• Pratyush Anand's avatar
    hw_breakpoint: Allow watchpoint of length 3,5,6 and 7 · 651be3cb
    Pratyush Anand authored
    We only support breakpoint/watchpoint of length 1, 2, 4 and 8. If we can
    support other length as well, then user may watch more data with less
    number of watchpoints (provided hardware supports it). For example: if we
    have to watch only 4th, 5th and 6th byte from a 64 bit aligned address, we
    will have to use two slots to implement it currently. One slot will watch a
    half word at offset 4 and other a byte at offset 6. If we can have a
    watchpoint of length 3 then we can watch it with single slot as well.
    
    ARM64 hardware does support such functionality, therefore adding these new
    definitions in generic layer.
    Signed-off-by: default avatarPratyush Anand <panand@redhat.com>
    Signed-off-by: default avatarWill Deacon <will.deacon@arm.com>
    651be3cb
hw_breakpoint.h 694 Bytes