1152 lines
29 KiB
C
1152 lines
29 KiB
C
/*
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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, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston MA 02110-1301 USA
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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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#if defined(__arm__) || defined(__sparc__) || defined(__mips__) || defined(__hppa__)
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#define WORDS_ALIGNED
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#endif
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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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* 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 "bswap.h"
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#include "softfloat.h"
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#if defined(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(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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#ifdef TARGET_SPARC
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typedef union {
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float128 q;
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#if defined(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 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(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;
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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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*(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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}
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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)
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{
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*(float32 *)ptr = v;
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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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*(float64 *)ptr = v;
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}
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#endif
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#if !defined(WORDS_BIGENDIAN) || defined(WORDS_ALIGNED)
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static inline int lduw_be_p(const void *ptr)
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{
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#if defined(__i386__)
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int val;
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asm volatile ("movzwl %1, %0\n"
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"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]);
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#endif
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}
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static inline int ldsw_be_p(const void *ptr)
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{
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#if defined(__i386__)
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int val;
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asm volatile ("movzwl %1, %0\n"
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"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]);
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#endif
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}
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static inline int ldl_be_p(const void *ptr)
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{
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#if defined(__i386__) || defined(__x86_64__)
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int val;
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asm volatile ("movl %1, %0\n"
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"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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#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];
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#endif
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}
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static inline uint64_t ldq_be_p(const void *ptr)
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{
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uint32_t a,b;
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a = ldl_be_p(ptr);
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b = ldl_be_p((uint8_t *)ptr + 4);
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return (((uint64_t)a<<32)|b);
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}
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static inline void stw_be_p(void *ptr, int v)
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{
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#if defined(__i386__)
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asm volatile ("xchgb %b0, %h0\n"
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"movw %w0, %1\n"
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: "=q" (v)
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: "m" (*(uint16_t *)ptr), "0" (v));
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#else
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uint8_t *d = (uint8_t *) ptr;
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d[0] = v >> 8;
