[PATCH 11/36] xen/include: define hypercall parameter for coloring

[Marco Solieri <marco.solieri@xxxxxxxxxxxxxxx>]

From: Luca Miccio <lucmiccio@xxxxxxxxx>

During domU creation process the colors selection has to be passed to
the Xen hypercall.
This is generally done using what Xen calls GUEST_HANDLE_PARAMS. In this
case a simple bitmask for the coloring configuration suffices.
Currently the maximum amount of supported colors is 128.
Add a new parameter that allows us to pass both the colors bitmask
and the number of elements in it.

Signed-off-by: Luca Miccio <lucmiccio@xxxxxxxxx>
Signed-off-by: Marco Solieri <marco.solieri@xxxxxxxxxxxxxxx>
Signed-off-by: Stefano Stabellini <stefano.stabellini@xxxxxxxxxx>
---
 xen/arch/arm/include/asm/coloring.h | 2 --
 xen/include/public/arch-arm.h       | 8 ++++++++
 2 files changed, 8 insertions(+), 2 deletions(-)

diff --git a/xen/arch/arm/include/asm/coloring.h 
b/xen/arch/arm/include/asm/coloring.h
index fdd46448d7..1f7e0dde79 100644
--- a/xen/arch/arm/include/asm/coloring.h
+++ b/xen/arch/arm/include/asm/coloring.h
@@ -23,8 +23,6 @@
 #ifndef __ASM_ARM_COLORING_H__
 #define __ASM_ARM_COLORING_H__
 
-#define MAX_COLORS_CELLS 4
-
 #ifdef CONFIG_COLORING
 #include <xen/sched.h>
 
diff --git a/xen/include/public/arch-arm.h b/xen/include/public/arch-arm.h
index 94b31511dd..627cc42164 100644
--- a/xen/include/public/arch-arm.h
+++ b/xen/include/public/arch-arm.h
@@ -303,6 +303,12 @@ struct vcpu_guest_context {
 typedef struct vcpu_guest_context vcpu_guest_context_t;
 DEFINE_XEN_GUEST_HANDLE(vcpu_guest_context_t);
 
+#define MAX_COLORS_CELLS 4
+struct color_guest_config {
+    uint32_t max_colors;
+    uint32_t colors[MAX_COLORS_CELLS];
+};
+
 /*
  * struct xen_arch_domainconfig's ABI is covered by
  * XEN_DOMCTL_INTERFACE_VERSION.
@@ -335,6 +341,8 @@ struct xen_arch_domainconfig {
      *
      */
     uint32_t clock_frequency;
+    /* IN */
+    struct color_guest_config colors;
 };
 #endif /* __XEN__ || __XEN_TOOLS__ */
 
-- 
2.30.2