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* Change RTC time drift IRQ re-injection (Gleb Natapov)aliguori2009-04-221-15/+47
| | | | | | | | | | | | | | | | | | | Currently IRQ are reinjected as soon as they are acknowledged to the RTC, but Windows sometimes do acknowledgement in a loop with global interrupt disabled waiting for interrupt to be cleared and it does not mask RTC vector in PIC/APIC while doing this. In such situation interrupt injection always fails and RTC interrupt is never cleared. Instead of reinjecting coalesced IRQs on acknowledgement the patch below reinjects them by accelerating RTC clock a bit. This way RTC interrupt is not constantly raced after coalesced interrupt. Signed-off-by: Gleb Natapov <gleb@redhat.com> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com> git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@7231 c046a42c-6fe2-441c-8c8c-71466251a162
* Fix RTC breakage from r7031.pbrook2009-04-101-1/+1
| | | | | | | Signed-off-by: Paul Brook <paul@codesourcery.com> git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@7062 c046a42c-6fe2-441c-8c8c-71466251a162
* mc146818: add square wave output supportaurel322009-04-071-10/+29
| | | | | | | | | | This is necessary for es40 as the sqw output is directly connected to the core chipset. Signed-off-by: Tristan Gingold <gingold@adacore.com> Signed-off-by: Aurelien Jarno <aurelien@aurel32.net> git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@7031 c046a42c-6fe2-441c-8c8c-71466251a162
* hw: remove error handling from qemu_malloc() callers (Avi Kivity)aliguori2009-02-051-4/+0
| | | | | | | | Signed-off-by: Avi Kivity <avi@redhat.com> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com> git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@6529 c046a42c-6fe2-441c-8c8c-71466251a162
* Support epoch of 1980 in RTC emulation for MIPS Magnumaurel322009-01-241-4/+12
| | | | | | | | | | | | | | | | On the MIPS Magnum, the time that is held in the RTC's NVRAM should be relative to midnight on 1980-01-01. This patch adds an extra parameter to rtc_init(), allowing different epochs to be used. For the Magnum, 1980 is specified, and for all other machines, 2000 is specified. I've not modified the handling of the century byte, as with an epoch of 1980 and a year of 2009, one could argue that it should hold either 0, 1, 19 or 20. NT 3.50 on MIPS does not read the century byte. Signed-off-by: Stuart Brady <stuart.brady@gmail.com> Signed-off-by: Aurelien Jarno <aurelien@aurel32.net> git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@6429 c046a42c-6fe2-441c-8c8c-71466251a162
* Add -rtc-td-hack option to fix time drift with RTC on Windows (Gleb Natapov)aliguori2009-01-151-0/+57
| | | | | | | | | | | | | | | | | | | After my last patch to fix interrupt coalescing was rejected on the basis that it is too intrusive we decided to make the fix much more localized and only fix the problem for RTC time source. Unfortunately it is impossible to fix the problem entirely inside RTC code like Andrzej proposed since Windows reads RTC register C more then once on each time interrupt so it is impossible to count reliably how many interrupt windows actually handled. Proposed solution is localized to I386 target and is disabled by default. To enable it "-rtc-td-hack" flag should be used. Signed-off-by: Gleb Natapov <gleb@redhat.com> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com> git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@6320 c046a42c-6fe2-441c-8c8c-71466251a162
* Fix day of week in mc146818aurel322009-01-141-4/+5
| | | | | | | | | | | | | | According to mc146818 specification, Day of Week register (#6) is between 1 and 7, 1 representing Sunday. According C specification, tm_wday field in struct tm is between 0 and 6, 0 representing Sunday. Bit 2 of register B (#11) is named DM (data mode) and specifies if RTC stores values in BCD or in binary form. Signed-off-by: Hervé Poussineau <hpoussin@reactos.org> Signed-off-by: Aurelien Jarno <aurelien@aurel32.net> git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@6310 c046a42c-6fe2-441c-8c8c-71466251a162