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d[1] = v;
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#endif
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}
|
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static inline void stl_be_p(void *ptr, int v)
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{
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#if defined(__i386__) || defined(__x86_64__)
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asm volatile ("bswap %0\n"
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"movl %0, %1\n"
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: "=r" (v)
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: "m" (*(uint32_t *)ptr), "0" (v));
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#else
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uint8_t *d = (uint8_t *) ptr;
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d[0] = v >> 24;
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d[1] = v >> 16;
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d[2] = v >> 8;
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d[3] = v;
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#endif
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}
|
|
|
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static inline void stq_be_p(void *ptr, uint64_t v)
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{
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stl_be_p(ptr, v >> 32);
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stl_be_p((uint8_t *)ptr + 4, v);
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}
|
|
|
|
/* float access */
|
|
|
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static inline float32 ldfl_be_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;
|
|
} u;
|
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u.i = ldl_be_p(ptr);
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return u.f;
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|
}
|
|
|
|
static inline void stfl_be_p(void *ptr, float32 v)
|
|
{
|
|
union {
|
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float32 f;
|
|
uint32_t i;
|
|
} u;
|
|
u.f = v;
|
|
stl_be_p(ptr, u.i);
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|
}
|
|
|
|
static inline float64 ldfq_be_p(const void *ptr)
|
|
{
|
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CPU_DoubleU u;
|
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u.l.upper = ldl_be_p(ptr);
|
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u.l.lower = ldl_be_p((uint8_t *)ptr + 4);
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return u.d;
|
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}
|
|
|
|
static inline void stfq_be_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_be_p(ptr, u.l.upper);
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stl_be_p((uint8_t *)ptr + 4, u.l.lower);
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}
|
|
|
|
#else
|
|
|
|
static inline int lduw_be_p(const void *ptr)
|
|
{
|
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return *(uint16_t *)ptr;
|
|
}
|
|
|
|
static inline int ldsw_be_p(const void *ptr)
|
|
{
|
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return *(int16_t *)ptr;
|
|
}
|
|
|
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static inline int ldl_be_p(const void *ptr)
|
|
{
|
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return *(uint32_t *)ptr;
|
|
}
|
|
|
|
static inline uint64_t ldq_be_p(const void *ptr)
|
|
{
|
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return *(uint64_t *)ptr;
|
|
}
|
|
|
|
static inline void stw_be_p(void *ptr, int v)
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|
{
|
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*(uint16_t *)ptr = v;
|
|
}
|
|
|
|
static inline void stl_be_p(void *ptr, int v)
|
|
{
|
|
*(uint32_t *)ptr = v;
|
|
}
|
|
|
|
static inline void stq_be_p(void *ptr, uint64_t v)
|
|
{
|
|
*(uint64_t *)ptr = v;
|
|
}
|
|
|
|
/* float access */
|
|
|
|
static inline float32 ldfl_be_p(const void *ptr)
|
|
{
|
|
return *(float32 *)ptr;
|
|
}
|
|
|
|
static inline float64 ldfq_be_p(const void *ptr)
|
|
{
|
|
return *(float64 *)ptr;
|
|
}
|
|
|
|
static inline void stfl_be_p(void *ptr, float32 v)
|
|
{
|
|
*(float32 *)ptr = v;
|
|
}
|
|
|
|
static inline void stfq_be_p(void *ptr, float64 v)
|
|
{
|
|
*(float64 *)ptr = v;
|
|
}
|
|
|
|
#endif
|
|
|
|
/* target CPU memory access functions */
|
|
#if defined(TARGET_WORDS_BIGENDIAN)
|
|
#define lduw_p(p) lduw_be_p(p)
|
|
#define ldsw_p(p) ldsw_be_p(p)
|
|
#define ldl_p(p) ldl_be_p(p)
|
|
#define ldq_p(p) ldq_be_p(p)
|
|
#define ldfl_p(p) ldfl_be_p(p)
|
|
#define ldfq_p(p) ldfq_be_p(p)
|
|
#define stw_p(p, v) stw_be_p(p, v)
|
|
#define stl_p(p, v) stl_be_p(p, v)
|
|
#define stq_p(p, v) stq_be_p(p, v)
|
|
#define stfl_p(p, v) stfl_be_p(p, v)
|
|
#define stfq_p(p, v) stfq_be_p(p, v)
|
|
#else
|
|
#define lduw_p(p) lduw_le_p(p)
|
|
#define ldsw_p(p) ldsw_le_p(p)
|
|
#define ldl_p(p) ldl_le_p(p)
|
|
#define ldq_p(p) ldq_le_p(p)
|
|
#define ldfl_p(p) ldfl_le_p(p)
|
|
#define ldfq_p(p) ldfq_le_p(p)
|
|
#define stw_p(p, v) stw_le_p(p, v)
|
|
#define stl_p(p, v) stl_le_p(p, v)
|
|
#define stq_p(p, v) stq_le_p(p, v)
|
|
#define stfl_p(p, v) stfl_le_p(p, v)
|
|
#define stfq_p(p, v) stfq_le_p(p, v)
|
|
#endif
|
|
|
|
/* MMU memory access macros */
|
|
|
|
#if defined(CONFIG_USER_ONLY)
|
|
#include <assert.h>
|
|
#include "qemu-types.h"
|
|
|
|
/* On some host systems the guest address space is reserved on the host.
|
|
* This allows the guest address space to be offset to a convenient location.
