Changeset aecf79f in mainline for kernel/arch/xen32/include/pm.h

Timestamp:

2006-07-24T16:07:15Z (19 years ago)

Author:

Martin Decky <martin@…>

Branches:

lfn, master, serial, ticket/834-toolchain-update, topic/msim-upgrade, topic/simplify-dev-export

Children:

c59dd1a2

Parents:

7b0599b

Message:

xen memory initialization

File:

• kernel/arch/xen32/include/pm.h (modified) (1 diff, 1 prop)

kernel/arch/xen32/include/pm.h

@@ -1 @@
-../../ia32/include/pm.h
+/*
+ * Copyright (C) 2001-2004 Jakub Jermar
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *
+ * - Redistributions of source code must retain the above copyright
+ *   notice, this list of conditions and the following disclaimer.
+ * - Redistributions in binary form must reproduce the above copyright
+ *   notice, this list of conditions and the following disclaimer in the
+ *   documentation and/or other materials provided with the distribution.
+ * - The name of the author may not be used to endorse or promote products
+ *   derived from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
+ * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
+ * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
+ * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
+ * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
+ * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
+ * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+/** @addtogroup xen32
+ * @{
+ */
+/** @file
+ */
+
+#ifndef __PM_H__
+#define __PM_H__
+
+#define IDT_ITEMS 64
+#define GDT_ITEMS 7
+
+#define NULL_DES        0
+#define KTEXT_DES       1
+#define KDATA_DES       2
+#define UTEXT_DES       3
+#define UDATA_DES       4
+#define TSS_DES         5
+#define TLS_DES         6 /* Pointer to Thread-Local-Storage data */
+
+#define selector(des)   ((des) << 3)
+
+#define PL_KERNEL       1
+#define PL_USER         3
+
+#define AR_PRESENT      (1<<7)
+#define AR_DATA         (2<<3)
+#define AR_CODE         (3<<3)
+#define AR_WRITABLE     (1<<1)
+#define AR_INTERRUPT    (0xe)
+#define AR_TSS          (0x9)
+
+#define DPL_KERNEL      (PL_KERNEL<<5)
+#define DPL_USER        (PL_USER<<5)
+
+#define TSS_BASIC_SIZE  104
+#define TSS_IOMAP_SIZE  (16*1024+1)     /* 16K for bitmap + 1 terminating byte for convenience */
+
+#define IO_PORTS        (64*1024)
+
+#ifndef __ASM__
+
+#include <arch/types.h>
+#include <typedefs.h>
+#include <arch/context.h>
+
+struct ptr_16_32 {
+        uint16_t limit;
+        uint32_t base;
+} __attribute__ ((packed));
+typedef struct ptr_16_32 ptr_16_32_t;
+
+struct descriptor {
+        unsigned limit_0_15: 16;
+        unsigned base_0_15: 16;
+        unsigned base_16_23: 8;
+        unsigned access: 8;
+        unsigned limit_16_19: 4;
+        unsigned available: 1;
+        unsigned unused: 1;
+        unsigned special: 1;
+        unsigned granularity : 1;
+        unsigned base_24_31: 8;
+} __attribute__ ((packed));
+typedef struct descriptor  descriptor_t;
+
+struct idescriptor {
+        unsigned offset_0_15: 16;
+        unsigned selector: 16;
+        unsigned unused: 8;
+        unsigned access: 8;
+        unsigned offset_16_31: 16;
+} __attribute__ ((packed));
+typedef struct idescriptor idescriptor_t;
+
+struct tss {
+        uint16_t link;
+        unsigned : 16;
+        uint32_t esp0;
+        uint16_t ss0;
+        unsigned : 16;
+        uint32_t esp1;
+        uint16_t ss1;
+        unsigned : 16;
+        uint32_t esp2;
+        uint16_t ss2;
+        unsigned : 16;
+        uint32_t cr3;
+        uint32_t eip;
+        uint32_t eflags;
+        uint32_t eax;
+        uint32_t ecx;
+        uint32_t edx;
+        uint32_t ebx;
+        uint32_t esp;
+        uint32_t ebp;
+        uint32_t esi;
+        uint32_t edi;
+        uint16_t es;
+        unsigned : 16;
+        uint16_t cs;
+        unsigned : 16;
+        uint16_t ss;
+        unsigned : 16;
+        uint16_t ds;
+        unsigned : 16;
+        uint16_t fs;
+        unsigned : 16;
+        uint16_t gs;
+        unsigned : 16;
+        uint16_t ldtr;
+        unsigned : 16;
+        unsigned : 16;
+        uint16_t iomap_base;
+        uint8_t iomap[TSS_IOMAP_SIZE];
+} __attribute__ ((packed));
+typedef struct tss tss_t;
+
+extern ptr_16_32_t gdtr;
+extern ptr_16_32_t bootstrap_gdtr;
+extern ptr_16_32_t protected_ap_gdtr;
+extern struct tss *tss_p;
+
+extern descriptor_t gdt[];
+
+extern void pm_init(void);
+
+extern void gdt_setbase(descriptor_t *d, uintptr_t base);
+extern void gdt_setlimit(descriptor_t *d, uint32_t limit);
+
+extern void idt_init(void);
+extern void idt_setoffset(idescriptor_t *d, uintptr_t offset);
+
+extern void tss_initialize(tss_t *t);
+extern void set_tls_desc(uintptr_t tls);
+
+#endif /* __ASM__ */
+
+#endif
+
+/** @}
+ */