From: Sukadev Bhattiprolu <sukadev@xxxxxxxxxxxxx> commit c2a20711fc181e7f22ee5c16c28cb9578af84729 upstream. ASDR is HV-privileged and must only be accessed in HV-mode. Fixes a Program Check (0x700) when xmon in a VM dumps SPRs. Fixes: d1e1b351f50f ("powerpc/xmon: Add ISA v3.0 SPRs to SPR dump") Cc: stable@xxxxxxxxxxxxxxx # v4.14+ Signed-off-by: Sukadev Bhattiprolu <sukadev@xxxxxxxxxxxxx> Reviewed-by: Andrew Donnellan <ajd@xxxxxxxxxxxxx> Signed-off-by: Michael Ellerman <mpe@xxxxxxxxxxxxxx> Link: https://lore.kernel.org/r/20200107021633.GB29843@xxxxxxxxxx Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx> --- arch/powerpc/xmon/xmon.c | 9 ++++----- 1 file changed, 4 insertions(+), 5 deletions(-) --- a/arch/powerpc/xmon/xmon.c +++ b/arch/powerpc/xmon/xmon.c @@ -1949,15 +1949,14 @@ static void dump_300_sprs(void) printf("pidr = %.16lx tidr = %.16lx\n", mfspr(SPRN_PID), mfspr(SPRN_TIDR)); - printf("asdr = %.16lx psscr = %.16lx\n", - mfspr(SPRN_ASDR), hv ? mfspr(SPRN_PSSCR) - : mfspr(SPRN_PSSCR_PR)); + printf("psscr = %.16lx\n", + hv ? mfspr(SPRN_PSSCR) : mfspr(SPRN_PSSCR_PR)); if (!hv) return; - printf("ptcr = %.16lx\n", - mfspr(SPRN_PTCR)); + printf("ptcr = %.16lx asdr = %.16lx\n", + mfspr(SPRN_PTCR), mfspr(SPRN_ASDR)); #endif }