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Move i386 part of core.c to x86/core.c.

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Separate i386 architecture specific from core.c and move it to
x86/core.c and add x86/lguest.h header file to match.

Signed-off-by: Jes Sorensen <jes@sgi.com>
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
This commit is contained in:
Jes Sorensen
2007-10-22 11:03:28 +10:00
committed by Rusty Russell
parent 56adbe9ddc
commit 625efab1cd
9 changed files with 613 additions and 522 deletions
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63
drivers/lguest/lg.h
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@@ -1,13 +1,6 @@
#ifndef _LGUEST_H
#define _LGUEST_H
#include <asm/desc.h>
#define GDT_ENTRY_LGUEST_CS 10
#define GDT_ENTRY_LGUEST_DS 11
#define LGUEST_CS (GDT_ENTRY_LGUEST_CS * 8)
#define LGUEST_DS (GDT_ENTRY_LGUEST_DS * 8)
#ifndef __ASSEMBLY__
#include <linux/types.h>
#include <linux/init.h>
@@ -18,34 +11,12 @@
#include <linux/wait.h>
#include <linux/err.h>
#include <asm/semaphore.h>
#include "irq_vectors.h"
#define GUEST_PL 1
struct lguest_regs
{
/* Manually saved part. */
unsigned long ebx, ecx, edx;
unsigned long esi, edi, ebp;
unsigned long gs;
unsigned long eax;
unsigned long fs, ds, es;
unsigned long trapnum, errcode;
/* Trap pushed part */
unsigned long eip;
unsigned long cs;
unsigned long eflags;
unsigned long esp;
unsigned long ss;
};
#include <asm/lguest.h>
void free_pagetables(void);
int init_pagetables(struct page **switcher_page, unsigned int pages);
/* Full 4G segment descriptors, suitable for CS and DS. */
#define FULL_EXEC_SEGMENT ((struct desc_struct){0x0000ffff, 0x00cf9b00})
#define FULL_SEGMENT ((struct desc_struct){0x0000ffff, 0x00cf9300})
struct lguest_dma_info
{
struct list_head list;
@@ -98,23 +69,6 @@ struct pgdir
spgd_t *pgdir;
};
/* This is a guest-specific page (mapped ro) into the guest. */
struct lguest_ro_state
{
/* Host information we need to restore when we switch back. */
u32 host_cr3;
struct Xgt_desc_struct host_idt_desc;
struct Xgt_desc_struct host_gdt_desc;
u32 host_sp;
/* Fields which are used when guest is running. */
struct Xgt_desc_struct guest_idt_desc;
struct Xgt_desc_struct guest_gdt_desc;
struct i386_hw_tss guest_tss;
struct desc_struct guest_idt[IDT_ENTRIES];
struct desc_struct guest_gdt[GDT_ENTRIES];
};
/* We have two pages shared with guests, per cpu. */
struct lguest_pages
{
@@ -180,11 +134,7 @@ struct lguest
/* Dead? */
const char *dead;
/* The GDT entries copied into lguest_ro_state when running. */
struct desc_struct gdt[GDT_ENTRIES];
/* The IDT entries: some copied into lguest_ro_state when running. */
struct desc_struct idt[IDT_ENTRIES];
struct lguest_arch arch;
/* Virtual clock device */
struct hrtimer hrt;
@@ -239,6 +189,15 @@ void map_switcher_in_guest(struct lguest *lg, struct lguest_pages *pages);
int demand_page(struct lguest *info, unsigned long cr2, int errcode);
void pin_page(struct lguest *lg, unsigned long vaddr);
/* <arch>/core.c: */
void lguest_arch_host_init(void);
void lguest_arch_host_fini(void);
void lguest_arch_run_guest(struct lguest *lg);
void lguest_arch_handle_trap(struct lguest *lg);
/* <arch>/switcher.S: */
extern char start_switcher_text[], end_switcher_text[], switch_to_guest[];
/* lguest_user.c: */
int lguest_device_init(void);
void lguest_device_remove(void);