Implement new instructions of hypervisor extension

We add new HFENCE, HLV, and HSV instructions for HS-mode which
are defined as part of the RISC-V hypervisor extension.

Signed-off-by: Anup Patel <anup.patel@wdc.com>

riscv/insns/hfence_gvma.h

@@ -0,0 +1,4 @@
+require_extension('H');
+require_privilege(PRV_S);
+require_novirt();
+MMU.flush_tlb();

riscv/insns/hfence_vvma.h

@@ -0,0 +1,4 @@
+require_extension('H');
+require_privilege(PRV_S);
+require_novirt();
+MMU.flush_tlb();

riscv/insns/hlv_b.h

@@ -0,0 +1,4 @@
+require_extension('H');
+require_privilege(get_field(STATE.hstatus, HSTATUS_HU) ? PRV_S : PRV_U);
+require_novirt();
+WRITE_RD(MMU.guest_load_int8(RS1));

riscv/insns/hlv_bu.h

@@ -0,0 +1,4 @@
+require_extension('H');
+require_privilege(get_field(STATE.hstatus, HSTATUS_HU) ? PRV_S : PRV_U);
+require_novirt();
+WRITE_RD(MMU.guest_load_uint8(RS1));

riscv/insns/hlv_d.h

@@ -0,0 +1,5 @@
+require_extension('H');
+require_rv64;
+require_privilege(get_field(STATE.hstatus, HSTATUS_HU) ? PRV_S : PRV_U);
+require_novirt();
+WRITE_RD(MMU.guest_load_int64(RS1));

riscv/insns/hlv_h.h

@@ -0,0 +1,4 @@
+require_extension('H');
+require_privilege(get_field(STATE.hstatus, HSTATUS_HU) ? PRV_S : PRV_U);
+require_novirt();
+WRITE_RD(MMU.guest_load_int16(RS1));

riscv/insns/hlv_hu.h

@@ -0,0 +1,4 @@
+require_extension('H');
+require_privilege(get_field(STATE.hstatus, HSTATUS_HU) ? PRV_S : PRV_U);
+require_novirt();
+WRITE_RD(MMU.guest_load_uint16(RS1));

riscv/insns/hlv_w.h

@@ -0,0 +1,4 @@
+require_extension('H');
+require_privilege(get_field(STATE.hstatus, HSTATUS_HU) ? PRV_S : PRV_U);
+require_novirt();
+WRITE_RD(MMU.guest_load_int32(RS1));

riscv/insns/hlv_wu.h

@@ -0,0 +1,5 @@
+require_extension('H');
+require_rv64;
+require_privilege(get_field(STATE.hstatus, HSTATUS_HU) ? PRV_S : PRV_U);
+require_novirt();
+WRITE_RD(MMU.guest_load_uint32(RS1));

riscv/insns/hlvx_hu.h

@@ -0,0 +1,4 @@
+require_extension('H');
+require_privilege(get_field(STATE.hstatus, HSTATUS_HU) ? PRV_S : PRV_U);
+require_novirt();
+WRITE_RD(MMU.guest_load_x_uint16(RS1));

riscv/insns/hlvx_wu.h

@@ -0,0 +1,4 @@
+require_extension('H');
+require_privilege(get_field(STATE.hstatus, HSTATUS_HU) ? PRV_S : PRV_U);
+require_novirt();
+WRITE_RD(MMU.guest_load_x_uint32(RS1));

riscv/insns/hsv_b.h

@@ -0,0 +1,4 @@
+require_extension('H');
+require_privilege(get_field(STATE.hstatus, HSTATUS_HU) ? PRV_S : PRV_U);
+require_novirt();
+MMU.guest_store_uint8(RS1, RS2);

riscv/insns/hsv_d.h

@@ -0,0 +1,5 @@
+require_extension('H');
+require_rv64;
+require_privilege(get_field(STATE.hstatus, HSTATUS_HU) ? PRV_S : PRV_U);
+require_novirt();
+MMU.guest_store_uint64(RS1, RS2);

riscv/insns/hsv_h.h

@@ -0,0 +1,4 @@
+require_extension('H');
+require_privilege(get_field(STATE.hstatus, HSTATUS_HU) ? PRV_S : PRV_U);
+require_novirt();
+MMU.guest_store_uint16(RS1, RS2);

riscv/insns/hsv_w.h

@@ -0,0 +1,4 @@
+require_extension('H');
+require_privilege(get_field(STATE.hstatus, HSTATUS_HU) ? PRV_S : PRV_U);
+require_novirt();
+MMU.guest_store_uint32(RS1, RS2);

riscv/riscv.mk.in

@@ -739,6 +739,23 @@ riscv_insn_ext_v = \
 	$(riscv_insn_ext_v_ctrl) \
 	$(riscv_insn_ext_v_ldst) \
 
+riscv_insn_ext_h = \
+	hfence_gvma \
+	hfence_vvma \
+	hlv_b \
+	hlv_bu \
+	hlv_h \
+	hlv_hu \
+	hlvx_hu \
+	hlv_w \
+	hlv_wu \
+	hlvx_wu \
+	hlv_d \
+	hsv_b \
+	hsv_h \
+	hsv_w \
+	hsv_d \
+
 riscv_insn_priv = \
 	csrrc \
 	csrrci \
@@ -765,6 +782,7 @@ riscv_insn_list = \
 	$(riscv_insn_ext_zfh) \
 	$(riscv_insn_ext_q) \
 	$(if $(HAVE_INT128),$(riscv_insn_ext_v),) \
+	$(riscv_insn_ext_h) \
 	$(riscv_insn_priv) \
 
 riscv_gen_srcs = \