[Xen-devel] [RFC PATCH v4 09/11] xen: arm: add cpufreq shared info definition

[Oleksandr Dmytryshyn <oleksandr.dmytryshyn@xxxxxxxxxxxxxxx>]

This shared info will be used by hwdom-cpufreq driver
to send commands to the cpufreq driver in the hwdom.

Signed-off-by: Oleksandr Dmytryshyn <oleksandr.dmytryshyn@xxxxxxxxxxxxxxx>
---
 xen/include/asm-arm/shared.h  | 14 ++++++++++++++
 xen/include/public/arch-arm.h |  8 ++++++++
 2 files changed, 22 insertions(+)
 create mode 100644 xen/include/asm-arm/shared.h

diff --git a/xen/include/asm-arm/shared.h b/xen/include/asm-arm/shared.h
new file mode 100644
index 0000000..4906f38
--- /dev/null
+++ b/xen/include/asm-arm/shared.h
@@ -0,0 +1,14 @@
+#ifndef __XEN_ARM_SHARED_H__
+#define __XEN_ARM_SHARED_H__
+
+#define GET_SET_SHARED(type, field)                                 \
+static inline type *arch_get_##field##_addr(const struct domain *d) \
+{                                                                   \
+   return &d->shared_info->arch.field;                              \
+}
+
+GET_SET_SHARED(struct cpufreq_sh_info, cpufreq)
+
+#undef GET_SET_SHARED
+
+#endif /* __XEN_ARM_SHARED_H__ */
diff --git a/xen/include/public/arch-arm.h b/xen/include/public/arch-arm.h
index 7496556..7eef6f7 100644
--- a/xen/include/public/arch-arm.h
+++ b/xen/include/public/arch-arm.h
@@ -309,7 +309,15 @@ struct arch_vcpu_info {
 };
 typedef struct arch_vcpu_info arch_vcpu_info_t;
 
+struct cpufreq_sh_info {
+    uint32_t cpu;       /* Physical CPU number */
+    uint32_t freq;      /* Frequency in KHz */
+    uint32_t relation;  /* CPUFREQ_RELATION_L/H (0) or (1) */
+    int32_t result;        /* Returned result of the operation */
+};
+
 struct arch_shared_info {
+    struct cpufreq_sh_info cpufreq;
 };
 typedef struct arch_shared_info arch_shared_info_t;
 typedef uint64_t xen_callback_t;
-- 
1.9.1


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