| Message ID | 20160819190903.10974-5-paul.burton@imgtec.com (mailing list archive) |
|---|---|
| State | New, archived |
| Headers | show |
On Fri, Aug 19, 2016 at 08:09:00PM +0100, Paul Burton wrote: > Provide a new cpu_supports_isa function which allows callers to > determine whether a CPU supports one of the ISA_ flags, by testing > whether the associated struct mips_def_t sets the ISA flags in its > insn_flags field. > > An example use of this is to allow boards which generate bootloader code > to determine the properties of the CPU that will be used, for example > whether the CPU is 64 bit or which architecture revision it implements. > > Signed-off-by: Paul Burton <paul.burton@imgtec.com> > --- > target-mips/cpu.h | 1 + > target-mips/translate.c | 10 ++++++++++ > 2 files changed, 11 insertions(+) Reviewed-by: Leon Alrae <leon.alrae@imgtec.com>
diff --git a/target-mips/cpu.h b/target-mips/cpu.h index 5182dc7..cbd17df 100644 --- a/target-mips/cpu.h +++ b/target-mips/cpu.h @@ -812,6 +812,7 @@ int cpu_mips_signal_handler(int host_signum, void *pinfo, void *puc); #define cpu_init(cpu_model) CPU(cpu_mips_init(cpu_model)) bool cpu_supports_cps_smp(const char *cpu_model); +bool cpu_supports_isa(const char *cpu_model, unsigned int isa); void cpu_set_exception_base(int vp_index, target_ulong address); /* TODO QOM'ify CPU reset and remove */ diff --git a/target-mips/translate.c b/target-mips/translate.c index bab52cb..c212e4f 100644 --- a/target-mips/translate.c +++ b/target-mips/translate.c @@ -20192,6 +20192,16 @@ bool cpu_supports_cps_smp(const char *cpu_model) return (def->CP0_Config3 & (1 << CP0C3_CMGCR)) != 0; } +bool cpu_supports_isa(const char *cpu_model, unsigned int isa) +{ + const mips_def_t *def = cpu_mips_find_by_name(cpu_model); + if (!def) { + return false; + } + + return (def->insn_flags & isa) != 0; +} + void cpu_set_exception_base(int vp_index, target_ulong address) { MIPSCPU *vp = MIPS_CPU(qemu_get_cpu(vp_index));
Provide a new cpu_supports_isa function which allows callers to determine whether a CPU supports one of the ISA_ flags, by testing whether the associated struct mips_def_t sets the ISA flags in its insn_flags field. An example use of this is to allow boards which generate bootloader code to determine the properties of the CPU that will be used, for example whether the CPU is 64 bit or which architecture revision it implements. Signed-off-by: Paul Burton <paul.burton@imgtec.com> --- target-mips/cpu.h | 1 + target-mips/translate.c | 10 ++++++++++ 2 files changed, 11 insertions(+)