* Remove trailing spaces introduced by commit 6081aurel322008-12-181-5/+5
| | | | | | Signed-off-by: Aurelien Jarno <aurelien@aurel32.net> git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@6085 c046a42c-6fe2-441c-8c8c-71466251a162
* Add HPET emulation to qemu (Beth Kon)aliguori2008-12-171-5/+24
| | | | | | | | | | | | | | This patch adds HPET emulation. It can be disabled with -disable-hpet. An hpet provides a more finely granular clocksource than otherwise available on PC. This means that latency-dependent applications (e.g. multimedia) will generally be smoother when using the HPET. Signed-off-by: Beth Kon <eak@us.ibm.com> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com> git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@6081 c046a42c-6fe2-441c-8c8c-71466251a162
* Change MMIO callbacks to use offsets, not absolute addresses.pbrook2008-12-011-8/+6
| | | | | | | Signed-off-by: Paul Brook <paul@codesourcery.com> git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@5849 c046a42c-6fe2-441c-8c8c-71466251a162
* Unify RTCs that use host time, fix M48t59 alarm.balrog2008-02-171-14/+4
| | | | git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@3984 c046a42c-6fe2-441c-8c8c-71466251a162
* qemu_put signedness fixes, by Andre Przywara.ths2007-12-161-18/+18
| | | | git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@3824 c046a42c-6fe2-441c-8c8c-71466251a162
* Add statics and missing #includes for prototypes.pbrook2007-11-181-10/+10
| | | | git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@3683 c046a42c-6fe2-441c-8c8c-71466251a162
* Break up vl.h.pbrook2007-11-171-1/+5
| | | | git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@3674 c046a42c-6fe2-441c-8c8c-71466251a162
* added -startdate optionbellard2007-11-071-4/+9
| | | | git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@3540 c046a42c-6fe2-441c-8c8c-71466251a162
* find -type f | xargs sed -i 's/[\t ]*$//g' # Yes, again. Note the star in ↵ths2007-09-171-3/+3
| | | | | | the regex. git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@3177 c046a42c-6fe2-441c-8c8c-71466251a162
* find -type f | xargs sed -i 's/[\t ]$//g' # on most filesths2007-09-161-16/+16
| | | | git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@3173 c046a42c-6fe2-441c-8c8c-71466251a162
* Fix mmapped register alignment and endianness handling.ths2007-04-171-10/+25
| | | | git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@2694 c046a42c-6fe2-441c-8c8c-71466251a162
* Memory-mapped interface for RTC, by Herve Poussineau.ths2007-04-161-0/+93
| | | | git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@2686 c046a42c-6fe2-441c-8c8c-71466251a162
* Unify IRQ handling.pbrook2007-04-071-6/+6
| | | | git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@2635 c046a42c-6fe2-441c-8c8c-71466251a162
* Move date/time init to the RTC implementation.ths2006-12-071-0/+25
| | | | git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@2229 c046a42c-6fe2-441c-8c8c-71466251a162
* more accurate emulation (do not depend on localtime() or gmtime()bellard2004-06-031-58/+102
| | | | git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@872 c046a42c-6fe2-441c-8c8c-71466251a162
* UIP update fixbellard2004-04-031-1/+7
| | | | git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@699 c046a42c-6fe2-441c-8c8c-71466251a162
* win32 port (initial patch by kazu)bellard2004-03-311-20/+0
| | | | git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@692 c046a42c-6fe2-441c-8c8c-71466251a162
* more precise RTC emulation (periodic timers + time updates)bellard2004-03-311-34/+264
| | | | git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@688 c046a42c-6fe2-441c-8c8c-71466251a162
* io port API changebellard2004-03-141-6/+6
| | | | git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@664 c046a42c-6fe2-441c-8c8c-71466251a162
* separated more devices from emulatorbellard2004-03-141-0/+203
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@656 c046a42c-6fe2-441c-8c8c-71466251a162
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