On Mai 02 2023, Palmer Dabbelt wrote:
> On Tue, 02 May 2023 06:44:00 PDT (-0700), sch...@suse.de wrote:
>> Signed-off-by: Andreas Schwab <sch...@suse.de>
>> ---
>> linux-user/syscall.c | 30 ++++++++++++++++++++++++++++--
>> 1 file changed, 28 insertions(+), 2 deletions(-)
>>
>> diff --git a/linux-user/syscall.c b/linux-user/syscall.c
>> index 69f740ff98..c72456a34b 100644
>> --- a/linux-user/syscall.c
>> +++ b/linux-user/syscall.c
>> @@ -8231,7 +8231,8 @@ void target_exception_dump(CPUArchState *env, const
>> char *fmt, int code)
>> }
>>
>> #if HOST_BIG_ENDIAN != TARGET_BIG_ENDIAN || \
>> - defined(TARGET_SPARC) || defined(TARGET_M68K) || defined(TARGET_HPPA)
>> + defined(TARGET_SPARC) || defined(TARGET_M68K) || defined(TARGET_HPPA)
>> || \
>> + defined(TARGET_RISCV)
>> static int is_proc(const char *filename, const char *entry)
>> {
>> return strcmp(filename, entry) == 0;
>> @@ -8309,6 +8310,31 @@ static int open_cpuinfo(CPUArchState *cpu_env, int fd)
>> }
>> #endif
>>
>> +#if defined(TARGET_RISCV)
>> +static int open_cpuinfo(CPUArchState *cpu_env, int fd)
>> +{
>> + int i, num_cpus;
>> +
>> + num_cpus = sysconf(_SC_NPROCESSORS_ONLN);
>> + for (i = 0; i < num_cpus; i++) {
>> + dprintf(fd, "processor\t: %d\n", i);
>> + dprintf(fd, "hart\t\t: %d\n", i);
>> +#if defined(TARGET_RISCV32)
>> + dprintf(fd, "isa\t\t: rv32imafdc\n");
>> + dprintf(fd, "mmu\t\t: sv32\n");
>> +#endif
>> +#if defined(TARGET_RISCV64)
>> + dprintf(fd, "isa\t\t: rv64imafdc\n");
>> + dprintf(fd, "mmu\t\t: sv57\n");
>
> Unless I'm misunderstanding something, we've got support for both non-sv57
> system (via sv* CPU properties)
The mmu type is not available in linux-user emulation. This just
matches the default the system emulation would use.
> and non-GC systems (also via CPU properties).
None of the currently defined cpus are non-GC cpus (except sifive_e, but
that is not suitable for user-space anyway), and there doesn't appear to
be any properties defined for changing the supported extensions.
--
Andreas Schwab, SUSE Labs, sch...@suse.de
GPG Key fingerprint = 0196 BAD8 1CE9 1970 F4BE 1748 E4D4 88E3 0EEA B9D7
"And now for something completely different."
