*schib); |
| |
| if (ioinst_disassemble_sch_ident(reg1, &m, &cssid, &ssid, &schid)) { |
| program_interrupt(env, PGM_OPERAND, 2); |
| return -EIO; |
| } |
| trace_ioinst_sch_id("stsch", cssid, ssid, schid); |
| addr = decode_basedisp_s(env, ipb); |
| schib = s390_cpu_physical_memory_map(env, addr, &len, 1); |
| if (!schib || len != sizeof(*schib)) { |
| program_interrupt(env, PGM_SPECIFICATION, 2); |
| cc = -EIO; |
| goto out; |
| } |
| sch = css_find_subch(m, cssid, ssid, schid); |
| if (sch) { |
| if (css_subch_visible(sch)) { |
| css_do_stsch(sch, schib); |
| cc = 0; |
| } else { |
| /* Indicate no more subchannels in this css/ss */ |
| cc = 3; |
| } |
| } else { |
| if (css_schid_final(m, cssid, ssid, schid)) { |
| cc = 3; /* No more subchannels in this css/ss */ |
| } else { |
| /* Store an empty schib. */ |
| memset(schib, 0, sizeof(*schib)); |
| cc = 0; |
| } |
| } |
| out: |
| s390_cpu_physical_memory_unmap(env, schib, len, 1); |
| return cc; |
| } |
| |
| int ioinst_handle_tsch(CPUS390XState *env, uint64_t reg1, uint32_t ipb) |
| { |
| int cssid, ssid, schid, m; |
| SubchDev *sch; |
| IRB *irb; |
| uint64_t addr; |
| int ret = -ENODEV; |
| int cc; |
| hwaddr len = sizeof(*irb); |
| |
| if (ioinst_disassemble_sch_ident(reg1, &m, &cssid, &ssid, &schid)) { |
| program_interrupt(env, PGM_OPERAND, 2); |
| return -EIO; |
| } |
| trace_ioinst_sch_id("tsch", cssid, ssid, schid); |
| addr = decode_basedisp_s(env, ipb); |
| irb = s390_cpu_physical_memory_map(env, addr, &len, 1); |
| if (!irb || len != sizeof(*irb)) { |
| program_interrupt(env, PGM_SPECIFICATION, 2); |
| cc = -EIO; |
| goto out; |
| } |
| sch = css_find_subch(m, cssid, ssid, schid); |
| if (sch && css_subch_visible(sch)) { |
| ret = css_do_tsch(sch, irb); |
| /* 0 - status pending, 1 - not status pending */ |
| cc = ret; |
| } else { |
| cc = 3; |
| } |
| out: |
| s390_cpu_physical_memory_unmap(env, irb, sizeof(*irb), 1); |
| return cc; |
| } |
| |
| typedef struct ChscReq { |
| uint16_t len; |
| uint16_t command; |
| uint32_t param0; |
| uint32_t param1; |
| uint32_t param2; |
| } QEMU_PACKED ChscReq; |
| |
| typedef struct ChscResp { |
| uint16_t len; |
| uint16_t code; |
| uint32_t param; |
| char data[0]; |
| } QEMU_PACKED ChscResp; |
| |
| #define CHSC_MIN_RESP_LEN 0x0008 |
| |
| #define CHSC_SCPD 0x0002 |
| #define CHSC_SCSC 0x0010 |
| #define CHSC_SDA 0x0031 |
| |
| #define CHSC_SCPD_0_M 0x20000000 |
| #define CHSC_SCPD_0_C 0x10000000 |
| #define CHSC_SCPD_0_FMT 0x0f000000 |
| #define CHSC_SCPD_0_CSSID 0x00ff0000 |
| #define CHSC_SCPD_0_RFMT 0x00000f00 |
| #define CHSC_SCPD_0_RES 0xc000f000 |
| #define CHSC_SCPD_1_RES 0xffffff00 |
| #define CHSC_SCPD_01_CHPID 0x000000ff |
| static void ioinst_handle_chsc_scpd(ChscReq *req, ChscResp *res) |
| { |
| uint16_t len = be16_to_cpu(req->len); |
| uint32_t param0 = be32_to_cpu(req->param0); |
| uint32_t param1 = be32_to_cpu(req->param1); |
| uint16_t resp_code; |
| int rfmt; |
| uint16_t cssid; |
