#include <linux/types.h>
#include <linux/init.h>
#include <linux/stringify.h>
#include <linux/lguest.h>
#include <linux/lguest_launcher.h>
#include <linux/wait.h>
#include <linux/hrtimer.h>
#include <linux/err.h>
#include <linux/slab.h>
#include <asm/lguest.h>

Data Structures
struct	pgdir

struct	lguest_pages

struct	lg_cpu

struct	lg_eventfd

struct	lg_eventfd_map

struct	lguest

Macros
#define	CHANGED_IDT 1

#define	CHANGED_GDT 2

#define	CHANGED_GDT_TLS 4 /* Actually a subset of CHANGED_GDT */

#define	CHANGED_ALL 3

#define	lgread(cpu, addr, type) ({ type _v; __lgread((cpu), &_v, (addr), sizeof(_v)); _v; })

#define	lgwrite(cpu, addr, type, val)

#define	pgd_flags(x) (pgd_val(x) & ~PAGE_MASK)

#define	pgd_pfn(x) (pgd_val(x) >> PAGE_SHIFT)

#define	pmd_flags(x) (pmd_val(x) & ~PAGE_MASK)

#define	pmd_pfn(x) (pmd_val(x) >> PAGE_SHIFT)

#define	kill_guest(cpu, fmt...)

Functions
void	free_pagetables (void)

int	init_pagetables (struct page **switcher_page, unsigned int pages)

struct lguest_pages	__attribute__ ((aligned(PAGE_SIZE)))

bool	lguest_address_ok (const struct lguest *lg, unsigned long addr, unsigned long len)

void	__lgread (struct lg_cpu , void , unsigned long, unsigned)

void	__lgwrite (struct lg_cpu , unsigned long, const void , unsigned)

int	run_guest (struct lg_cpu cpu, unsigned long __user user)

unsigned int	interrupt_pending (struct lg_cpu cpu, bool more)

void	try_deliver_interrupt (struct lg_cpu *cpu, unsigned int irq, bool more)

void	set_interrupt (struct lg_cpu *cpu, unsigned int irq)

bool	deliver_trap (struct lg_cpu *cpu, unsigned int num)

void	load_guest_idt_entry (struct lg_cpu *cpu, unsigned int i, u32 low, u32 hi)

void	guest_set_stack (struct lg_cpu *cpu, u32 seg, u32 esp, unsigned int pages)

void	pin_stack_pages (struct lg_cpu *cpu)

void	setup_default_idt_entries (struct lguest_ro_state state, const unsigned long def)

void	copy_traps (const struct lg_cpu cpu, struct desc_struct idt, const unsigned long *def)

void	guest_set_clockevent (struct lg_cpu *cpu, unsigned long delta)

bool	send_notify_to_eventfd (struct lg_cpu *cpu)

void	init_clockdev (struct lg_cpu *cpu)

bool	check_syscall_vector (struct lguest *lg)

int	init_interrupts (void)

void	free_interrupts (void)

void	setup_default_gdt_entries (struct lguest_ro_state *state)

void	setup_guest_gdt (struct lg_cpu *cpu)

void	load_guest_gdt_entry (struct lg_cpu *cpu, unsigned int i, u32 low, u32 hi)

void	guest_load_tls (struct lg_cpu *cpu, unsigned long tls_array)

void	copy_gdt (const struct lg_cpu cpu, struct desc_struct gdt)

void	copy_gdt_tls (const struct lg_cpu cpu, struct desc_struct gdt)

int	init_guest_pagetable (struct lguest *lg)

void	free_guest_pagetable (struct lguest *lg)

void	guest_new_pagetable (struct lg_cpu *cpu, unsigned long pgtable)

void	guest_set_pgd (struct lguest *lg, unsigned long gpgdir, u32 i)

void	guest_pagetable_clear_all (struct lg_cpu *cpu)

void	guest_pagetable_flush_user (struct lg_cpu *cpu)

void	guest_set_pte (struct lg_cpu *cpu, unsigned long gpgdir, unsigned long vaddr, pte_t val)

void	map_switcher_in_guest (struct lg_cpu cpu, struct lguest_pages pages)

bool	demand_page (struct lg_cpu *cpu, unsigned long cr2, int errcode)

void	pin_page (struct lg_cpu *cpu, unsigned long vaddr)

unsigned long	guest_pa (struct lg_cpu *cpu, unsigned long vaddr)

void	page_table_guest_data_init (struct lg_cpu *cpu)

void	lguest_arch_host_init (void)

void	lguest_arch_host_fini (void)

void	lguest_arch_run_guest (struct lg_cpu *cpu)

void	lguest_arch_handle_trap (struct lg_cpu *cpu)

int	lguest_arch_init_hypercalls (struct lg_cpu *cpu)

int	lguest_arch_do_hcall (struct lg_cpu cpu, struct hcall_args args)

void	lguest_arch_setup_regs (struct lg_cpu *cpu, unsigned long start)

int	lguest_device_init (void)

void	lguest_device_remove (void)

void	do_hypercalls (struct lg_cpu *cpu)

void	write_timestamp (struct lg_cpu *cpu)

Variables
char	spare [PAGE_SIZE-sizeof(struct lguest_regs)]

struct lguest_regs	regs

struct lguest_ro_state	state

struct lg_cpu	__attribute__

struct mutex	lguest_lock

char	start_switcher_text []

char	end_switcher_text []

char	switch_to_guest []

Macro Definition Documentation

#define CHANGED_ALL 3

Definition at line 38 of file lg.h.

