8315195: RISC-V: Update hwprobe query for new extensions

Reviewed-by: fyang, fjiang, luhenry

Author: robehn

src/hotspot/os_cpu/linux_riscv/riscv_hwprobe.cpp

@@ -45,6 +45,10 @@
 #define RISCV_HWPROBE_KEY_IMA_EXT_0     4
 #define   RISCV_HWPROBE_IMA_FD                  (1 << 0)
 #define   RISCV_HWPROBE_IMA_C                   (1 << 1)
+#define   RISCV_HWPROBE_IMA_V                   (1 << 2)
+#define   RISCV_HWPROBE_EXT_ZBA                 (1 << 3)
+#define   RISCV_HWPROBE_EXT_ZBB                 (1 << 4)
+#define   RISCV_HWPROBE_EXT_ZBS                 (1 << 5)
 
 #define RISCV_HWPROBE_KEY_CPUPERF_0     5
 #define   RISCV_HWPROBE_MISALIGNED_UNKNOWN      (0 << 0)
@@ -129,6 +133,18 @@ void RiscvHwprobe::add_features_from_query_result() {
   if (is_set(RISCV_HWPROBE_KEY_IMA_EXT_0, RISCV_HWPROBE_IMA_C)) {
     VM_Version::ext_C.enable_feature();
   }
+  if (is_set(RISCV_HWPROBE_KEY_IMA_EXT_0, RISCV_HWPROBE_IMA_V)) {
+    VM_Version::ext_V.enable_feature();
+  }
+  if (is_set(RISCV_HWPROBE_KEY_IMA_EXT_0, RISCV_HWPROBE_EXT_ZBA)) {
+    VM_Version::ext_Zba.enable_feature();
+  }
+  if (is_set(RISCV_HWPROBE_KEY_IMA_EXT_0, RISCV_HWPROBE_EXT_ZBB)) {
+    VM_Version::ext_Zbb.enable_feature();
+  }
+  if (is_set(RISCV_HWPROBE_KEY_IMA_EXT_0, RISCV_HWPROBE_EXT_ZBS)) {
+    VM_Version::ext_Zbs.enable_feature();
+  }
   if (is_valid(RISCV_HWPROBE_KEY_CPUPERF_0)) {
     VM_Version::unaligned_access.enable_feature(
        query[RISCV_HWPROBE_KEY_CPUPERF_0].value & RISCV_HWPROBE_MISALIGNED_MASK);

src/hotspot/os_cpu/linux_riscv/vm_version_linux_riscv.cpp

@@ -224,19 +224,11 @@ void VM_Version::vendor_features() {
 
 void VM_Version::rivos_features() {
   // Enable common features not dependent on marchid/mimpid.
-  ext_I.enable_feature();
-  ext_M.enable_feature();
-  ext_A.enable_feature();
-  ext_F.enable_feature();
-  ext_D.enable_feature();
-  ext_C.enable_feature();
-  ext_H.enable_feature();
-  ext_V.enable_feature();
-
   ext_Zicbom.enable_feature();
   ext_Zicboz.enable_feature();
   ext_Zicbop.enable_feature();
 
+  // If we running on a pre-6.5 kernel
   ext_Zba.enable_feature();
   ext_Zbb.enable_feature();
   ext_Zbs.enable_feature();