1 files changed, 34 insertions, 2 deletions
diff --git a/target/riscv/gdbstub.c b/target/riscv/gdbstub.c
index ded140e8d8..1a7947e019 100644
--- a/target/riscv/gdbstub.c
+++ b/target/riscv/gdbstub.c
@@ -373,6 +373,32 @@ static int riscv_gdb_set_csr(CPURISCVState *env, uint8_t *mem_buf, int n)
     return 0;
 }
 
+static int riscv_gdb_get_virtual(CPURISCVState *cs, uint8_t *mem_buf, int n)
+{
+    if (n == 0) {
+#ifdef CONFIG_USER_ONLY
+        return gdb_get_regl(mem_buf, 0);
+#else
+        return gdb_get_regl(mem_buf, cs->priv);
+#endif
+    }
+    return 0;
+}
+
+static int riscv_gdb_set_virtual(CPURISCVState *cs, uint8_t *mem_buf, int n)
+{
+    if (n == 0) {
+#ifndef CONFIG_USER_ONLY
+        cs->priv = ldtul_p(mem_buf) & 0x3;
+        if (cs->priv == PRV_H) {
+            cs->priv = PRV_S;
+        }
+#endif
+        return sizeof(target_ulong);
+    }
+    return 0;
+}
+
 void riscv_cpu_register_gdb_regs_for_features(CPUState *cs)
 {
     RISCVCPU *cpu = RISCV_CPU(cs);
@@ -384,7 +410,10 @@ void riscv_cpu_register_gdb_regs_for_features(CPUState *cs)
     }
 
     gdb_register_coprocessor(cs, riscv_gdb_get_csr, riscv_gdb_set_csr,
-                             4096, "riscv-32bit-csr.xml", 0);
+                             240, "riscv-32bit-csr.xml", 0);
+
+    gdb_register_coprocessor(cs, riscv_gdb_get_virtual, riscv_gdb_set_virtual,
+                             1, "riscv-32bit-virtual.xml", 0);
 #elif defined(TARGET_RISCV64)
     if (env->misa & RVF) {
         gdb_register_coprocessor(cs, riscv_gdb_get_fpu, riscv_gdb_set_fpu,
@@ -392,6 +421,9 @@ void riscv_cpu_register_gdb_regs_for_features(CPUState *cs)
     }
 
     gdb_register_coprocessor(cs, riscv_gdb_get_csr, riscv_gdb_set_csr,
-                             4096, "riscv-64bit-csr.xml", 0);
+                             240, "riscv-64bit-csr.xml", 0);
+
+    gdb_register_coprocessor(cs, riscv_gdb_get_virtual, riscv_gdb_set_virtual,
+                             1, "riscv-64bit-virtual.xml", 0);
 #endif
 }