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/*
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* defines common to all virtual CPUs
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*
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* Copyright (c) 2003 Fabrice Bellard
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library; if not, see <http://www.gnu.org/licenses/>.
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*/
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#ifndef CPU_ALL_H
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#define CPU_ALL_H
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#include "qemu-common.h" |
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#include "cpu-common.h" |
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/* some important defines:
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*
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* WORDS_ALIGNED : if defined, the host cpu can only make word aligned
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* memory accesses.
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*
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* HOST_WORDS_BIGENDIAN : if defined, the host cpu is big endian and
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* otherwise little endian.
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*
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* (TARGET_WORDS_ALIGNED : same for target cpu (not supported yet))
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*
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* TARGET_WORDS_BIGENDIAN : same for target cpu
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*/
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#include "softfloat.h" |
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#if defined(HOST_WORDS_BIGENDIAN) != defined(TARGET_WORDS_BIGENDIAN)
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#define BSWAP_NEEDED
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#endif
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#ifdef BSWAP_NEEDED
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static inline uint16_t tswap16(uint16_t s) |
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{ |
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return bswap16(s);
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} |
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static inline uint32_t tswap32(uint32_t s) |
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{ |
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return bswap32(s);
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} |
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static inline uint64_t tswap64(uint64_t s) |
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{ |
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return bswap64(s);
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} |
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static inline void tswap16s(uint16_t *s) |
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{ |
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*s = bswap16(*s); |
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} |
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static inline void tswap32s(uint32_t *s) |
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{ |
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*s = bswap32(*s); |
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} |
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static inline void tswap64s(uint64_t *s) |
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{ |
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*s = bswap64(*s); |
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} |
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#else
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static inline uint16_t tswap16(uint16_t s) |
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{ |
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return s;
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} |
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static inline uint32_t tswap32(uint32_t s) |
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{ |
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return s;
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} |
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static inline uint64_t tswap64(uint64_t s) |
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{ |
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return s;
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} |
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static inline void tswap16s(uint16_t *s) |
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{ |
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} |
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static inline void tswap32s(uint32_t *s) |
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{ |
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} |
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static inline void tswap64s(uint64_t *s) |
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{ |
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} |
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#endif
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#if TARGET_LONG_SIZE == 4 |
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#define tswapl(s) tswap32(s)
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#define tswapls(s) tswap32s((uint32_t *)(s))
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#define bswaptls(s) bswap32s(s)
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#else
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#define tswapl(s) tswap64(s)
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#define tswapls(s) tswap64s((uint64_t *)(s))
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#define bswaptls(s) bswap64s(s)
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#endif
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typedef union { |
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float32 f; |
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uint32_t l; |
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} CPU_FloatU; |
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/* NOTE: arm FPA is horrible as double 32 bit words are stored in big
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endian ! */
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typedef union { |
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float64 d; |
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#if defined(HOST_WORDS_BIGENDIAN) \
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|| (defined(__arm__) && !defined(__VFP_FP__) && !defined(CONFIG_SOFTFLOAT)) |
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struct {
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uint32_t upper; |
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uint32_t lower; |
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} l; |
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#else
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struct {
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uint32_t lower; |
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uint32_t upper; |
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} l; |
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#endif
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uint64_t ll; |
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} CPU_DoubleU; |
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#if defined(FLOATX80)
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typedef union { |
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floatx80 d; |
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struct {
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uint64_t lower; |
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uint16_t upper; |
