On 09/12/2016 16:26, Paolo Bonzini wrote:
> Let's prepare the API for nested SVM too. Please rename it to
> KVM_CAP/GET/SET_NESTED_STATE and let's organize it like this:
>
> /* In addition to guest mode and run pending, please
> * add one for GIF.
> */
> __u16 flags;
> /* 0 for VMX, 1 for SVM. */
> __u16 format;
> /* 128 for SVM, 128 + VMCS size for VMX. */
> __u32 size;
> /* Both structs padded to 120 bytes. */
> union {
> /* VMXON, VMCS */
> struct kvm_vmx_state vmx;
> /* HSAVE_PA, VMCB */
> struct kvm_svm_state svm;
> }
> __u8 data[0];
Thinking again about this, do we really need to store the VMCS in the
ioctl? What would be the issues if we just flushed it to memory and
reloaded it at KVM_REQ_GET_VMCS12_PAGES time?
Paolo
