Commit 884cdc48 authored by Peter Maydell's avatar Peter Maydell Committed by Riku Voipio
Browse files

linux-user: Add loop control ioctls 



Add support for the /dev/loop-control ioctls:
 LOOP_CTL_ADD
 LOOP_CTL_REMOVE
 LOOP_CTL_GET_FREE

[RV: fixed to apply to new header guards]
Signed-off-by: default avatarPeter Maydell <peter.maydell@linaro.org>
Reviewed-by: default avatarLaurent Vivier <laurent@vivier.eu>
Signed-off-by: default avatarRiku Voipio <riku.voipio@linaro.org>
parent c815701e

linux-user/ioctls.h

+4 −0
Original line number Diff line number Diff line
@@ -327,6 +327,10 @@ 
  IOCTL(LOOP_GET_STATUS64, IOC_W, MK_PTR(MK_STRUCT(STRUCT_loop_info64)))

  IOCTL(LOOP_CHANGE_FD, 0, TYPE_INT)



  IOCTL(LOOP_CTL_ADD, 0, TYPE_INT)

  IOCTL(LOOP_CTL_REMOVE, 0, TYPE_INT)

  IOCTL(LOOP_CTL_GET_FREE, 0, TYPE_NULL)



  IOCTL(MTIOCTOP, IOC_W, MK_PTR(MK_STRUCT(STRUCT_mtop)))

  IOCTL(MTIOCGET, IOC_R, MK_PTR(MK_STRUCT(STRUCT_mtget)))

  IOCTL(MTIOCPOS, IOC_R, MK_PTR(MK_STRUCT(STRUCT_mtpos)))

linux-user/linux_loop.h

+10 −1
Original line number Diff line number Diff line 
/* Copied from 2.6.25 kernel headers to avoid problems on older hosts.  */

/* Copied from 2.6.25 kernel headers to avoid problems on older hosts,

 * and subsequently updated to match newer additions to the API.

 */



#ifndef LINUX_LOOP_H

#define LINUX_LOOP_H
@@ -92,5 +94,12 @@ struct loop_info64 { 
#define LOOP_SET_STATUS64	0x4C04

#define LOOP_GET_STATUS64	0x4C05

#define LOOP_CHANGE_FD		0x4C06

#define LOOP_SET_CAPACITY       0x4C07

#define LOOP_SET_DIRECT_IO      0x4C08



/* /dev/loop-control interface */

#define LOOP_CTL_ADD            0x4C80

#define LOOP_CTL_REMOVE         0x4C81

#define LOOP_CTL_GET_FREE       0x4C82



#endif

linux-user/syscall_defs.h

+4 −0
Original line number Diff line number Diff line
@@ -1117,6 +1117,10 @@ struct target_pollfd { 
#define TARGET_LOOP_GET_STATUS64      0x4C05

#define TARGET_LOOP_CHANGE_FD         0x4C06



#define TARGET_LOOP_CTL_ADD           0x4C80

#define TARGET_LOOP_CTL_REMOVE        0x4C81

#define TARGET_LOOP_CTL_GET_FREE      0x4C82



/* fb ioctls */

#define TARGET_FBIOGET_VSCREENINFO    0x4600

#define TARGET_FBIOPUT_VSCREENINFO    0x4601