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i386 call internal helper on special porpese register write

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Some registers writes have side effects. i.e. write to cr3 flush the tlb,
if the PG bit is set.
This commit is contained in:
Takacs, Philipp 2022-10-17 14:33:10 +02:00
parent 7f1eb4532d
commit 901034577a
1 changed files with 12 additions and 0 deletions
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12
qemu/target/i386/unicorn.c
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@ -977,10 +977,16 @@ static int reg_write(CPUX86State *env, unsigned int regid, const void *value,
default:
break;
case UC_X86_REG_CR0:
cpu_x86_update_cr0(env, *(uint32_t *)value);
goto write_cr;
case UC_X86_REG_CR1:
case UC_X86_REG_CR2:
case UC_X86_REG_CR3:
cpu_x86_update_cr3(env, *(uint32_t *)value);
goto write_cr;
case UC_X86_REG_CR4:
cpu_x86_update_cr4(env, *(uint32_t *)value);
write_cr:
env->cr[regid - UC_X86_REG_CR0] = *(uint32_t *)value;
break;
case UC_X86_REG_DR0:
@ -1163,10 +1169,16 @@ static int reg_write(CPUX86State *env, unsigned int regid, const void *value,
default:
break;
case UC_X86_REG_CR0:
cpu_x86_update_cr0(env, *(uint32_t *) value);
goto write_cr64;
case UC_X86_REG_CR1:
case UC_X86_REG_CR2:
case UC_X86_REG_CR3:
cpu_x86_update_cr3(env, *(uint32_t *) value);
goto write_cr64;
case UC_X86_REG_CR4:
cpu_x86_update_cr4(env, *(uint32_t *) value);
write_cr64:
env->cr[regid - UC_X86_REG_CR0] = *(uint64_t *)value;
break;
case UC_X86_REG_DR0: