#include "config.h"
#include <errno.h>
#include <assert.h>
#include <ctype.h>
#include <unistd.h>
#include <getopt.h>
#include <sys/types.h>
#include <sys/stat.h>
#include <fcntl.h>
#include <sys/mman.h>
#include <sys/socket.h>
#include <sys/un.h>
#include <libgen.h>
#include <endian.h>
#include <gelf.h>
#include <elf.h>
#include <libelf.h>
#include <argp.h>
#include "common.h"
#include "glib_wrapper.h"
#include "object.h"
#include "arch.h"
#include "arch_x86.h"
#include "arch_x86_64.h"
#include "evloop.h"
#include "binfile.h"
#include "dwdebug.h"
#include "dwdebug_priv.h"
#include "target_api.h"
#include "target.h"
#include "target_event.h"
#include "target_arch_x86.h"
#include "target_os.h"
#include "probe_api.h"
#include <xenctrl.h>
#include <xs.h>
#include "target_xen_vm.h"
#include "target_xen_vm_vmp.h"

Macros
#define	UNIX_PATH_MAX (size_t)sizeof(((struct sockaddr_un *) 0)->sun_path)

#define	RF "x"

#define	DRF "lx"

#define	XC_IF_INVALID (-1)

#define	XV_ARGP_USE_XENACCESS 0x550001

#define	XV_ARGP_USE_LIBVMI 0x550002

#define	XV_ARGP_CLEAR_MEM_CACHES 0x550003

#define	XV_ARGP_MEMCACHE_MMAP_SIZE 0x550004

#define	XV_ARGP_HIUE 0x550005

Functions
struct target *	xen_vm_instantiate (struct target_spec spec, struct evloop evloop)

int	xen_vm_attach_overlay_thread (struct target base, struct target overlay, tid_t newtid)

int	xen_vm_detach_overlay_thread (struct target base, struct target overlay, tid_t tid)

int	xen_vm_attach_evloop (struct target target, struct evloop evloop)

int	xen_vm_detach_evloop (struct target *target)

int	xen_vm_disable_hw_breakpoints (struct target *target, tid_t tid)

int	xen_vm_enable_hw_breakpoints (struct target *target, tid_t tid)

int	xen_vm_disable_hw_breakpoint (struct target *target, tid_t tid, REG dreg)

int	xen_vm_enable_hw_breakpoint (struct target *target, tid_t tid, REG dreg)

int	xen_vm_notify_sw_breakpoint (struct target *target, ADDR addr, int notification)

int	xen_vm_singlestep (struct target target, tid_t tid, int isbp, struct target overlay)

int	xen_vm_singlestep_end (struct target target, tid_t tid, struct target overlay)

uint64_t	xen_vm_get_tsc (struct target *target)

uint64_t	xen_vm_get_time (struct target *target)

uint64_t	xen_vm_get_counter (struct target *target)

int	xen_vm_enable_feature (struct target target, int feature, void arg)

int	xen_vm_disable_feature (struct target *target, int feature)

int	xen_vm_instr_can_switch_context (struct target *target, ADDR addr)

int	__xen_vm_vcpu_to_thread_regcache (struct target target, struct vcpu_guest_context context, struct target_thread *tthread, thread_ctxt_t tctxt)

int	__xen_vm_thread_regcache_to_vcpu (struct target target, struct target_thread tthread, thread_ctxt_t tctxt, struct vcpu_guest_context *context)

int	xen_vm_spec_to_argv (struct target_spec spec, int argc, char ***argv)

error_t	xen_vm_argp_parse_opt (int key, char arg, struct argp_state state)

struct xen_vm_spec *	xen_vm_build_spec (void)

void	xen_vm_free_spec (struct xen_vm_spec *xspec)

int	xen_vm_xc_attach (int xc_handle, int xce_handle)

int	xen_vm_xc_detach (int xc_handle, int xce_handle)

int	xen_vm_virq_attach (int xce_handle, XC_EVTCHN_PORT_T *dbg_port)

int	xen_vm_virq_detach (int xce_handle, XC_EVTCHN_PORT_T *dbg_port)

int	xen_vm_vmp_attach (char path, int cfd, char **cpath)

int	xen_vm_vmp_detach (int cfd, char *cpath)

int	xen_vm_vmp_launch ()

int	xen_vm_virq_or_vmp_attach_or_launch (struct target *target)

int	xen_vm_virq_or_vmp_detach (struct target *target)

int	xen_vm_virq_or_vmp_get_fd (struct target *target)

int	xen_vm_virq_or_vmp_read (struct target target, int vmid)

int	xen_vm_evloop_handler (int readfd, int fdtype, void *state)

unsigned char *	xen_vm_read_pid (struct target target, tid_t tid, ADDR vaddr, unsigned long length, unsigned char buf)

unsigned long	xen_vm_write_pid (struct target target, tid_t tid, ADDR vaddr, unsigned long length, unsigned char buf)

int	__xen_vm_thread_regcache_to_vcpu_64_reg_h (struct target target, struct target_thread tthread, thread_ctxt_t tctxt, REG reg, REGVAL regval, void *priv)

int	__xen_vm_thread_regcache_to_vcpu_64_raw_h (struct target target, struct target_thread tthread, thread_ctxt_t tctxt, REG reg, void rawval, int rawlen, void priv)

int	__xen_vm_thread_regcache_to_vcpu_32_reg_h (struct target target, struct target_thread tthread, thread_ctxt_t tctxt, REG reg, REGVAL regval, void *priv)

int	__xen_vm_thread_regcache_to_vcpu_32_raw_h (struct target target, struct target_thread tthread, thread_ctxt_t tctxt, REG reg, void rawval, int rawlen, void priv)

Variables
struct xen_vm_mem_ops	xen_vm_mem_ops_builtin

int	xc_handle = -1

int	xce_handle_fd = -1

struct target_ops	xen_vm_ops

struct argp_option	xen_vm_argp_opts []

struct argp	xen_vm_argp

char *	xen_vm_argp_header = "Xen Backend Options"

Macro Definition Documentation

#define DRF "lx"

Definition at line 229 of file target_xen_vm.c.

#define RF "x"

Definition at line 228 of file target_xen_vm.c.

#define UNIX_PATH_MAX (size_t)sizeof(((struct sockaddr_un *) 0)->sun_path)

Definition at line 33 of file target_xen_vm.c.

#define XC_IF_INVALID (-1)

Definition at line 263 of file target_xen_vm.c.

#define XV_ARGP_CLEAR_MEM_CACHES 0x550003

Definition at line 358 of file target_xen_vm.c.

#define XV_ARGP_HIUE 0x550005

Definition at line 360 of file target_xen_vm.c.

#define XV_ARGP_MEMCACHE_MMAP_SIZE 0x550004

Definition at line 359 of file target_xen_vm.c.

#define XV_ARGP_USE_LIBVMI 0x550002

Definition at line 357 of file target_xen_vm.c.

#define XV_ARGP_USE_XENACCESS 0x550001

Definition at line 356 of file target_xen_vm.c.

Function Documentation

int __xen_vm_thread_regcache_to_vcpu	(	struct target *	target,
		struct target_thread *	tthread,
		thread_ctxt_t	tctxt,
		struct vcpu_guest_context *	context
	)

Definition at line 5127 of file target_xen_vm.c.

int __xen_vm_thread_regcache_to_vcpu_32_raw_h	(	struct target *	target,
		struct target_thread *	tthread,
		thread_ctxt_t	tctxt,
		REG	reg,
		void *	rawval,
		int	rawlen,
		void *	priv
	)

Definition at line 5097 of file target_xen_vm.c.

int __xen_vm_thread_regcache_to_vcpu_32_reg_h	(	struct target *	target,
		struct target_thread *	tthread,
		thread_ctxt_t	tctxt,
		REG	reg,
		REGVAL	regval,
		void *	priv
	)

Definition at line 5066 of file target_xen_vm.c.

int __xen_vm_thread_regcache_to_vcpu_64_raw_h	(	struct target *	target,
		struct target_thread *	tthread,
		thread_ctxt_t	tctxt,
		REG	reg,
		void *	rawval,
		int	rawlen,
		void *	priv
	)

Definition at line 5036 of file target_xen_vm.c.

int __xen_vm_thread_regcache_to_vcpu_64_reg_h	(	struct target *	target,
		struct target_thread *	tthread,
		thread_ctxt_t	tctxt,
		REG	reg,
		REGVAL	regval,
		void *	priv
	)