| uint8_t f_chpid, l_chpid; |
| int desc_size; |
| int m; |
| |
| rfmt = (param0 & CHSC_SCPD_0_RFMT) >> 8; |
| if ((rfmt == 0) || (rfmt == 1)) { |
| rfmt = !!(param0 & CHSC_SCPD_0_C); |
| } |
| if ((len != 0x0010) || (param0 & CHSC_SCPD_0_RES) || |
| (param1 & CHSC_SCPD_1_RES) || req->param2) { |
| resp_code = 0x0003; |
| goto out_err; |
| } |
| if (param0 & CHSC_SCPD_0_FMT) { |
| resp_code = 0x0007; |
| goto out_err; |
| } |
| cssid = (param0 & CHSC_SCPD_0_CSSID) >> 16; |
| m = param0 & CHSC_SCPD_0_M; |
| if (cssid != 0) { |
| if (!m || !css_present(cssid)) { |
| resp_code = 0x0008; |
| goto out_err; |
| } |
| } |
| f_chpid = param0 & CHSC_SCPD_01_CHPID; |
| l_chpid = param1 & CHSC_SCPD_01_CHPID; |
| if (l_chpid < f_chpid) { |
| resp_code = 0x0003; |
| goto out_err; |
| } |
| /* css_collect_chp_desc() is endian-aware */ |
| desc_size = css_collect_chp_desc(m, cssid, f_chpid, l_chpid, rfmt, |
| &res->data); |
| res->code = cpu_to_be16(0x0001); |
| res->len = cpu_to_be16(8 + desc_size); |
| res->param = cpu_to_be32(rfmt); |
| return; |
| |
| out_err: |
| res->code = cpu_to_be16(resp_code); |
| res->len = cpu_to_be16(CHSC_MIN_RESP_LEN); |
| res->param = cpu_to_be32(rfmt); |
| } |
| |
| #define CHSC_SCSC_0_M 0x20000000 |
| #define CHSC_SCSC_0_FMT 0x000f0000 |
| #define CHSC_SCSC_0_CSSID 0x0000ff00 |
| #define CHSC_SCSC_0_RES 0xdff000ff |
| static void ioinst_handle_chsc_scsc(ChscReq *req, ChscResp *res) |
| { |
| uint16_t len = be16_to_cpu(req->len); |
| uint32_t param0 = be32_to_cpu(req->param0); |
| uint8_t cssid; |
| uint16_t resp_code; |
| uint32_t general_chars[510]; |
| uint32_t chsc_chars[508]; |
| |
| if (len != 0x0010) { |
| resp_code = 0x0003; |
| goto out_err; |
| } |
| |
| if (param0 & CHSC_SCSC_0_FMT) { |
| resp_code = 0x0007; |
| goto out_err; |
| } |
| cssid = (param0 & CHSC_SCSC_0_CSSID) >> 8; |
| if (cssid != 0) { |
| if (!(param0 & CHSC_SCSC_0_M) || !css_present(cssid)) { |
| resp_code = 0x0008; |
| goto out_err; |
| } |
| } |
| if ((param0 & CHSC_SCSC_0_RES) || req->param1 || req->param2) { |
| resp_code = 0x0003; |
| goto out_err; |
| } |
| res->code = cpu_to_be16(0x0001); |
| res->len = cpu_to_be16(4080); |
| res->param = 0; |
| |
| memset(general_chars, 0, sizeof(general_chars)); |
| memset(chsc_chars, 0, sizeof(chsc_chars)); |
| |
| general_chars[0] = cpu_to_be32(0x03000000); |
| general_chars[1] = cpu_to_be32(0x00059000); |
| |
| chsc_chars[0] = cpu_to_be32(0x40000000); |
| chsc_chars[3] = cpu_to_be32(0x00040000); |
| |
| memcpy(res->data, general_chars, sizeof(general_chars)); |
| memcpy(res->data + sizeof(general_chars), chsc_chars, sizeof(chsc_chars)); |
| return; |
| |
| out_err: |
| res->code = cpu_to_be16(resp_code); |
| res->len = cpu_to_be16(CHSC_MIN_RESP_LEN); |
| res->param = 0; |
| } |
| |
| #define CHSC_SDA_0_FMT 0x0f000000 |
| #define CHSC_SDA_0_OC 0x0000ffff |
| #define CHSC_SDA_0_RES 0xf0ff0000 |
| #define CHSC_SDA_OC_MCSSE 0x0 |
| #define CHSC_SDA_OC_MSS 0x2 |
