Jan Kiszka wrote:
struct kvm_pit_state {
struct kvm_pit_channel_state channels[3];
+ u8 hpet_legacy_mode;
};
This changes the ABI, breaking older binaries running on newer kernels,
or newer binaries running on older kernels.
As we have KVM_CREATE_PIT2 now, which includes struct kvm_pit_config
with a lot of unused flags, it should be straightforward to negotiate
the kvm_pit_state format between kernel and user space: kernel
advertises support for the new one via capability, user space requests
it via a bit in kvm_pit_state.flags.
We still need a new ioctl. The structure size is embedded in the ioctl
number, so any additions automatically cause version mismatches.
I sent patches some time ago to have the kernel automatically adjust for
this, but they weren't well received.
--
error compiling committee.c: too many arguments to function
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