+
+/*
+ * This abort handler deals with Synchronous External Abort.
+ * It calls notifiers, and then returns "fault".
+ */
+static int do_sea(unsigned long addr, unsigned int esr, struct pt_regs *regs)
+{
+ struct siginfo info;
+
+ pr_err("Synchronous External Abort: %s (0x%08x) at 0x%016lx\n",
+ fault_name(esr), esr, addr);
+
+ info.si_signo = SIGBUS;
+ info.si_errno = 0;
+ info.si_code = 0;
+ if (esr & SEA_FnV_MASK)
+ info.si_addr = 0;
+ else
+ info.si_addr = (void __user *)addr;
+ arm64_notify_die("", regs, &info, esr);
+
+ return 0;
+}
+
static const struct fault_info {
int (*fn)(unsigned long addr, unsigned int esr, struct pt_regs
*regs);
int sig;
@@ -509,22 +534,22 @@ static int do_bad(unsigned long addr, unsigned int esr,
struct pt_regs *regs)
{ do_page_fault, SIGSEGV, SEGV_ACCERR, "level 1 permission
fault" },
{ do_page_fault, SIGSEGV, SEGV_ACCERR, "level 2 permission
fault" },
{ do_page_fault, SIGSEGV, SEGV_ACCERR, "level 3 permission
fault" },
- { do_bad, SIGBUS, 0, "synchronous external
abort" },
+ { do_sea, SIGBUS, 0, "synchronous external
abort" },
{ do_bad, SIGBUS, 0, "unknown 17"
},
{ do_bad, SIGBUS, 0, "unknown 18"
},
{ do_bad, SIGBUS, 0, "unknown 19"
},
- { do_bad, SIGBUS, 0, "synchronous external abort
(translation table walk)" },
- { do_bad, SIGBUS, 0, "synchronous external abort
(translation table walk)" },
- { do_bad, SIGBUS, 0, "synchronous external abort
(translation table walk)" },
- { do_bad, SIGBUS, 0, "synchronous external abort
(translation table walk)" },
- { do_bad, SIGBUS, 0, "synchronous parity
error" },
+ { do_sea, SIGBUS, 0, "level 0 (translation table
walk)" },
+ { do_sea, SIGBUS, 0, "level 1 (translation table
walk)" },
+ { do_sea, SIGBUS, 0, "level 2 (translation table
walk)" },
+ { do_sea, SIGBUS, 0, "level 3 (translation table
walk)" },
+ { do_sea, SIGBUS, 0, "synchronous parity or ECC
error" },
{ do_bad, SIGBUS, 0, "unknown 25"
},
{ do_bad, SIGBUS, 0, "unknown 26"
},
{ do_bad, SIGBUS, 0, "unknown 27"
},
- { do_bad, SIGBUS, 0, "synchronous parity error
(translation table walk)" },
- { do_bad, SIGBUS, 0, "synchronous parity error
(translation table walk)" },
- { do_bad, SIGBUS, 0, "synchronous parity error
(translation table walk)" },
- { do_bad, SIGBUS, 0, "synchronous parity error
(translation table walk)" },
+ { do_sea, SIGBUS, 0, "level 0 synchronous parity
error (translation table walk)" },
+ { do_sea, SIGBUS, 0, "level 1 synchronous parity
error (translation table walk)" },
+ { do_sea, SIGBUS, 0, "level 2 synchronous parity
error (translation table walk)" },
+ { do_sea, SIGBUS, 0, "level 3 synchronous parity
error (translation table walk)" },
{ do_bad, SIGBUS, 0, "unknown 32"
},
{ do_alignment_fault, SIGBUS, BUS_ADRALN, "alignment fault"
},
{ do_bad, SIGBUS, 0, "unknown 34"
},