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由 Thomas Huth 提交于
In the old DABR register, the BT (Breakpoint Translation) bit is bit number 61. In the new DAWRX register, the WT (Watchpoint Translation) bit is bit number 59. So to move the DABR-BT bit into the position of the DAWRX-WT bit, it has to be shifted by two, not only by one. This fixes hardware watchpoints in gdb of older guests that only use the H_SET_DABR/X interface instead of the new H_SET_MODE interface. Cc: stable@vger.kernel.org # v3.14+ Signed-off-by: NThomas Huth <thuth@redhat.com> Reviewed-by: NLaurent Vivier <lvivier@redhat.com> Reviewed-by: NDavid Gibson <david@gibson.dropbear.id.au> Signed-off-by: NPaul Mackerras <paulus@samba.org>
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