On 4/15/22 02:40, Xiaojuan Yang wrote:
+void loongarch_cpu_register_gdb_regs_for_features(CPUState *cs)
+{
+ gdb_register_coprocessor(cs, loongarch_gdb_get_fpu, loongarch_gdb_set_fpu,
+ 41, "loongarch-fpu64.xml", 0);
+}
+
+int loongarch_read_qxfer(CPUState *cs, const char *annex, uint8_t *read_buf,
+ unsigned long offset, unsigned long len)
+{
+ if (strncmp(annex, "cpucfg", sizeof("cpucfg") - 1) == 0) {
+ if (offset % 4 != 0 || len % 4 != 0) {
+ return 0;
+ }
+
+ size_t i;
+ for (i = offset; i < offset + len; i += 4)
+ ((uint32_t *)read_buf)[(i - offset) / 4] =
+ helper_cpucfg(&(LOONGARCH_CPU(cs)->env), i / 4);
+ return 32 * 4;
+ }
+ return 0;
+}
+
+int loongarch_write_qxfer(CPUState *cs, const char *annex,
+ const uint8_t *write_buf, unsigned long offset,
+ unsigned long len)
+{
+ return 0;
+}
These functions are never used.
The first one should be called from loongarch_cpu_realizefn. I'm not sure what the other
two are supposed to be.
r~
