[PATCH v4 2/7] target/riscv: Adjust PMP size for no-MMU RV64 QEMU running RV32

LIU Zhiwei posted 7 patches 4 months, 2 weeks ago
Maintainers: Palmer Dabbelt <palmer@dabbelt.com>, Alistair Francis <alistair.francis@wdc.com>, Bin Meng <bmeng.cn@gmail.com>, Weiwei Li <liwei1518@gmail.com>, Daniel Henrique Barboza <dbarboza@ventanamicro.com>, Liu Zhiwei <zhiwei_liu@linux.alibaba.com>, Cleber Rosa <crosa@redhat.com>, "Philippe Mathieu-Daudé" <philmd@linaro.org>, Wainer dos Santos Moschetta <wainersm@redhat.com>, Beraldo Leal <bleal@redhat.com>
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[PATCH v4 2/7] target/riscv: Adjust PMP size for no-MMU RV64 QEMU running RV32
Posted by LIU Zhiwei 4 months, 2 weeks ago
From: TANG Tiancheng <tangtiancheng.ttc@alibaba-inc.com>

Ensure pmp_size is correctly determined using mxl for RV32
in RV64 QEMU.

Signed-off-by: TANG Tiancheng <tangtiancheng.ttc@alibaba-inc.com>
Reviewed-by: Liu Zhiwei <zhiwei_liu@linux.alibaba.com>
Reviewed-by: Alistair Francis <alistair.francis@wdc.com>
---
 target/riscv/pmp.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/target/riscv/pmp.c b/target/riscv/pmp.c
index 9eea397e72..5e74b7220f 100644
--- a/target/riscv/pmp.c
+++ b/target/riscv/pmp.c
@@ -326,7 +326,7 @@ bool pmp_hart_has_privs(CPURISCVState *env, hwaddr addr,
              */
             pmp_size = -(addr | TARGET_PAGE_MASK);
         } else {
-            pmp_size = sizeof(target_ulong);
+            pmp_size = 2 << riscv_cpu_mxl(env);
         }
     } else {
         pmp_size = size;
-- 
2.43.0