Changeset 7d3d641 in mainline for kernel/arch/xen32/include

Timestamp:

2006-08-01T20:45:26Z (19 years ago)

Author:

Martin Decky <martin@…>

Branches:

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

Children:

5b23a82

Parents:

3e5cc686

Message:

xen32: initialize virtual IDT

Location:

kernel/arch/xen32/include

Files:

• asm.h (modified) (1 diff)
• boot/boot.h (modified) (1 diff)
• hypercall.h (modified) (2 diffs)
• pm.h (modified) (2 diffs)

kernel/arch/xen32/include/asm.h

@@ -273 +273 @@
 }
 
-/** Load IDTR register from memory.
- *
- * @param idtr_reg Address of memory from where to load IDTR.
- */
-static inline void idtr_load(ptr_16_32_t *idtr_reg)
-{
-        __asm__ volatile ("lidtl %0\n" : : "m" (*idtr_reg));
-}
-
 /** Load TR from descriptor table.
  *

kernel/arch/xen32/include/boot/boot.h

@@ -41 +41 @@
 
 #define BOOT_OFFSET             0x0000
+#define TEMP_STACK_SIZE 0x1000
+
 #define XEN_VIRT_START  0xFC000000
-
-#define TEMP_STACK_SIZE 0x1000
+#define XEN_CS                  0xe019
 
 #ifndef __ASM__

kernel/arch/xen32/include/hypercall.h

@@ -37 +37 @@
 
 
+typedef struct {
+        uint8_t vector;     /**< Exception vector */
+        uint8_t flags;      /**< 0-3: privilege level; 4: clear event enable */
+        uint16_t cs;        /**< Code selector */
+        uintptr_t address;  /**< Code offset */
+} trap_info_t;
+
+
+#define XEN_SET_TRAP_TABLE              0
 #define XEN_MMU_UPDATE                  1
+#define XEN_SET_CALLBACKS               4
 #define XEN_UPDATE_VA_MAPPING   14
 #define XEN_CONSOLE_IO                  18
@@ -199 +209 @@
 }
 
+static inline int xen_set_callbacks(const unsigned int event_selector, const void *event_address, const unsigned int failsafe_selector, void *failsafe_address)
+{
+        return hypercall4(XEN_SET_CALLBACKS, event_selector, event_address, failsafe_selector, failsafe_address);
+}
+
+static inline int xen_set_trap_table(const trap_info_t *table)
+{
+        return hypercall1(XEN_SET_TRAP_TABLE, table);
+}
+
 #endif

kernel/arch/xen32/include/pm.h

@@ -93 +93 @@
 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;
@@ -157 +148 @@
 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 traps_init(void);
 
 extern void tss_initialize(tss_t *t);