Author: andrew
Date: Thu Sep 8 12:53:01 2016
New Revision: 305607
URL: https://svnweb.freebsd.org/changeset/base/305607
Log:
Trap msr/mrs instructions. These are privileged arm64 instructions and
shouldn't normally be used.
Obtained from: ABT Systems Ltd
MFC after: 1 week
Sponsored by: The FreeBSD Foundation
Modified:
head/sys/arm64/arm64/trap.c
Modified: head/sys/arm64/arm64/trap.c
==============================================================================
--- head/sys/arm64/arm64/trap.c Thu Sep 8 12:43:24 2016 (r305606)
+++ head/sys/arm64/arm64/trap.c Thu Sep 8 12:53:01 2016 (r305607)
@@ -391,6 +391,10 @@ do_el0_sync(struct trapframe *frame)
call_trapsignal(td, SIGTRAP, TRAP_BRKPT, (void *)frame->tf_elr);
userret(td, frame);
break;
+ case EXCP_MSR:
+ call_trapsignal(td, SIGILL, ILL_PRVOPC, (void *)frame->tf_elr);
+ userret(td, frame);
+ break;
case EXCP_SOFTSTP_EL0:
td->td_frame->tf_spsr &= ~PSR_SS;
td->td_pcb->pcb_flags &= ~PCB_SINGLE_STEP;
_______________________________________________
[email protected] mailing list
https://lists.freebsd.org/mailman/listinfo/svn-src-head
To unsubscribe, send any mail to "[email protected]"
