diff options
| author | Zong Li <zong.li@sifive.com> | 2020-07-28 16:26:17 +0800 |
|---|---|---|
| committer | Alistair Francis <alistair.francis@wdc.com> | 2020-08-21 22:37:55 -0700 |
| commit | af3fc195e3c8e98b62eca3e4ee927f1965381dc3 (patch) | |
| tree | 22c7f1ea1203cb96659676c19143af376b5fcf08 /target/riscv/pmp.h | |
| parent | 9ef82119b10d996cef63af679af5c1a7a85e6c19 (diff) | |
target/riscv: Change the TLB page size depends on PMP entries.
The minimum granularity of PMP is 4 bytes, it is small than 4KB page
size, therefore, the pmp checking would be ignored if its range doesn't
start from the alignment of one page. This patch detects the pmp entries
and sets the small page size to TLB if there is a PMP entry which cover
the page size.
Signed-off-by: Zong Li <zong.li@sifive.com>
Reviewed-by: Alistair Francis <alistair.francis@wdc.com>
Message-Id: <6b0bf48662ef26ab4c15381a08e78a74ebd7ca79.1595924470.git.zong.li@sifive.com>
Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
Diffstat (limited to 'target/riscv/pmp.h')
| -rw-r--r-- | target/riscv/pmp.h | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/target/riscv/pmp.h b/target/riscv/pmp.h index 8e19793132..6a8f072871 100644 --- a/target/riscv/pmp.h +++ b/target/riscv/pmp.h @@ -60,5 +60,7 @@ void pmpaddr_csr_write(CPURISCVState *env, uint32_t addr_index, target_ulong pmpaddr_csr_read(CPURISCVState *env, uint32_t addr_index); bool pmp_hart_has_privs(CPURISCVState *env, target_ulong addr, target_ulong size, pmp_priv_t priv, target_ulong mode); +bool pmp_is_range_in_tlb(CPURISCVState *env, hwaddr tlb_sa, + target_ulong *tlb_size); #endif |