On 24/05/19 21:54, Christian Borntraeger wrote:
> On which kernel tree is this broken? kvm/queue has
>
> #ifdef CONFIG_ZONE_DEVICE
> around that.
It's a better version of that patch in kvm/queue, which I had committed
just to temporarily unbreak you guys.
Paolo
> 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@xxxxxxxxxx>
>> ---
>> 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)
>>
>
