diff options
Diffstat (limited to 'target-s390x/op_helper.c')
| -rw-r--r-- | target-s390x/op_helper.c | 1159 |
1 files changed, 1 insertions, 1158 deletions
diff --git a/target-s390x/op_helper.c b/target-s390x/op_helper.c index 3b8b997abf..bb8dbf55d0 100644 --- a/target-s390x/op_helper.c +++ b/target-s390x/op_helper.c @@ -32,57 +32,8 @@ #endif #if !defined(CONFIG_USER_ONLY) -#include "sysemu.h" -#endif - -/*****************************************************************************/ -/* Softmmu support */ -#if !defined(CONFIG_USER_ONLY) #include "softmmu_exec.h" - -#define MMUSUFFIX _mmu - -#define SHIFT 0 -#include "softmmu_template.h" - -#define SHIFT 1 -#include "softmmu_template.h" - -#define SHIFT 2 -#include "softmmu_template.h" - -#define SHIFT 3 -#include "softmmu_template.h" - -/* try to fill the TLB and return an exception if error. If retaddr is - NULL, it means that the function was called in C code (i.e. not - from generated code or from helper.c) */ -/* XXX: fix it to restore all registers */ -void tlb_fill(CPUS390XState *env1, target_ulong addr, int is_write, int mmu_idx, - uintptr_t retaddr) -{ - TranslationBlock *tb; - CPUS390XState *saved_env; - int ret; - - saved_env = env; - env = env1; - ret = cpu_s390x_handle_mmu_fault(env, addr, is_write, mmu_idx); - if (unlikely(ret != 0)) { - if (likely(retaddr)) { - /* now we have a real cpu fault */ - tb = tb_find_pc(retaddr); - if (likely(tb)) { - /* the PC is inside the translated code. It means that we have - a virtual CPU fault */ - cpu_restore_state(tb, env, retaddr); - } - } - cpu_loop_exit(env); - } - env = saved_env; -} - +#include "sysemu.h" #endif /* #define DEBUG_HELPER */ @@ -101,840 +52,6 @@ void HELPER(exception)(uint32_t excp) } #ifndef CONFIG_USER_ONLY -static void mvc_fast_memset(CPUS390XState *env, uint32_t l, uint64_t dest, - uint8_t byte) -{ - target_phys_addr_t dest_phys; - target_phys_addr_t len = l; - void *dest_p; - uint64_t asc = env->psw.mask & PSW_MASK_ASC; - int flags; - - if (mmu_translate(env, dest, 1, asc, &dest_phys, &flags)) { - stb(dest, byte); - cpu_abort(env, "should never reach here"); - } - dest_phys |= dest & ~TARGET_PAGE_MASK; - - dest_p = cpu_physical_memory_map(dest_phys, &len, 1); - - memset(dest_p, byte, len); - - cpu_physical_memory_unmap(dest_p, 1, len, len); -} - -static void mvc_fast_memmove(CPUS390XState *env, uint32_t l, uint64_t dest, - uint64_t src) -{ - target_phys_addr_t dest_phys; - target_phys_addr_t src_phys; - target_phys_addr_t len = l; - void *dest_p; - void *src_p; - uint64_t asc = env->psw.mask & PSW_MASK_ASC; - int flags; - - if (mmu_translate(env, dest, 1, asc, &dest_phys, &flags)) { - stb(dest, 0); - cpu_abort(env, "should never reach here"); - } - dest_phys |= dest & ~TARGET_PAGE_MASK; - - if (mmu_translate(env, src, 0, asc, &src_phys, &flags)) { - ldub(src); - cpu_abort(env, "should never reach here"); - } - src_phys |= src & ~TARGET_PAGE_MASK; - - dest_p = cpu_physical_memory_map(dest_phys, &len, 1); - src_p = cpu_physical_memory_map(src_phys, &len, 0); - - memmove(dest_p, src_p, len); - - cpu_physical_memory_unmap(dest_p, 1, len, len); - cpu_physical_memory_unmap(src_p, 