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} l; |
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} CPU_LDoubleU; |
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#endif
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#if defined(CONFIG_SOFTFLOAT)
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typedef union { |
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float128 q; |
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#if defined(HOST_WORDS_BIGENDIAN)
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struct {
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uint32_t upmost; |
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uint32_t upper; |
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uint32_t lower; |
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uint32_t lowest; |
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} l; |
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struct {
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uint64_t upper; |
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uint64_t lower; |
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} ll; |
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#else
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struct {
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uint32_t lowest; |
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uint32_t lower; |
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uint32_t upper; |
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uint32_t upmost; |
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} l; |
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struct {
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uint64_t lower; |
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uint64_t upper; |
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} ll; |
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#endif
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} CPU_QuadU; |
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#endif
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/* CPU memory access without any memory or io remapping */
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/*
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* the generic syntax for the memory accesses is:
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*
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* load: ld{type}{sign}{size}{endian}_{access_type}(ptr)
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*
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* store: st{type}{size}{endian}_{access_type}(ptr, val)
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*
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* type is:
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* (empty): integer access
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* f : float access
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*
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* sign is:
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* (empty): for floats or 32 bit size
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* u : unsigned
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* s : signed
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*
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* size is:
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* b: 8 bits
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* w: 16 bits
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* l: 32 bits
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* q: 64 bits
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*
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* endian is:
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* (empty): target cpu endianness or 8 bit access
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* r : reversed target cpu endianness (not implemented yet)
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* be : big endian (not implemented yet)
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* le : little endian (not implemented yet)
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*
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* access_type is:
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* raw : host memory access
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* user : user mode access using soft MMU
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* kernel : kernel mode access using soft MMU
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*/
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static inline int ldub_p(const void *ptr) |
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{ |
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return *(uint8_t *)ptr;
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} |
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static inline int ldsb_p(const void *ptr) |
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{ |
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return *(int8_t *)ptr;
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} |
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static inline void stb_p(void *ptr, int v) |
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{ |
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*(uint8_t *)ptr = v; |
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} |
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/* NOTE: on arm, putting 2 in /proc/sys/debug/alignment so that the
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kernel handles unaligned load/stores may give better results, but
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it is a system wide setting : bad */
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#if defined(HOST_WORDS_BIGENDIAN) || defined(WORDS_ALIGNED)
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/* conservative code for little endian unaligned accesses */
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static inline int lduw_le_p(const void *ptr) |
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{ |
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#ifdef _ARCH_PPC
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int val;
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__asm__ __volatile__ ("lhbrx %0,0,%1" : "=r" (val) : "r" (ptr)); |
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return val;
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#else
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const uint8_t *p = ptr;
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return p[0] | (p[1] << 8); |
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#endif
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} |
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static inline int ldsw_le_p(const void *ptr) |
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{ |
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#ifdef _ARCH_PPC
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int val;
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__asm__ __volatile__ ("lhbrx %0,0,%1" : "=r" (val) : "r" (ptr)); |
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return (int16_t)val;
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#else
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const uint8_t *p = ptr;
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return (int16_t)(p[0] | (p[1] << 8)); |
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#endif
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} |
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static inline int ldl_le_p(const void *ptr) |
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{ |
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#ifdef _ARCH_PPC
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int val;
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__asm__ __volatile__ ("lwbrx %0,0,%1" : "=r" (val) : "r" (ptr)); |
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return val;
