Carsten Otte wrote: > Zhang, Xiantao wrote: >> +void kvm_arch_vcpu_free(struct kvm_vcpu *vcpu); >> +void kvm_arch_vcpu_decache(struct kvm_vcpu *vcpu); >> +void kvm_arch_vcpu_load(struct kvm_vcpu *vcpu, int cpu); >> +void kvm_arch_vcpu_put(struct kvm_vcpu *vcpu); >> +struct kvm_vcpu *kvm_arch_vcpu_create(struct kvm *kvm, unsigned int >> id); + >> +int kvm_arch_vcpu_reset(struct kvm_vcpu *vcpu); >> +void kvm_arch_hardware_enable(void *garbage); >> +void kvm_arch_hardware_disable(void *garbage); >> +int kvm_arch_hardware_setup(void); >> +void kvm_arch_hardware_unsetup(void); >> +void kvm_arch_check_processor_compat(void *rtn); > I don't like the generic introduction of all x86_ops wrappers into the > arch callbacks. I would rather prefer to work out a different split > between common and arch specifics - at least in the following cases: > - unloading the mmu needs to be moved out of kvm_free_vcpus into the > arch part, because we don't have a shaddow mmu on s390
I think we have an old thread related to mmu code in kvm_main.c. In IA64, we haven't shadow mmu as well, but we still need mmu interfaces, such as mmu load, reload, unload to notify arch-specific VMM module about the memory changes. > - decache_vcpus_on_cpu should be arch-dependent alltogether, rather > than having a per cpu callback. We've got nothing to decache, so the > entire thing is a nop for us. Actually, IA64 doesn't require it. As you said, decache_vcpus_on_cpu is only needed by x86. > - vcpu_reset works very different for our architecture, we'd need an > initial processor status word. I'd prefer to keep the existence of > this callback arch dependent. Yes, I think kvm_arch_vcpu_reset in this patch should meet your requirement. > - hardware enable/disable/setup/unsetup/check_processor_compat does > not make any sense for us: all CPUs that have been sold since the > 1970s have proper hardware virtualization, and there's nothing to > enable - it just works. OK, Maybe we can move them to arch-specific. Avi, How about your ideas? Thanks Xiantao ------------------------------------------------------------------------- This SF.net email is sponsored by: Splunk Inc. Still grepping through log files to find problems? Stop. Now Search log events and configuration files using AJAX and a browser. Download your FREE copy of Splunk now >> http://get.splunk.com/ _______________________________________________ kvm-devel mailing list kvm-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/kvm-devel