Definition at line 5000 of file target_xen_vm.c.

int __xen_vm_vcpu_to_thread_regcache	(	struct target *	target,
		struct vcpu_guest_context *	context,
		struct target_thread *	tthread,
		thread_ctxt_t	tctxt
	)

Definition at line 4939 of file target_xen_vm.c.

error_t xen_vm_argp_parse_opt	(	int	key,
		char *	arg,
		struct argp_state *	state
	)

Definition at line 500 of file target_xen_vm.c.

int xen_vm_attach_evloop	(	struct target *	target,
		struct evloop *	evloop
	)

Definition at line 4425 of file target_xen_vm.c.

int xen_vm_attach_overlay_thread	(	struct target *	base,
		struct target *	overlay,
		tid_t	newtid
	)

Definition at line 2826 of file target_xen_vm.c.

struct xen_vm_spec* xen_vm_build_spec ( void )

Definition at line 639 of file target_xen_vm.c.

int xen_vm_detach_evloop ( struct target * target )

Definition at line 4449 of file target_xen_vm.c.

int xen_vm_detach_overlay_thread	(	struct target *	base,
		struct target *	overlay,
		tid_t	tid
	)

Definition at line 2843 of file target_xen_vm.c.

int xen_vm_disable_feature	(	struct target *	target,
		int	feature
	)

Definition at line 5854 of file target_xen_vm.c.

int xen_vm_disable_hw_breakpoint	(	struct target *	target,
		tid_t	tid,
		REG	dreg
	)

Definition at line 5453 of file target_xen_vm.c.

int xen_vm_disable_hw_breakpoints	(	struct target *	target,
		tid_t	tid
	)

Definition at line 5415 of file target_xen_vm.c.

int xen_vm_enable_feature	(	struct target *	target,
		int	feature,
		void *	arg
	)

Definition at line 5835 of file target_xen_vm.c.

int xen_vm_enable_hw_breakpoint	(	struct target *	target,
		tid_t	tid,
		REG	dreg
	)

Definition at line 5503 of file target_xen_vm.c.

int xen_vm_enable_hw_breakpoints	(	struct target *	target,
		tid_t	tid
	)

Definition at line 5434 of file target_xen_vm.c.

int xen_vm_evloop_handler	(	int	readfd,
		int	fdtype,
		void *	state
	)

Definition at line 4391 of file target_xen_vm.c.

void xen_vm_free_spec ( struct xen_vm_spec * xspec )

Definition at line 649 of file target_xen_vm.c.

uint64_t xen_vm_get_counter ( struct target * target )

Definition at line 5803 of file target_xen_vm.c.

uint64_t xen_vm_get_time ( struct target * target )

Definition at line 5792 of file target_xen_vm.c.

uint64_t xen_vm_get_tsc ( struct target * target )

Definition at line 5761 of file target_xen_vm.c.

struct target * xen_vm_instantiate	(	struct target_spec *	spec,
		struct evloop *	evloop
	)

These are the only user-visible functions.

Definition at line 634 of file target_xen_vm.c.

int xen_vm_instr_can_switch_context	(	struct target *	target,
		ADDR	addr
	)

Definition at line 5744 of file target_xen_vm.c.

int xen_vm_notify_sw_breakpoint	(	struct target *	target,
		ADDR	addr,
		int	notification
	)

Definition at line 5554 of file target_xen_vm.c.

unsigned char* xen_vm_read_pid	(	struct target *	target,
		tid_t	tid,
		ADDR	vaddr,
		unsigned long	length,
		unsigned char *	buf
	)

Definition at line 4793 of file target_xen_vm.c.

int xen_vm_singlestep	(	struct target *	target,
		tid_t	tid,
		int	isbp,
		struct target *	overlay
	)

Definition at line 5588 of file target_xen_vm.c.

int xen_vm_singlestep_end	(	struct target *	target,
		tid_t	tid,
		struct target *	overlay
	)

Definition at line 5682 of file target_xen_vm.c.

int xen_vm_spec_to_argv	(	struct target_spec *	spec,
		int *	argc,
		char ***	argv
	)

Definition at line 392 of file target_xen_vm.c.

int xen_vm_virq_attach	(	int	xce_handle,
		XC_EVTCHN_PORT_T *	dbg_port
	)

