linux-kernel - Re: [PATCH 4/6] x86/kvm: Make steal

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Date:   Sun, 14 Jan 2018 19:14:42 +0100 (CET)
From:   Thomas Gleixner <tglx@...utronix.de>
To:     Andi Kleen <andi@...stfloor.org>
cc:     x86@...nel.org, linux-kernel@...r.kernel.org,
        Andi Kleen <ak@...ux.intel.com>
Subject: Re: [PATCH 4/6] x86/kvm: Make steal_time visible

On Thu, 21 Dec 2017, Andi Kleen wrote:

> From: Andi Kleen <ak@...ux.intel.com>
> 
> This per cpu variable is accessed from assembler code, so needs
> to be visible.
> 
> Signed-off-by: Andi Kleen <ak@...ux.intel.com>
> ---
>  arch/x86/kernel/kvm.c | 2 +-

KVM has maintainers ...

>  1 file changed, 1 insertion(+), 1 deletion(-)
> 
> diff --git a/arch/x86/kernel/kvm.c b/arch/x86/kernel/kvm.c
> index b40ffbf156c1..8484e3e41d36 100644
> --- a/arch/x86/kernel/kvm.c
> +++ b/arch/x86/kernel/kvm.c
> @@ -76,7 +76,7 @@ static int parse_no_kvmclock_vsyscall(char *arg)
>  early_param("no-kvmclock-vsyscall", parse_no_kvmclock_vsyscall);
>  
>  static DEFINE_PER_CPU_DECRYPTED(struct kvm_vcpu_pv_apf_data, apf_reason) __aligned(64);
> -static DEFINE_PER_CPU_DECRYPTED(struct kvm_steal_time, steal_time) __aligned(64);
> +DEFINE_PER_CPU_DECRYPTED(struct kvm_steal_time, steal_time) __aligned(64) __visible;
>  static int has_steal_clock = 0;
>  
>  /*
> -- 
> 2.15.0
> 
>