This commit was manufactured by cvs2svn to create branch 'vserver'.

[linux-2.6.git] / include / xen / interface / arch-powerpc.h

diff --git a/include/xen/interface/arch-powerpc.h b/include/xen/interface/arch-powerpc.h
new file mode 100644 (file)
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+++ b/include/xen/interface/arch-powerpc.h
@@ -0,0 +1,120 @@
+/*
+ * 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.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
+ *
+ * Copyright (C) IBM Corp. 2005, 2006
+ *
+ * Authors: Hollis Blanchard <hollisb@us.ibm.com>
+ */
+
+#ifndef __XEN_PUBLIC_ARCH_PPC_64_H__
+#define __XEN_PUBLIC_ARCH_PPC_64_H__
+
+#if !(defined(__XEN__) || defined(__XEN_TOOLS__))
+/* not sure how this is supposed to get asserted */
+#define __XEN_INTERFACE_VERSION__ 0x00030202
+#endif
+
+#define __DEFINE_XEN_GUEST_HANDLE(name, type) \
+    typedef struct { \
+        int __pad[(sizeof (long long) - sizeof (void *)) / sizeof (int)]; \
+        type *p; \
+    } __attribute__((__aligned__(8))) __guest_handle_ ## name
+
+#define DEFINE_XEN_GUEST_HANDLE(name) __DEFINE_XEN_GUEST_HANDLE(name, name)
+#define XEN_GUEST_HANDLE(name)        __guest_handle_ ## name
+#define set_xen_guest_handle(hnd, val) \
+    do { \
+        if (sizeof ((hnd).__pad)) \
+            (hnd).__pad[0] = 0; \
+        (hnd).p = val; \
+    } while (0)
+
+#ifdef __XEN_TOOLS__
+#define get_xen_guest_handle(val, hnd)  do { val = (hnd).p; } while (0)
+#endif
+
+#ifndef __ASSEMBLY__
+/* Guest handles for primitive C types. */
+__DEFINE_XEN_GUEST_HANDLE(uchar, unsigned char);
+__DEFINE_XEN_GUEST_HANDLE(uint,  unsigned int);
+__DEFINE_XEN_GUEST_HANDLE(ulong, unsigned long);
+DEFINE_XEN_GUEST_HANDLE(char);
+DEFINE_XEN_GUEST_HANDLE(int);
+DEFINE_XEN_GUEST_HANDLE(long);
+DEFINE_XEN_GUEST_HANDLE(void);
+
+typedef unsigned long long xen_pfn_t;
+DEFINE_XEN_GUEST_HANDLE(xen_pfn_t);
+#endif
+
+/*
+ * Pointers and other address fields inside interface structures are padded to
+ * 64 bits. This means that field alignments aren't different between 32- and
+ * 64-bit architectures. 
+ */
+/* NB. Multi-level macro ensures __LINE__ is expanded before concatenation. */
+#define __MEMORY_PADDING(_X)
+#define _MEMORY_PADDING(_X)  __MEMORY_PADDING(_X)
+#define MEMORY_PADDING       _MEMORY_PADDING(__LINE__)
+
+/* And the trap vector is... */
+#define TRAP_INSTR "li 0,-1; sc" /* XXX just "sc"? */
+
+#ifndef __ASSEMBLY__
+
+typedef uint64_t xen_ulong_t;
+
+/* User-accessible registers: need to be saved/restored for every nested Xen
+ * invocation. */
+struct cpu_user_regs
+{
+    uint64_t gprs[32];
+    uint64_t lr;
+    uint64_t ctr;
+    uint64_t srr0;
+    uint64_t srr1;
+    uint64_t pc;
+    uint64_t msr;
+    uint64_t fpscr;
+    uint64_t xer;
+    uint64_t hid4;
+    uint32_t cr;
+    uint32_t entry_vector;
+};
+typedef struct cpu_user_regs cpu_user_regs_t;
+
+typedef uint64_t tsc_timestamp_t; /* RDTSC timestamp */ /* XXX timebase */
+
+/* ONLY used to communicate with dom0! See also struct exec_domain. */
+struct vcpu_guest_context {
+    cpu_user_regs_t user_regs;         /* User-level CPU registers     */
+    uint64_t sdr1;                     /* Pagetable base               */
+    /* XXX etc */
+};
+typedef struct vcpu_guest_context vcpu_guest_context_t;
+DEFINE_XEN_GUEST_HANDLE(vcpu_guest_context_t);
+
+struct arch_shared_info {
+    uint64_t pad[32];
+};
+
+struct arch_vcpu_info {
+};
+
+/* Support for multi-processor guests. */
+#define MAX_VIRT_CPUS 32
+#endif
+
+#endif