[v3,37/37] target/riscv: configure and turn on packed extension from command line

Commit Message

LIU Zhiwei June 24, 2021, 10:55 a.m. UTC

Packed extension is default off. The only way to use packed extension is
1. use cpu rv32 or rv64
2. turn on it by command line
   "-cpu rv32,x-p=true,Zpsfoperand=true,pext_spec=v0.9.4".

Zpsfoperand is whether to support Zpsfoperand sub-extension,
default value is true.
pext_ver is the packed specification version, default value is v0.9.4.
These properties can be specified with other values.

Signed-off-by: LIU Zhiwei <[e-mail]>
---
 target/riscv/cpu.c | 3 +++
 1 file changed, 3 insertions(+)

Patch

diff --git a/target/riscv/cpu.c b/target/riscv/cpu.c
index 9d8cf60a1c..21020b902e 100644
--- a/target/riscv/cpu.c
+++ b/target/riscv/cpu.c
@@ -618,14 +618,17 @@  static Property riscv_cpu_properties[] = {
     DEFINE_PROP_BOOL("x-b", RISCVCPU, cfg.ext_b, false),
     DEFINE_PROP_BOOL("x-h", RISCVCPU, cfg.ext_h, false),
     DEFINE_PROP_BOOL("x-v", RISCVCPU, cfg.ext_v, false),
+    DEFINE_PROP_BOOL("x-p", RISCVCPU, cfg.ext_p, false),
     DEFINE_PROP_BOOL("Counters", RISCVCPU, cfg.ext_counters, true),
     DEFINE_PROP_BOOL("Zifencei", RISCVCPU, cfg.ext_ifencei, true),
     DEFINE_PROP_BOOL("Zicsr", RISCVCPU, cfg.ext_icsr, true),
     DEFINE_PROP_STRING("priv_spec", RISCVCPU, cfg.priv_spec),
     DEFINE_PROP_STRING("bext_spec", RISCVCPU, cfg.bext_spec),
+    DEFINE_PROP_STRING("pext_spec", RISCVCPU, cfg.pext_spec),
     DEFINE_PROP_STRING("vext_spec", RISCVCPU, cfg.vext_spec),
     DEFINE_PROP_UINT16("vlen", RISCVCPU, cfg.vlen, 128),
     DEFINE_PROP_UINT16("elen", RISCVCPU, cfg.elen, 64),
+    DEFINE_PROP_BOOL("Zpsfoperand", RISCVCPU, cfg.ext_psfoperand, true),
     DEFINE_PROP_BOOL("mmu", RISCVCPU, cfg.mmu, true),
     DEFINE_PROP_BOOL("pmp", RISCVCPU, cfg.pmp, true),
     DEFINE_PROP_BOOL("x-epmp", RISCVCPU, cfg.epmp, false),