|
|
*/
|
|
//#define GUEST_BASE 0x20000000
|
|
#define GUEST_BASE 0
|
|
|
|
/* All direct uses of g2h and h2g need to go away for usermode softmmu. */
|
|
#define g2h(x) ((void *)((unsigned long)(x) + GUEST_BASE))
|
|
#define h2g(x) ({ \
|
|
unsigned long __ret = (unsigned long)(x) - GUEST_BASE; \
|
|
/* Check if given address fits target address space */ \
|
|
assert(__ret == (abi_ulong)__ret); \
|
|
(abi_ulong)__ret; \
|
|
})
|
|
#define h2g_valid(x) ({ \
|
|
unsigned long __guest = (unsigned long)(x) - GUEST_BASE; \
|
|
(__guest == (abi_ulong)__guest); \
|
|
})
|
|
|
|
#define saddr(x) g2h(x)
|
|
#define laddr(x) g2h(x)
|
|
|
|
#else /* !CONFIG_USER_ONLY */
|
|
/* NOTE: we use double casts if pointers and target_ulong have
|
|
different sizes */
|
|
#define saddr(x) (uint8_t *)(long)(x)
|
|
#define laddr(x) (uint8_t *)(long)(x)
|
|
#endif
|
|
|
|
#define ldub_raw(p) ldub_p(laddr((p)))
|
|
#define ldsb_raw(p) ldsb_p(laddr((p)))
|
|
#define lduw_raw(p) lduw_p(laddr((p)))
|
|
#define ldsw_raw(p) ldsw_p(laddr((p)))
|
|
#define ldl_raw(p) ldl_p(laddr((p)))
|
|
#define ldq_raw(p) ldq_p(laddr((p)))
|
|
#define ldfl_raw(p) ldfl_p(laddr((p)))
|
|
#define ldfq_raw(p) ldfq_p(laddr((p)))
|
|
#define stb_raw(p, v) stb_p(saddr((p)), v)
|
|
#define stw_raw(p, v) stw_p(saddr((p)), v)
|
|
#define stl_raw(p, v) stl_p(saddr((p)), v)
|
|
#define stq_raw(p, v) stq_p(saddr((p)), v)
|
|
#define stfl_raw(p, v) stfl_p(saddr((p)), v)
|
|
#define stfq_raw(p, v) stfq_p(saddr((p)), v)
|
|
|
|
|
|
#if defined(CONFIG_USER_ONLY)
|
|
|
|
/* if user mode, no other memory access functions */
|
|
#define ldub(p) ldub_raw(p)
|
|
#define ldsb(p) ldsb_raw(p)
|
|
#define lduw(p) lduw_raw(p)
|
|
#define ldsw(p) ldsw_raw(p)
|
|
#define ldl(p) ldl_raw(p)
|
|
#define ldq(p) ldq_raw(p)
|
|
#define ldfl(p) ldfl_raw(p)
|
|
#define ldfq(p) ldfq_raw(p)
|
|
#define stb(p, v) stb_raw(p, v)
|
|
#define stw(p, v) stw_raw(p, v)
|
|
#define stl(p, v) stl_raw(p, v)
|
|
#define stq(p, v) stq_raw(p, v)
|
|
#define stfl(p, v) stfl_raw(p, v)
|
|
#define stfq(p, v) stfq_raw(p, v)
|
|
|
|
#define ldub_code(p) ldub_raw(p)
|
|
#define ldsb_code(p) ldsb_raw(p)
|
|
#define lduw_code(p) lduw_raw(p)
|
|
#define ldsw_code(p) ldsw_raw(p)
|
|
#define ldl_code(p) ldl_raw(p)
|
|
#define ldq_code(p) ldq_raw(p)
|
|
|
|
#define ldub_kernel(p) ldub_raw(p)
|
|
#define ldsb_kernel(p) ldsb_raw(p)
|
|
#define lduw_kernel(p) lduw_raw(p)
|
|
#define ldsw_kernel(p) ldsw_raw(p)
|
|
#define ldl_kernel(p) ldl_raw(p)
|
|
#define ldq_kernel(p) ldq_raw(p)
|
|
#define ldfl_kernel(p) ldfl_raw(p)
|
|
#define ldfq_kernel(p) ldfq_raw(p)
|
|
#define stb_kernel(p, v) stb_raw(p, v)
|
|
#define stw_kernel(p, v) stw_raw(p, v)
|
|
#define stl_kernel(p, v) stl_raw(p, v)
|
|
#define stq_kernel(p, v) stq_raw(p, v)
|
|
#define stfl_kernel(p, v) stfl_raw(p, v)
|
|
#define stfq_kernel(p, vt) stfq_raw(p, v)
|
|
|
|
#endif /* defined(CONFIG_USER_ONLY) */
|
|
|
|
/* page related stuff */
