RISC-V Spike Machines

RISC-V machines compatble with Spike aka riscv-isa-sim, the RISC-V
Instruction Set Simulator. The following machines are implemented:

- 'spike_v1.9.1'; HTIF console, config-string, Privileged ISA Version 1.9.1
- 'spike_v1.10'; HTIF console, device-tree, Privileged ISA Version 1.10

Acked-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Sagar Karandikar <sagark@eecs.berkeley.edu>
Signed-off-by: Michael Clark <mjc@sifive.com>

1 files changed, 53 insertions, 0 deletions

diff --git a/include/hw/riscv/spike.h b/include/hw/riscv/spike.h
new file mode 100644
index 0000000000..cb55a14d30
--- /dev/null
+++ b/include/hw/riscv/spike.h
@@ -0,0 +1,53 @@
+/*
+ * Spike machine interface
+ *
+ * Copyright (c) 2017 SiFive, Inc.
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms and conditions of the GNU General Public License,
+ * version 2 or later, as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
+ * more details.
+ *
+ * You should have received a copy of the GNU General Public License along with
+ * this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#ifndef HW_SPIKE_H
+#define HW_SPIKE_H
+
+#define TYPE_RISCV_SPIKE_V1_09_1_BOARD "riscv.spike_v1_9_1"
+#define TYPE_RISCV_SPIKE_V1_10_0_BOARD "riscv.spike_v1_10"
+
+#define SPIKE(obj) \
+    OBJECT_CHECK(SpikeState, (obj), TYPE_RISCV_SPIKE_BOARD)
+
+typedef struct {
+    /*< private >*/
+    SysBusDevice parent_obj;
+
+    /*< public >*/
+    RISCVHartArrayState soc;
+    void *fdt;
+    int fdt_size;
+} SpikeState;
+
+
+enum {
+    SPIKE_MROM,
+    SPIKE_CLINT,
+    SPIKE_DRAM
+};
+
+#if defined(TARGET_RISCV32)
+#define SPIKE_V1_09_1_CPU TYPE_RISCV_CPU_RV32GCSU_V1_09_1
+#define SPIKE_V1_10_0_CPU TYPE_RISCV_CPU_RV32GCSU_V1_10_0
+#elif defined(TARGET_RISCV64)
+#define SPIKE_V1_09_1_CPU TYPE_RISCV_CPU_RV64GCSU_V1_09_1
+#define SPIKE_V1_10_0_CPU TYPE_RISCV_CPU_RV64GCSU_V1_10_0
+#endif
+
+#endif