From: Kimball Murray <kmurray@redhat.com>
Date: Thu, 12 Jul 2007 10:45:44 -0400
Subject: [xen] inteface with stratus platform op
Message-id: 20070712144158.18201.69748.sendpatchset@dhcp83-86.boston.redhat.com
O-Subject: [RHEL5.1 Patch 3/3 ] (BZ-247841)
Bugzilla: 247841

This is the kernel side of the Stratus platform op provided in
the patch for the hypervisor (BZ-247833).  This simply duplicates the structure definitions used by the Hypervisor platform op.

While adding the structure to the union below doesn't change the size
of the union (because of the pad[128]), I'm told that KABI could
change because of the checksum. It was suggested that ifndef GENKSYSMS
might do the trick.

Please review this in conjunction with BZ-247833 to see how both sides
of the platform call fit together.

--------------------- snip ---------------------

Acked-by: "Stephen C. Tweedie" <sct@redhat.com>
Acked-by: Rik van Riel <riel@redhat.com>

diff --git a/include/xen/interface/dom0_ops.h b/include/xen/interface/dom0_ops.h
index b03a7ce..4edf430 100644
--- a/include/xen/interface/dom0_ops.h
+++ b/include/xen/interface/dom0_ops.h
@@ -83,6 +83,9 @@ struct dom0_op {
         struct dom0_microcode         microcode;
         struct dom0_platform_quirk    platform_quirk;
         struct dom0_memory_map_entry  physical_memory_map;
+#ifdef CONFIG_X86_64
+	struct xenpf_stratus_call     stratus_call;
+#endif
         uint8_t                       pad[128];
     } u;
 };
diff --git a/include/xen/interface/platform.h b/include/xen/interface/platform.h
index 46e9160..79f82da 100644
--- a/include/xen/interface/platform.h
+++ b/include/xen/interface/platform.h
@@ -10,6 +10,9 @@
 #define __XEN_PUBLIC_PLATFORM_H__
 
 #include "xen.h"
+#ifdef CONFIG_X86_64
+#include "stratus.h"
+#endif
 
 #define XENPF_INTERFACE_VERSION 0x03000001
 
@@ -112,6 +115,12 @@ struct xen_platform_op {
 typedef struct xen_platform_op xen_platform_op_t;
 DEFINE_XEN_GUEST_HANDLE(xen_platform_op_t);
 
+#ifdef CONFIG_X86_64
+#define XENPF_stratus_call	0xffffffff
+typedef struct xenpf_stratus_call xenpf_stratus_call_t;
+DEFINE_XEN_GUEST_HANDLE(xenpf_stratus_call_t);
+#endif
+
 #endif /* __XEN_PUBLIC_PLATFORM_H__ */
 
 /*
diff --git a/include/xen/interface/stratus.h b/include/xen/interface/stratus.h
new file mode 100644
index 0000000..a224444
--- /dev/null
+++ b/include/xen/interface/stratus.h
@@ -0,0 +1,76 @@
+#ifndef _CC_INTERFACE_H
+#define _CC_INTERFACE_H
+
+// Clear the entire Host BIOS vector
+#define CC_HBV_MEMSET 			1	
+// Read/Write from page 0 (HBV or DUMP)
+#define CC_RW_REGION			2
+// Trigger SMI through local apic
+#define CC_TRIGGER_SMI			3
+// Return local cpu apic id
+#define CC_LAPIC_ID			4
+// Get/Set CR4.
+#define CC_CR4				5
+// Get cpuid
+#define CC_CPUID			6
+// Read/Write MSRs
+#define CC_RW_MSR			7
+// Are we on a Stratus box?
+#define CC_VALIDATE_PLATFORM		8
+
+// Page 0 regions to read/write (host bios vector or dump vector signature).
+#define	RW_HBV		1
+#define	RW_DUMPVEC	2
+
+struct cr4_struct {
+	int rw;		// 0 = read, 1 = write.
+	unsigned long cr4;
+};
+
+struct cpuid_struct {
+	unsigned int op;
+	unsigned int eax, ebx, ecx, edx;	
+};
+
+struct msr_struct {
+	int rw;
+	unsigned int msr;
+	unsigned long val;
+};
+
+struct lapic_struct {
+	int id;
+};
+
+struct rw_struct {
+	int rw;			// 0 = read, 1 = write
+	int region;		// RW_HBV or RW_CONTIG
+	void *data;
+	unsigned long where;	// offset in region
+	int size;
+};
+
+struct smi_struct {
+	unsigned int dest;
+};
+
+struct hbv_memset_struct {
+	int val;
+	int size;
+};
+
+struct xenpf_stratus_call {
+	int cmd;
+	int ret;
+	union {
+		struct smi_struct smi;
+		struct hbv_memset_struct hbv_m;
+		struct rw_struct rw;
+		struct lapic_struct ls;
+		struct cr4_struct cr4;
+		struct cpuid_struct cpuid;
+		struct msr_struct msr;
+	} u;
+};
+
+#endif