#define CHANGED_GDT 2

Definition at line 36 of file lg.h.

#define CHANGED_GDT_TLS 4 /* Actually a subset of CHANGED_GDT */

Definition at line 37 of file lg.h.

#define CHANGED_IDT 1

Definition at line 35 of file lg.h.

#define kill_guest	(	cpu,
		fmt...
	)

Value:

do {                                \
    if (!(cpu)->lg->dead) {                 \
        (cpu)->lg->dead = kasprintf(GFP_ATOMIC, fmt);   \
        if (!(cpu)->lg->dead)               \
            (cpu)->lg->dead = ERR_PTR(-ENOMEM); \
    }                           \
} while(0)

Definition at line 249 of file lg.h.

#define lgread	(	cpu,
		addr,
		type
	)	({ type _v; __lgread((cpu), &_v, (addr), sizeof(_v)); _v; })

Definition at line 135 of file lg.h.

#define lgwrite	(	cpu,
		addr,
		type,
		val
	)

Value:

do {                            \
        typecheck(type, val);               \
        __lgwrite((cpu), (addr), &(val), sizeof(val));  \
    } while(0)

Definition at line 139 of file lg.h.

#define pgd_flags ( x ) (pgd_val(x) & ~PAGE_MASK)

Definition at line 153 of file lg.h.

#define pgd_pfn ( x ) (pgd_val(x) >> PAGE_SHIFT)

Definition at line 154 of file lg.h.

#define pmd_flags ( x ) (pmd_val(x) & ~PAGE_MASK)

Definition at line 155 of file lg.h.

#define pmd_pfn ( x ) (pmd_val(x) >> PAGE_SHIFT)

Definition at line 156 of file lg.h.

Function Documentation

struct lguest_pages __attribute__ ( (aligned(PAGE_SIZE)) )

void __lgread	(	struct lg_cpu *	,
		void *	,
		unsigned	long,
		unsigned
	)

Definition at line 182 of file core.c.

void __lgwrite	(	struct lg_cpu *	,
		unsigned	long,
		const void *	,
		unsigned
	)

Definition at line 193 of file core.c.

bool check_syscall_vector ( struct lguest * lg )

Definition at line 288 of file interrupts_and_traps.c.

void copy_gdt	(	const struct lg_cpu *	cpu,
		struct desc_struct *	gdt
	)

Definition at line 165 of file segments.c.

void copy_gdt_tls	(	const struct lg_cpu *	cpu,
		struct desc_struct *	gdt
	)

Definition at line 152 of file segments.c.

void copy_traps	(	const struct lg_cpu *	cpu,
		struct desc_struct *	idt,
		const unsigned long *	def
	)

Definition at line 567 of file interrupts_and_traps.c.

bool deliver_trap	(	struct lg_cpu *	cpu,
		unsigned int	num
	)

Definition at line 331 of file interrupts_and_traps.c.

bool demand_page	(	struct lg_cpu *	cpu,
		unsigned long	cr2,
		int	errcode
	)

Definition at line 312 of file page_tables.c.

void do_hypercalls ( struct lg_cpu * cpu )

Definition at line 260 of file hypercalls.c.

void free_guest_pagetable ( struct lguest * lg )

Definition at line 1009 of file page_tables.c.

void free_interrupts ( void )

Definition at line 314 of file interrupts_and_traps.c.

void free_pagetables ( void )

Definition at line 1149 of file page_tables.c.

void guest_load_tls	(	struct lg_cpu *	cpu,
		unsigned long	tls_array
	)

Definition at line 210 of file segments.c.

void guest_new_pagetable	(	struct lg_cpu *	cpu,
		unsigned long	pgtable
	)

Definition at line 785 of file page_tables.c.

unsigned long guest_pa	(	struct lg_cpu *	cpu,
		unsigned long	vaddr
	)

Definition at line 623 of file page_tables.c.

void guest_pagetable_clear_all ( struct lg_cpu * cpu )

Definition at line 771 of file page_tables.c.

void guest_pagetable_flush_user ( struct lg_cpu * cpu )

Definition at line 615 of file page_tables.c.

void guest_set_clockevent	(	struct lg_cpu *	cpu,
		unsigned long	delta
	)

