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| author | Nicolas Pitre <nico@fluxnic.net> | 2022-04-08 12:25:07 -0400 |
|---|---|---|
| committer | Alistair Francis <alistair.francis@wdc.com> | 2022-04-22 10:35:16 +1000 |
| commit | 6248a8fe4d8ad84b407d26559c0cb65b9a61eb67 (patch) | |
| tree | 5398a392c9623f6c22fe310d799e369d9b67822c /hw/riscv/virt.c | |
| parent | 8f013700ebf96edb4d481e4d2471c3ed246c58ef (diff) | |
target/riscv/pmp: fix NAPOT range computation overflow
There is an overflow with the current code where a pmpaddr value of
0x1fffffff is decoded as sa=0 and ea=0 whereas it should be sa=0 and
ea=0xffffffff.
Fix that by simplifying the computation. There is in fact no need for
ctz64() nor special case for -1 to achieve proper results.
Signed-off-by: Nicolas Pitre <nico@fluxnic.net>
Reviewed-by: Alistair Francis <alistair.francis@wdc.com>
Message-Id: <rq81o86n-17ps-92no-p65o-79o88476266@syhkavp.arg>
Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
Diffstat (limited to 'hw/riscv/virt.c')
0 files changed, 0 insertions, 0 deletions