Track priorities and highest active and pending
exception. Also the highest pending exception
for faster exception handler entry.
The pending exception information will be re-calculated
on load, so no additional vmstate tracking is needed.
---
target-arm/cpu.c | 2 ++
target-arm/cpu.h | 3 +++
2 files changed, 5 insertions(+)
diff --git a/target-arm/cpu.c b/target-arm/cpu.c
index 728854f..5348028 100644
--- a/target-arm/cpu.c
+++ b/target-arm/cpu.c
@@ -173,6 +173,8 @@ static void arm_cpu_reset(CPUState *s)
uint32_t initial_pc; /* Loaded from 0x4 */
uint8_t *rom;
+ env->v7m.exception_prio = env->v7m.pending_prio = 0x100;
+
env->daif &= ~PSTATE_I;
rom = rom_ptr(0);
if (rom) {
diff --git a/target-arm/cpu.h b/target-arm/cpu.h
index 815fef8..c193fbb 100644
--- a/target-arm/cpu.h
+++ b/target-arm/cpu.h
@@ -398,6 +398,9 @@ typedef struct CPUARMState {
uint32_t control;
int current_sp;
int exception;
+ int exception_prio;
+ unsigned pending;
+ int pending_prio;
} v7m;
/* Information associated with an exception about to be taken:
--
2.1.4