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#else
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const uint8_t *p = ptr;
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return p[0] | (p[1] << 8) | (p[2] << 16) | (p[3] << 24); |
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#endif
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} |
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static inline uint64_t ldq_le_p(const void *ptr) |
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{ |
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const uint8_t *p = ptr;
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uint32_t v1, v2; |
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v1 = ldl_le_p(p); |
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v2 = ldl_le_p(p + 4);
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return v1 | ((uint64_t)v2 << 32); |
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} |
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static inline void stw_le_p(void *ptr, int v) |
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{ |
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#ifdef _ARCH_PPC
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__asm__ __volatile__ ("sthbrx %1,0,%2" : "=m" (*(uint16_t *)ptr) : "r" (v), "r" (ptr)); |
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#else
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uint8_t *p = ptr; |
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p[0] = v;
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p[1] = v >> 8; |
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#endif
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} |
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static inline void stl_le_p(void *ptr, int v) |
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{ |
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#ifdef _ARCH_PPC
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__asm__ __volatile__ ("stwbrx %1,0,%2" : "=m" (*(uint32_t *)ptr) : "r" (v), "r" (ptr)); |
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#else
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uint8_t *p = ptr; |
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p[0] = v;
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p[1] = v >> 8; |
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p[2] = v >> 16; |
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p[3] = v >> 24; |
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#endif
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} |
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static inline void stq_le_p(void *ptr, uint64_t v) |
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{ |
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uint8_t *p = ptr; |
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stl_le_p(p, (uint32_t)v); |
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stl_le_p(p + 4, v >> 32); |
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} |
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/* float access */
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static inline float32 ldfl_le_p(const void *ptr) |
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{ |
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union {
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float32 f; |
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uint32_t i; |
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} u; |
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u.i = ldl_le_p(ptr); |
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return u.f;
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} |
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static inline void stfl_le_p(void *ptr, float32 v) |
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{ |
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union {
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float32 f; |
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uint32_t i; |
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} u; |
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u.f = v; |
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stl_le_p(ptr, u.i); |
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} |
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static inline float64 ldfq_le_p(const void *ptr) |
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{ |
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CPU_DoubleU u; |
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u.l.lower = ldl_le_p(ptr); |
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u.l.upper = ldl_le_p(ptr + 4);
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return u.d;
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} |
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static inline void stfq_le_p(void *ptr, float64 v) |
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{ |
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CPU_DoubleU u; |
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u.d = v; |
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stl_le_p(ptr, u.l.lower); |
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stl_le_p(ptr + 4, u.l.upper);
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} |
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#else
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static inline int lduw_le_p(const void *ptr) |
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{ |
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return *(uint16_t *)ptr;
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} |
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static inline int ldsw_le_p(const void *ptr) |
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{ |
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return *(int16_t *)ptr;
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} |
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static inline int ldl_le_p(const void *ptr) |
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{ |
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return *(uint32_t *)ptr;
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} |
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static inline uint64_t ldq_le_p(const void *ptr) |
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{ |
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return *(uint64_t *)ptr;
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} |
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static inline void stw_le_p(void *ptr, int v) |
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{ |
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*(uint16_t *)ptr = v; |
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} |
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static inline void stl_le_p(void *ptr, int v) |
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{ |
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*(uint32_t *)ptr = v; |
380 |
} |
381 |
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static inline void stq_le_p(void *ptr, uint64_t v) |
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{ |
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*(uint64_t *)ptr = v; |
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} |
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/* float access */
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static inline float32 ldfl_le_p(const void *ptr) |
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{ |
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return *(float32 *)ptr;
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} |
393 |
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static inline float64 ldfq_le_p(const void *ptr) |
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{ |
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return *(float64 *)ptr;
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} |
