On Sat, Nov 11, 2023 at 3:52 AM Palmer Dabbelt <pal...@rivosinc.com> wrote: > > Support for probing the Zicboz block size landed in Linux 6.6, which was > released a few weeks ago. This provides the user-configured block size > when Zicboz is enabled. > > Signed-off-by: Palmer Dabbelt <pal...@rivosinc.com>
Reviewed-by: Alistair Francis <alistair.fran...@wdc.com> Alistair > --- > linux-user/syscall.c | 6 ++++++ > 1 file changed, 6 insertions(+) > > diff --git a/linux-user/syscall.c b/linux-user/syscall.c > index 65ac3ac796..7caacf43d6 100644 > --- a/linux-user/syscall.c > +++ b/linux-user/syscall.c > @@ -8808,6 +8808,8 @@ static int do_getdents64(abi_long dirfd, abi_long arg2, > abi_long count) > #define RISCV_HWPROBE_MISALIGNED_UNSUPPORTED (4 << 0) > #define RISCV_HWPROBE_MISALIGNED_MASK (7 << 0) > > +#define RISCV_HWPROBE_KEY_ZICBOZ_BLOCK_SIZE 6 > + > struct riscv_hwprobe { > abi_llong key; > abi_ullong value; > @@ -8860,6 +8862,10 @@ static void risc_hwprobe_fill_pairs(CPURISCVState *env, > case RISCV_HWPROBE_KEY_CPUPERF_0: > __put_user(RISCV_HWPROBE_MISALIGNED_FAST, &pair->value); > break; > + case RISCV_HWPROBE_KEY_ZICBOZ_BLOCK_SIZE: > + value = cfg->ext_zicboz ? cfg->cboz_blocksize : 0; > + __put_user(value, &pair->value); > + break; > default: > __put_user(-1, &pair->key); > break; > -- > 2.42.1 > >