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| author | Deepak Gupta <debug@rivosinc.com> | 2024-10-08 15:49:57 -0700 |
|---|---|---|
| committer | Alistair Francis <alistair.francis@wdc.com> | 2024-10-30 11:22:08 +1000 |
| commit | 966f3a38958acf18ae64031c014dcd58e2181211 (patch) | |
| tree | e5215324a5cecb49f4edb0e862b7ae787801144c /scripts/qom-cast-macro-clean-cocci-gen.py | |
| parent | b039c9611331ccf61a53b2d26d80a8cfb596e0ce (diff) | |
| download | qemu-966f3a38958acf18ae64031c014dcd58e2181211.zip qemu-966f3a38958acf18ae64031c014dcd58e2181211.tar.gz qemu-966f3a38958acf18ae64031c014dcd58e2181211.tar.bz2 | |
target/riscv: zicfilp `lpad` impl and branch tracking
Implements setting lp expected when `jalr` is encountered and implements
`lpad` instruction of zicfilp. `lpad` instruction is taken out of
auipc x0, <imm_20>. This is an existing HINTNOP space. If `lpad` is
target of an indirect branch, cpu checks for 20 bit value in x7 upper
with 20 bit value embedded in `lpad`. If they don't match, cpu raises a
sw check exception with tval = 2.
Signed-off-by: Deepak Gupta <debug@rivosinc.com>
Co-developed-by: Jim Shu <jim.shu@sifive.com>
Co-developed-by: Andy Chiu <andy.chiu@sifive.com>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Reviewed-by: Alistair Francis <alistair.francis@wdc.com>
Message-ID: <20241008225010.1861630-8-debug@rivosinc.com>
Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
Diffstat (limited to 'scripts/qom-cast-macro-clean-cocci-gen.py')
0 files changed, 0 insertions, 0 deletions