diff options
| author | Palmer Dabbelt <palmer@rivosinc.com> | 2022-07-14 11:00:33 -0700 |
|---|---|---|
| committer | Alistair Francis <alistair.francis@wdc.com> | 2022-07-27 17:34:02 +1000 |
| commit | 44602af8585fd2f331c69e2c071eff39227535ed (patch) | |
| tree | fd0b285cf73a5acb62fa67c411fa304df2baa95a /hw/intc/sifive_plic.c | |
| parent | 7b17a1a841fc2336eba53afade9cadb14bd3dd9a (diff) | |
RISC-V: Allow both Zmmul and M
We got to talking about how Zmmul and M interact with each other
https://github.com/riscv/riscv-isa-manual/issues/869 , and it turns out
that QEMU's behavior is slightly wrong: having Zmmul and M is a legal
combination, it just means that the multiplication instructions are
supported even when M is disabled at runtime via misa.
This just stops overriding M from Zmmul, with that the other checks for
the multiplication instructions work as per the ISA.
Signed-off-by: Palmer Dabbelt <palmer@rivosinc.com>
Reviewed-by: Alistair Francis <alistair.francis@wdc.com>
Message-Id: <20220714180033.22385-1-palmer@rivosinc.com>
Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
Diffstat (limited to 'hw/intc/sifive_plic.c')
0 files changed, 0 insertions, 0 deletions