On Mon, Jul 26, 2010 at 11:41:50AM +0530, Srivatsa Vaddagiri wrote:
> This patch-series implements paravirt-spinlock implementation for KVM guests,
> based heavily on Xen's implementation. I tried to refactor Xen's spinlock
> implementation to make it common for both Xen and KVM - but found that
> few differences between Xen and KVM (Xen has the ability to block on a
> particular event/irq for example) _and_ the fact that the guest kernel
> can be compiled to support both Xen and KVM hypervisors (CONFIG_XEN and
> CONFIG_KVM_GUEST can both be turned on) makes the "common" code a eye-sore.
> There will have to be:
>
> if (xen) {
> ...
> } else if (kvm) {
> ..
> }
>
> or possibly:
>
> alternative(NOP, some_xen_specific_call, ....)
Why not utilize the pvops path?
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