Re: [PATCH] KVM: X86: Make fpu allocation a common function

From: Xiaoyao Li
Date: Tue Oct 15 2019 - 21:52:58 EST


On 10/15/2019 5:28 PM, Paolo Bonzini wrote:
On 14/10/19 18:58, Vitaly Kuznetsov wrote:
Xiaoyao Li <xiaoyao.li@xxxxxxxxx> writes:

They are duplicated codes to create vcpu.arch.{user,guest}_fpu in VMX
and SVM. Make them common functions.

No functional change intended.
Would it rather make sense to move this code to
kvm_arch_vcpu_create()/kvm_arch_vcpu_destroy() instead?


user_fpu could be made percpu too... That would save a bit of memory
for each vCPU. I'm holding on Xiaoyao's patch because a lot of the code
he's touching would go away then.

Sorry, I don't get clear your attitude.
Do you mean the generic common function is not so better that I'd better to implement the percpu solution?

Paolo