diff --git a/target/riscv/cpu.h b/target/riscv/cpu.h index bd519c9090..9e55b2f5b1 100644 --- a/target/riscv/cpu.h +++ b/target/riscv/cpu.h @@ -393,6 +393,7 @@ FIELD(TB_FLAGS, SEW, 5, 3) FIELD(TB_FLAGS, VILL, 8, 1) /* Is a Hypervisor instruction load/store allowed? */ FIELD(TB_FLAGS, HLSX, 9, 1) +FIELD(TB_FLAGS, MSTATUS_HS_FS, 10, 2) bool riscv_cpu_is_32bit(CPURISCVState *env); @@ -449,6 +450,9 @@ static inline void cpu_get_tb_cpu_state(CPURISCVState *env, target_ulong *pc, get_field(env->hstatus, HSTATUS_HU))) { flags = FIELD_DP32(flags, TB_FLAGS, HLSX, 1); } + + flags = FIELD_DP32(flags, TB_FLAGS, MSTATUS_HS_FS, + get_field(env->mstatus_hs, MSTATUS_FS)); } #endif diff --git a/target/riscv/translate.c b/target/riscv/translate.c index b2d3444bc5..d2442f0cf5 100644 --- a/target/riscv/translate.c +++ b/target/riscv/translate.c @@ -58,6 +58,7 @@ typedef struct DisasContext { target_ulong misa; uint32_t opcode; uint32_t mstatus_fs; + uint32_t mstatus_hs_fs; uint32_t mem_idx; /* Remember the rounding mode encoded in the previous fp instruction, which we have already installed into env->fp_status. Or -1 for @@ -280,27 +281,29 @@ static void gen_jal(DisasContext *ctx, int rd, target_ulong imm) static void mark_fs_dirty(DisasContext *ctx) { TCGv tmp; - target_ulong sd; + target_ulong sd = is_32bit(ctx) ? MSTATUS32_SD : MSTATUS64_SD; - if (ctx->mstatus_fs == MSTATUS_FS) { - return; + if (ctx->mstatus_fs != MSTATUS_FS) { + /* Remember the state change for the rest of the TB. */ + ctx->mstatus_fs = MSTATUS_FS; + + tmp = tcg_temp_new(); + tcg_gen_ld_tl(tmp, cpu_env, offsetof(CPURISCVState, mstatus)); + tcg_gen_ori_tl(tmp, tmp, MSTATUS_FS | sd); + tcg_gen_st_tl(tmp, cpu_env, offsetof(CPURISCVState, mstatus)); + tcg_temp_free(tmp); } - /* Remember the state change for the rest of the TB. */ - ctx->mstatus_fs = MSTATUS_FS; - tmp = tcg_temp_new(); - sd = is_32bit(ctx) ? MSTATUS32_SD : MSTATUS64_SD; + if (ctx->virt_enabled && ctx->mstatus_hs_fs != MSTATUS_FS) { + /* Remember the stage change for the rest of the TB. */ + ctx->mstatus_hs_fs = MSTATUS_FS; - tcg_gen_ld_tl(tmp, cpu_env, offsetof(CPURISCVState, mstatus)); - tcg_gen_ori_tl(tmp, tmp, MSTATUS_FS | sd); - tcg_gen_st_tl(tmp, cpu_env, offsetof(CPURISCVState, mstatus)); - - if (ctx->virt_enabled) { + tmp = tcg_temp_new(); tcg_gen_ld_tl(tmp, cpu_env, offsetof(CPURISCVState, mstatus_hs)); tcg_gen_ori_tl(tmp, tmp, MSTATUS_FS | sd); tcg_gen_st_tl(tmp, cpu_env, offsetof(CPURISCVState, mstatus_hs)); + tcg_temp_free(tmp); } - tcg_temp_free(tmp); } #else static inline void mark_fs_dirty(DisasContext *ctx) { } @@ -539,6 +542,7 @@ static void riscv_tr_init_disas_context(DisasContextBase *dcbase, CPUState *cs) ctx->frm = -1; /* unknown rounding mode */ ctx->ext_ifencei = cpu->cfg.ext_ifencei; ctx->vlen = cpu->cfg.vlen; + ctx->mstatus_hs_fs = FIELD_EX32(tb_flags, TB_FLAGS, MSTATUS_HS_FS); ctx->hlsx = FIELD_EX32(tb_flags, TB_FLAGS, HLSX); ctx->vill = FIELD_EX32(tb_flags, TB_FLAGS, VILL); ctx->sew = FIELD_EX32(tb_flags, TB_FLAGS, SEW);