|
|
|
|
#define TARGET_PAGE_SIZE (1 << TARGET_PAGE_BITS)
|
|
#define TARGET_PAGE_MASK ~(TARGET_PAGE_SIZE - 1)
|
|
#define TARGET_PAGE_ALIGN(addr) (((addr) + TARGET_PAGE_SIZE - 1) & TARGET_PAGE_MASK)
|
|
|
|
/* ??? These should be the larger of unsigned long and target_ulong. */
|
|
extern unsigned long qemu_real_host_page_size;
|
|
extern unsigned long qemu_host_page_bits;
|
|
extern unsigned long qemu_host_page_size;
|
|
extern unsigned long qemu_host_page_mask;
|
|
|
|
#define HOST_PAGE_ALIGN(addr) (((addr) + qemu_host_page_size - 1) & qemu_host_page_mask)
|
|
|
|
/* same as PROT_xxx */
|
|
#define PAGE_READ 0x0001
|
|
#define PAGE_WRITE 0x0002
|
|
#define PAGE_EXEC 0x0004
|
|
#define PAGE_BITS (PAGE_READ | PAGE_WRITE | PAGE_EXEC)
|
|
#define PAGE_VALID 0x0008
|
|
/* original state of the write flag (used when tracking self-modifying
|
|
code */
|
|
#define PAGE_WRITE_ORG 0x0010
|
|
#define PAGE_RESERVED 0x0020
|
|
|
|
void page_dump(FILE *f);
|
|
int page_get_flags(target_ulong address);
|
|
void page_set_flags(target_ulong start, target_ulong end, int flags);
|
|
int page_check_range(target_ulong start, target_ulong len, int flags);
|
|
|
|
void cpu_exec_init_all(unsigned long tb_size);
|
|
CPUState *cpu_copy(CPUState *env);
|
|
|
|
void cpu_dump_state(CPUState *env, FILE *f,
|
|
int (*cpu_fprintf)(FILE *f, const char *fmt, ...),
|
|
int flags);
|
|
void cpu_dump_statistics (CPUState *env, FILE *f,
|
|
int (*cpu_fprintf)(FILE *f, const char *fmt, ...),
|
|
int flags);
|
|
|
|
void QEMU_NORETURN cpu_abort(CPUState *env, const char *fmt, ...)
|
|
__attribute__ ((__format__ (__printf__, 2, 3)));
|
|
extern CPUState *first_cpu;
|
|
extern CPUState *cpu_single_env;
|
|
extern int64_t qemu_icount;
|
|
extern int use_icount;
|
|
|
|
#define CPU_INTERRUPT_HARD 0x02 /* hardware interrupt pending */
|
|
#define CPU_INTERRUPT_EXITTB 0x04 /* exit the current TB (use for x86 a20 case) */
|
|
#define CPU_INTERRUPT_TIMER 0x08 /* internal timer exception pending */
|
|
#define CPU_INTERRUPT_FIQ 0x10 /* Fast interrupt pending. */
|
|
#define CPU_INTERRUPT_HALT 0x20 /* CPU halt wanted */
|
|
#define CPU_INTERRUPT_SMI 0x40 /* (x86 only) SMI interrupt pending */
|
|
#define CPU_INTERRUPT_DEBUG 0x80 /* Debug event occured. */
|
|
#define CPU_INTERRUPT_VIRQ 0x100 /* virtual interrupt pending. */
|
|
#define CPU_INTERRUPT_NMI 0x200 /* NMI pending. */
|
|
|
|
void cpu_interrupt(CPUState *s, int mask);
|
|
void cpu_reset_interrupt(CPUState *env, int mask);
|
|
|
|
void cpu_exit(CPUState *s);
|
|
|
|
int qemu_cpu_has_work(CPUState *env);
|
|
|
|
/* Breakpoint/watchpoint flags */
|
|
#define BP_MEM_READ 0x01
|
|
#define BP_MEM_WRITE 0x02
|
|
#define BP_MEM_ACCESS (BP_MEM_READ | BP_MEM_WRITE)
|
|
#define BP_STOP_BEFORE_ACCESS 0x04
|
|
#define BP_WATCHPOINT_HIT 0x08
|
|
#define BP_GDB 0x10
|
|
#define BP_CPU 0x20
|
|
|
|
int cpu_breakpoint_insert(CPUState *env, target_ulong pc, int flags,
