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linux-user/vm86.c: Use cpu_ldl_data &c rather than plain ldl &c

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Use the cpu_ld*_data and cpu_st*_data family of functions to access
guest memory in vm86.c rather than the very short-named ldl/stl functions.

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Richard Henderson <rth@twiddle.net>
Reviewed-by: Paolo Bonzini <pbonzini@redhat.com>
Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Message-id: 1421334118-3287-7-git-send-email-peter.maydell@linaro.org
This commit is contained in:
Peter Maydell 2015-01-20 15:19:33 +00:00
parent b8d6ac9f90
commit 5899d6d0b4
1 changed files with 31 additions and 26 deletions
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57
linux-user/vm86.c
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@ -45,29 +45,34 @@ static inline int is_revectored(int nr, struct target_revectored_struct *bitmap)
return (((uint8_t *)bitmap)[nr >> 3] >> (nr & 7)) & 1;
}
static inline void vm_putw(uint32_t segptr, unsigned int reg16, unsigned int val)
static inline void vm_putw(CPUX86State *env, uint32_t segptr,
unsigned int reg16, unsigned int val)
{
stw(segptr + (reg16 & 0xffff), val);
cpu_stw_data(env, segptr + (reg16 & 0xffff), val);
}
static inline void vm_putl(uint32_t segptr, unsigned int reg16, unsigned int val)
static inline void vm_putl(CPUX86State *env, uint32_t segptr,
unsigned int reg16, unsigned int val)
{
stl(segptr + (reg16 & 0xffff), val);
cpu_stl_data(env, segptr + (reg16 & 0xffff), val);
}
static inline unsigned int vm_getb(uint32_t segptr, unsigned int reg16)
static inline unsigned int vm_getb(CPUX86State *env,
uint32_t segptr, unsigned int reg16)
{
return ldub(segptr + (reg16 & 0xffff));
return cpu_ldub_data(env, segptr + (reg16 & 0xffff));
}
static inline unsigned int vm_getw(uint32_t segptr, unsigned int reg16)
static inline unsigned int vm_getw(CPUX86State *env,
uint32_t segptr, unsigned int reg16)
{
return lduw(segptr + (reg16 & 0xffff));
return cpu_lduw_data(env, segptr + (reg16 & 0xffff));
}
static inline unsigned int vm_getl(uint32_t segptr, unsigned int reg16)
static inline unsigned int vm_getl(CPUX86State *env,
uint32_t segptr, unsigned int reg16)
{
return ldl(segptr + (reg16 & 0xffff));
return cpu_ldl_data(env, segptr + (reg16 & 0xffff));
}
void save_v86_state(CPUX86State *env)
@ -221,7 +226,7 @@ static void do_int(CPUX86State *env, int intno)
&ts->vm86plus.int21_revectored))
goto cannot_handle;
int_addr = (intno << 2);
segoffs = ldl(int_addr);
segoffs = cpu_ldl_data(env, int_addr);
if ((segoffs >> 16) == TARGET_BIOSSEG)
goto cannot_handle;
LOG_VM86("VM86: emulating int 0x%x. CS:IP=%04x:%04x\n",
@ -229,9 +234,9 @@ static void do_int(CPUX86State *env, int intno)
/* save old state */
ssp = env->segs[R_SS].selector << 4;
sp = env->regs[R_ESP] & 0xffff;
vm_putw(ssp, sp - 2, get_vflags(env));
vm_putw(ssp, sp - 4, env->segs[R_CS].selector);
vm_putw(ssp, sp - 6, env->eip);
vm_putw(env, ssp, sp - 2, get_vflags(env));
vm_putw(env, ssp, sp - 4, env->segs[R_CS].selector);
vm_putw(env, ssp, sp - 6, env->eip);
ADD16(env->regs[R_ESP], -6);
/* goto interrupt handler */
env->eip = segoffs & 0xffff;
@ -285,7 +290,7 @@ void handle_vm86_fault(CPUX86State *env)
data32 = 0;
pref_done = 0;
do {
opcode = vm_getb(csp, ip);
opcode = vm_getb(env, csp, ip);
ADD16(ip, 1);
switch (opcode) {
case 0x66: /* 32-bit data */ data32=1; break;
@ -306,10 +311,10 @@ void handle_vm86_fault(CPUX86State *env)
switch(opcode) {
case 0x9c: /* pushf */
if (data32) {
vm_putl(ssp, sp - 4, get_vflags(env));
vm_putl(env, ssp, sp - 4, get_vflags(env));
ADD16(env->regs[R_ESP], -4);
} else {
vm_putw(ssp, sp - 2, get_vflags(env));
vm_putw(env, ssp, sp - 2, get_vflags(env));
ADD16(env->regs[R_ESP], -2);
}
env->eip = ip;
@ -317,10 +322,10 @@ void handle_vm86_fault(CPUX86State *env)
case 0x9d: /* popf */
if (data32) {
newflags = vm_getl(ssp, sp);
newflags = vm_getl(env, ssp, sp);
ADD16(env->regs[R_ESP], 4);
} else {
newflags = vm_getw(ssp, sp);
newflags = vm_getw(env, ssp, sp);
ADD16(env->regs[R_ESP], 2);
}
env->eip = ip;
@ -335,7 +340,7 @@ void handle_vm86_fault(CPUX86State *env)
VM86_FAULT_RETURN;
case 0xcd: /* int */
intno = vm_getb(csp, ip);
intno = vm_getb(env, csp, ip);
ADD16(ip, 1);
env->eip = ip;
if (ts->vm86plus.vm86plus.flags & TARGET_vm86dbg_active) {
@ -350,14 +355,14 @@ void handle_vm86_fault(CPUX86State *env)
case 0xcf: /* iret */
if (data32) {
newip = vm_getl(ssp, sp) & 0xffff;
newcs = vm_getl(ssp, sp + 4) & 0xffff;
newflags = vm_getl(ssp, sp + 8);
newip = vm_getl(env, ssp, sp) & 0xffff;
newcs = vm_getl(env, ssp, sp + 4) & 0xffff;
newflags = vm_getl(env, ssp, sp + 8);
ADD16(env->regs[R_ESP], 12);
} else {
newip = vm_getw(ssp, sp);
newcs = vm_getw(ssp, sp + 2);
newflags = vm_getw(ssp, sp + 4);
newip = vm_getw(env, ssp, sp);
newcs = vm_getw(env, ssp, sp + 2);
newflags = vm_getw(env, ssp, sp + 4);
ADD16(env->regs[R_ESP], 6);
}
env->eip = newip;