0, len, len); -} -#endif - -/* and on array */ -uint32_t HELPER(nc)(uint32_t l, uint64_t dest, uint64_t src) -{ - int i; - unsigned char x; - uint32_t cc = 0; - - HELPER_LOG("%s l %d dest %" PRIx64 " src %" PRIx64 "\n", - __func__, l, dest, src); - for (i = 0; i <= l; i++) { - x = ldub(dest + i) & ldub(src + i); - if (x) { - cc = 1; - } - stb(dest + i, x); - } - return cc; -} - -/* xor on array */ -uint32_t HELPER(xc)(uint32_t l, uint64_t dest, uint64_t src) -{ - int i; - unsigned char x; - uint32_t cc = 0; - - HELPER_LOG("%s l %d dest %" PRIx64 " src %" PRIx64 "\n", - __func__, l, dest, src); - -#ifndef CONFIG_USER_ONLY - /* xor with itself is the same as memset(0) */ - if ((l > 32) && (src == dest) && - (src & TARGET_PAGE_MASK) == ((src + l) & TARGET_PAGE_MASK)) { - mvc_fast_memset(env, l + 1, dest, 0); - return 0; - } -#else - if (src == dest) { - memset(g2h(dest), 0, l + 1); - return 0; - } -#endif - - for (i = 0; i <= l; i++) { - x = ldub(dest + i) ^ ldub(src + i); - if (x) { - cc = 1; - } - stb(dest + i, x); - } - return cc; -} - -/* or on array */ -uint32_t HELPER(oc)(uint32_t l, uint64_t dest, uint64_t src) -{ - int i; - unsigned char x; - uint32_t cc = 0; - - HELPER_LOG("%s l %d dest %" PRIx64 " src %" PRIx64 "\n", - __func__, l, dest, src); - for (i = 0; i <= l; i++) { - x = ldub(dest + i) | ldub(src + i); - if (x) { - cc = 1; - } - stb(dest + i, x); - } - return cc; -} - -/* memmove */ -void HELPER(mvc)(uint32_t l, uint64_t dest, uint64_t src) -{ - int i = 0; - int x = 0; - uint32_t l_64 = (l + 1) / 8; - - HELPER_LOG("%s l %d dest %" PRIx64 " src %" PRIx64 "\n", - __func__, l, dest, src); - -#ifndef CONFIG_USER_ONLY - if ((l > 32) && - (src & TARGET_PAGE_MASK) == ((src + l) & TARGET_PAGE_MASK) && - (dest & TARGET_PAGE_MASK) == ((dest + l) & TARGET_PAGE_MASK)) { - if (dest == (src + 1)) { - mvc_fast_memset(env, l + 1, dest, ldub(src)); - return; - } else if ((src & TARGET_PAGE_MASK) != (dest & TARGET_PAGE_MASK)) { - mvc_fast_memmove(env, l + 1, dest, src); - return; - } - } -#else - if (dest == (src + 1)) { - memset(g2h(dest), ldub(src), l + 1); - return; - } else { - memmove(g2h(dest), g2h(src), l + 1); - return; - } -#endif - - /* handle the parts that fit into 8-byte loads/stores */ - if (dest != (src + 1)) { - for (i = 0; i < l_64; i++) { - stq(dest + x, ldq(src + x)); - x += 8; - } - } - - /* slow version crossing pages with byte accesses */ - for (i = x; i <= l; i++) { - stb(dest + i, ldub(src + i)); - } -} - -/* compare unsigned byte arrays */ -uint32_t HELPER(clc)(uint32_t l, uint64_t s1, uint64_t s2) -{ - int i; - unsigned char x, y; - uint32_t cc; - - HELPER_LOG("%s l %d s1 %" PRIx64 " s2 %" PRIx64 "\n", - __func__, l, s1, s2); - for (i = 0; i <= l; i++) { - x = ldub(s1 + i); - y = ldub(s2 + i); - HELPER_LOG("%02x (%c)/%02x (%c) ", x, x, y, y); - if (x < y) { - cc = 1; - goto done; - } else if (x > y) { - cc = 2; - goto done; - } - } - cc = 0; - done: - HELPER_LOG("\n"); - return cc; -} - -/* compare logical under mask */ -uint32_t HELPER(clm)(uint32_t r1, uint32_t mask, uint64_t addr) -{ - uint8_t r, d; - uint32_t cc; - - HELPER_LOG("%s: r1 0x%x mask 0x%x addr 0x%" PRIx64 "\n", __func__, r1, - mask, addr); - cc = 0; - while (mask) { - if (mask & 8) { - d = ldub(addr); - r = (r1 & 0xff000000UL) >> 24; - HELPER_LOG("mask 0x%x %02x/%02x (0x%" PRIx64 ") ", mask, r, d, - addr); - if (r < d) { - cc = 1; - break; - } else if (r > d) { - cc = 2; - break; - } - addr++; - } - mask = (mask << 1) & 0xf; - r1 <<= 8; - } - HELPER_LOG("\n"); - return cc; -} - -/* store character under mask */ -void HELPER(stcm)(uint32_t r1, uint32_t mask, uint64_t addr) -{ - uint8_t r; - - HELPER_LOG("%s: r1 0x%x mask 0x%x addr 0x%lx\n", __func__, r1, mask, - addr); - while (mask) { - if (mask & 8) { - r = (r1 & 0xff000000UL) >> 24; - stb(addr, r); - HELPER_LOG("mask 0x%x %02x (0x%lx) ", mask, r, addr); - addr++; - } - mask = (mask << 1) & 0xf; - r1 <<= 8; - } - HELPER_LOG("\n"); -} - -static inline uint64_t get_address(int x2, int b2, int d2) -{ - uint64_t r = d2; - - if (x2) { - r += env->regs[x2]; - } - - if (b2) { - r += env->regs[b2]; - } - - /* 31-Bit mode */ - if (!(env->psw.mask & PSW_MASK_64)) { - r &= 0x7fffffff; - } - - return r; -} - -static inline uint64_t get_address_31fix(int reg) -{ - uint64_t r = env->regs[reg]; - - /* 31-Bit mode */ - if (!(env->psw.mask & PSW_MASK_64)) { - r &= 0x7fffffff; - } - - return r; -} - -/* search string (c is byte to search, r2 is string, r1 end of string) */ -uint32_t HELPER(srst)(uint32_t c, uint32_t r1, uint32_t r2) -{ - uint64_t i; - uint32_t cc = 2; - uint64_t str = get_address_31fix(r2); - uint64_t end = get_address_31fix(r1); - - HELPER_LOG("%s: c %d *r1 0x%" PRIx64 " *r2 0x%" PRIx64 "\n", __func__, - c, env->regs[r1], env->regs[r2]); - - for (i = str; i != end; i++) { - if (ldub(i) == c) { - env->regs[r1] = i; - cc = 1; - break; - } - } - - return cc; -} - -/* unsigned string compare (c is string terminator) */ -uint32_t HELPER(clst)(uint32_t c, uint32_t r1, uint32_t r2) -{ - uint64_t s1 = get_address_31fix(r1); - uint64_t s2 = get_address_31fix(r2); - uint8_t v1, v2; - uint32_t cc; - - c = c & 0xff; -#ifdef CONFIG_USER_ONLY - if (!c) { - HELPER_LOG("%s: comparing '%s' and '%s'\n", - __func__, (char *)g2h(s1), (char *)g2h(s2)); - } -#endif - for (;;) { - v1 = ldub(s1); - v2 = ldub(s2); - if ((v1 == c || v2 == c) || (v1 != v2)) { - break; - } - s1++; - s2++; - } - - if (v1 == v2) { - cc = 0; - } else { - cc = (v1 < v2) ? 1 : 2; - /* FIXME: 31-bit mode! */ - env->regs[r1] = s1; - env->regs[r2] = s2; - } - return cc; -} - -/* move page */ -void HELPER(mvpg)(uint64_t r0, uint64_t r1, uint64_t r2) -{ - /* XXX missing r0 handling */ -#ifdef CONFIG_USER_ONLY - int i; - - for (i = 0; i < TARGET_PAGE_SIZE; i++) { - stb(r1 + i, ldub(r2 + i)); - } -#else - mvc_fast_memmove(env, TARGET_PAGE_SIZE, r1, r2); -#endif -} - -/* string copy (c is string terminator) */ -void HELPER(mvst)(uint32_t c, uint32_t r1, uint32_t r2) -{ - uint64_t dest = get_address_31fix(r1); - uint64_t src = get_address_31fix(r2); - uint8_t v; - - c = c & 0xff; -#ifdef CONFIG_USER_ONLY - if (!c) { - HELPER_LOG("%s: copy '%s' to 0x%lx\n", __func__, (char *)g2h(src), - dest); - } -#endif - for (;;) { - v = ldub(src); - stb(dest, v); - if (v == c) { - break; - } - src++; - dest++; - } - env->regs[r1] = dest; /* FIXME: 31-bit mode! */ -} - -/* compare and swap 64-bit */ -uint32_t HELPER(csg)(uint32_t r1, uint64_t a2, uint32_t r3) -{ - /* FIXME: locking? */ - uint32_t cc; - uint64_t v2 = ldq(a2); - - if (env->regs[r1] == v2) { - cc = 0; - stq(a2, env->regs[r3]); - } else { - cc = 1; - env->regs[r1] = v2; - } - return cc; -} - -/* compare double and swap 64-bit */ -uint32_t HELPER(cdsg)(uint32_t r1, uint64_t a2, uint32_t r3) -{ - /* FIXME: locking? */ - uint32_t cc; - uint64_t v2_hi = ldq(a2); - uint64_t v2_lo = ldq(a2 + 8); - uint64_t v1_hi = env->regs[r1]; - uint64_t v1_lo = env->regs[r1 + 1]; - - if ((v1_hi == v2_hi) && (v1_lo == v2_lo)) { - cc = 0; - stq(a2, env->regs[r3]); - stq(a2 + 8, env->regs[r3 + 1]); - } else { - cc = 1; - env->regs[r1] = v2_hi; - env->regs[r1 + 1] = v2_lo; - } - - return cc; -} - -/* compare and swap 32-bit */ -uint32_t HELPER(cs)(uint32_t r1, uint64_t a2, uint32_t r3) -{ - /* FIXME: locking? */ - uint32_t cc; - uint32_t v2 = ldl(a2); - - HELPER_LOG("%s: r1 %d a2 0x%lx r3 %d\n", __func__, r1, a2, r3); - if (((uint32_t)env->regs[r1]) == v2) { - cc = 0; - stl(a2, (uint32_t)env->regs[r3]); - } else { - cc = 1; - env->regs[r1] = (env->regs[r1] & 0xffffffff00000000ULL) | v2; - } - return cc; -} - -static uint32_t helper_icm(uint32_t r1, uint64_t address, uint32_t mask) -{ - int pos = 24; /* top of the lower half of r1 */ - uint64_t rmask = 0xff000000ULL; - uint8_t val = 0; - int ccd = 0; - uint32_t cc = 0; - - while (mask) { - if (mask & 8) { - env->regs[r1] &= ~rmask; - val = ldub(address); - if ((val & 0x80) && !ccd) { - cc = 1; - } - ccd = 1; - if (val && cc == 0) { - cc = 2; - } - env->regs[r1] |= (uint64_t)val << pos; - address++; - } - mask = (mask << 1) & 0xf; - pos -= 8; - rmask >>= 8; - } - - return cc; -} - -/* execute instruction - this instruction executes an insn modified with the contents of r1 - it does not change the executed instruction in memory - it does not change the program counter - in other words: tricky... - currently implemented by interpreting the cases it is most commonly used in -*/ -uint32_t HELPER(ex)(uint32_t cc, uint64_t v1, uint64_t addr, uint64_t ret) -{ - uint16_t insn = lduw_code(addr); - - HELPER_LOG("%s: v1 0x%lx addr 0x%lx insn 0x%x\n", __func__, v1, addr, - insn); - if ((insn & 0xf0ff) == 0xd000) { - uint32_t l, insn2, b1, b2, d1, d2; - - l = v1 & 0xff; - insn2 = ldl_code(addr + 2); - b1 = (insn2 >> 28) & 0xf; - b2 = (insn2 >> 12) & 0xf; - d1 = (insn2 >> 16) & 0xfff; - d2 = insn2 & 0xfff; - switch (insn & 0xf00) { - case 0x200: - helper_mvc(l, get_address(0, b1, d1), get_address(0, b2, d2)); - break; - case 0x500: - cc = helper_clc(l, get_address(0, b1, d1), get_address(0, b2, d2)); - break; - case 0x700: - cc = helper_xc(l, get_address(0, b1, d1), get_address(0, b2, d2)); - break; - case 0xc00: - helper_tr(l, get_address(0, b1, d1), get_address(0, b2, d2)); - break; - default: - goto abort; - break; - } - } else if ((insn & 0xff00) == 0x0a00) { - /* supervisor call */ - HELPER_LOG("%s: svc %ld via execute\n", __func__, (insn | v1) & 0xff); - env->psw.addr = ret - 4; - env->int_svc_code = (insn | v1) & 0xff; - env->int_svc_ilc = 4; - helper_exception(EXCP_SVC); - } else if ((insn & 0xff00) == 0xbf00) { - uint32_t insn2, r1, r3, b2, d2; - - insn2 = ldl_code(addr + 2); - r1 = (insn2 >> 20) & 0xf; - r3 = (insn2 >> 16) & 0xf; - b2 = (insn2 >> 12) & 0xf; - d2 = insn2 & 0xfff; - cc = helper_icm(r1, get_address(0, b2, d2), r3); - } else { - abort: - cpu_abort(env, "EXECUTE on instruction prefix 0x%x not implemented\n", - insn); - } - return cc; -} - -/* store character under mask high operates on the upper half of r1 */ -void HELPER(stcmh)(uint32_t r1, uint64_t address, uint32_t mask) -{ - int pos = 56; /* top of the upper half of r1 */ - - while (mask) { - if (mask & 8) { - stb(address, (env->regs[r1] >> pos) & 0xff); - address++; - } - mask = (mask << 1) & 0xf; - pos -= 8; - } -} - -/* insert character under mask high; same as icm, but operates on the - upper half of r1 */ -uint32_t HELPER(icmh)(uint32_t r1, uint64_t address, uint32_t mask) -{ - int pos = 56; /* top of the upper half of r1 */ - uint64_t rmask = 0xff00000000000000ULL; - uint8_t val = 0; - int ccd = 0; - uint32_t cc = 0; - - while (mask) { - if (mask & 8) { - env->regs[r1] &= ~rmask; - val = ldub(address); - if ((val & 0x80) && !ccd) { - cc = 1; - } - ccd = 1; - if (val && cc == 0) { - cc = 2; - } - env->regs[r1] |= (uint64_t)val << pos; - address++; - } - mask = (mask << 1) & 0xf; - pos -= 8; - rmask >>= 8; - } - - return cc; -} - -/* load access registers r1 to r3 from memory at a2 */ -void HELPER(lam)(uint32_t r1, uint64_t a2, uint32_t r3) -{ - int i; - - for (i = r1;; i = (i + 1) % 16) { - env->aregs[i] = ldl(a2); - a2 += 4; - - if (i == r3) { - break; - } - } -} - -/* store access registers r1 to r3 in memory at a2 */ -void HELPER(stam)(uint32_t r1, uint64_t a2, uint32_t r3) -{ - int i; - - for (i = r1;; i = (i + 1) % 16) { - stl(a2, env->aregs[i]); - a2 += 4; - - if (i == r3) { - break; - } - } -} - -/* move long */ -uint32_t HELPER(mvcl)(uint32_t r1, uint32_t r2) -{ - uint64_t destlen = env->regs[r1 + 1] & 0xffffff; - uint64_t dest = get_address_31fix(r1); - uint64_t srclen = env->regs[r2 + 1] & 0xffffff; - uint64_t src = get_address_31fix(r2); - uint8_t pad = src >> 24; - uint8_t v; - uint32_t cc; - - if (destlen == srclen) { - cc = 0; - } else if (destlen < srclen) { - cc = 1; - } else { - cc = 2; - } - - if (srclen > destlen) { - srclen = destlen; - } - - for (; destlen && srclen; src++, dest++, destlen--, srclen--) { - v = ldub(src); - stb(dest, v); - } - - for (; destlen; dest++, destlen--) { - stb(dest, pad); - } - - env->regs[r1 + 1] = destlen; - /* can't use srclen here, we trunc'ed it */ - env->regs[r2 + 1] -= src - env->regs[r2]; - env->regs[r1] = dest; - env->regs[r2] = src; - - return cc; -} - -/* move long extended another memcopy insn with more bells and whistles */ -uint32_t HELPER(mvcle)(uint32_t r1, uint64_t a2, uint32_t r3) -{ - uint64_t destlen = env->regs[r1 + 1]; - uint64_t dest = env->regs[r1]; - uint64_t srclen = env->regs[r3 + 1]; - uint64_t src = env->regs[r3]; - uint8_t pad = a2 & 0xff; - uint8_t v; - uint32_t cc; - - if (!