[PULL,12/26] target/mips: Introduce cpu_supports_isa() taking CPUMIPSState argument

Commit Message

Philippe Mathieu-Daudé Dec. 13, 2020, 8:19 p.m. UTC

Introduce cpu_supports_isa() which takes a CPUMIPSState
argument, more useful at runtime when the CPU is created
(no need to call the extensive object_class_by_name()).

Signed-off-by: Philippe Mathieu-Daudé <[e-mail]>
Reviewed-by: Richard Henderson <[e-mail]>
Message-Id: <[e-mail]>
---
 target/mips/cpu.h | 1 +
 target/mips/cpu.c | 5 +++++
 2 files changed, 6 insertions(+)

Patch

diff --git a/target/mips/cpu.h b/target/mips/cpu.h
index 9c65c87bf99..e8bca75f237 100644
--- a/target/mips/cpu.h
+++ b/target/mips/cpu.h
@@ -1287,6 +1287,7 @@  int cpu_mips_signal_handler(int host_signum, void *pinfo, void *puc);
 #define CPU_RESOLVING_TYPE TYPE_MIPS_CPU
 
 bool cpu_type_supports_cps_smp(const char *cpu_type);
+bool cpu_supports_isa(const CPUMIPSState *env, uint64_t isa_mask);
 bool cpu_type_supports_isa(const char *cpu_type, uint64_t isa);
 void cpu_set_exception_base(int vp_index, target_ulong address);
 
diff --git a/target/mips/cpu.c b/target/mips/cpu.c
index 76d50b00b42..687e2680dd1 100644
--- a/target/mips/cpu.c
+++ b/target/mips/cpu.c
@@ -310,3 +310,8 @@  MIPSCPU *mips_cpu_create_with_clock(const char *cpu_type, Clock *cpu_refclk)
 
     return MIPS_CPU(cpu);
 }
+
+bool cpu_supports_isa(const CPUMIPSState *env, uint64_t isa_mask)
+{
+    return (env->cpu_model->insn_flags & isa_mask) != 0;
+}