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
Reset a PC and tell BIOS that resume from ram is required on the next boot.
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@6080 c046a42c-6fe2-441c-8c8c-71466251a162
Use the defines added by the previous patch in the virtio drivers.
Also remove the pointless vendor and device args from the
virtio_blk_init() function.
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@5987 c046a42c-6fe2-441c-8c8c-71466251a162
This adds a VirtIO based balloon driver. It uses madvise() to actually balloon
the memory when possible.
Until 2.6.27, KVM forced memory pinning so we must disable ballooning unless the
kernel actually supports it when using KVM. It's always safe when using TCG.
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@5874 c046a42c-6fe2-441c-8c8c-71466251a162
Virtio-blk is a paravirtual block device based on VirtIO. It can be used by
specifying the if=virtio parameter to the -drive parameter.
When using -enable-kvm, it can achieve very good performance compared to IDE or
SCSI.
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@5870 c046a42c-6fe2-441c-8c8c-71466251a162
Generate an option rom instead of using a hijacked boot sector for kernel
booting. This just requires adding a small option ROM header and a few more
instructions to the boot sector to take over the int19 vector and run our
boot code.
A disk is no longer needed when using -kernel on x86.
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@5650 c046a42c-6fe2-441c-8c8c-71466251a162
Since revision 5228, we don't register the memory hole (0xa00000 to
0xfffff) anymore. As a consequence, we don't need to register it again
as unassigned.
Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@5522 c046a42c-6fe2-441c-8c8c-71466251a162
Introduce a max_cpus per-machine variable, allowing individual boards
to limit it's number of CPUs. Check requested number of CPUs in setup
code and exit if it exceeds the supported number for the machine.
This also renders the static MAX_CPUS check obsolete, so remove this
from vl.c.
Signed-off-by: Jes Sorensen <jes@sgi.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@5443 c046a42c-6fe2-441c-8c8c-71466251a162
handle different areas in different ways. This schema works with qemu
too, so it appears to be the common ground.
This patch proposes using this common ground for everyone, by spliting
raw qemu.
Signed-off-by: Glauber Costa <glommer@redhat.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@5228 c046a42c-6fe2-441c-8c8c-71466251a162
[ Taking latest isapc changes into account. ]
Ensure that PIC-delivered IRQs are properly de-asserted in case the APIC
is in EXTINT or FIXED mode (with level-triggering selected) on LINT0.
Fixes EFI-BIOS boot issues.
This patch also cleans up a bit the interface between PIC and APIC,
making apic_local_deliver private again.
Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com>
Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@5041 c046a42c-6fe2-441c-8c8c-71466251a162
[ Taking latest isapc changes into account. ]
In case the PIC IRQ gets de-asserted on an isapc machine, we also have
to reset CPU_INTERRUPT_HARD. This is what older qemu (before the
routing-through-APIC changes) used to do as well.
Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com>
Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@5040 c046a42c-6fe2-441c-8c8c-71466251a162
Fix a typo in my previous comming (spotted by Laurent Desnouges).
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@4877 c046a42c-6fe2-441c-8c8c-71466251a162
Previously, the BIOS would probe the CPUs for SMP guests. This tends to be
very unreliably because of startup timing issues. By passing the number of
CPUs in the CMOS, the BIOS can detect the number of CPUs much more reliably.
(Anthony Liguori)
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@4114 c046a42c-6fe2-441c-8c8c-71466251a162
and avoiding per-target hardcoded limitations.
The machine implementations can then check if the given devices match the
actual hardware implementation and firmware API.
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@3577 c046a42c-6fe2-441c-8c8c-71466251a162