|
|
CPUBreakpoint **breakpoint);
|
|
int cpu_breakpoint_remove(CPUState *env, target_ulong pc, int flags);
|
|
void cpu_breakpoint_remove_by_ref(CPUState *env, CPUBreakpoint *breakpoint);
|
|
void cpu_breakpoint_remove_all(CPUState *env, int mask);
|
|
int cpu_watchpoint_insert(CPUState *env, target_ulong addr, target_ulong len,
|
|
int flags, CPUWatchpoint **watchpoint);
|
|
int cpu_watchpoint_remove(CPUState *env, target_ulong addr,
|
|
target_ulong len, int flags);
|
|
void cpu_watchpoint_remove_by_ref(CPUState *env, CPUWatchpoint *watchpoint);
|
|
void cpu_watchpoint_remove_all(CPUState *env, int mask);
|
|
|
|
#define SSTEP_ENABLE 0x1 /* Enable simulated HW single stepping */
|
|
#define SSTEP_NOIRQ 0x2 /* Do not use IRQ while single stepping */
|
|
#define SSTEP_NOTIMER 0x4 /* Do not Timers while single stepping */
|
|
|
|
void cpu_single_step(CPUState *env, int enabled);
|
|
void cpu_reset(CPUState *s);
|
|
|
|
/* Return the physical page corresponding to a virtual one. Use it
|
|
only for debugging because no protection checks are done. Return -1
|
|
if no page found. */
|
|
target_phys_addr_t cpu_get_phys_page_debug(CPUState *env, target_ulong addr);
|
|
|
|
#define CPU_LOG_TB_OUT_ASM (1 << 0)
|
|
#define CPU_LOG_TB_IN_ASM (1 << 1)
|
|
#define CPU_LOG_TB_OP (1 << 2)
|
|
#define CPU_LOG_TB_OP_OPT (1 << 3)
|
|
#define CPU_LOG_INT (1 << 4)
|
|
#define CPU_LOG_EXEC (1 << 5)
|
|
#define CPU_LOG_PCALL (1 << 6)
|
|
#define CPU_LOG_IOPORT (1 << 7)
|
|
#define CPU_LOG_TB_CPU (1 << 8)
|
|
#define CPU_LOG_RESET (1 << 9)
|
|
|
|
/* define log items */
|
|
typedef struct CPULogItem {
|
|
int mask;
|
|
const char *name;
|
|
const char *help;
|
|
} CPULogItem;
|
|
|
|
extern const CPULogItem cpu_log_items[];
|
|
|
|
void cpu_set_log(int log_flags);
|
|
void cpu_set_log_filename(const char *filename);
|
|
int cpu_str_to_log_mask(const char *str);
|
|
|
|
/* IO ports API */
|
|
|
|
/* NOTE: as these functions may be even used when there is an isa
|
|
brige on non x86 targets, we always defined them */
|
|
#ifndef NO_CPU_IO_DEFS
|
|
void cpu_outb(CPUState *env, int addr, int val);
|
|
void cpu_outw(CPUState *env, int addr, int val);
|
|
void cpu_outl(CPUState *env, int addr, int val);
|
|
int cpu_inb(CPUState *env, int addr);
|
|
int cpu_inw(CPUState *env, int addr);
|
|
int cpu_inl(CPUState *env, int addr);
|
|
#endif
|
|
|
|
/* address in the RAM (different from a physical address) */
|
|
#ifdef CONFIG_KQEMU
|
|
typedef uint32_t ram_addr_t;
|
|
#else
|
|
typedef unsigned long ram_addr_t;
|
|
#endif
|
|
|
|
/* memory API */
|
|
|
|
extern int phys_ram_fd;
|
|
extern uint8_t *phys_ram_dirty;
|
|
extern ram_addr_t ram_size;
|
|
extern ram_addr_t last_ram_offset;
|
|
|
|
/* physical memory access */
|
|
|
|
/* MMIO pages are identified by a combination of an IO device index and
|
|
3 flags. The ROMD code stores the page ram offset in iotlb entry,
|
|
so only a limited number of ids are avaiable. */
