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  1. 22 8月, 2011 1 次提交
    • B
      slavio_timer: avoid structure holes spotted by pahole · f90074f4
      由 Blue Swirl 提交于 
      Report from pahole on amd64 host:
struct SLAVIO_TIMERState {
	SysBusDevice               busdev;               /*     0  5648 */
	/* --- cacheline 88 boundary (5632 bytes) was 16 bytes ago --- */
	uint32_t                   num_cpus;             /*  5648     4 */

	/* XXX 4 bytes hole, try to pack */

	CPUTimerState              cputimer[17];         /*  5656   816 */
	/* --- cacheline 101 boundary (6464 bytes) was 8 bytes ago --- */
	uint32_t                   cputimer_mode;        /*  6472     4 */

	/* size: 6480, cachelines: 102 */
	/* sum members: 6472, holes: 1, sum holes: 4 */
	/* padding: 4 */
	/* last cacheline: 16 bytes */
};	/* definitions: 1 */

struct CPUTimerState {
	qemu_irq                   irq;                  /*     0     8 */
	ptimer_state *             timer;                /*     8     8 */
	uint32_t                   count;                /*    16     4 */
	uint32_t                   counthigh;            /*    20     4 */
	uint32_t                   reached;              /*    24     4 */

	/* XXX 4 bytes hole, try to pack */

	uint64_t                   limit;                /*    32     8 */
	uint32_t                   running;              /*    40     4 */

	/* size: 48, cachelines: 1 */
	/* sum members: 40, holes: 1, sum holes: 4 */
	/* padding: 4 */
	/* last cacheline: 48 bytes */
};	/* definitions: 1 */

Fix by rearranging the structures to avoid padding.
Signed-off-by: NBlue Swirl <blauwirbel@gmail.com>
      f90074f4
  3. 21 8月, 2011 1 次提交
  5. 11 12月, 2010 1 次提交
    • A
      Add endianness as io mem parameter · 2507c12a
      由 Alexander Graf 提交于 
      As stated before, devices can be little, big or native endian. The
target endianness is not of their concern, so we need to push things
down a level.

This patch adds a parameter to cpu_register_io_memory that allows a
device to choose its endianness. For now, all devices simply choose
native endian, because that's the same behavior as before.
Signed-off-by: NAlexander Graf <agraf@suse.de>
Signed-off-by: NBlue Swirl <blauwirbel@gmail.com>
      2507c12a
  7. 31 10月, 2010 1 次提交
  9. 03 8月, 2010 1 次提交
  11. 03 4月, 2010 1 次提交
  13. 24 1月, 2010 1 次提交
  15. 07 11月, 2009 1 次提交
  17. 25 10月, 2009 1 次提交
  19. 02 10月, 2009 2 次提交
  21. 01 9月, 2009 2 次提交
  23. 28 8月, 2009 1 次提交
    • G
      qdev: add return value to init() callbacks. · 81a322d4
      由 Gerd Hoffmann 提交于 
      Sorry folks, but it has to be.  One more of these invasive qdev patches.

We have a serious design bug in the qdev interface:  device init
callbacks can't signal failure because the init() callback has no
return value.  This patch fixes it.

We have already one case in-tree where this is needed:
Try -device virtio-blk-pci (without drive= specified) and watch qemu
segfault.  This patch fixes it.

With usb+scsi being converted to qdev we'll get more devices where the
init callback can fail for various reasons.
Signed-off-by: NGerd Hoffmann <kraxel@redhat.com>
Signed-off-by: NAnthony Liguori <aliguori@us.ibm.com>
      81a322d4
  25. 26 8月, 2009 1 次提交
  27. 11 8月, 2009 1 次提交
  29. 09 8月, 2009 2 次提交
  31. 21 7月, 2009 1 次提交
  33. 17 7月, 2009 1 次提交
    • G
      qdev: rework device properties. · ee6847d1
      由 Gerd Hoffmann 提交于 
      This patch is a major overhaul of the device properties.  The properties
are saved directly in the device state struct now, the linked list of
property values is gone.

Advantages:
  * We don't have to maintain the list with the property values.
  * The value in the property list and the value actually used by
    the device can't go out of sync any more (used to happen for
    the pci.devfn == -1 case) because there is only one place where
    the value is stored.
  * A record describing the property is required now, you can't set
    random properties any more.

There are bus-specific and device-specific properties.  The former
should be used for properties common to all bus drivers.  Typical
use case is bus addressing, i.e. pci.devfn and i2c.address.

Properties have a PropertyInfo struct attached with name, size and
function pointers to parse and print properties.  A few common property
types have PropertyInfos defined in qdev-properties.c.  Drivers are free
to implement their own very special property parsers if needed.

Properties can have default values.  If unset they are zero-filled.
Signed-off-by: NGerd Hoffmann <kraxel@redhat.com>
Signed-off-by: NAnthony Liguori <aliguori@us.ibm.com>
      ee6847d1
  35. 15 7月, 2009 1 次提交
  37. 30 6月, 2009 1 次提交
  39. 18 6月, 2009 1 次提交
  41. 17 6月, 2009 1 次提交
  43. 22 5月, 2009 1 次提交
    • J
      Introduce reset notifier order · 8217606e
      由 Jan Kiszka 提交于 
      Add the parameter 'order' to qemu_register_reset and sort callbacks on
registration. On system reset, callbacks with lower order will be
invoked before those with higher order. Update all existing users to the
standard order 0.

Note: At least for x86, the existing users seem to assume that handlers
are called in their registration order. Therefore, the patch preserves
this property. If someone feels bored, (s)he could try to identify this
dependency and express it properly on callback registration.
Signed-off-by: NJan Kiszka <jan.kiszka@siemens.com>
Signed-off-by: NAnthony Liguori <aliguori@us.ibm.com>
      8217606e
  45. 14 5月, 2009 1 次提交
  47. 06 2月, 2009 1 次提交
  49. 03 12月, 2008 1 次提交
  51. 13 5月, 2008 1 次提交
  53. 10 5月, 2008 1 次提交
  55. 05 3月, 2008 1 次提交
  57. 26 1月, 2008 2 次提交
  59. 02 1月, 2008 1 次提交
  61. 30 12月, 2007 1 次提交
  63. 28 12月, 2007 1 次提交
  65. 20 12月, 2007 2 次提交
  67. 18 12月, 2007 2 次提交