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static inline void stfl_le_p(void *ptr, float32 v) |
400 |
{ |
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*(float32 *)ptr = v; |
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} |
403 |
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static inline void stfq_le_p(void *ptr, float64 v) |
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{ |
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*(float64 *)ptr = v; |
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} |
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#endif
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#if !defined(HOST_WORDS_BIGENDIAN) || defined(WORDS_ALIGNED)
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static inline int lduw_be_p(const void *ptr) |
413 |
{ |
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#if defined(__i386__)
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int val;
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asm volatile ("movzwl %1, %0\n" |
417 |
"xchgb %b0, %h0\n"
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: "=q" (val)
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: "m" (*(uint16_t *)ptr));
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return val;
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#else
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const uint8_t *b = ptr;
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return ((b[0] << 8) | b[1]); |
424 |
#endif
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425 |
} |
426 |
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static inline int ldsw_be_p(const void *ptr) |
428 |
{ |
429 |
#if defined(__i386__)
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int val;
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asm volatile ("movzwl %1, %0\n" |
432 |
"xchgb %b0, %h0\n"
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: "=q" (val)
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: "m" (*(uint16_t *)ptr));
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return (int16_t)val;
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#else
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const uint8_t *b = ptr;
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return (int16_t)((b[0] << 8) | b[1]); |
439 |
#endif
|
440 |
} |
441 |
|
442 |
static inline int ldl_be_p(const void *ptr) |
443 |
{ |
444 |
#if defined(__i386__) || defined(__x86_64__)
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int val;
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asm volatile ("movl %1, %0\n" |
447 |
"bswap %0\n"
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: "=r" (val)
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: "m" (*(uint32_t *)ptr));
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return val;
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451 |
#else
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const uint8_t *b = ptr;
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return (b[0] << 24) | (b[1] << 16) | (b[2] << 8) | b[3]; |
454 |
#endif
|
455 |
} |
456 |
|
457 |
static inline uint64_t ldq_be_p(const void *ptr) |
458 |
{ |
459 |
uint32_t a,b; |
460 |
a = ldl_be_p(ptr); |
461 |
b = ldl_be_p((uint8_t *)ptr + 4);
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return (((uint64_t)a<<32)|b); |
463 |
} |
464 |
|
465 |
static inline void stw_be_p(void *ptr, int v) |
466 |
{ |
467 |
#if defined(__i386__)
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asm volatile ("xchgb %b0, %h0\n" |
469 |
"movw %w0, %1\n"
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: "=q" (v)
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471 |
: "m" (*(uint16_t *)ptr), "0" (v)); |
472 |
#else
|
473 |
uint8_t *d = (uint8_t *) ptr; |
474 |
d[0] = v >> 8; |
475 |
d[1] = v;
|
476 |
#endif
|
477 |
} |
478 |
|
479 |
static inline void stl_be_p(void *ptr, int v) |
480 |
{ |
481 |
#if defined(__i386__) || defined(__x86_64__)
|
482 |
asm volatile ("bswap %0\n" |
483 |
"movl %0, %1\n"
|
484 |
: "=r" (v)
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485 |
: "m" (*(uint32_t *)ptr), "0" (v)); |
486 |
#else
|
487 |
uint8_t *d = (uint8_t *) ptr; |
488 |
d[0] = v >> 24; |
489 |
d[1] = v >> 16; |
490 |
d[2] = v >> 8; |
491 |
d[3] = v;
|
492 |
#endif
|
493 |
} |
494 |
|
495 |
static inline void stq_be_p(void *ptr, uint64_t v) |
496 |
{ |
497 |
stl_be_p(ptr, v >> 32);
|
498 |
stl_be_p((uint8_t *)ptr + 4, v);
|
499 |
} |
500 |
|
501 |
/* float access */
|
502 |
|
503 |
static inline float32 ldfl_be_p(const void *ptr) |
504 |
{ |
505 |
union {
|
506 |
float32 f; |
507 |
uint32_t i; |
508 |
} u; |
509 |
u.i = ldl_be_p(ptr); |
510 |
return u.f;
|
511 |
} |
512 |
|
513 |
static inline void stfl_be_p(void *ptr, float32 v) |
514 |
{ |
515 |
union {
|
516 |
float32 f; |
517 |
uint32_t i; |
518 |
} u; |
519 |
u.f = v; |
520 |
stl_be_p(ptr, u.i); |
521 |
} |
522 |
|
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static inline float64 ldfq_be_p(const void *ptr) |
524 |
{ |
525 |
CPU_DoubleU u; |
526 |
u.l.upper = ldl_be_p(ptr); |
527 |
u.l.lower = ldl_be_p((uint8_t *)ptr + 4);
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return u.d;
|
529 |
} |
530 |
|
531 |
static inline void stfq_be_p(void *ptr, float64 v) |
532 |
{ |
533 |
CPU_DoubleU u; |
534 |
u.d = v; |
535 |
stl_be_p(ptr, u.l.upper); |
536 |
stl_be_p((uint8_t *)ptr + 4, u.l.lower);
|
537 |
} |
538 |
|
539 |
#else
|
540 |
|
541 |
static inline int lduw_be_p(const void *ptr) |
542 |
{ |
543 |
return *(uint16_t *)ptr;
|
544 |
} |
545 |
|
546 |
static inline int ldsw_be_p(const void *ptr) |
547 |
{ |
548 |
return *(int16_t *)ptr;
|
549 |
} |
550 |
|
551 |
static inline int ldl_be_p(const void *ptr) |
552 |
{ |
553 |
return *(uint32_t *)ptr;
|
554 |
} |
555 |
|
556 |
static inline uint64_t ldq_be_p(const void *ptr) |
557 |
{ |
558 |
return *(uint64_t *)ptr;
|
559 |
} |
560 |
|
561 |
static inline void stw_be_p(void *ptr, int v) |
562 |
{ |
563 |
*(uint16_t *)ptr = v; |
564 |
} |
565 |
|
566 |
static inline void stl_be_p(void *ptr, int v) |
567 |
{ |
568 |
*(uint32_t *)ptr = v; |
569 |
} |
570 |
|
571 |
static inline void stq_be_p(void *ptr, uint64_t v) |
572 |
{ |
573 |
*(uint64_t *)ptr = v; |
574 |
} |
575 |
|
576 |
/* float access */
|
577 |
|
578 |
static inline float32 ldfl_be_p(const void *ptr) |
579 |
{ |
580 |
return *(float32 *)ptr;
|
581 |
} |
582 |
|
583 |
static inline float64 ldfq_be_p(const void *ptr) |
584 |
{ |
585 |
return *(float64 *)ptr;
|
586 |
} |
587 |
|
588 |
static inline void stfl_be_p(void *ptr, float32 v) |
589 |
{ |
590 |
*(float32 *)ptr = v; |
591 |
} |
592 |
|
593 |
static inline void stfq_be_p(void *ptr, float64 v) |
594 |
{ |
595 |
*(float64 *)ptr = v; |
596 |
} |
597 |
|
598 |
#endif
|
599 |
|
600 |
/* target CPU memory access functions */
|
601 |
#if defined(TARGET_WORDS_BIGENDIAN)
|
602 |
#define lduw_p(p) lduw_be_p(p)
|
603 |
#define ldsw_p(p) ldsw_be_p(p)
|
604 |
#define ldl_p(p) ldl_be_p(p)
|
605 |
#define ldq_p(p) ldq_be_p(p)
|
606 |
#define ldfl_p(p) ldfl_be_p(p)
|
607 |
#define ldfq_p(p) ldfq_be_p(p)
|
608 |
#define stw_p(p, v) stw_be_p(p, v)
|
609 |
#define stl_p(p, v) stl_be_p(p, v)
|
610 |
#define stq_p(p, v) stq_be_p(p, v)
|
611 |
#define stfl_p(p, v) stfl_be_p(p, v)
|
612 |
#define stfq_p(p, v) stfq_be_p(p, v)
|
613 |
#else
|
614 |
#define lduw_p(p) lduw_le_p(p)
|
615 |
#define ldsw_p(p) ldsw_le_p(p)
|
616 |
#define ldl_p(p) ldl_le_p(p)
|
617 |
#define ldq_p(p) ldq_le_p(p)
|
618 |
#define ldfl_p(p) ldfl_le_p(p)
|
619 |
#define ldfq_p(p) ldfq_le_p(p)
|
620 |
#define stw_p(p, v) stw_le_p(p, v)
|
621 |
#define stl_p(p, v) stl_le_p(p, v)
|
622 |
#define stq_p(p, v) stq_le_p(p, v)
|
623 |
#define stfl_p(p, v) stfl_le_p(p, v)
|
624 |
#define stfq_p(p, v) stfq_le_p(p, v)
|
625 |
#endif
|
626 |
|
627 |
/* MMU memory access macros */
|
628 |
|
629 |
#if defined(CONFIG_USER_ONLY)
|
630 |
#include <assert.h> |
631 |
#include "qemu-types.h" |
632 |
|
633 |
/* On some host systems the guest address space is reserved on the host.
|
634 |
* This allows the guest address space to be offset to a convenient location.