|
|
|
|
#define IO_MEM_SHIFT 3
|
|
#define IO_MEM_NB_ENTRIES (1 << (TARGET_PAGE_BITS - IO_MEM_SHIFT))
|
|
|
|
#define IO_MEM_RAM (0 << IO_MEM_SHIFT) /* hardcoded offset */
|
|
#define IO_MEM_ROM (1 << IO_MEM_SHIFT) /* hardcoded offset */
|
|
#define IO_MEM_UNASSIGNED (2 << IO_MEM_SHIFT)
|
|
#define IO_MEM_NOTDIRTY (3 << IO_MEM_SHIFT)
|
|
|
|
/* Acts like a ROM when read and like a device when written. */
|
|
#define IO_MEM_ROMD (1)
|
|
#define IO_MEM_SUBPAGE (2)
|
|
#define IO_MEM_SUBWIDTH (4)
|
|
|
|
/* Flags stored in the low bits of the TLB virtual address. These are
|
|
defined so that fast path ram access is all zeros. */
|
|
/* Zero if TLB entry is valid. */
|
|
#define TLB_INVALID_MASK (1 << 3)
|
|
/* Set if TLB entry references a clean RAM page. The iotlb entry will
|
|
contain the page physical address. */
|
|
#define TLB_NOTDIRTY (1 << 4)
|
|
/* Set if TLB entry is an IO callback. */
|
|
#define TLB_MMIO (1 << 5)
|
|
|
|
typedef void CPUWriteMemoryFunc(void *opaque, target_phys_addr_t addr, uint32_t value);
|
|
typedef uint32_t CPUReadMemoryFunc(void *opaque, target_phys_addr_t addr);
|
|
|
|
void cpu_register_physical_memory_offset(target_phys_addr_t start_addr,
|
|
ram_addr_t size,
|
|
ram_addr_t phys_offset,
|
|
ram_addr_t region_offset);
|
|
static inline void cpu_register_physical_memory(target_phys_addr_t start_addr,
|
|
ram_addr_t size,
|
|
ram_addr_t phys_offset)
|
|
{
|
|
cpu_register_physical_memory_offset(start_addr, size, phys_offset, 0);
|
|
}
|
|
|
|
ram_addr_t cpu_get_physical_page_desc(target_phys_addr_t addr);
|
|
ram_addr_t qemu_ram_alloc(ram_addr_t);
|
|
void qemu_ram_free(ram_addr_t addr);
|
|
/* This should only be used for ram local to a device. */
|
|
void *qemu_get_ram_ptr(ram_addr_t addr);
|
|
/* This should not be used by devices. */
|
|
ram_addr_t qemu_ram_addr_from_host(void *ptr);
|
|
|
|
int cpu_register_io_memory(int io_index,
|
|
CPUReadMemoryFunc **mem_read,
|
|
CPUWriteMemoryFunc **mem_write,
|
|
void *opaque);
|
|
void cpu_unregister_io_memory(int table_address);
|
|
|
|
void cpu_physical_memory_rw(target_phys_addr_t addr, uint8_t *buf,
|
|
int len, int is_write);
|
|
static inline void cpu_physical_memory_read(target_phys_addr_t addr,
|
|
uint8_t *buf, int len)
|
|
{
|
|
cpu_physical_memory_rw(addr, buf, len, 0);
|
|
}
|
|
static inline void cpu_physical_memory_write(target_phys_addr_t addr,
|
|
const uint8_t *buf, int len)
|
|
{
|
|
cpu_physical_memory_rw(addr, (uint8_t *)buf, len, 1);
|
|
}
|
|
void *cpu_physical_memory_map(target_phys_addr_t addr,
|
|
target_phys_addr_t *plen,
|
|
int is_write);
|
|
void cpu_physical_memory_unmap(void *buffer, target_phys_addr_t len,
|
|
int is_write, target_phys_addr_t access_len);
|
|
void *cpu_register_map_client(void *opaque, void (*callback)(void *opaque));
|
|
void cpu_unregister_map_client(void *cookie);
|
|
|
|
uint32_t ldub_phys(target_phys_addr_t addr);
|
|
uint32_t lduw_phys(target_phys_addr_t addr);
|
|
uint32_t ldl_phys(target_phys_addr_t addr);
|
|
uint64_t ldq_phys(target_phys_addr_t addr);
|
|
void stl_phys_notdirty(target_phys_addr_t addr, uint32_t val);
|
|
void stq_phys_notdirty(target_phys_addr_t addr, uint64_t val);
|
|
void stb_phys(target_phys_addr_t addr, uint32_t val);
|
|
void stw_phys(target_phys_addr_t addr, uint32_t val);
|
|
void stl_phys(target_phys_addr_t addr, uint32_t val);
|
|
void stq_phys(target_phys_addr_t addr, uint64_t val);
|
|
|
|
void cpu_physical_memory_write_rom(target_phys_addr_t addr,
|
|
const uint8_t *buf, int len);
|
|
int cpu_memory_rw_debug(CPUState *env, target_ulong addr,
|
|
uint8_t *buf, int len, int is_write);
|
|
|
|
#define VGA_DIRTY_FLAG 0x01
|
|
#define CODE_DIRTY_FLAG 0x02
|
|
#define KQEMU_DIRTY_FLAG 0x04
|
|
#define MIGRATION_DIRTY_FLAG 0x08
|
|
|
|
/* read dirty bit (return 0 or 1) */
|
|
static inline int cpu_physical_memory_is_dirty(ram_addr_t addr)
|
|
{
|
|
return phys_ram_dirty[addr >> TARGET_PAGE_BITS] == 0xff;
|
|
}
|
|
|
|
static inline int cpu_physical_memory_get_dirty(ram_addr_t addr,
|
|
int dirty_flags)
|
|
{
|
|
return phys_ram_dirty[addr >> TARGET_PAGE_BITS] & dirty_flags;
|
|
}
|
|
|
|
static inline void cpu_physical_memory_set_dirty(ram_addr_t addr)
|
|
{
|
|
phys_ram_dirty[addr >> TARGET_PAGE_BITS] = 0xff;
|
|
}
|
|
|
|
void cpu_physical_memory_reset_dirty(ram_addr_t start, ram_addr_t end,
|
|
int dirty_flags);
|
|
void cpu_tlb_update_dirty(CPUState *env);
|
|
|
|
int cpu_physical_memory_set_dirty_tracking(int enable);
|
|
|
|
int cpu_physical_memory_get_dirty_tracking(void);
|
|
|
|
void cpu_physical_sync_dirty_bitmap(target_phys_addr_t start_addr, target_phys_addr_t end_addr);
|
|
|
|
void dump_exec_info(FILE *f,
|
|
int (*cpu_fprintf)(FILE *f, const char *fmt, ...));
|
|
|
|
/* Coalesced MMIO regions are areas where write operations can be reordered.
|
|
* This usually implies that write operations are side-effect free. This allows
|
|
* batching which can make a major impact on performance when using
|
|
* virtualization.
|
|
*/
|
|
void qemu_register_coalesced_mmio(target_phys_addr_t addr, ram_addr_t size);
|
|
|
|
void qemu_unregister_coalesced_mmio(target_phys_addr_t addr, ram_addr_t size);
|
|
|
|
/*******************************************/
|
|
/* host CPU ticks (if available) */
|
|
|
|
#if defined(_ARCH_PPC)
|
|
|
|
static inline int64_t cpu_get_real_ticks(void)
|
|
{
|
|
int64_t retval;
|
|
#ifdef _ARCH_PPC64
|
|
/* This reads timebase in one 64bit go and includes Cell workaround from:
|
|
http://ozlabs.org/pipermail/linuxppc-dev/2006-October/027052.html
|
|
*/
|
|
__asm__ __volatile__ (
|
|
"mftb %0\n\t"
|
|
"cmpwi %0,0\n\t"
|
|
"beq- $-8"
|
|
: "=r" (retval));
|
|
#else
|
|
/* http://ozlabs.org/pipermail/linuxppc-dev/1999-October/003889.html */
|
|
unsigned long junk;
|
|
__asm__ __volatile__ (
|
|
"mftbu %1\n\t"
|
|
"mftb %L0\n\t"
|
|
"mftbu %0\n\t"