| static void ioinst_handle_chsc_sda(ChscReq *req, ChscResp *res) |
| { |
| uint16_t resp_code = 0x0001; |
| uint16_t len = be16_to_cpu(req->len); |
| uint32_t param0 = be32_to_cpu(req->param0); |
| uint16_t oc; |
| int ret; |
| |
| if ((len != 0x0400) || (param0 & CHSC_SDA_0_RES)) { |
| resp_code = 0x0003; |
| goto out; |
| } |
| |
| if (param0 & CHSC_SDA_0_FMT) { |
| resp_code = 0x0007; |
| goto out; |
| } |
| |
| oc = param0 & CHSC_SDA_0_OC; |
| switch (oc) { |
| case CHSC_SDA_OC_MCSSE: |
| ret = css_enable_mcsse(); |
| if (ret == -EINVAL) { |
| resp_code = 0x0101; |
| goto out; |
| } |
| break; |
| case CHSC_SDA_OC_MSS: |
| ret = css_enable_mss(); |
| if (ret == -EINVAL) { |
| resp_code = 0x0101; |
| goto out; |
| } |
| break; |
| default: |
| resp_code = 0x0003; |
| goto out; |
| } |
| |
| out: |
| res->code = cpu_to_be16(resp_code); |
| res->len = cpu_to_be16(CHSC_MIN_RESP_LEN); |
| res->param = 0; |
| } |
| |
| static void ioinst_handle_chsc_unimplemented(ChscResp *res) |
| { |
| res->len = cpu_to_be16(CHSC_MIN_RESP_LEN); |
| res->code = cpu_to_be16(0x0004); |
| res->param = 0; |
| } |
| |
| int ioinst_handle_chsc(CPUS390XState *env, uint32_t ipb) |
| { |
| ChscReq *req; |
| ChscResp *res; |
| uint64_t addr; |
| int reg; |
| uint16_t len; |
| uint16_t command; |
| hwaddr map_size = TARGET_PAGE_SIZE; |
| int ret = 0; |
| |
| trace_ioinst("chsc"); |
| reg = (ipb >> 20) & 0x00f; |
| addr = env->regs[reg]; |
| /* Page boundary? */ |
| if (addr & 0xfff) { |
| program_interrupt(env, PGM_SPECIFICATION, 2); |
| return -EIO; |
| } |
| req = s390_cpu_physical_memory_map(env, addr, &map_size, 1); |
| if (!req || map_size != TARGET_PAGE_SIZE) { |
| program_interrupt(env, PGM_SPECIFICATION, 2); |
| ret = -EIO; |
| goto out; |
| } |
| len = be16_to_cpu(req->len); |
| /* Length field valid? */ |
| if ((len < 16) || (len > 4088) || (len & 7)) { |
| program_interrupt(env, PGM_OPERAND, 2); |
| ret = -EIO; |
| goto out; |
| } |
| memset((char *)req + len, 0, TARGET_PAGE_SIZE - len); |
| res = (void *)((char *)req + len); |
| command = be16_to_cpu(req->command); |
| trace_ioinst_chsc_cmd(command, len); |
| switch (command) { |
| case CHSC_SCSC: |
| ioinst_handle_chsc_scsc(req, res); |
| break; |
| case CHSC_SCPD: |
| ioinst_handle_chsc_scpd(req, res); |
| break; |
| case CHSC_SDA: |
| ioinst_handle_chsc_sda(req, res); |
| break; |
| default: |
| ioinst_handle_chsc_unimplemented(res); |
| break; |
| } |
| |
| out: |
| s390_cpu_physical_memory_unmap(env, req, map_size, 1); |
| return ret; |
| } |
| |
| int ioinst_handle_tpi(CPUS390XState *env, uint32_t ipb) |
| { |
| uint64_t addr; |
| int lowcore; |
| IOIntCode *int_code; |
| hwaddr len, orig_len; |
| int ret; |
| |
| trace_ioinst("tpi"); |
| addr = decode_basedisp_s(env, ipb); |
| lowcore = addr ? 0 : 1; |
| len = lowcore ? 8 /* two words */ : 12 /* three words */; |
| orig_len = len; |
| int_code = s390_cpu_physical_memory_map(env, addr, &len, 1); |
| if (!int_code || (len != orig_len)) { |
