struct arm_boot_info;
-#define NB_MMU_MODES 2
+#define NB_MMU_MODES 4
/* We currently assume float and double are IEEE single and double
precision respectively.
/* Return true if the specified exception level is running in AArch64 state. */
static inline bool arm_el_is_aa64(CPUARMState *env, int el)
{
- /* We don't currently support EL2 or EL3, and this isn't valid for EL0
+ /* We don't currently support EL2, and this isn't valid for EL0
* (if we're in EL0, is_a64() is what you want, and if we're not in EL0
* then the state of EL0 isn't well defined.)
*/
- assert(el == 1);
+ assert(el == 1 || el == 3);
+
/* AArch64-capable CPUs always run with EL1 in AArch64 mode. This
* is a QEMU-imposed simplification which we may wish to change later.
* If we in future support EL2 and/or EL3, then the state of lower
*/
static inline int arm_current_el(CPUARMState *env)
{
- if (env->aarch64) {
+ if (is_a64(env)) {
return extract32(env->pstate, 2, 2);
}
- if ((env->uncached_cpsr & 0x1f) == ARM_CPU_MODE_USR) {
+ switch (env->uncached_cpsr & 0x1f) {
+ case ARM_CPU_MODE_USR:
return 0;
+ case ARM_CPU_MODE_HYP:
+ return 2;
+ case ARM_CPU_MODE_MON:
+ return 3;
+ default:
+ if (arm_is_secure(env) && !arm_el_is_aa64(env, 3)) {
+ /* If EL3 is 32-bit then all secure privileged modes run in
+ * EL3
+ */
+ return 3;
+ }
+
+ return 1;
}
- /* We don't currently implement the Virtualization or TrustZone
- * extensions, so EL2 and EL3 don't exist for us.
- */
- return 1;
}
typedef struct ARMCPRegInfo ARMCPRegInfo;