linux-kernel - Re: [PATCH] x86/kvm: make steal

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Message-ID: <bd77af4b-1e08-af7a-3167-eeb03dfbd1d6@redhat.com>
Date:   Thu, 16 Apr 2020 13:14:17 +0200
From:   Paolo Bonzini <pbonzini@...hat.com>
To:     Jason Yan <yanaijie@...wei.com>, sean.j.christopherson@...el.com,
        vkuznets@...hat.com, wanpengli@...cent.com, jmattson@...gle.com,
        joro@...tes.org, tglx@...utronix.de, mingo@...hat.com,
        bp@...en8.de, x86@...nel.org, hpa@...or.com, kvm@...r.kernel.org,
        linux-kernel@...r.kernel.org
Cc:     Hulk Robot <hulkci@...wei.com>
Subject: Re: [PATCH] x86/kvm: make steal_time static

On 16/04/20 04:15, Jason Yan wrote:
>>
> 
> Sorry that I found 14e581c381b9 ("x86/kvm: Make steal_time visible")
> said that it is used by assembler code but I didn't find where.
> Please drop this patch if it's true.
> 
> Sorry to make this trouble again.

Here:

arch/x86/kernel/kvm.c:"cmpb	$0, " __stringify(KVM_STEAL_TIME_preempted) "+steal_time(%rax);"

The __visible argument shouldn't be needed, __used should be enough.  I'll take a look.

Paolo