[Xen-devel] [RFC 2/5] xen: cpupool: introduce cpupool_arch_info

[van.freenix@xxxxxxxxx]

From: Peng Fan <peng.fan@xxxxxxx>

Intrdouce cpupool_arch_info.
To ARM, add a 'midr' entry to hold the MIDR info of the cpupool.

Signed-off-by: Peng Fan <peng.fan@xxxxxxx>
Cc: Stefano Stabellini <sstabellini@xxxxxxxxxx>
Cc: Julien Grall <julien.grall@xxxxxxx>
Cc: Jan Beulich <jbeulich@xxxxxxxx>
Cc: Andrew Cooper <andrew.cooper3@xxxxxxxxxx>
---
 xen/include/asm-arm/cpupool.h | 16 ++++++++++++++++
 xen/include/asm-x86/cpupool.h | 16 ++++++++++++++++
 xen/include/xen/sched-if.h    |  2 ++
 3 files changed, 34 insertions(+)
 create mode 100644 xen/include/asm-arm/cpupool.h
 create mode 100644 xen/include/asm-x86/cpupool.h

diff --git a/xen/include/asm-arm/cpupool.h b/xen/include/asm-arm/cpupool.h
new file mode 100644
index 0000000..f450199
--- /dev/null
+++ b/xen/include/asm-arm/cpupool.h
@@ -0,0 +1,16 @@
+/*
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * 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 General Public License for more details.
+ */
+
+struct cpupool_arch_info
+{
+    uint32_t midr; /* Hold the MIDR info of the pool */
+};
diff --git a/xen/include/asm-x86/cpupool.h b/xen/include/asm-x86/cpupool.h
new file mode 100644
index 0000000..3251709
--- /dev/null
+++ b/xen/include/asm-x86/cpupool.h
@@ -0,0 +1,16 @@
+/*
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * 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 General Public License for more details.
+ */
+
+struct cpupool_arch_info
+{
+    /* Nothing now.. */
+};
diff --git a/xen/include/xen/sched-if.h b/xen/include/xen/sched-if.h
index bc0e794..eb52ac7 100644
--- a/xen/include/xen/sched-if.h
+++ b/xen/include/xen/sched-if.h
@@ -8,6 +8,7 @@
 #ifndef __XEN_SCHED_IF_H__
 #define __XEN_SCHED_IF_H__
 
+#include <asm/cpupool.h>
 #include <xen/percpu.h>
 
 /* A global pointer to the initial cpupool (POOL0). */
@@ -186,6 +187,7 @@ struct cpupool
     unsigned int     n_dom;
     struct scheduler *sched;
     atomic_t         refcnt;
+    struct cpupool_arch_info info;
 };
 
 #define cpupool_online_cpumask(_pool) \
-- 
2.6.6


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