[PATCH] arm/arm64: KVM: Fix hyp mappings of vmalloc regions

[Christoffer Dall]

On Sat, Nov 16, 2013 at 10:01:01AM +0000, Marc Zyngier wrote:
> On 2013-11-15 23:24, Christoffer Dall wrote:
> >Using virt_to_phys on percpu mappings is horribly wrong as it may be
> >backed by vmalloc.  Introduce kvm_kaddr_to_phys which translates both
> >types of valid kernel addresses to the corresponding physical
> >address.
> >
> >At the same time resolves a typing issue where we were storing the
> >physical address as a 32 bit unsigned long (on arm), truncating the
> >physical address for addresses above the 4GB limit.  This caused
> >breakage on Keystone.
> >
> >Reported-by: Santosh Shilimkar <santosh.shilimkar at ti.com>
> >Signed-off-by: Marc Zyngier <marc.zyngier at arm.com>
> >Signed-off-by: Christoffer Dall <christoffer.dall at linaro.org>
> >---
> >
> >This patch is loosely based on Marc's previous patch from today but
> >instead of introducing another Hyp mapping function, it fixes the
> >existing one to deal with both kinds of kernel addresses.
> 
> Looks good to me! This should probably be merged quickly (after
> testing by Santosh), and possibly Cc-ed to stable.
> 
Agreed, Santhos, can you give this a quick spin?

-Christoffer