Definition at line 613 of file interrupts_and_traps.c.

void guest_set_pgd	(	struct lguest *	lg,
		unsigned long	gpgdir,
		u32	i
	)

Definition at line 932 of file page_tables.c.

void guest_set_pte	(	struct lg_cpu *	cpu,
		unsigned long	gpgdir,
		unsigned long	vaddr,
		pte_t	val
	)

Definition at line 897 of file page_tables.c.

void guest_set_stack	(	struct lg_cpu *	cpu,
		u32	seg,
		u32	esp,
		unsigned int	pages
	)

Definition at line 438 of file interrupts_and_traps.c.

void init_clockdev ( struct lg_cpu * cpu )

Definition at line 643 of file interrupts_and_traps.c.

int init_guest_pagetable ( struct lguest * lg )

Definition at line 962 of file page_tables.c.

int init_interrupts ( void )

Definition at line 298 of file interrupts_and_traps.c.

int init_pagetables	(	struct page **	switcher_page,
		unsigned int	pages
	)

Definition at line 1132 of file page_tables.c.

unsigned int interrupt_pending	(	struct lg_cpu *	cpu,
		bool *	more
	)

Definition at line 158 of file interrupts_and_traps.c.

bool lguest_address_ok	(	const struct lguest *	lg,
		unsigned long	addr,
		unsigned long	len
	)

Definition at line 171 of file core.c.

int lguest_arch_do_hcall	(	struct lg_cpu *	cpu,
		struct hcall_args *	args
	)

Definition at line 613 of file core.c.

void lguest_arch_handle_trap ( struct lg_cpu * cpu )

Definition at line 362 of file core.c.

void lguest_arch_host_fini ( void )

Definition at line 599 of file core.c.

void lguest_arch_host_init ( void )

Definition at line 463 of file core.c.

int lguest_arch_init_hypercalls ( struct lg_cpu * cpu )

Definition at line 633 of file core.c.

void lguest_arch_run_guest ( struct lg_cpu * cpu )

Definition at line 199 of file core.c.

void lguest_arch_setup_regs	(	struct lg_cpu *	cpu,
		unsigned long	start
	)

Definition at line 682 of file core.c.

int lguest_device_init ( void )

Definition at line 534 of file lguest_user.c.

void lguest_device_remove ( void )

Definition at line 539 of file lguest_user.c.

void load_guest_gdt_entry	(	struct lg_cpu *	cpu,
		unsigned int	i,
		u32	low,
		u32	hi
	)

Definition at line 182 of file segments.c.

void load_guest_idt_entry	(	struct lg_cpu *	cpu,
		unsigned int	i,
		u32	low,
		u32	hi
	)

Definition at line 499 of file interrupts_and_traps.c.

void map_switcher_in_guest	(	struct lg_cpu *	cpu,
		struct lguest_pages *	pages
	)

Definition at line 1028 of file page_tables.c.

void page_table_guest_data_init ( struct lg_cpu * cpu )

Definition at line 978 of file page_tables.c.

void pin_page	(	struct lg_cpu *	cpu,
		unsigned long	vaddr
	)

Definition at line 527 of file page_tables.c.

void pin_stack_pages ( struct lg_cpu * cpu )

Definition at line 410 of file interrupts_and_traps.c.

int run_guest	(	struct lg_cpu *	cpu,
		unsigned long __user *	user
	)

Definition at line 207 of file core.c.

bool send_notify_to_eventfd ( struct lg_cpu * cpu )

Definition at line 27 of file lguest_user.c.

void set_interrupt	(	struct lg_cpu *	cpu,
		unsigned int	irq
	)

Definition at line 256 of file interrupts_and_traps.c.

void setup_default_gdt_entries ( struct lguest_ro_state * state )

Definition at line 106 of file segments.c.

void setup_default_idt_entries	(	struct lguest_ro_state *	state,
		const unsigned long *	def
	)

Definition at line 553 of file interrupts_and_traps.c.

void setup_guest_gdt ( struct lg_cpu * cpu )

Definition at line 136 of file segments.c.

void try_deliver_interrupt	(	struct lg_cpu *	cpu,
		unsigned int	irq,
		bool	more
	)

Definition at line 187 of file interrupts_and_traps.c.

void write_timestamp ( struct lg_cpu * cpu )

Definition at line 305 of file hypercalls.c.

Variable Documentation

struct lg_cpu __attribute__

char end_switcher_text[]

struct mutex lguest_lock

struct lguest_regs regs

Definition at line 36 of file lg.h.

__u8 spare

Definition at line 35 of file lg.h.

char start_switcher_text[]

struct lguest_ro_state state

Definition at line 39 of file lg.h.

char switch_to_guest[]

Data Structures

Macros

Functions

Variables

Macro Definition Documentation

Function Documentation

Variable Documentation