[v3] target/riscv: Fix PMP address alignment

[PATCH v3 0/2] target/riscv: Fix PMP address alignment

Jay Chang posted 2 patches 1 month, 1 week ago

Diff against v2
Download series mbox

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git fetch https://github.com/patchew-project/qemu tags/patchew/20251231045000.30120-1-jay.chang@sifive.com

Maintainers: Palmer Dabbelt <palmer@dabbelt.com>, Alistair Francis <alistair.francis@wdc.com>, Weiwei Li <liwei1518@gmail.com>, Daniel Henrique Barboza <dbarboza@ventanamicro.com>, Liu Zhiwei <zhiwei_liu@linux.alibaba.com>

target/riscv/pmp.c | 22 ++++++++++++++++------
1 file changed, 16 insertions(+), 6 deletions(-)

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[PATCH v3 0/2] target/riscv: Fix PMP address alignment

Posted by Jay Chang 1 month, 1 week ago

This series fixes PMP address alignment to comply with the RISC-V
specification WARL (Write-Any, Read-Legal) semantics.

When configuring pmpcfg (TOR, NA4, or NAPOT) and pmpaddr, if the
value is smaller than the PMP granularity, it needs to be aligned
to the PMP granularity.

Changes in v3:
- Use ROUND_UP() macro for NAPOT address alignment

Changes in v2:
- Fixed commit message grammar ("it needs to be aligned")
- Use ROUND_DOWN() macro for TOR address alignment to improve
  code readability

Jay Chang (2):
  target/riscv: Align pmp size to pmp-granularity
  target/riscv: Use macros for PMP address alignment

 target/riscv/pmp.c | 22 ++++++++++++++++------
 1 file changed, 16 insertions(+), 6 deletions(-)

-- 
2.48.1