Date: Thu, 8 Sep 2016 12:53:01 +0000 (UTC) From: Andrew Turner <andrew@FreeBSD.org> To: src-committers@freebsd.org, svn-src-all@freebsd.org, svn-src-head@freebsd.org Subject: svn commit: r305607 - head/sys/arm64/arm64 Message-ID: <201609081253.u88Cr18b036987@repo.freebsd.org>
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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;
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