在 2023年02月21日 01:53, Paolo Bonzini 写道:
On 2/20/23 07:57, Tianrui Zhao wrote:
+ vcpu->arch.guest_eentry = (unsigned long)kvm_context->kvm_eentry;
+ vcpu->arch.vcpu_run = kvm_context->kvm_enter_guest;
+ vcpu->arch.handle_exit = _kvm_handle_exit;
Here as well, whatever is constant must not be stored in struct
kvm_arch_vcpu.
Paolo
Thanks, we use this in vcpu_arch because the vcpu_arch is used as
argument in switch.S' methods, we can quickly access the guest_eentry
and handle_exit by using the KVM_ARCH_GEENTRY, KVM_ARCH_HANDLE_EXIT
offsets. If we change to global variable , we should relocate it in
switch.S and may lead to lower accessing speed.
