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author | Ming-Yi Lai <ming-yi.lai@mediatek.com> | 2024-01-10 14:16:31 +0800 |
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committer | Ming-Yi Lai <ming-yi.lai@mediatek.com> | 2024-02-15 13:11:05 +0800 |
commit | a22754478850d6cbaf501a29ff8b4f04cfe46366 (patch) | |
tree | 516be96d45af30b4bce429f9aa116f3fd86241b3 /pk | |
parent | 36019deb26a8f7519c18c9668fa6559142aa11b8 (diff) | |
download | pk-a22754478850d6cbaf501a29ff8b4f04cfe46366.zip pk-a22754478850d6cbaf501a29ff8b4f04cfe46366.tar.gz pk-a22754478850d6cbaf501a29ff8b4f04cfe46366.tar.bz2 |
Zicfilp: Handle software check exception -- landing pad fault
Diffstat (limited to 'pk')
-rw-r--r-- | pk/handlers.c | 16 |
1 files changed, 16 insertions, 0 deletions
diff --git a/pk/handlers.c b/pk/handlers.c index 4b4abaf..2932d94 100644 --- a/pk/handlers.c +++ b/pk/handlers.c @@ -90,6 +90,21 @@ static void handle_interrupt(trapframe_t* tf) clear_csr(sip, SIP_SSIP); } +static void handle_software_check_fault(trapframe_t* tf) +{ + dump_tf(tf); + + const uint64_t stval = read_csr(stval); + switch (stval) { + case LANDING_PAD_FAULT: + panic("Invalid landing pad!"); + break; + default: + panic("Software check fault: unhandled stval: %d", stval); + break; + } +} + void handle_trap(trapframe_t* tf) { if ((intptr_t)tf->cause < 0) @@ -110,6 +125,7 @@ void handle_trap(trapframe_t* tf) [CAUSE_MISALIGNED_STORE] = handle_misaligned_store, [CAUSE_LOAD_PAGE_FAULT] = handle_fault_load, [CAUSE_STORE_PAGE_FAULT] = handle_fault_store, + [CAUSE_SOFTWARE_CHECK_FAULT] = handle_software_check_fault, }; kassert(tf->cause < ARRAY_SIZE(trap_handlers) && trap_handlers[tf->cause]); |