diff mbox series

[v2,35/35] target/riscv: Allow enabling the Hypervisor extension

Message ID 507f36b2e9ce8bbd5f32c8139d1a5727723f5287.1580518859.git.alistair.francis@wdc.com
State New
Headers show
Series Add RISC-V Hypervisor Extension v0.5 | expand

Commit Message

Alistair Francis Feb. 1, 2020, 1:03 a.m. UTC 
Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
Reviewed-by: Palmer Dabbelt <palmer@sifive.com>
---
 target/riscv/cpu.c | 5 +++++
 target/riscv/cpu.h | 1 +
 2 files changed, 6 insertions(+)
diff mbox series

Patch

diff --git a/target/riscv/cpu.c b/target/riscv/cpu.c
index b27066f6a7..c47d10b739 100644
--- a/target/riscv/cpu.c
+++ b/target/riscv/cpu.c
@@ -453,6 +453,9 @@  static void riscv_cpu_realize(DeviceState *dev, Error **errp)
         if (cpu->cfg.ext_u) {
             target_misa |= RVU;
         }
+        if (cpu->cfg.ext_h) {
+            target_misa |= RVH;
+        }
 
         set_misa(env, RVXLEN | target_misa);
     }
@@ -488,6 +491,8 @@  static Property riscv_cpu_properties[] = {
     DEFINE_PROP_BOOL("c", RISCVCPU, cfg.ext_c, true),
     DEFINE_PROP_BOOL("s", RISCVCPU, cfg.ext_s, true),
     DEFINE_PROP_BOOL("u", RISCVCPU, cfg.ext_u, true),
+    /* This is experimental so mark with 'x-' */
+    DEFINE_PROP_BOOL("x-h", RISCVCPU, cfg.ext_h, 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),
diff --git a/target/riscv/cpu.h b/target/riscv/cpu.h
index 6f9c29322a..d52f209361 100644
--- a/target/riscv/cpu.h
+++ b/target/riscv/cpu.h
@@ -258,6 +258,7 @@  typedef struct RISCVCPU {
         bool ext_c;
         bool ext_s;
         bool ext_u;
+        bool ext_h;
         bool ext_counters;
         bool ext_ifencei;
         bool ext_icsr;