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[Qemu-devel] [PATCH v1 4/6] target/riscv: Add a base 32 and 64 bit CPU


From: Alistair Francis
Subject: [Qemu-devel] [PATCH v1 4/6] target/riscv: Add a base 32 and 64 bit CPU
Date: Sat, 20 Apr 2019 02:24:09 +0000

At the same time deprecate the ISA string CPUs.

It is dobtful anyone specifies the CPUs, but we are keeping them for the
Spike machine (which is about to be depreated) so we may as well just
mark them as deprecated.

Signed-off-by: Alistair Francis <address@hidden>
---
 include/hw/riscv/virt.h |  4 ++--
 qemu-deprecated.texi    |  9 +++++++++
 target/riscv/cpu.c      | 14 ++++++++++++++
 target/riscv/cpu.h      |  2 ++
 4 files changed, 27 insertions(+), 2 deletions(-)

diff --git a/include/hw/riscv/virt.h b/include/hw/riscv/virt.h
index 568764b570..d01a1a85c4 100644
--- a/include/hw/riscv/virt.h
+++ b/include/hw/riscv/virt.h
@@ -74,9 +74,9 @@ enum {
                                FDT_PLIC_ADDR_CELLS + FDT_PLIC_INT_CELLS)
 
 #if defined(TARGET_RISCV32)
-#define VIRT_CPU TYPE_RISCV_CPU_RV32GCSU_V1_10_0
+#define VIRT_CPU TYPE_RISCV_CPU_BASE32
 #elif defined(TARGET_RISCV64)
-#define VIRT_CPU TYPE_RISCV_CPU_RV64GCSU_V1_10_0
+#define VIRT_CPU TYPE_RISCV_CPU_BASE64
 #endif
 
 #endif
diff --git a/qemu-deprecated.texi b/qemu-deprecated.texi
index 842e71b11d..92ce909e50 100644
--- a/qemu-deprecated.texi
+++ b/qemu-deprecated.texi
@@ -128,6 +128,15 @@ The ``acl_show'', ``acl_reset'', ``acl_policy'', 
``acl_add'', and
 ``acl_remove'' commands are deprecated with no replacement. Authorization
 for VNC should be performed using the pluggable QAuthZ objects.
 
address@hidden System emulator CPUS
+
address@hidden RISC-V ISA CPUs (since 4.1)
+
+The RISC-V cpus with the ISA version in the CPU name have been depcreated. The
+four CPUs are: ``rv32gcsu-v1.9.1``, ``rv32gcsu-v1.10.0``, ``rv64gcsu-v1.9.1`` 
and
+``rv64gcsu-v1.10.0``. Instead the version can be specified via the CPU 
``priv_spec``
+option when using the ``rv32`` or ``rv64`` CPUs.
+
 @section System emulator devices
 
 @subsection bluetooth (since 3.1)
diff --git a/target/riscv/cpu.c b/target/riscv/cpu.c
index 8f14fb8a1f..a3431d66a3 100644
--- a/target/riscv/cpu.c
+++ b/target/riscv/cpu.c
@@ -114,6 +114,12 @@ static void riscv_any_cpu_init(Object *obj)
 
 #if defined(TARGET_RISCV32)
 
+static void riscv_base32_cpu_init(Object *obj)
+{
+    CPURISCVState *env = &RISCV_CPU(obj)->env;
+    set_misa(env, RV32 | RVI | RVM | RVA | RVF | RVD | RVC | RVS | RVU);
+}
+
 static void rv32gcsu_priv1_09_1_cpu_init(Object *obj)
 {
     CPURISCVState *env = &RISCV_CPU(obj)->env;
@@ -145,6 +151,12 @@ static void rv32imacu_nommu_cpu_init(Object *obj)
 
 #elif defined(TARGET_RISCV64)
 
+static void riscv_base64_cpu_init(Object *obj)
+{
+    CPURISCVState *env = &RISCV_CPU(obj)->env;
+    set_misa(env, RV64 | RVI | RVM | RVA | RVF | RVD | RVC | RVS | RVU);
+}
+
 static void rv64gcsu_priv1_09_1_cpu_init(Object *obj)
 {
     CPURISCVState *env = &RISCV_CPU(obj)->env;
@@ -490,12 +502,14 @@ static const TypeInfo riscv_cpu_type_infos[] = {
     },
     DEFINE_CPU(TYPE_RISCV_CPU_ANY,              riscv_any_cpu_init),
 #if defined(TARGET_RISCV32)
+    DEFINE_CPU(TYPE_RISCV_CPU_BASE32,           riscv_base32_cpu_init),
     DEFINE_CPU(TYPE_RISCV_CPU_RV32GCSU_V1_09_1, rv32gcsu_priv1_09_1_cpu_init),
     DEFINE_CPU(TYPE_RISCV_CPU_RV32GCSU_V1_10_0, rv32gcsu_priv1_10_0_cpu_init),
     DEFINE_CPU(TYPE_RISCV_CPU_RV32IMACU_NOMMU,  rv32imacu_nommu_cpu_init),
     DEFINE_CPU(TYPE_RISCV_CPU_SIFIVE_E31,       rv32imacu_nommu_cpu_init),
     DEFINE_CPU(TYPE_RISCV_CPU_SIFIVE_U34,       rv32gcsu_priv1_10_0_cpu_init)
 #elif defined(TARGET_RISCV64)
+    DEFINE_CPU(TYPE_RISCV_CPU_BASE64,           riscv_base64_cpu_init),
     DEFINE_CPU(TYPE_RISCV_CPU_RV64GCSU_V1_09_1, rv64gcsu_priv1_09_1_cpu_init),
     DEFINE_CPU(TYPE_RISCV_CPU_RV64GCSU_V1_10_0, rv64gcsu_priv1_10_0_cpu_init),
     DEFINE_CPU(TYPE_RISCV_CPU_RV64IMACU_NOMMU,  rv64imacu_nommu_cpu_init),
diff --git a/target/riscv/cpu.h b/target/riscv/cpu.h
index 6321983584..a2c1a9af0a 100644
--- a/target/riscv/cpu.h
+++ b/target/riscv/cpu.h
@@ -48,6 +48,8 @@
 #define CPU_RESOLVING_TYPE TYPE_RISCV_CPU
 
 #define TYPE_RISCV_CPU_ANY              RISCV_CPU_TYPE_NAME("any")
+#define TYPE_RISCV_CPU_BASE32           RISCV_CPU_TYPE_NAME("rv32")
+#define TYPE_RISCV_CPU_BASE64           RISCV_CPU_TYPE_NAME("rv64")
 #define TYPE_RISCV_CPU_RV32GCSU_V1_09_1 RISCV_CPU_TYPE_NAME("rv32gcsu-v1.9.1")
 #define TYPE_RISCV_CPU_RV32GCSU_V1_10_0 RISCV_CPU_TYPE_NAME("rv32gcsu-v1.10.0")
 #define TYPE_RISCV_CPU_RV32IMACU_NOMMU  RISCV_CPU_TYPE_NAME("rv32imacu-nommu")
-- 
2.21.0


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