aboutsummaryrefslogtreecommitdiff
path: root/hw/i8254.c
AgeCommit message (Collapse)Author
2009-11-07v3: don't call reset functions on cpu initializationGlauber Costa
There is absolutely no need to call reset functions when initializing devices. Since we are already registering them, calling qemu_system_reset() should suffice. Actually, it is what happens when we reboot the machine, and using the same process instead of a special case semantics will even allow us to find bugs easier. Furthermore, the fact that we initialize things like the cpu quite early, leads to the need to introduce synchronization stuff like qemu_system_cond. This patch removes it entirely. All we need to do is call qemu_system_reset() only when we're already sure the system is up and running I tested it with qemu (with and without io-thread) and qemu-kvm, and it seems to be doing okay - although qemu-kvm uses a slightly different patch. [ v2: user mode still needs cpu_reset, so put it in ifdef. ] [ v3: leave qemu_system_cond for now. ] Signed-off-by: Glauber Costa <glommer@redhat.com> Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
2009-09-11Unexport ticks_per_sec variable. Create get_ticks_per_sec() functionJuan Quintela
Signed-off-by: Juan Quintela <quintela@redhat.com> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2009-08-27Port i8254 to new VMState designJuan Quintela
Signed-off-by: Juan Quintela <quintela@redhat.com> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2009-06-29Revert "Introduce reset notifier order"Jan Kiszka
This reverts commit 8217606e6edb49591b4a6fd5a0d1229cebe470a9 (and updates later added users of qemu_register_reset), we solved the problem it originally addressed less invasively. Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2009-05-22Introduce reset notifier orderJan Kiszka
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: Jan Kiszka <jan.kiszka@siemens.com> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2009-01-26Check if the i8254 timer is active before deactivating it (Alexander Graf)aliguori
The HPET emulation can disable the i8254 when the HPET is in legacy mode, thus emulating the i8254's behavior. But if it does, the i8254 doesn't have to be running, so let's check to see if the timer works and not disable it if it's not. This fixes a segmentation fault when running Mac OS X as guest os. Signed-off-by: Alexander Graf <agraf@suse.de> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com> git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@6460 c046a42c-6fe2-441c-8c8c-71466251a162
2008-12-18Remove trailing spaces introduced by commit 6081aurel32
Signed-off-by: Aurelien Jarno <aurelien@aurel32.net> git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@6085 c046a42c-6fe2-441c-8c8c-71466251a162
2008-12-17Add HPET emulation to qemu (Beth Kon)aliguori
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
2007-12-16qemu_put signedness fixes, by Andre Przywara.ths
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@3824 c046a42c-6fe2-441c-8c8c-71466251a162
2007-11-17Break up vl.h.pbrook
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@3674 c046a42c-6fe2-441c-8c8c-71466251a162
2007-09-17find -type f | xargs sed -i 's/[\t ]*$//g' # Yes, again. Note the star in ↵ths
the regex. git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@3177 c046a42c-6fe2-441c-8c8c-71466251a162
2007-09-16find -type f | xargs sed -i 's/[\t ]$//g' # on most filesths
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@3173 c046a42c-6fe2-441c-8c8c-71466251a162
2007-04-07Unify IRQ handling.pbrook
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@2635 c046a42c-6fe2-441c-8c8c-71466251a162
2006-04-24PC speaker emulation (Joachim Henke)bellard
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@1851 c046a42c-6fe2-441c-8c8c-71466251a162
2004-06-20new reset APIbellard
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@938 c046a42c-6fe2-441c-8c8c-71466251a162
2004-05-03pit fixesbellard
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@781 c046a42c-6fe2-441c-8c8c-71466251a162
2004-04-02avoid rounding problemsbellard
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@696 c046a42c-6fe2-441c-8c8c-71466251a162
2004-03-31win32 port (initial patch by kazu)bellard
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@692 c046a42c-6fe2-441c-8c8c-71466251a162
2004-03-31use new timer APIbellard
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@689 c046a42c-6fe2-441c-8c8c-71466251a162
2004-03-14io port API changebellard
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@664 c046a42c-6fe2-441c-8c8c-71466251a162
2004-03-14separated more devices from emulatorbellard
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@656 c046a42c-6fe2-441c-8c8c-71466251a162
generated by cgit v1.2.3 (git 2.26.2) at 2024-12-03 21:53:02 +0000