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2008-10-31Clarify qemu_bh_schedule_idle() usagealiguori1-0/+6
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com> git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@5576 c046a42c-6fe2-441c-8c8c-71466251a162
2008-10-31Make bottom halves more robustaliguori1-0/+1
Bottom halves are supposed to not complete until the next iteration of the main loop. This is very important to ensure that guests can not cause stack overflows in the block driver code. Right now, if you attempt to schedule a bottom half within a bottom half callback, you will enter an infinite loop. This patch uses the same logic that we use for the IOHandler loop to make the bottom half processing robust in list manipulation while in a callback. This patch also introduces idle scheduling for bottom halves. qemu_bh_poll() returns an indication of whether any bottom halves were successfully executed. qemu_aio_wait() uses this to immediately return if a bottom half was executed instead of waiting for a completion notification. qemu_bh_schedule_idle() works around this by not reporting the callback has run in the qemu_bh_poll loop. qemu_aio_wait() probably needs some refactoring but that would require a larger code audit. idle scheduling seems like a good compromise. Signed-off-by: Anthony Liguori <aliguori@us.ibm.com> git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@5572 c046a42c-6fe2-441c-8c8c-71466251a162
2008-10-25Replace uses of strndup (a GNU extension) with Qemu pstrdupblueswir11-0/+1
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@5532 c046a42c-6fe2-441c-8c8c-71466251a162
2008-10-08Fix IO performance regression in sparcaliguori1-0/+3
Replace signalfd with signal handler/pipe. There is no way to interrupt the CPU execution loop when a file descriptor becomes readable. This results in a large performance regression in sparc emulation during bootup. This patch switches us to signal handler/pipe which was originally suggested by Ian Jackson. The signal handler lets us interrupt the CPU emulation loop while the write to a pipe lets us avoid the select/signal race condition. Signed-off-by: Anthony Liguori <aliguori@us.ibm.com> git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@5451 c046a42c-6fe2-441c-8c8c-71466251a162
2008-09-28Add a "null" bluetooth HCI and a header file for bluetooth.balrog1-0/+1
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@5342 c046a42c-6fe2-441c-8c8c-71466251a162
2008-08-06Add qemu_realloc(), by Gerd Hoffmann.ths1-0/+1
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@4986 c046a42c-6fe2-441c-8c8c-71466251a162
2008-07-01Implement resolution switching in common console code.pbrook1-0/+1
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@4812 c046a42c-6fe2-441c-8c8c-71466251a162
2008-06-30Move CPU save/load registration to common code.pbrook1-0/+4
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@4808 c046a42c-6fe2-441c-8c8c-71466251a162
2008-04-11Remove osdep.c/qemu-img code duplicationaurel321-0/+8
(Kevin Wolf) git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@4191 c046a42c-6fe2-441c-8c8c-71466251a162
2008-02-17Unify RTCs that use host time, fix M48t59 alarm.balrog1-0/+3
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@3984 c046a42c-6fe2-441c-8c8c-71466251a162
2007-12-17Use WIN32_LEAN_AND_MEAN, by Stefan Weil.ths1-0/+1
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@3832 c046a42c-6fe2-441c-8c8c-71466251a162
2007-11-19Avoid duplicated definitions: move common definitions from exec-all.hj_mayer1-31/+0
and qemu-common.h to osdep.h. Include this header in translate-op.c. Make sure it's included first in darwin-user/qemu.h. To avoid discarded inlining bug, define inline as always_inline and always_inline as (( attribute (always_inline) )) __inline__. git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@3698 c046a42c-6fe2-441c-8c8c-71466251a162
2007-11-17Break up vl.h.pbrook1-0/+71
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@3674 c046a42c-6fe2-441c-8c8c-71466251a162
2007-11-11Split block API from vl.h.pbrook1-0/+83
Remove QEMU_TOOL. Replace with QEMU_IMG and NEED_CPU_H. Avoid linking qemu-img against whole system emulatior. git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@3578 c046a42c-6fe2-441c-8c8c-71466251a162
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