[RFC PATCH v2 6/6] target/riscv: Enable updates for pointer masking variables and thus enable pointer masking extension

[Alexey Baturo]

From: Alexey Baturo <baturo.ale...@gmail.com>

Signed-off-by: Alexey Baturo <baturo.ale...@gmail.com>
---
 target/riscv/cpu.c        | 9 +++++++++
 target/riscv/cpu_helper.c | 1 +
 target/riscv/csr.c        | 4 ++++
 target/riscv/machine.c    | 1 +
 target/riscv/pmp.c        | 1 +
 5 files changed, 16 insertions(+)

diff --git a/target/riscv/cpu.c b/target/riscv/cpu.c
index 1e6571ce99..1d20e6a978 100644
--- a/target/riscv/cpu.c
+++ b/target/riscv/cpu.c
@@ -153,6 +153,9 @@ const RISCVIsaExtData isa_edata_arr[] = {
     ISA_EXT_DATA_ENTRY(svinval, PRIV_VERSION_1_12_0, ext_svinval),
     ISA_EXT_DATA_ENTRY(svnapot, PRIV_VERSION_1_12_0, ext_svnapot),
     ISA_EXT_DATA_ENTRY(svpbmt, PRIV_VERSION_1_12_0, ext_svpbmt),
+    ISA_EXT_DATA_ENTRY(ssnpm, PRIV_VERSION_1_12_0, ext_ssnpm),
+    ISA_EXT_DATA_ENTRY(smnpm, PRIV_VERSION_1_12_0, ext_smnpm),
+    ISA_EXT_DATA_ENTRY(smmpm, PRIV_VERSION_1_12_0, ext_smmpm),
     ISA_EXT_DATA_ENTRY(xtheadba, PRIV_VERSION_1_11_0, ext_xtheadba),
     ISA_EXT_DATA_ENTRY(xtheadbb, PRIV_VERSION_1_11_0, ext_xtheadbb),
     ISA_EXT_DATA_ENTRY(xtheadbs, PRIV_VERSION_1_11_0, ext_xtheadbs),
@@ -897,6 +900,7 @@ static void riscv_cpu_reset_hold(Object *obj)
     pmp_unlock_entries(env);
 #endif
     env->xl = riscv_cpu_mxl(env);
+    riscv_cpu_update_mask(env);
     cs->exception_index = RISCV_EXCP_NONE;
     env->load_res = -1;
     set_default_nan_mode(1, &env->fp_status);
@@ -1337,6 +1341,11 @@ const RISCVCPUMultiExtConfig riscv_cpu_extensions[] = {
 
     MULTI_EXT_CFG_BOOL("zmmul", ext_zmmul, false),
 
+    /* Zjpm v0.8 extensions */
+    MULTI_EXT_CFG_BOOL("ssnpm", ext_ssnpm, false),
+    MULTI_EXT_CFG_BOOL("smnpm", ext_smnpm, false),
+    MULTI_EXT_CFG_BOOL("smmpm", ext_smmpm, false),
+
     MULTI_EXT_CFG_BOOL("zca", ext_zca, false),
     MULTI_EXT_CFG_BOOL("zcb", ext_zcb, false),
     MULTI_EXT_CFG_BOOL("zcd", ext_zcd, false),
diff --git a/target/riscv/cpu_helper.c b/target/riscv/cpu_helper.c
index 8e2751fef4..c2bc737dd7 100644
--- a/target/riscv/cpu_helper.c
+++ b/target/riscv/cpu_helper.c
@@ -723,6 +723,7 @@ void riscv_cpu_set_mode(CPURISCVState *env, target_ulong 
newpriv)
     /* tlb_flush is unnecessary as mode is contained in mmu_idx */
     env->priv = newpriv;
     env->xl = cpu_recompute_xl(env);
+    riscv_cpu_update_mask(env);
 
     /*
      * Clear the load reservation - otherwise a reservation placed in one
diff --git a/target/riscv/csr.c b/target/riscv/csr.c
index a67ba30494..5336d91dd8 100644
--- a/target/riscv/csr.c
+++ b/target/riscv/csr.c
@@ -1348,6 +1348,7 @@ static RISCVException write_mstatus(CPURISCVState *env, 
int csrno,
         env->xl = cpu_recompute_xl(env);
     }
 
+    riscv_cpu_update_mask(env);
     return RISCV_EXCP_NONE;
 }
 
@@ -2039,6 +2040,7 @@ static RISCVException write_menvcfg(CPURISCVState *env, 
int csrno,
     }
     env->menvcfg = (env->menvcfg & ~mask) | (val & mask);
 
+    riscv_cpu_update_mask(env);
     return RISCV_EXCP_NONE;
 }
 
@@ -2093,6 +2095,8 @@ static RISCVException write_senvcfg(CPURISCVState *env, 
int csrno,
     }
 
     env->senvcfg = (env->senvcfg & ~mask) | (val & mask);
+
+    riscv_cpu_update_mask(env);
     return RISCV_EXCP_NONE;
 }
 
diff --git a/target/riscv/machine.c b/target/riscv/machine.c
index 5e9c5b43ab..41ad30c8e1 100644
--- a/target/riscv/machine.c
+++ b/target/riscv/machine.c
@@ -261,6 +261,7 @@ static int riscv_cpu_post_load(void *opaque, int version_id)
     CPURISCVState *env = &cpu->env;
 
     env->xl = cpu_recompute_xl(env);
+    riscv_cpu_update_mask(env);
     return 0;
 }
 
diff --git a/target/riscv/pmp.c b/target/riscv/pmp.c
index 893ccd58d8..2cc08e58c5 100644
--- a/target/riscv/pmp.c
+++ b/target/riscv/pmp.c
@@ -607,6 +607,7 @@ void mseccfg_csr_write(CPURISCVState *env, target_ulong val)
     }
 
     env->mseccfg = val;
+    riscv_cpu_update_mask(env);
 }
 
 /*
-- 
2.34.1