|
635 |
*/
|
636 |
#if defined(CONFIG_USE_GUEST_BASE)
|
637 |
extern unsigned long guest_base; |
638 |
extern int have_guest_base; |
639 |
extern unsigned long reserved_va; |
640 |
#define GUEST_BASE guest_base
|
641 |
#define RESERVED_VA reserved_va
|
642 |
#else
|
643 |
#define GUEST_BASE 0ul |
644 |
#define RESERVED_VA 0ul |
645 |
#endif
|
646 |
|
647 |
/* All direct uses of g2h and h2g need to go away for usermode softmmu. */
|
648 |
#define g2h(x) ((void *)((unsigned long)(x) + GUEST_BASE)) |
649 |
|
650 |
#if HOST_LONG_BITS <= TARGET_VIRT_ADDR_SPACE_BITS
|
651 |
#define h2g_valid(x) 1 |
652 |
#else
|
653 |
#define h2g_valid(x) ({ \
|
654 |
unsigned long __guest = (unsigned long)(x) - GUEST_BASE; \ |
655 |
__guest < (1ul << TARGET_VIRT_ADDR_SPACE_BITS); \
|
656 |
}) |
657 |
#endif
|
658 |
|
659 |
#define h2g(x) ({ \
|
660 |
unsigned long __ret = (unsigned long)(x) - GUEST_BASE; \ |
661 |
/* Check if given address fits target address space */ \
|
662 |
assert(h2g_valid(x)); \ |
663 |
(abi_ulong)__ret; \ |
664 |
}) |
665 |
|
666 |
#define saddr(x) g2h(x)
|
667 |
#define laddr(x) g2h(x)
|
668 |
|
669 |
#else /* !CONFIG_USER_ONLY */ |
670 |
/* NOTE: we use double casts if pointers and target_ulong have
|
671 |
different sizes */
|
672 |
#define saddr(x) (uint8_t *)(long)(x) |
673 |
#define laddr(x) (uint8_t *)(long)(x) |
674 |
#endif
|
675 |
|
676 |
#define ldub_raw(p) ldub_p(laddr((p)))
|
677 |
#define ldsb_raw(p) ldsb_p(laddr((p)))
|
678 |
#define lduw_raw(p) lduw_p(laddr((p)))
|
679 |
#define ldsw_raw(p) ldsw_p(laddr((p)))
|
680 |
#define ldl_raw(p) ldl_p(laddr((p)))
|
681 |
#define ldq_raw(p) ldq_p(laddr((p)))
|
682 |
#define ldfl_raw(p) ldfl_p(laddr((p)))
|
683 |
#define ldfq_raw(p) ldfq_p(laddr((p)))
|
684 |
#define stb_raw(p, v) stb_p(saddr((p)), v)
|
685 |
#define stw_raw(p, v) stw_p(saddr((p)), v)
|
686 |
#define stl_raw(p, v) stl_p(saddr((p)), v)
|
687 |
#define stq_raw(p, v) stq_p(saddr((p)), v)
|
688 |
#define stfl_raw(p, v) stfl_p(saddr((p)), v)
|
689 |
#define stfq_raw(p, v) stfq_p(saddr((p)), v)
|
690 |
|
691 |
|
692 |
#if defined(CONFIG_USER_ONLY)
|
693 |
|
694 |
/* if user mode, no other memory access functions */
|
695 |
#define ldub(p) ldub_raw(p)
|
696 |
#define ldsb(p) ldsb_raw(p)
|
697 |
#define lduw(p) lduw_raw(p)
|
698 |
#define ldsw(p) ldsw_raw(p)
|
699 |
#define ldl(p) ldl_raw(p)
|
700 |
#define ldq(p) ldq_raw(p)
|
701 |
#define ldfl(p) ldfl_raw(p)
|
702 |
#define ldfq(p) ldfq_raw(p)
|
703 |
#define stb(p, v) stb_raw(p, v)
|
704 |
#define stw(p, v) stw_raw(p, v)
|
705 |
#define stl(p, v) stl_raw(p, v)
|
706 |
#define stq(p, v) stq_raw(p, v)
|
707 |
#define stfl(p, v) stfl_raw(p, v)
|
708 |
#define stfq(p, v) stfq_raw(p, v)
|
709 |
|
710 |
#define ldub_code(p) ldub_raw(p)
|
711 |
#define ldsb_code(p) ldsb_raw(p)
|
712 |
#define lduw_code(p) lduw_raw(p)
|
713 |
#define ldsw_code(p) ldsw_raw(p)
|
714 |
#define ldl_code(p) ldl_raw(p)
|
715 |
#define ldq_code(p) ldq_raw(p)
|
716 |
|
717 |
#define ldub_kernel(p) ldub_raw(p)
|
718 |
#define ldsb_kernel(p) ldsb_raw(p)
|
719 |
#define lduw_kernel(p) lduw_raw(p)
|
720 |
#define ldsw_kernel(p) ldsw_raw(p)
|
721 |
#define ldl_kernel(p) ldl_raw(p)
|
722 |
#define ldq_kernel(p) ldq_raw(p)
|
723 |
#define ldfl_kernel(p) ldfl_raw(p)
|
724 |
#define ldfq_kernel(p) ldfq_raw(p)
|
725 |
#define stb_kernel(p, v) stb_raw(p, v)
|
726 |
#define stw_kernel(p, v) stw_raw(p, v)
|
727 |
#define stl_kernel(p, v) stl_raw(p, v)
|
728 |
#define stq_kernel(p, v) stq_raw(p, v)
|
729 |
#define stfl_kernel(p, v) stfl_raw(p, v)
|
730 |
#define stfq_kernel(p, vt) stfq_raw(p, v)
|
731 |
|
732 |
#endif /* defined(CONFIG_USER_ONLY) */ |
733 |
|
734 |
/* page related stuff */
|
735 |
|
736 |
#define TARGET_PAGE_SIZE (1 << TARGET_PAGE_BITS) |
737 |
#define TARGET_PAGE_MASK ~(TARGET_PAGE_SIZE - 1) |
738 |
