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target/arm: Decode PAuth within system hint space 

Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Message-id: 20190108223129.5570-7-richard.henderson@linaro.org
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
This commit is contained in:
Richard Henderson 2019-01-21 10:23:11 +00:00 committed by Peter Maydell
parent 0d43e1a2d2
commit 7c94c8343c
1 changed files with 81 additions and 12 deletions
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93
target/arm/translate-a64.c
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@ -1471,33 +1471,102 @@ static void handle_hint(DisasContext *s, uint32_t insn,
}
switch (selector) {
case 0: /* NOP */
return;
case 3: /* WFI */
case 0b00000: /* NOP */
break;
case 0b00011: /* WFI */
s->base.is_jmp = DISAS_WFI;
return;
break;
case 0b00001: /* YIELD */
/* When running in MTTCG we don't generate jumps to the yield and
* WFE helpers as it won't affect the scheduling of other vCPUs.
* If we wanted to more completely model WFE/SEV so we don't busy
* spin unnecessarily we would need to do something more involved.
*/
case 1: /* YIELD */
if (!(tb_cflags(s->base.tb) & CF_PARALLEL)) {
s->base.is_jmp = DISAS_YIELD;
}
return;
case 2: /* WFE */
break;
case 0b00010: /* WFE */
if (!(tb_cflags(s->base.tb) & CF_PARALLEL)) {
s->base.is_jmp = DISAS_WFE;
}
return;
case 4: /* SEV */
case 5: /* SEVL */
break;
case 0b00100: /* SEV */
case 0b00101: /* SEVL */
/* we treat all as NOP at least for now */
return;
break;
case 0b00111: /* XPACLRI */
if (s->pauth_active) {
gen_helper_xpaci(cpu_X[30], cpu_env, cpu_X[30]);
}
break;
case 0b01000: /* PACIA1716 */
if (s->pauth_active) {
gen_helper_pacia(cpu_X[17], cpu_env, cpu_X[17], cpu_X[16]);
}
break;
case 0b01010: /* PACIB1716 */
if (s->pauth_active) {
gen_helper_pacib(cpu_X[17], cpu_env, cpu_X[17], cpu_X[16]);
}
break;
case 0b01100: /* AUTIA1716 */
if (s->pauth_active) {
gen_helper_autia(cpu_X[17], cpu_env, cpu_X[17], cpu_X[16]);
}
break;
case 0b01110: /* AUTIB1716 */
if (s->pauth_active) {
gen_helper_autib(cpu_X[17], cpu_env, cpu_X[17], cpu_X[16]);
}
break;
case 0b11000: /* PACIAZ */
if (s->pauth_active) {
gen_helper_pacia(cpu_X[30], cpu_env, cpu_X[30],
new_tmp_a64_zero(s));
}
break;
case 0b11001: /* PACIASP */
if (s->pauth_active) {
gen_helper_pacia(cpu_X[30], cpu_env, cpu_X[30], cpu_X[31]);
}
break;
case 0b11010: /* PACIBZ */
if (s->pauth_active) {
gen_helper_pacib(cpu_X[30], cpu_env, cpu_X[30],
new_tmp_a64_zero(s));
}
break;
case 0b11011: /* PACIBSP */
if (s->pauth_active) {
gen_helper_pacib(cpu_X[30], cpu_env, cpu_X[30], cpu_X[31]);
}
break;
case 0b11100: /* AUTIAZ */
if (s->pauth_active) {
gen_helper_autia(cpu_X[30], cpu_env, cpu_X[30],
new_tmp_a64_zero(s));
}
break;
case 0b11101: /* AUTIASP */
if (s->pauth_active) {
gen_helper_autia(cpu_X[30], cpu_env, cpu_X[30], cpu_X[31]);
}
break;
case 0b11110: /* AUTIBZ */
if (s->pauth_active) {
gen_helper_autib(cpu_X[30], cpu_env, cpu_X[30],
new_tmp_a64_zero(s));
}
break;
case 0b11111: /* AUTIBSP */
if (s->pauth_active) {
gen_helper_autib(cpu_X[30], cpu_env, cpu_X[30], cpu_X[31]);
}
break;
default:
/* default specified as NOP equivalent */
return;
break;
}
}