diff options
| -rw-r--r-- | target-i386/misc_helper.c | 42 | ||||
| -rw-r--r-- | target-i386/seg_helper.c | 42 |
2 files changed, 42 insertions, 42 deletions
diff --git a/target-i386/misc_helper.c b/target-i386/misc_helper.c index 4f1e30f1fd..4aaf1e4d95 100644 --- a/target-i386/misc_helper.c +++ b/target-i386/misc_helper.c @@ -22,48 +22,6 @@ #include "exec/helper-proto.h" #include "exec/cpu_ldst.h" -/* check if Port I/O is allowed in TSS */ -static inline void check_io(CPUX86State *env, int addr, int size) -{ - int io_offset, val, mask; - - /* TSS must be a valid 32 bit one */ - if (!(env->tr.flags & DESC_P_MASK) || - ((env->tr.flags >> DESC_TYPE_SHIFT) & 0xf) != 9 || - env->tr.limit < 103) { - goto fail; - } - io_offset = cpu_lduw_kernel(env, env->tr.base + 0x66); - io_offset += (addr >> 3); - /* Note: the check needs two bytes */ - if ((io_offset + 1) > env->tr.limit) { - goto fail; - } - val = cpu_lduw_kernel(env, env->tr.base + io_offset); - val >>= (addr & 7); - mask = (1 << size) - 1; - /* all bits must be zero to allow the I/O */ - if ((val & mask) != 0) { - fail: - raise_exception_err(env, EXCP0D_GPF, 0); - } -} - -void helper_check_iob(CPUX86State *env, uint32_t t0) -{ - check_io(env, t0, 1); -} - -void helper_check_iow(CPUX86State *env, uint32_t t0) -{ - check_io(env, t0, 2); -} - -void helper_check_iol(CPUX86State *env, uint32_t t0) -{ - check_io(env, t0, 4); -} - void helper_outb(uint32_t port, uint32_t data) { cpu_outb(port, data & 0xff); diff --git a/target-i386/seg_helper.c b/target-i386/seg_helper.c index ba472154e8..31c5508e6c 100644 --- a/target-i386/seg_helper.c +++ b/target-i386/seg_helper.c @@ -2469,3 +2469,45 @@ void cpu_x86_load_seg(CPUX86State *env, int seg_reg, int selector) } } #endif + +/* check if Port I/O is allowed in TSS */ +static inline void check_io(CPUX86State *env, int addr, int size) +{ + int io_offset, val, mask; + + /* TSS must be a valid 32 bit one */ + if (!(env->tr.flags & DESC_P_MASK) || + ((env->tr.flags >> DESC_TYPE_SHIFT) & 0xf) != 9 || + env->tr.limit < 103) { + goto fail; + } + io_offset = cpu_lduw_kernel(env, env->tr.base + 0x66); + io_offset += (addr >> 3); + /* Note: the check needs two bytes */ + if ((io_offset + 1) > env->tr.limit) { + goto fail; + } + val = cpu_lduw_kernel(env, env->tr.base + io_offset); + val >>= (addr & 7); + mask = (1 << size) - 1; + /* all bits must be zero to allow the I/O */ + if ((val & mask) != 0) { + fail: + raise_exception_err(env, EXCP0D_GPF, 0); + } +} + +void helper_check_iob(CPUX86State *env, uint32_t t0) +{ + check_io(env, t0, 1); +} + +void helper_check_iow(CPUX86State *env, uint32_t t0) +{ + check_io(env, t0, 2); +} + +void helper_check_iol(CPUX86State *env, uint32_t t0) +{ + check_io(env, t0, 4); +} |