#define TARGET_PAGE_ALIGN(addr) (((addr) + TARGET_PAGE_SIZE - 1) & TARGET_PAGE_MASK) |
739 |
|
740 |
/* ??? These should be the larger of unsigned long and target_ulong. */
|
741 |
extern unsigned long qemu_real_host_page_size; |
742 |
extern unsigned long qemu_host_page_bits; |
743 |
extern unsigned long qemu_host_page_size; |
744 |
extern unsigned long qemu_host_page_mask; |
745 |
|
746 |
#define HOST_PAGE_ALIGN(addr) (((addr) + qemu_host_page_size - 1) & qemu_host_page_mask) |
747 |
|
748 |
/* same as PROT_xxx */
|
749 |
#define PAGE_READ 0x0001 |
750 |
#define PAGE_WRITE 0x0002 |
751 |
#define PAGE_EXEC 0x0004 |
752 |
#define PAGE_BITS (PAGE_READ | PAGE_WRITE | PAGE_EXEC)
|
753 |
#define PAGE_VALID 0x0008 |
754 |
/* original state of the write flag (used when tracking self-modifying
|
755 |
code */
|
756 |
#define PAGE_WRITE_ORG 0x0010 |
757 |
#if defined(CONFIG_BSD) && defined(CONFIG_USER_ONLY)
|
758 |
/* FIXME: Code that sets/uses this is broken and needs to go away. */
|
759 |
#define PAGE_RESERVED 0x0020 |
760 |
#endif
|
761 |
|
762 |
#if defined(CONFIG_USER_ONLY)
|
763 |
void page_dump(FILE *f);
|
764 |
|
765 |
typedef int (*walk_memory_regions_fn)(void *, abi_ulong, |
766 |
abi_ulong, unsigned long); |
767 |
int walk_memory_regions(void *, walk_memory_regions_fn); |
768 |
|
769 |
int page_get_flags(target_ulong address);
|
770 |
void page_set_flags(target_ulong start, target_ulong end, int flags); |
771 |
int page_check_range(target_ulong start, target_ulong len, int flags); |
772 |
#endif
|
773 |
|
774 |
CPUState *cpu_copy(CPUState *env); |
775 |
CPUState *qemu_get_cpu(int cpu);
|
776 |
|
777 |
#define CPU_DUMP_CODE 0x00010000 |
778 |
|
779 |
void cpu_dump_state(CPUState *env, FILE *f, fprintf_function cpu_fprintf,
|
780 |
int flags);
|
781 |
void cpu_dump_statistics(CPUState *env, FILE *f, fprintf_function cpu_fprintf,
|
782 |
int flags);
|
783 |
|
784 |
void QEMU_NORETURN cpu_abort(CPUState *env, const char *fmt, ...) |
785 |
GCC_FMT_ATTR(2, 3); |
786 |
extern CPUState *first_cpu;
|
787 |
extern CPUState *cpu_single_env;
|
788 |
|
789 |
/* Flags for use in ENV->INTERRUPT_PENDING.
|
790 |
|
791 |
The numbers assigned here are non-sequential in order to preserve
|
792 |
binary compatibility with the vmstate dump. Bit 0 (0x0001) was
|
793 |
previously used for CPU_INTERRUPT_EXIT, and is cleared when loading
|
794 |
the vmstate dump. */
|
795 |
|
796 |
/* External hardware interrupt pending. This is typically used for
|
797 |
interrupts from devices. */
|
798 |
#define CPU_INTERRUPT_HARD 0x0002 |
799 |
|
800 |
/* Exit the current TB. This is typically used when some system-level device
|
801 |
makes some change to the memory mapping. E.g. the a20 line change. */
|
802 |
#define CPU_INTERRUPT_EXITTB 0x0004 |
803 |
|
804 |
/* Halt the CPU. */
|
805 |
#define CPU_INTERRUPT_HALT 0x0020 |
806 |
|
807 |
/* Debug event pending. */
|
808 |
#define CPU_INTERRUPT_DEBUG 0x0080 |
809 |
|
810 |
/* Several target-specific external hardware interrupts. Each target/cpu.h
|
811 |
should define proper names based on these defines. */
|
812 |
#define CPU_INTERRUPT_TGT_EXT_0 0x0008 |
813 |
#define CPU_INTERRUPT_TGT_EXT_1 0x0010 |
814 |
#define CPU_INTERRUPT_TGT_EXT_2 0x0040 |
815 |
#define CPU_INTERRUPT_TGT_EXT_3 0x0200 |
816 |
#define CPU_INTERRUPT_TGT_EXT_4 0x1000 |
817 |
|
818 |
/* Several target-specific internal interrupts. These differ from the
|
819 |
preceeding target-specific interrupts in that they are intended to
|
820 |
originate from within the cpu itself, typically in response to some
|
821 |
instruction being executed. These, therefore, are not masked while
|
822 |
single-stepping within the debugger. */
|
823 |
#define CPU_INTERRUPT_TGT_INT_0 0x0100 |
824 |
#define CPU_INTERRUPT_TGT_INT_1 0x0400 |
825 |
#define CPU_INTERRUPT_TGT_INT_2 0x0800 |
