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From: Christian Borntraeger <borntraeger@de.ibm.com>
To: Paolo Bonzini <pbonzini@redhat.com>,
	linux-kernel@vger.kernel.org, kvm@vger.kernel.org
Cc: mkubecek@suse.cz
Subject: Re: [PATCH] kvm: fix compilation on s390
Date: Fri, 24 May 2019 21:54:18 +0200	[thread overview]
Message-ID: <d34269ea-054f-4dee-4485-3121cb3255c1@de.ibm.com> (raw)
In-Reply-To: <1558725957-22998-1-git-send-email-pbonzini@redhat.com>

On which kernel tree is this broken? kvm/queue has 

#ifdef CONFIG_ZONE_DEVICE
around that.

On 24.05.19 21:25, Paolo Bonzini wrote:
> s390 does not have memremap, even though in this particular case it
> would be useful.
> 
> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
> ---
>  virt/kvm/kvm_main.c | 2 ++
>  1 file changed, 2 insertions(+)
> 
> diff --git a/virt/kvm/kvm_main.c b/virt/kvm/kvm_main.c
> index 1fadfb9cf36e..134ec0283a8a 100644
> --- a/virt/kvm/kvm_main.c
> +++ b/virt/kvm/kvm_main.c
> @@ -1761,8 +1761,10 @@ static int __kvm_map_gfn(struct kvm_memory_slot *slot, gfn_t gfn,
>  	if (pfn_valid(pfn)) {
>  		page = pfn_to_page(pfn);
>  		hva = kmap(page);
> +#ifdef CONFIG_HAS_IOMEM
>  	} else {
>  		hva = memremap(pfn_to_hpa(pfn), PAGE_SIZE, MEMREMAP_WB);
> +#endif
>  	}
> 
>  	if (!hva)
> 


  reply	other threads:[~2019-05-24 19:54 UTC|newest]

Thread overview: 5+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-05-24 19:25 Paolo Bonzini
2019-05-24 19:54 ` Christian Borntraeger [this message]
2019-05-24 19:56   ` Paolo Bonzini
2019-05-24 20:24 ` Michal Kubecek
2019-05-24 20:45   ` Paolo Bonzini

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