| program_interrupt(env, PGM_SPECIFICATION, 2); |
| ret = -EIO; |
| goto out; |
| } |
| ret = css_do_tpi(int_code, lowcore); |
| out: |
| s390_cpu_physical_memory_unmap(env, int_code, len, 1); |
| return ret; |
| } |
| |
| #define SCHM_REG1_RES(_reg) (_reg & 0x000000000ffffffc) |
| #define SCHM_REG1_MBK(_reg) ((_reg & 0x00000000f0000000) >> 28) |
| #define SCHM_REG1_UPD(_reg) ((_reg & 0x0000000000000002) >> 1) |
| #define SCHM_REG1_DCT(_reg) (_reg & 0x0000000000000001) |
| |
| int ioinst_handle_schm(CPUS390XState *env, uint64_t reg1, uint64_t reg2, |
| uint32_t ipb) |
| { |
| uint8_t mbk; |
| int update; |
| int dct; |
| |
| trace_ioinst("schm"); |
| |
| if (SCHM_REG1_RES(reg1)) { |
| program_interrupt(env, PGM_OPERAND, 2); |
| return -EIO; |
| } |
| |
| mbk = SCHM_REG1_MBK(reg1); |
| update = SCHM_REG1_UPD(reg1); |
| dct = SCHM_REG1_DCT(reg1); |
| |
| if (update && (reg2 & 0x0000000000000fff)) { |
| program_interrupt(env, PGM_OPERAND, 2); |
| return -EIO; |
| } |
| |
| css_do_schm(mbk, update, dct, update ? reg2 : 0); |
| |
| return 0; |
| } |
| |
| int ioinst_handle_rsch(CPUS390XState *env, uint64_t reg1) |
| { |
| int cssid, ssid, schid, m; |
| SubchDev *sch; |
| int ret = -ENODEV; |
| int cc; |
| |
| if (ioinst_disassemble_sch_ident(reg1, &m, &cssid, &ssid, &schid)) { |
| program_interrupt(env, PGM_OPERAND, 2); |
| return -EIO; |
| } |
| trace_ioinst_sch_id("rsch", cssid, ssid, schid); |
| sch = css_find_subch(m, cssid, ssid, schid); |
| if (sch && css_subch_visible(sch)) { |
| ret = css_do_rsch(sch); |
| } |
| switch (ret) { |
| case -ENODEV: |
| cc = 3; |
| break; |
| case -EINVAL: |
| cc = 2; |
| break; |
| case 0: |
| cc = 0; |
| break; |
| default: |
| cc = 1; |
| break; |
| } |
| |
| return cc; |
| |
| } |
| |
| #define RCHP_REG1_RES(_reg) (_reg & 0x00000000ff00ff00) |
| #define RCHP_REG1_CSSID(_reg) ((_reg & 0x0000000000ff0000) >> 16) |
| #define RCHP_REG1_CHPID(_reg) (_reg & 0x00000000000000ff) |
| int ioinst_handle_rchp(CPUS390XState *env, uint64_t reg1) |
| { |
| int cc; |
| uint8_t cssid; |
| uint8_t chpid; |
| int ret; |
| |
| if (RCHP_REG1_RES(reg1)) { |
| program_interrupt(env, PGM_OPERAND, 2); |
| return -EIO; |
| } |
| |
| cssid = RCHP_REG1_CSSID(reg1); |
| chpid = RCHP_REG1_CHPID(reg1); |
| |
| trace_ioinst_chp_id("rchp", cssid, chpid); |
| |
| ret = css_do_rchp(cssid, chpid); |
| |
| switch (ret) { |
| case -ENODEV: |
| cc = 3; |
| break; |
| case -EBUSY: |
| cc = 2; |
| break; |
| case 0: |
| cc = 0; |
| break; |
| default: |
| /* Invalid channel subsystem. */ |
| program_interrupt(env, PGM_OPERAND, 2); |
| return -EIO; |
| } |
| |
| return cc; |
| } |
| |
| #define SAL_REG1_INVALID(_reg) (_reg & 0x0000000080000000) |
| int ioinst_handle_sal(CPUS390XState *env, uint64_t reg1) |
| { |
| /* We do not provide address limit checking, so let's suppress it. */ |
| if (SAL_REG1_INVALID(reg1) || reg1 & 0x000000000000ffff) { |
| program_interrupt(env, PGM_OPERAND, 2); |
| return -EIO; |
| } |
| return 0; |
| } |
