[libvirt] [PATCH 2/6] AArch64: CPU Support for AArch64 (ARMv8 64bit).

[Pranavkumar Sawargaonkar]

Adding CPU encoder/decoder for AArch64.

Signed-off-by: Anup Patel <anup.patel at linaro.org>
Signed-off-by: Pranavkumar Sawargaonkar <pranavkumar at linaro.org>
---
 src/Makefile.am       |    1 +
 src/cpu/cpu.c         |    2 ++
 src/cpu/cpu_aarch64.c |   79 +++++++++++++++++++++++++++++++++++++++++++++++++
 src/cpu/cpu_aarch64.h |   31 +++++++++++++++++++
 4 files changed, 113 insertions(+)
 create mode 100644 src/cpu/cpu_aarch64.c
 create mode 100644 src/cpu/cpu_aarch64.h

diff --git a/src/Makefile.am b/src/Makefile.am
index 201c268..d5e62d8 100644
--- a/src/Makefile.am
+++ b/src/Makefile.am
@@ -900,6 +900,7 @@ CPU_SOURCES =							\
 		cpu/cpu_x86.h cpu/cpu_x86.c cpu/cpu_x86_data.h	\
 		cpu/cpu_s390.h cpu/cpu_s390.c			\
 		cpu/cpu_arm.h cpu/cpu_arm.c			\
+		cpu/cpu_aarch64.h cpu/cpu_aarch64.c		\
 		cpu/cpu_map.h cpu/cpu_map.c cpu/cpu_powerpc.h	\
 		cpu/cpu_powerpc.c cpu/cpu_ppc_data.h
 
diff --git a/src/cpu/cpu.c b/src/cpu/cpu.c
index 31de857..e611452 100644
--- a/src/cpu/cpu.c
+++ b/src/cpu/cpu.c
@@ -32,6 +32,7 @@
 #include "cpu_powerpc.h"
 #include "cpu_s390.h"
 #include "cpu_arm.h"
+#include "cpu_aarch64.h"
 #include "cpu_generic.h"
 #include "util/virstring.h"
 
@@ -44,6 +45,7 @@ static struct cpuArchDriver *drivers[] = {
     &cpuDriverPowerPC,
     &cpuDriverS390,
     &cpuDriverArm,
+    &cpuDriverAARCH64,
     /* generic driver must always be the last one */
     &cpuDriverGeneric
 };
diff --git a/src/cpu/cpu_aarch64.c b/src/cpu/cpu_aarch64.c
new file mode 100644
index 0000000..8c78eca
--- /dev/null
+++ b/src/cpu/cpu_aarch64.c
@@ -0,0 +1,79 @@
+/*
+ * cpu_aarch64.c: CPU driver for AArch64 CPUs
+ *
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this library.  If not, see
+ * <http://www.gnu.org/licenses/>.
+ *
+ * Authors:
+ *      Anup Patel <anup.patel at linaro.org>
+ *      Pranavkumar Sawargaonkar <pranavkumar at linaro.org>
+ */
+
+#include <config.h>
+
+#include "viralloc.h"
+#include "cpu.h"
+
+#define VIR_FROM_THIS VIR_FROM_CPU
+
+static const virArch archs[] = { VIR_ARCH_AARCH64 };
+
+static virCPUDataPtr
+AArch64NodeData(virArch arch)
+{
+    virCPUDataPtr data;
+
+    if (VIR_ALLOC(data) < 0)
+        return NULL;
+
+    data->arch = arch;
+
+    return data;
+}
+
+static int
+AArch64Decode(virCPUDefPtr cpu ATTRIBUTE_UNUSED,
+          const virCPUDataPtr data ATTRIBUTE_UNUSED,
+          const char **models ATTRIBUTE_UNUSED,
+          unsigned int nmodels ATTRIBUTE_UNUSED,
+          const char *preferred ATTRIBUTE_UNUSED,
+          unsigned int flags)
+{
+
+    virCheckFlags(VIR_CONNECT_BASELINE_CPU_EXPAND_FEATURES, -1);
+
+    return 0;
+}
+
+static void
+AArch64DataFree(virCPUDataPtr data)
+{
+    VIR_FREE(data);
+}
+
+struct cpuArchDriver cpuDriverAARCH64 = {
+    .name = "aarch64",
+    .arch = archs,
+    .narch = ARRAY_CARDINALITY(archs),
+    .compare = NULL,
+    .decode = AArch64Decode,
+    .encode = NULL,
+    .free = AArch64DataFree,
+    .nodeData = AArch64NodeData,
+    .guestData = NULL,
+    .baseline = NULL,
+    .update = NULL,
+    .hasFeature = NULL,
+};
diff --git a/src/cpu/cpu_aarch64.h b/src/cpu/cpu_aarch64.h
new file mode 100644
index 0000000..8e48368
--- /dev/null
+++ b/src/cpu/cpu_aarch64.h
@@ -0,0 +1,31 @@
+/*
+ * cpu_aarch64.h: CPU driver for AArch64 CPUs
+ *
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this library.  If not, see
+ * <http://www.gnu.org/licenses/>.
+ *
+ * Authors:
+ *      Anup Patel <anup.patel at linaro.org>
+ *      Pravakumar Sawargaonkar <pranavkumar at linaro.org>
+ */
+
+#ifndef __VIR_CPU_AARCH64_H__
+# define __VIR_CPU_AARCH64_H__
+
+# include "cpu.h"
+
+extern struct cpuArchDriver cpuDriverAARCH64;
+
+#endif /* __VIR_CPU_AARCH64_H__ */
-- 
1.7.9.5