[PATCH] target/riscv: Smepmp: Return error when access permission not allowed in PMP

[Himanshu Chauhan]

On an address match, skip checking for default permissions and return error
based on access defined in PMP configuration.

Fixes: 90b1fafce06 ("target/riscv: Smepmp: Skip applying default rules when 
address matches")
Signed-off-by: Himanshu Chauhan <hchau...@ventanamicro.com>
---
 target/riscv/pmp.c | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/target/riscv/pmp.c b/target/riscv/pmp.c
index 418738afd8..6238528282 100644
--- a/target/riscv/pmp.c
+++ b/target/riscv/pmp.c
@@ -435,8 +435,8 @@ bool pmp_hart_has_privs(CPURISCVState *env, target_ulong 
addr,
              * defined with PMP must be used. We shouldn't fallback on
              * finding default privileges.
              */
-            ret = true;
-            break;
+            ret = ((privs & *allowed_privs) == privs ? true : false);
+            goto _address_matched;
         }
     }
 
@@ -445,6 +445,7 @@ bool pmp_hart_has_privs(CPURISCVState *env, target_ulong 
addr,
         ret = pmp_hart_has_privs_default(env, privs, allowed_privs, mode);
     }
 
+ _address_matched:
     return ret;
 }
 
-- 
2.34.1