Skip to content

Q
qemu

openeuler / qemu

通知 10
Star 0
Fork 0
Q
qemu
切换分支/标签
  1. 22 5月, 2009 2 次提交
    • J
      serial: fix lost character after sysrq · 40ff1624
      由 Jason Wessel 提交于 
      After creating an automated regression test to test the sysrq
responses while running a linux image in qemu, I found that the
simulated uart was eating the character right after the sysrq about
75% of the time.

The problem is that the qemu sets the LSR_DR (data ready) bit on a
serial break.  The automated tests can send a break and the sysrq
character quickly enough that the qemu serial fifo has a real
character available. When there is valid character in the fifo, it
gets consumed by the serial driver in the guest OS.

The real hardware also appears to set the LSR_DR but always appears to
have a null byte in this condition.  This patch changes the qemu
behavior to match the tested characteristics of a real 16550 chip.
Signed-off-by: NJason Wessel <jason.wessel@windriver.com>
      40ff1624
    • 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
  3. 06 2月, 2009 1 次提交
  5. 18 1月, 2009 1 次提交
  7. 02 12月, 2008 1 次提交
  9. 20 9月, 2008 1 次提交
  11. 17 9月, 2008 1 次提交
    • B
      16550A UART: RHR irq enable bit also masks the Rx timeout irq. · 5628a626
      由 balrog 提交于 
      The "Rx timeout" (aka. Character Timeout Indication) has no separate mask
bit in the IER register and according to the specs reading RHR is the only
way to reset the irq.  However on the hardware (tested on OMAP2 UART which
is an extended 16550A) the RHR_IT bit in IER disables the irc, too.  Linux
bluetooth serial dongle driver for N800 depends on this behavior.


git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@5239 c046a42c-6fe2-441c-8c8c-71466251a162
      5628a626
  13. 12 8月, 2008 1 次提交
  15. 11 8月, 2008 1 次提交
  17. 05 5月, 2008 2 次提交
  19. 10 2月, 2008 1 次提交
  21. 25 11月, 2007 1 次提交
  23. 18 11月, 2007 1 次提交
  25. 17 9月, 2007 2 次提交
  27. 09 6月, 2007 1 次提交
  29. 07 6月, 2007 1 次提交
  31. 08 4月, 2007 1 次提交
  33. 01 4月, 2007 1 次提交
  35. 28 1月, 2007 1 次提交
  37. 27 8月, 2006 1 次提交
  39. 13 4月, 2006 1 次提交
  41. 24 11月, 2005 1 次提交
  43. 11 11月, 2005 1 次提交
  45. 09 11月, 2005 1 次提交
  47. 06 11月, 2005 1 次提交
  49. 25 8月, 2004 1 次提交
  51. 15 7月, 2004 1 次提交
  53. 08 4月, 2004 1 次提交
  55. 01 4月, 2004 2 次提交
  57. 15 3月, 2004 1 次提交
  59. 14 3月, 2004 1 次提交