(env->psw.mask & PSW_MASK_64)) { - destlen = (uint32_t)destlen; - srclen = (uint32_t)srclen; - dest &= 0x7fffffff; - src &= 0x7fffffff; - } - - if (destlen == srclen) { - cc = 0; - } else if (destlen < srclen) { - cc = 1; - } else { - cc = 2; - } - - if (srclen > destlen) { - srclen = destlen; - } - - for (; destlen && srclen; src++, dest++, destlen--, srclen--) { - v = ldub(src); - stb(dest, v); - } - - for (; destlen; dest++, destlen--) { - stb(dest, pad); - } - - env->regs[r1 + 1] = destlen; - /* can't use srclen here, we trunc'ed it */ - /* FIXME: 31-bit mode! */ - env->regs[r3 + 1] -= src - env->regs[r3]; - env->regs[r1] = dest; - env->regs[r3] = src; - - return cc; -} - -/* compare logical long extended memcompare insn with padding */ -uint32_t HELPER(clcle)(uint32_t r1, uint64_t a2, uint32_t r3) -{ - uint64_t destlen = env->regs[r1 + 1]; - uint64_t dest = get_address_31fix(r1); - uint64_t srclen = env->regs[r3 + 1]; - uint64_t src = get_address_31fix(r3); - uint8_t pad = a2 & 0xff; - uint8_t v1 = 0, v2 = 0; - uint32_t cc = 0; - - if (!(destlen || srclen)) { - return cc; - } - - if (srclen > destlen) { - srclen = destlen; - } - - for (; destlen || srclen; src++, dest++, destlen--, srclen--) { - v1 = srclen ? ldub(src) : pad; - v2 = destlen ? ldub(dest) : pad; - if (v1 != v2) { - cc = (v1 < v2) ? 1 : 2; - break; - } - } - - env->regs[r1 + 1] = destlen; - /* can't use srclen here, we trunc'ed it */ - env->regs[r3 + 1] -= src - env->regs[r3]; - env->regs[r1] = dest; - env->regs[r3] = src; - - return cc; -} - -/* checksum */ -void HELPER(cksm)(uint32_t r1, uint32_t r2) -{ - uint64_t src = get_address_31fix(r2); - uint64_t src_len = env->regs[(r2 + 1) & 15]; - uint64_t cksm = (uint32_t)env->regs[r1]; - - while (src_len >= 4) { - cksm += ldl(src); - - /* move to next word */ - src_len -= 4; - src += 4; - } - - switch (src_len) { - case 0: - break; - case 1: - cksm += ldub(src) << 24; - break; - case 2: - cksm += lduw(src) << 16; - break; - case 3: - cksm += lduw(src) << 16; - cksm += ldub(src + 2) << 8; - break; - } - - /* indicate we've processed everything */ - env->regs[r2] = src + src_len; - env->regs[(r2 + 1) & 15] = 0; - - /* store result */ - env->regs[r1] = (env->regs[r1] & 0xffffffff00000000ULL) | - ((uint32_t)cksm + (cksm >> 32)); -} - -void HELPER(unpk)(uint32_t len, uint64_t dest, uint64_t src) -{ - int len_dest = len >> 4; - int len_src = len & 0xf; - uint8_t b; - int second_nibble = 0; - - dest += len_dest; - src += len_src; - - /* last byte is special, it only flips the nibbles */ - b = ldub(src); - stb(dest, (b << 4) | (b >> 4)); - src--; - len_src--; - - /* now pad every nibble with 0xf0 */ - - while (len_dest > 0) { - uint8_t cur_byte = 0; - - if (len_src > 0) { - cur_byte = ldub(src); - } - - len_dest--; - dest--; - - /* only advance one nibble at a time */ - if (second_nibble) { - cur_byte >>= 4; - len_src--; - src--; - } - second_nibble = !second_nibble; - - /* digit */ - cur_byte = (cur_byte & 0xf); - /* zone bits */ - cur_byte |= 0xf0; - - stb(dest, cur_byte); - } -} - -void HELPER(tr)(uint32_t len, uint64_t array, uint64_t trans) -{ - int i; - - for (i = 0; i <= len; i++) { - uint8_t byte = ldub(array + i); - uint8_t new_byte = ldub(trans + byte); - - stb(array + i, new_byte); - } -} - -#ifndef CONFIG_USER_ONLY void program_interrupt(CPUS390XState *env, uint32_t code, int ilc) { qemu_log("program interrupt at %#" PRIx64 "\n", env->psw.addr); @@ -1267,206 +384,6 @@ uint32_t HELPER(stsi)(uint64_t a0, uint32_t r0, uint32_t r1) return cc; } -void HELPER(lctlg)(uint32_t r1, uint64_t a2, uint32_t r3) -{ - int i; - uint64_t src = a2; - - for (i = r1;; i = (i + 1) % 16) { - env->cregs[i] = ldq(src); - HELPER_LOG("load ctl %d from 0x%" PRIx64 " == 0x%" PRIx64 "\n", - i, src, env->cregs[i]); - src += sizeof(uint64_t); - - if (i == r3) { - break; - } - } - - tlb_flush(env, 1); -} - -void HELPER(lctl)(uint32_t r1, uint64_t a2, uint32_t r3) -{ - int i; - uint64_t src = a2; - - for (i = r1;; i = (i + 1) % 16) { - env->cregs[i] = (env->cregs[i] & 0xFFFFFFFF00000000ULL) | ldl(src); - src += sizeof(uint32_t); - - if (i == r3) { - break; - } - } - - tlb_flush(env, 1); -} - -void HELPER(stctg)(uint32_t r1, uint64_t a2, uint32_t r3) -{ - int i; - uint64_t dest = a2; - - for (i = r1;; i = (i + 1) % 16) { - stq(dest, env->cregs[i]); - dest += sizeof(uint64_t); - - if (i == r3) { - break; - } - } -} - -void HELPER(stctl)(uint32_t r1, uint64_t a2, uint32_t r3) -{ - int i; - uint64_t dest = a2; - - for (i = r1;; i = (i + 1) % 16) { - stl(dest, env->cregs[i]); - dest += sizeof(uint32_t); - - if (i == r3) { - break; - } - } -} - -uint32_t HELPER(tprot)(uint64_t a1, uint64_t a2) -{ - /* XXX implement */ - - return 0; -} - -/* insert storage key extended */ -uint64_t HELPER(iske)(uint64_t r2) -{ - uint64_t addr = get_address(0, 0, r2); - - if (addr > ram_size) { - return 0; - } - - return env->storage_keys[addr / TARGET_PAGE_SIZE]; -} - -/* set storage key extended */ -void HELPER(sske)(uint32_t r1, uint64_t r2) -{ - uint64_t addr = get_address(0, 0, r2); - - if (addr > ram_size) { - return; - } - - env->storage_keys[addr / TARGET_PAGE_SIZE] = r1; -} - -/* reset reference bit extended */ -uint32_t HELPER(rrbe)(uint32_t r1, uint64_t r2) -{ - uint8_t re; - uint8_t key; - - if (r2 > ram_size) { - return 0; - } - - key = env->storage_keys[r2 / TARGET_PAGE_SIZE]; - re = key & (SK_R | SK_C); - env->storage_keys[r2 / TARGET_PAGE_SIZE] = (key & ~SK_R); - - /* - * cc - * - * 0 Reference bit zero; change bit zero - * 1 Reference bit zero; change bit one - * 2 Reference bit one; change bit zero - * 3 Reference bit one; change bit one - */ - - return re >> 1; -} - -/* compare and swap and purge */ -uint32_t HELPER(csp)(uint32_t r1, uint32_t r2) -{ - uint32_t cc; - uint32_t o1 = env->regs[r1]; - uint64_t a2 = get_address_31fix(r2) & ~3ULL; - uint32_t o2 = ldl(a2); - - if (o1 == o2) { - stl(a2, env->regs[(r1 + 1) & 15]); - if (env->regs[r2] & 0x3) { - /* flush TLB / ALB */ - tlb_flush(env, 1); - } - cc = 0; - } else { - env->regs[r1] = (env->regs[r1] & 0xffffffff00000000ULL) | o2; - cc = 1; - } - - return cc; -} - -static uint32_t mvc_asc(int64_t l, uint64_t a1, uint64_t mode1, uint64_t a2, - uint64_t mode2) -{ - target_ulong src, dest; - int flags, cc = 0, i; - - if (!l) { - return 0; - } else if (l > 256) { - /* max 256 */ - l = 256; - cc = 3; - } - - if (mmu_translate(env, a1 & TARGET_PAGE_MASK, 1, mode1, &dest, &flags)) { - cpu_loop_exit(env); - } - dest |= a1 & ~TARGET_PAGE_MASK; - - if (mmu_translate(env, a2 & TARGET_PAGE_MASK, 0, mode2, &src, &flags)) { - cpu_loop_exit(env); - } - src |= a2 & ~TARGET_PAGE_MASK; - - /* XXX replace w/ memcpy */ - for (i = 0; i < l; i++) { - /* XXX be more clever */ - if ((((dest + i) & TARGET_PAGE_MASK) != (dest & TARGET_PAGE_MASK)) || - (((src + i) & TARGET_PAGE_MASK) != (src & TARGET_PAGE_MASK))) { - mvc_asc(l - i, a1 + i, mode1, a2 + i, mode2); - break; - } - stb_phys(dest + i, ldub_phys(src + i)); - } - - return cc; -} - -uint32_t HELPER(mvcs)(uint64_t l, uint64_t a1, uint64_t a2) -{ - HELPER_LOG("%s: %16" PRIx64 " %16" PRIx64 " %16" PRIx64 "\n", - __func__, l, a1, a2); - - return mvc_asc(l, a1, PSW_ASC_SECONDARY, a2, PSW_ASC_PRIMARY); -} - -uint32_t HELPER(mvcp)(uint64_t l, uint64_t a1, uint64_t a2) -{ - HELPER_LOG("%s: %16" PRIx64 " %16" PRIx64 " %16" PRIx64 "\n", - __func__, l, a1, a2); - - return mvc_asc(l, a1, PSW_ASC_PRIMARY, a2, PSW_ASC_SECONDARY); -} - uint32_t HELPER(sigp)(uint64_t order_code, uint32_t r1, uint64_t cpu_addr) { int cc = 0; @@ -1508,78 +425,4 @@ uint32_t HELPER(sigp)(uint64_t order_code, uint32_t r1, uint64_t cpu_addr) return cc; } - -/* invalidate pte */ -void HELPER(ipte)(uint64_t pte_addr, uint64_t vaddr) -{ - uint64_t page = vaddr & TARGET_PAGE_MASK; - uint64_t pte = 0; - - /* XXX broadcast to other CPUs */ - - /* XXX Linux is nice enough to give us the exact pte address. - According to spec we'd have to find it out ourselves */ - /* XXX Linux is fine with overwriting the pte, the spec requires - us to only set the invalid bit */ - stq_phys(pte_addr, pte | _PAGE_INVALID); - - /* XXX we exploit the fact that Linux passes the exact virtual - address here - it's not obliged to! */ - tlb_flush_page(env, page); - - /* XXX 31-bit hack */ - if (page & 0x80000000) { - tlb_flush_page(env, page & ~0x80000000); - } else { - tlb_flush_page(env, page | 0x80000000); - } -} - -/* flush local tlb */ -void HELPER(ptlb)(void) -{ - tlb_flush(env, 1); -} - -/* store using real address */ -void HELPER(stura)(uint64_t addr, uint32_t v1) -{ - stw_phys(get_address(0, 0, addr), v1); -} - -/* load real address */ -uint32_t HELPER(lra)(uint64_t addr, uint32_t r1) -{ - uint32_t cc = 0; - int old_exc = env->exception_index; - uint64_t asc = env->psw.mask & PSW_MASK_ASC; - uint64_t ret; - int flags; - - /* XXX incomplete - has more corner cases */ - if (!(env->psw.mask & PSW_MASK_64) && (addr >> 32)) { - program_interrupt(env, PGM_SPECIAL_OP, 2); - } - - env->exception_index = old_exc; - if (mmu_translate(env, addr, 0, asc, &ret, &flags)) { - cc = 3; - } - if (env->exception_index == EXCP_PGM) { - ret = env->int_pgm_code | 0x80000000; - } else { - ret |= addr & ~TARGET_PAGE_MASK; - } - env->exception_index = old_exc; - - if (!(env->psw.mask & PSW_MASK_64)) { - env->regs[r1] = (env->regs[r1] & 0xffffffff00000000ULL) | - (ret & 0xffffffffULL); - } else { - env->regs[r1] = ret; - } - - return cc; -} - #endif |