mseccfg is defined in version 20250508 of the privileged specification
to be 64 bits in size.  Update relevant function arguments.

Signed-off-by: Anton Johansson <anjo@rev.ng>
---
 target/riscv/cpu.h | 2 +-
 target/riscv/pmp.h | 4 ++--
 target/riscv/pmp.c | 4 ++--
 3 files changed, 5 insertions(+), 5 deletions(-)

diff --git a/target/riscv/cpu.h b/target/riscv/cpu.h
index f8ab66adb3..4c90b8b035 100644
--- a/target/riscv/cpu.h
+++ b/target/riscv/cpu.h
@@ -457,7 +457,7 @@ struct CPUArchState {
 
     /* physical memory protection */
     pmp_table_t pmp_state;
-    target_ulong mseccfg;
+    uint64_t mseccfg;
 
     /* trigger module */
     uint16_t mcontext;
diff --git a/target/riscv/pmp.h b/target/riscv/pmp.h
index 271cf24169..e322904637 100644
--- a/target/riscv/pmp.h
+++ b/target/riscv/pmp.h
@@ -69,8 +69,8 @@ void pmpcfg_csr_write(CPURISCVState *env, uint32_t reg_index,
                       target_ulong val);
 target_ulong pmpcfg_csr_read(CPURISCVState *env, uint32_t reg_index);
 
-void mseccfg_csr_write(CPURISCVState *env, target_ulong val);
-target_ulong mseccfg_csr_read(CPURISCVState *env);
+void mseccfg_csr_write(CPURISCVState *env, uint64_t val);
+uint64_t mseccfg_csr_read(CPURISCVState *env);
 
 void pmpaddr_csr_write(CPURISCVState *env, uint32_t addr_index,
                        target_ulong val);
diff --git a/target/riscv/pmp.c b/target/riscv/pmp.c
index 72f1372a49..85199c7387 100644
--- a/target/riscv/pmp.c
+++ b/target/riscv/pmp.c
@@ -597,7 +597,7 @@ target_ulong pmpaddr_csr_read(CPURISCVState *env, uint32_t addr_index)
 /*
  * Handle a write to a mseccfg CSR
  */
-void mseccfg_csr_write(CPURISCVState *env, target_ulong val)
+void mseccfg_csr_write(CPURISCVState *env, uint64_t val)
 {
     int i;
     uint64_t mask = MSECCFG_MMWP | MSECCFG_MML;
@@ -643,7 +643,7 @@ void mseccfg_csr_write(CPURISCVState *env, target_ulong val)
 /*
  * Handle a read from a mseccfg CSR
  */
-target_ulong mseccfg_csr_read(CPURISCVState *env)
+uint64_t mseccfg_csr_read(CPURISCVState *env)
 {
     trace_mseccfg_csr_read(env->mhartid, env->mseccfg);
     return env->mseccfg;
-- 
2.51.0