The isa string should begin with either rv64 or rv32. Otherwise, it is
an incorrect isa string. Currently, the string parsing continues even if
it doesnot begin with current XLEN.
Fix this by checking if it found "rv64" or "rv32" in the beginning.
Signed-off-by: Atish Patra <atishp@rivosinc.com>
for_each_of_cpu_node(node) {
unsigned long this_hwcap = 0;
DECLARE_BITMAP(this_isa, RISCV_ISA_EXT_MAX);
+ const char *temp;
if (riscv_of_processor_hartid(node) < 0)
continue;
continue;
}
+ temp = isa;
#if IS_ENABLED(CONFIG_32BIT)
if (!strncmp(isa, "rv32", 4))
isa += 4;
if (!strncmp(isa, "rv64", 4))
isa += 4;
#endif
+ /* The riscv,isa DT property must start with rv64 or rv32 */
+ if (temp == isa)
+ continue;
bitmap_zero(this_isa, RISCV_ISA_EXT_MAX);
for (; *isa; ++isa) {
const char *ext = isa++;