diff options
| author | Jan Kiszka <jan.kiszka@siemens.com> | 2012-03-02 20:28:49 +0100 |
|---|---|---|
| committer | Avi Kivity <avi@redhat.com> | 2012-03-07 12:27:43 +0200 |
| commit | 5d17c0d2df4998598e6002b27b8e47e792899a0f (patch) | |
| tree | 0615a78c68059aa79cc2c3663d954630e097b508 /hw/i8254.h | |
| parent | 8a7c73932e03f13f29dea8622e15f1ded478d407 (diff) | |
kvm: x86: Add user space part for in-kernel i8254
This provides the required user space stubs to enable the in-kernel
i8254 emulation of KVM.
The in-kernel model supports lost tick compensation according to the
"delay" policy. This is enabled by default and can be switched off via a
device property.
Depending on the feature set of the host kernel (before 2.6.32), we may
have to disable the HPET or lack sound output from the PC speaker.
Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com>
Signed-off-by: Avi Kivity <avi@redhat.com>
Diffstat (limited to 'hw/i8254.h')
| -rw-r--r-- | hw/i8254.h | 11 |
1 files changed, 11 insertions, 0 deletions
diff --git a/hw/i8254.h b/hw/i8254.h index a1d2e9835b..ba6b598a99 100644 --- a/hw/i8254.h +++ b/hw/i8254.h @@ -51,6 +51,17 @@ static inline ISADevice *pit_init(ISABus *bus, int base, int isa_irq, return dev; } +static inline ISADevice *kvm_pit_init(ISABus *bus, int base) +{ + ISADevice *dev; + + dev = isa_create(bus, "kvm-pit"); + qdev_prop_set_uint32(&dev->qdev, "iobase", base); + qdev_init_nofail(&dev->qdev); + + return dev; +} + void pit_set_gate(ISADevice *dev, int channel, int val); void pit_get_channel_info(ISADevice *dev, int channel, PITChannelInfo *info); |