|
|
"cmpw %0,%1\n\t"
|
|
"bne $-16"
|
|
: "=r" (retval), "=r" (junk));
|
|
#endif
|
|
return retval;
|
|
}
|
|
|
|
#elif defined(__i386__)
|
|
|
|
static inline int64_t cpu_get_real_ticks(void)
|
|
{
|
|
int64_t val;
|
|
asm volatile ("rdtsc" : "=A" (val));
|
|
return val;
|
|
}
|
|
|
|
#elif defined(__x86_64__)
|
|
|
|
static inline int64_t cpu_get_real_ticks(void)
|
|
{
|
|
uint32_t low,high;
|
|
int64_t val;
|
|
asm volatile("rdtsc" : "=a" (low), "=d" (high));
|
|
val = high;
|
|
val <<= 32;
|
|
val |= low;
|
|
return val;
|
|
}
|
|
|
|
#elif defined(__hppa__)
|
|
|
|
static inline int64_t cpu_get_real_ticks(void)
|
|
{
|
|
int val;
|
|
asm volatile ("mfctl %%cr16, %0" : "=r"(val));
|
|
return val;
|
|
}
|
|
|
|
#elif defined(__ia64)
|
|
|
|
static inline int64_t cpu_get_real_ticks(void)
|
|
{
|
|
int64_t val;
|
|
asm volatile ("mov %0 = ar.itc" : "=r"(val) :: "memory");
|
|
return val;
|
|
}
|
|
|
|
#elif defined(__s390__)
|
|
|
|
static inline int64_t cpu_get_real_ticks(void)
|
|
{
|
|
int64_t val;
|
|
asm volatile("stck 0(%1)" : "=m" (val) : "a" (&val) : "cc");
|
|
return val;
|
|
}
|
|
|
|
#elif defined(__sparc_v8plus__) || defined(__sparc_v8plusa__) || defined(__sparc_v9__)
|
|
|
|
static inline int64_t cpu_get_real_ticks (void)
|
|
{
|
|
#if defined(_LP64)
|
|
uint64_t rval;
|
|
asm volatile("rd %%tick,%0" : "=r"(rval));
|
|
return rval;
|
|
#else
|
|
union {
|
|
uint64_t i64;
|
|
struct {
|
|
uint32_t high;
|
|
uint32_t low;
|
|
} i32;
|
|
} rval;
|
|
asm volatile("rd %%tick,%1; srlx %1,32,%0"
|
|
: "=r"(rval.i32.high), "=r"(rval.i32.low));
|
|
return rval.i64;
|
|
#endif
|
|
}
|
|
|
|
#elif defined(__mips__)
|
|
|
|
static inline int64_t cpu_get_real_ticks(void)
|
|
{
|
|
#if __mips_isa_rev >= 2
|
|
uint32_t count;
|
|
static uint32_t cyc_per_count = 0;
|
|
|
|
if (!cyc_per_count)
|
|
__asm__ __volatile__("rdhwr %0, $3" : "=r" (cyc_per_count));
|
|
|
|
__asm__ __volatile__("rdhwr %1, $2" : "=r" (count));
|
|
return (int64_t)(count * cyc_per_count);
|
|
#else
|
|
/* FIXME */
|
|
static int64_t ticks = 0;
|
|
return ticks++;
|
|
#endif
|
|
}
|
|
|
|
#else
|
|
/* The host CPU doesn't have an easily accessible cycle counter.
|
|
Just return a monotonically increasing value. This will be
|
|
totally wrong, but hopefully better than nothing. */
|
|
static inline int64_t cpu_get_real_ticks (void)
|
|
{
|
|
static int64_t ticks = 0;
|
|
return ticks++;
|
|
}
|
|
#endif
|
|
|
|
/* profiling */
|
|
#ifdef CONFIG_PROFILER
|
|
static inline int64_t profile_getclock(void)
|
|
{
|
|
return cpu_get_real_ticks();
|
|
}
|
|
|
|
extern int64_t kqemu_time, kqemu_time_start;
|
|
extern int64_t qemu_time, qemu_time_start;
|
|
extern int64_t tlb_flush_time;
|
|
extern int64_t kqemu_exec_count;
|
|
extern int64_t dev_time;
|
|
extern int64_t kqemu_ret_int_count;
|
|
extern int64_t kqemu_ret_excp_count;
|
|
extern int64_t kqemu_ret_intr_count;
|
|
#endif
|
|
|
|
#endif /* CPU_ALL_H */
|