826 |
|
827 |
/* First unused bit: 0x2000. */
|
828 |
|
829 |
/* The set of all bits that should be masked when single-stepping. */
|
830 |
#define CPU_INTERRUPT_SSTEP_MASK \
|
831 |
(CPU_INTERRUPT_HARD \ |
832 |
| CPU_INTERRUPT_TGT_EXT_0 \ |
833 |
| CPU_INTERRUPT_TGT_EXT_1 \ |
834 |
| CPU_INTERRUPT_TGT_EXT_2 \ |
835 |
| CPU_INTERRUPT_TGT_EXT_3 \ |
836 |
| CPU_INTERRUPT_TGT_EXT_4) |
837 |
|
838 |
#ifndef CONFIG_USER_ONLY
|
839 |
typedef void (*CPUInterruptHandler)(CPUState *, int); |
840 |
|
841 |
extern CPUInterruptHandler cpu_interrupt_handler;
|
842 |
|
843 |
static inline void cpu_interrupt(CPUState *s, int mask) |
844 |
{ |
845 |
cpu_interrupt_handler(s, mask); |
846 |
} |
847 |
#else /* USER_ONLY */ |
848 |
void cpu_interrupt(CPUState *env, int mask); |
849 |
#endif /* USER_ONLY */ |
850 |
|
851 |
void cpu_reset_interrupt(CPUState *env, int mask); |
852 |
|
853 |
void cpu_exit(CPUState *s);
|
854 |
|
855 |
int qemu_cpu_has_work(CPUState *env);
|
856 |
|
857 |
/* Breakpoint/watchpoint flags */
|
858 |
#define BP_MEM_READ 0x01 |
859 |
#define BP_MEM_WRITE 0x02 |
860 |
#define BP_MEM_ACCESS (BP_MEM_READ | BP_MEM_WRITE)
|
861 |
#define BP_STOP_BEFORE_ACCESS 0x04 |
862 |
#define BP_WATCHPOINT_HIT 0x08 |
863 |
#define BP_GDB 0x10 |
864 |
#define BP_CPU 0x20 |
865 |
|
866 |
int cpu_breakpoint_insert(CPUState *env, target_ulong pc, int flags, |
867 |
CPUBreakpoint **breakpoint); |
868 |
int cpu_breakpoint_remove(CPUState *env, target_ulong pc, int flags); |
869 |
void cpu_breakpoint_remove_by_ref(CPUState *env, CPUBreakpoint *breakpoint);
|
870 |
void cpu_breakpoint_remove_all(CPUState *env, int mask); |
871 |
int cpu_watchpoint_insert(CPUState *env, target_ulong addr, target_ulong len,
|
872 |
int flags, CPUWatchpoint **watchpoint);
|
873 |
int cpu_watchpoint_remove(CPUState *env, target_ulong addr,
|
874 |
target_ulong len, int flags);
|
875 |
void cpu_watchpoint_remove_by_ref(CPUState *env, CPUWatchpoint *watchpoint);
|
876 |
void cpu_watchpoint_remove_all(CPUState *env, int mask); |
877 |
|
878 |
#define SSTEP_ENABLE 0x1 /* Enable simulated HW single stepping */ |
879 |
#define SSTEP_NOIRQ 0x2 /* Do not use IRQ while single stepping */ |
880 |
#define SSTEP_NOTIMER 0x4 /* Do not Timers while single stepping */ |
881 |
|
882 |
void cpu_single_step(CPUState *env, int enabled); |
883 |
void cpu_reset(CPUState *s);
|
884 |
int cpu_is_stopped(CPUState *env);
|
885 |
void run_on_cpu(CPUState *env, void (*func)(void *data), void *data); |
886 |
|
887 |
#define CPU_LOG_TB_OUT_ASM (1 << 0) |
888 |
#define CPU_LOG_TB_IN_ASM (1 << 1) |
889 |
#define CPU_LOG_TB_OP (1 << 2) |
890 |
#define CPU_LOG_TB_OP_OPT (1 << 3) |
891 |
#define CPU_LOG_INT (1 << 4) |
892 |
#define CPU_LOG_EXEC (1 << 5) |
893 |
#define CPU_LOG_PCALL (1 << 6) |
894 |
#define CPU_LOG_IOPORT (1 << 7) |
895 |
#define CPU_LOG_TB_CPU (1 << 8) |
896 |
#define CPU_LOG_RESET (1 << 9) |
897 |
|
898 |
/* define log items */
|
899 |
typedef struct CPULogItem { |
900 |
int mask;
|
901 |
const char *name; |
902 |
const char *help; |
903 |
} CPULogItem; |
904 |
|
905 |
extern const CPULogItem cpu_log_items[]; |
906 |
|
907 |
void cpu_set_log(int log_flags); |
908 |
void cpu_set_log_filename(const char *filename); |
909 |
int cpu_str_to_log_mask(const char *str); |
910 |
|
911 |
#if !defined(CONFIG_USER_ONLY)
|
912 |
|
913 |
/* Return the physical page corresponding to a virtual one. Use it
|
914 |
only for debugging because no protection checks are done. Return -1
|
915 |
if no page found. */
|
916 |
target_phys_addr_t cpu_get_phys_page_debug(CPUState *env, target_ulong addr); |
917 |
|
918 |
/* memory API */
|
919 |
|
920 |
extern int phys_ram_fd; |
921 |
extern ram_addr_t ram_size;
|
922 |
|
923 |
/* RAM is pre-allocated and passed into qemu_ram_alloc_from_ptr */
|
924 |
#define RAM_PREALLOC_MASK (1 << 0) |
