[v6,0/4] Fix some PMP implementations

Message

Zong Li July 28, 2020, 8:26 a.m. UTC

This patch set contains the fixes for wrong index of pmpcfg CSR on rv64,
and the pmp range in CSR function table. After 3rd version of this patch
series, we also fix the PMP issues such as wrong physical address
translation and wrong ignoring PMP checking.

Changed in v6:
 - Mask low 12 bits of return value of riscv_cpu_get_phys_page_debug.
   Suggested by Alistair Francis.

Changed in v5:
 - Pick the suggestion which was lost in last version.

Changed in v4:
 - Refine the implementation. Suggested by Bin Meng.
 - Add fix for PMP checking was ignored.

Changed in v3:
 - Refine the implementation. Suggested by Bin Meng.
 - Add fix for wrong physical address translation.

Changed in v2:
 - Move out the shifting operation from loop. Suggested by Bin Meng.

Zong Li (4):
  target/riscv: Fix the range of pmpcfg of CSR funcion table
  target/riscv/pmp.c: Fix the index offset on RV64
  target/riscv: Fix the translation of physical address
  target/riscv: Change the TLB page size depends on PMP entries.

 target/riscv/cpu_helper.c | 15 +++++++---
 target/riscv/csr.c        |  2 +-
 target/riscv/pmp.c        | 63 ++++++++++++++++++++++++++++++++++++++-
 target/riscv/pmp.h        |  2 ++
 4 files changed, 76 insertions(+), 6 deletions(-)