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

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

 



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@xxxxxx>
> >Signed-off-by: Marc Zyngier <marc.zyngier@xxxxxxx>
> >Signed-off-by: Christoffer Dall <christoffer.dall@xxxxxxxxxx>
> >---
> >
> >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
--
To unsubscribe from this list: send the line "unsubscribe kvm" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at  http://vger.kernel.org/majordomo-info.html




[Index of Archives]     [KVM ARM]     [KVM ia64]     [KVM ppc]     [Virtualization Tools]     [Spice Development]     [Libvirt]     [Libvirt Users]     [Linux USB Devel]     [Linux Audio Users]     [Yosemite Questions]     [Linux Kernel]     [Linux SCSI]     [XFree86]
  Powered by Linux