From: Paolo Bonzini <pbonzini@redhat.com>
To: Xiaoyao Li <xiaoyao.li@intel.com>,
Vitaly Kuznetsov <vkuznets@redhat.com>
Cc: kvm@vger.kernel.org, linux-kernel@vger.kernel.org,
"Radim Krčmář" <rkrcmar@redhat.com>,
"Sean Christopherson" <sean.j.christopherson@intel.com>,
"Jim Mattson" <jmattson@google.com>
Subject: Re: [PATCH] KVM: X86: Make fpu allocation a common function
Date: Wed, 16 Oct 2019 09:35:51 +0200 [thread overview]
Message-ID: <245dcfe2-d167-fdec-a371-506352d3c684@redhat.com> (raw)
In-Reply-To: <6cc430c1-5729-c2d3-df11-3bf1ec1272f8@intel.com>
On 16/10/19 03:52, Xiaoyao Li wrote:
>>
>> 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?
I wanted some time to give further thought to the percpu user_fpu idea.
But kvm_load_guest_fpu and kvm_put_guest_fpu are not part of vcpu_load,
so it would not be so easy. I'll just apply your patch now.
Paolo
next prev parent reply other threads:[~2019-10-16 7:35 UTC|newest]
Thread overview: 17+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-10-14 16:22 [PATCH] KVM: X86: Make fpu allocation a common function Xiaoyao Li
2019-10-14 16:58 ` Vitaly Kuznetsov
2019-10-14 18:37 ` Sean Christopherson
2019-10-15 0:48 ` Xiaoyao Li
2019-10-15 10:53 ` Vitaly Kuznetsov
2019-10-15 14:27 ` Paolo Bonzini
2019-10-15 14:36 ` Vitaly Kuznetsov
2019-10-15 16:14 ` Sean Christopherson
2019-10-15 16:36 ` Paolo Bonzini
2019-10-15 9:28 ` Paolo Bonzini
2019-10-16 1:52 ` Xiaoyao Li
2019-10-16 7:35 ` Paolo Bonzini [this message]
2019-10-16 7:48 ` Xiaoyao Li
2019-10-16 9:41 ` Paolo Bonzini
2019-10-17 16:05 ` Sean Christopherson
2019-10-21 13:09 ` Paolo Bonzini
2019-10-22 0:57 ` Xiaoyao Li
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