Definition at line 1932 of file target_xen_vm.c.

int xen_vm_virq_detach	(	int	xce_handle,
		XC_EVTCHN_PORT_T *	dbg_port
	)

Definition at line 1954 of file target_xen_vm.c.

int xen_vm_virq_or_vmp_attach_or_launch ( struct target * target )

Definition at line 2167 of file target_xen_vm.c.

int xen_vm_virq_or_vmp_detach ( struct target * target )

Definition at line 2213 of file target_xen_vm.c.

int xen_vm_virq_or_vmp_get_fd ( struct target * target )

Definition at line 2225 of file target_xen_vm.c.

int xen_vm_virq_or_vmp_read	(	struct target *	target,
		int *	vmid
	)

Definition at line 2237 of file target_xen_vm.c.

int xen_vm_vmp_attach	(	char *	path,
		int *	cfd,
		char **	cpath
	)

Definition at line 1969 of file target_xen_vm.c.

int xen_vm_vmp_detach	(	int *	cfd,
		char **	cpath
	)

Definition at line 2141 of file target_xen_vm.c.

int xen_vm_vmp_launch ( )

Definition at line 2155 of file target_xen_vm.c.

unsigned long xen_vm_write_pid	(	struct target *	target,
		tid_t	tid,
		ADDR	vaddr,
		unsigned long	length,
		unsigned char *	buf
	)

Definition at line 4813 of file target_xen_vm.c.

int xen_vm_xc_attach	(	int *	xc_handle,
		int *	xce_handle
	)

Definition at line 1880 of file target_xen_vm.c.

int xen_vm_xc_detach	(	int *	xc_handle,
		int *	xce_handle
	)

Definition at line 1913 of file target_xen_vm.c.

Variable Documentation

int xc_handle = -1

Definition at line 261 of file target_xen_vm.c.

int xce_handle_fd = -1

Definition at line 265 of file target_xen_vm.c.

struct argp xen_vm_argp

Initial value:

= { 
    xen_vm_argp_opts,xen_vm_argp_parse_opt,NULL,NULL,NULL,NULL,NULL
}

Definition at line 625 of file target_xen_vm.c.

char* xen_vm_argp_header = "Xen Backend Options"

Definition at line 628 of file target_xen_vm.c.

struct argp_option xen_vm_argp_opts[]

Initial value:

= {
    
    { "domain",'m',"DOMAIN",0,"The Xen domain ID or name.",-4 },
    { "kernel-filename",'K',"FILE",0,
          "Override xenstore kernel filepath for guest.",-4 },
    { "no-clear-hw-debug-regs",'H',NULL,0,
          "Don't clear hardware debug registers at target attach.",-4 },
    { "clear-mem-caches-each-exception",XV_ARGP_CLEAR_MEM_CACHES,NULL,0,
          "Clear mem caches on each debug exception.",-4 },
    { "memcache-mmap-size",XV_ARGP_MEMCACHE_MMAP_SIZE,"BYTES",0,
          "Max size (bytes) of the mmap cache (default 128MB).",-4 },
    { "no-hvm-setcontext",'V',NULL,0,
          "Don't use HVM-specific libxc get/set context functions to access"
          "virtual CPU info.",-4 },
    { "configfile",'c',"FILE",0,"The Xen config file.",-4 },
    { "replaydir",'r',"DIR",0,"The XenTT replay directory.",-4 },
    { "no-use-multiplexer",'M',NULL,0,"Do not spawn/attach to the Xen multiplexer server",-4 },
    { "dominfo-timeout",'T',"MICROSECONDS",0,"If libxc gets a \"NULL\" dominfo status, the number of microseconds we should keep retrying",-4 },
    { "hypervisor-ignores-userspace-exceptions",XV_ARGP_HIUE,NULL,0,"If your Xen hypervisor is not a Utah-patched version, make sure to supply this flag!",-4 },
    { 0,0,0,0,0,0 }
}

Definition at line 362 of file target_xen_vm.c.

struct xen_vm_mem_ops xen_vm_mem_ops_builtin

Definition at line 754 of file target_xen_vm_mem_builtin.c.

struct target_ops xen_vm_ops

Definition at line 275 of file target_xen_vm.c.

Macros

Functions

Variables

Macro Definition Documentation

Function Documentation

Variable Documentation