| Age | Commit message (Collapse) | Author | |
|---|---|---|---|
| 2012-06-11 | kvm: i8254: Fix conversion of in-kernel to userspace state | Jan Kiszka | |
| Due to a offset between the clock used to generate the in-kernel count_load_time (CLOCK_MONOTONIC) and the clock used for processing this in userspace (vm_clock), reading back the output of PIT channel 2 via port 0x61 was broken. One use cases that suffered from it was the CPU frequency calibration of SeaBIOS, which also affected IDE/AHCI timeouts. This fixes it by calibrating the offset between both clocks on kvm_pit_get and adjusting the kernel value before saving it in the userspace state. As the calibration only works while the vm_clock is running, we cache the in-kernel state across stopped phases. Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com> Signed-off-by: Avi Kivity <avi@redhat.com> | |||
| 2012-03-07 | kvm: x86: Add user space part for in-kernel i8254 | Jan Kiszka | |
| 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> | |||
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index : slackcoder/qemu | |
| QEMU is a generic and open source machine & userspace emulator and virtualizer | Mirror |
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