925 |
|
926 |
typedef struct RAMBlock { |
927 |
uint8_t *host; |
928 |
ram_addr_t offset; |
929 |
ram_addr_t length; |
930 |
uint32_t flags; |
931 |
char idstr[256]; |
932 |
QLIST_ENTRY(RAMBlock) next; |
933 |
#if defined(__linux__) && !defined(TARGET_S390X)
|
934 |
int fd;
|
935 |
#endif
|
936 |
} RAMBlock; |
937 |
|
938 |
typedef struct RAMList { |
939 |
uint8_t *phys_dirty; |
940 |
QLIST_HEAD(ram, RAMBlock) blocks; |
941 |
} RAMList; |
942 |
extern RAMList ram_list;
|
943 |
|
944 |
extern const char *mem_path; |
945 |
extern int mem_prealloc; |
946 |
|
947 |
/* physical memory access */
|
948 |
|
949 |
/* MMIO pages are identified by a combination of an IO device index and
|
950 |
3 flags. The ROMD code stores the page ram offset in iotlb entry,
|
951 |
so only a limited number of ids are avaiable. */
|
952 |
|
953 |
#define IO_MEM_NB_ENTRIES (1 << (TARGET_PAGE_BITS - IO_MEM_SHIFT)) |
954 |
|
955 |
/* Flags stored in the low bits of the TLB virtual address. These are
|
956 |
defined so that fast path ram access is all zeros. */
|
957 |
/* Zero if TLB entry is valid. */
|
958 |
#define TLB_INVALID_MASK (1 << 3) |
959 |
/* Set if TLB entry references a clean RAM page. The iotlb entry will
|
960 |
contain the page physical address. */
|
961 |
#define TLB_NOTDIRTY (1 << 4) |
962 |
/* Set if TLB entry is an IO callback. */
|
963 |
#define TLB_MMIO (1 << 5) |
964 |
|
965 |
#define VGA_DIRTY_FLAG 0x01 |
966 |
#define CODE_DIRTY_FLAG 0x02 |
967 |
#define MIGRATION_DIRTY_FLAG 0x08 |
968 |
|
969 |
/* read dirty bit (return 0 or 1) */
|
970 |
static inline int cpu_physical_memory_is_dirty(ram_addr_t addr) |
971 |
{ |
972 |
return ram_list.phys_dirty[addr >> TARGET_PAGE_BITS] == 0xff; |
973 |
} |
974 |
|
975 |
static inline int cpu_physical_memory_get_dirty_flags(ram_addr_t addr) |
976 |
{ |
977 |
return ram_list.phys_dirty[addr >> TARGET_PAGE_BITS];
|
978 |
} |
979 |
|
980 |
static inline int cpu_physical_memory_get_dirty(ram_addr_t addr, |
981 |
int dirty_flags)
|
982 |
{ |
983 |
return ram_list.phys_dirty[addr >> TARGET_PAGE_BITS] & dirty_flags;
|
984 |
} |
985 |
|
986 |
static inline void cpu_physical_memory_set_dirty(ram_addr_t addr) |
987 |
{ |
988 |
ram_list.phys_dirty[addr >> TARGET_PAGE_BITS] = 0xff;
|
989 |
} |
990 |
|
991 |
static inline int cpu_physical_memory_set_dirty_flags(ram_addr_t addr, |
992 |
int dirty_flags)
|
993 |
{ |
994 |
return ram_list.phys_dirty[addr >> TARGET_PAGE_BITS] |= dirty_flags;
|
995 |
} |
996 |
|
997 |
static inline void cpu_physical_memory_mask_dirty_range(ram_addr_t start, |
998 |
int length,
|
999 |
int dirty_flags)
|
1000 |
{ |
1001 |
int i, mask, len;
|
1002 |
uint8_t *p; |
1003 |
|
1004 |
len = length >> TARGET_PAGE_BITS; |
1005 |
mask = ~dirty_flags; |
1006 |
p = ram_list.phys_dirty + (start >> TARGET_PAGE_BITS); |
1007 |
for (i = 0; i < len; i++) { |
1008 |
p[i] &= mask; |
1009 |
} |
1010 |
} |
1011 |
|
1012 |
void cpu_physical_memory_reset_dirty(ram_addr_t start, ram_addr_t end,
|
1013 |
int dirty_flags);
|
1014 |
void cpu_tlb_update_dirty(CPUState *env);
|
1015 |
|
1016 |
int cpu_physical_memory_set_dirty_tracking(int enable); |
1017 |
|
1018 |
int cpu_physical_memory_get_dirty_tracking(void); |
1019 |
|
1020 |
int cpu_physical_sync_dirty_bitmap(target_phys_addr_t start_addr,
|
1021 |
target_phys_addr_t end_addr); |
1022 |
|
1023 |
int cpu_physical_log_start(target_phys_addr_t start_addr,
|
1024 |
ram_addr_t size); |
1025 |
|
1026 |
int cpu_physical_log_stop(target_phys_addr_t start_addr,
|
1027 |
ram_addr_t size); |
1028 |
|
1029 |
void dump_exec_info(FILE *f, fprintf_function cpu_fprintf);
|
1030 |
#endif /* !CONFIG_USER_ONLY */ |
1031 |
|
1032 |
int cpu_memory_rw_debug(CPUState *env, target_ulong addr,
|
1033 |
uint8_t *buf, int len, int is_write); |
1034 |
|
1035 |
#endif /* CPU_ALL_H */ |