[Qemu-devel] [PULL 05/10] RISC-V: Add priv_ver to DisasContext

[Palmer Dabbelt <palmer@sifive.com>]

From: Alistair Francis <Alistair.Francis@wdc.com>

The gen methods should access state from DisasContext. Add priv_ver
field to the DisasContext struct.

Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Palmer Dabbelt <palmer@sifive.com>
---
 target/riscv/translate.c | 7 +++++--
 1 file changed, 5 insertions(+), 2 deletions(-)

diff --git a/target/riscv/translate.c b/target/riscv/translate.c
index 0581b3c1f7d7..35eb6bdfe099 100644
--- a/target/riscv/translate.c
+++ b/target/riscv/translate.c
@@ -43,6 +43,7 @@ typedef struct DisasContext {
     DisasContextBase base;
     /* pc_succ_insn points to the instruction following base.pc_next */
     target_ulong pc_succ_insn;
+    target_ulong priv_ver;
     uint32_t opcode;
     uint32_t mstatus_fs;
     uint32_t mem_idx;
@@ -1330,7 +1331,7 @@ static void gen_system(CPURISCVState *env, DisasContext *ctx, uint32_t opc,
 #ifndef CONFIG_USER_ONLY
     /* Extract funct7 value and check whether it matches SFENCE.VMA */
     if ((opc == OPC_RISC_ECALL) && ((csr >> 5) == 9)) {
-        if (env->priv_ver == PRIV_VERSION_1_10_0) {
+        if (ctx->priv_ver == PRIV_VERSION_1_10_0) {
             /* sfence.vma */
             /* TODO: handle ASID specific fences */
             gen_helper_tlb_flush(cpu_env);
@@ -1384,7 +1385,7 @@ static void gen_system(CPURISCVState *env, DisasContext *ctx, uint32_t opc,
             gen_helper_wfi(cpu_env);
             break;
         case 0x104: /* SFENCE.VM */
-            if (env->priv_ver <= PRIV_VERSION_1_09_1) {
+            if (ctx->priv_ver <= PRIV_VERSION_1_09_1) {
                 gen_helper_tlb_flush(cpu_env);
             } else {
                 gen_exception_illegal(ctx);
@@ -1854,10 +1855,12 @@ static void decode_opc(CPURISCVState *env, DisasContext *ctx)
 static void riscv_tr_init_disas_context(DisasContextBase *dcbase, CPUState *cs)
 {
     DisasContext *ctx = container_of(dcbase, DisasContext, base);
+    CPURISCVState *env = cs->env_ptr;
 
     ctx->pc_succ_insn = ctx->base.pc_first;
     ctx->mem_idx = ctx->base.tb->flags & TB_FLAGS_MMU_MASK;
     ctx->mstatus_fs = ctx->base.tb->flags & TB_FLAGS_MSTATUS_FS;
+    ctx->priv_ver = env->priv_ver;
     ctx->frm = -1;  /* unknown rounding mode */
 }
 
-- 
2.18.1