[PATCH v2 04/17] libxl/arm: prepare for constructing ACPI tables

[Shannon Zhao <zhaoshenglong@huawei.com>]

From: Shannon Zhao <shannon.zhao@linaro.org>

It only constructs the ACPI tables for 64-bit ARM DomU when user enables
acpi because 32-bit DomU doesn't support ACPI.

Signed-off-by: Shannon Zhao <shannon.zhao@linaro.org>
---
 tools/libxl/Makefile         |  4 +++
 tools/libxl/libxl_arm.c      | 19 +++++++++-
 tools/libxl/libxl_arm_acpi.c | 85 ++++++++++++++++++++++++++++++++++++++++++++
 tools/libxl/libxl_arm_acpi.h | 32 +++++++++++++++++
 4 files changed, 139 insertions(+), 1 deletion(-)
 create mode 100644 tools/libxl/libxl_arm_acpi.c
 create mode 100644 tools/libxl/libxl_arm_acpi.h

diff --git a/tools/libxl/Makefile b/tools/libxl/Makefile
index 9fee752..264b6ef 100644
--- a/tools/libxl/Makefile
+++ b/tools/libxl/Makefile
@@ -77,6 +77,10 @@ endif
 
 LIBXL_OBJS-$(CONFIG_X86) += libxl_cpuid.o libxl_x86.o libxl_psr.o
 LIBXL_OBJS-$(CONFIG_ARM) += libxl_nocpuid.o libxl_arm.o libxl_libfdt_compat.o
+LIBXL_OBJS-$(CONFIG_ARM) += libxl_arm_acpi.o
+
+libxl_arm_acpi.o: libxl_arm_acpi.c
+	$(CC) -c $(CFLAGS) -I../../xen/include/ -o $@ libxl_arm_acpi.c
 
 ifeq ($(CONFIG_NetBSD),y)
 LIBXL_OBJS-y += libxl_netbsd.o
diff --git a/tools/libxl/libxl_arm.c b/tools/libxl/libxl_arm.c
index cc5a717..f5db74b 100644
--- a/tools/libxl/libxl_arm.c
+++ b/tools/libxl/libxl_arm.c
@@ -1,6 +1,7 @@
 #include "libxl_internal.h"
 #include "libxl_arch.h"
 #include "libxl_libfdt_compat.h"
+#include "libxl_arm_acpi.h"
 
 #include <xc_dom.h>
 #include <stdbool.h>
@@ -888,8 +889,24 @@ int libxl__arch_domain_init_hw_description(libxl__gc *gc,
                                            libxl__domain_build_state *state,
                                            struct xc_dom_image *dom)
 {
+    int rc;
+
     assert(info->type == LIBXL_DOMAIN_TYPE_PV);
-    return libxl__prepare_dtb(gc, info, state, dom);
+    rc = libxl__prepare_dtb(gc, info, state, dom);
+    if (rc)
+        return rc;
+
+    if (!state->config.acpi) {
+        LOG(DEBUG, "Generating ACPI tables is disabled by user.");
+        return 0;
+    }
+
+    if (strcmp(dom->guest_type, "xen-3.0-aarch64")) {
+        LOG(DEBUG, "Do not generate ACPI tables for %s", dom->guest_type);
+        state->config.acpi = false;
+    }
+
+    return libxl__prepare_acpi(gc, info, state, dom);
 }
 
 static void finalise_one_memory_node(libxl__gc *gc, void *fdt,
diff --git a/tools/libxl/libxl_arm_acpi.c b/tools/libxl/libxl_arm_acpi.c
new file mode 100644
index 0000000..60c31f9
--- /dev/null
+++ b/tools/libxl/libxl_arm_acpi.c
@@ -0,0 +1,85 @@
+/*
+ * ARM DmoU ACPI generation
+ *
+ * Copyright (C) 2008-2010  Kevin O'Connor <kevin@koconnor.net>
+ * Copyright (C) 2006 Fabrice Bellard
+ * Copyright (C) 2013 Red Hat Inc
+ *
+ * Author: Michael S. Tsirkin <mst@redhat.com>
+ *
+ * Copyright (c) 2015 HUAWEI TECHNOLOGIES CO.,LTD.
+ *
+ * Author: Shannon Zhao <zhaoshenglong@huawei.com>
+ *
+ * Copyright (C) 2016      Linaro Ltd.
+ *
+ * Author: Shannon Zhao <shannon.zhao@linaro.org>
+ *
+ * This program 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; version 2.1 only. with the special
+ * exception on linking described in file LICENSE.
+ *
+ * This program 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.
+ */
+
+#include "libxl_arm_acpi.h"
+
+#include <stdint.h>
+typedef uint8_t u8;
+typedef uint16_t u16;
+typedef uint32_t u32;
+typedef uint64_t u64;
+#include <acpi/acconfig.h>
+#include <acpi/actbl.h>
+
+enum {
+    RSDP,
+    XSDT,
+    GTDT,
+    MADT,
+    FADT,
+    DSDT,
+    NUMS,
+};
+
+struct acpitable {
+    void *table;
+    size_t size;
+};
+
+static struct acpitable acpitables[NUMS];
+
+int libxl__prepare_acpi(libxl__gc *gc, libxl_domain_build_info *info,
+                        libxl__domain_build_state *state,
+                        struct xc_dom_image *dom)
+{
+    const libxl_version_info *vers;
+    int rc;
+
+    /* convenience aliases */
+    xc_domain_configuration_t *xc_config = &state->config;
+
+    vers = libxl_get_version_info(CTX);
+    if (vers == NULL)
+        return ERROR_FAIL;
+
+    LOG(DEBUG, "constructing ACPI tables for Xen version %d.%d guest",
+        vers->xen_version_major, vers->xen_version_minor);
+
+    dom->acpitable_blob = NULL;
+    dom->acpitable_size = 0;
+
+    return 0;
+}
+
+/*
+ * Local variables:
+ * mode: C
+ * c-basic-offset: 4
+ * indent-tabs-mode: nil
+ * End:
+ */
diff --git a/tools/libxl/libxl_arm_acpi.h b/tools/libxl/libxl_arm_acpi.h
new file mode 100644
index 0000000..5899210
--- /dev/null
+++ b/tools/libxl/libxl_arm_acpi.h
@@ -0,0 +1,32 @@
+/*
+ * Copyright (C) 2016      Linaro Ltd.
+ *
+ * Author: Shannon Zhao <shannon.zhao@linaro.org>
+ *
+ * This program 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; version 2.1 only. with the special
+ * exception on linking described in file LICENSE.
+ *
+ * This program 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.
+ */
+
+#include "libxl_internal.h"
+#include "libxl_arch.h"
+
+#include <xc_dom.h>
+
+int libxl__prepare_acpi(libxl__gc *gc, libxl_domain_build_info *info,
+                        libxl__domain_build_state *state,
+                        struct xc_dom_image *dom);
+
+/*
+ * Local variables:
+ * mode: C
+ * c-basic-offset: 4
+ * indent-tabs-mode: nil
+ * End:
+ */
-- 
2.0.4



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