[TRUSTY ARM/ARM64] [PULL] UBUNTU: support reboot and poweroff for VM

[Luis Henriques]

On Fri, May 15, 2015 at 05:26:49PM +0800, Ming Lei wrote:
> Hi,
> 
> The current trusty kernel can't support 'reboot' and 'poweroff' for
> arm64 and arm VM because of missing KVM PSCI v0.2 feature.
> 

This patchset is breaking the build of arm64.  I'm seeing the
following error:

/tmp/kernel-henrix-IHjGGJNY/build/arch/arm64/kvm/../../../arch/arm/kvm/psci.c: In function 'psci_affinity_mask':
/tmp/kernel-henrix-IHjGGJNY/build/arch/arm64/kvm/../../../arch/arm/kvm/psci.c:30:53: error: 'MPIDR_LEVEL_BITS' undeclared (first use in this function)
 #define AFFINITY_MASK(level) ~((0x1UL << ((level) * MPIDR_LEVEL_BITS)) - 1)
                                                     ^
/tmp/kernel-henrix-IHjGGJNY/build/arch/arm64/kvm/../../../arch/arm/kvm/psci.c:35:31: note: in expansion of macro 'AFFINITY_MASK'
   return MPIDR_HWID_BITMASK & AFFINITY_MASK(affinity_level);
                               ^
/tmp/kernel-henrix-IHjGGJNY/build/arch/arm64/kvm/../../../arch/arm/kvm/psci.c:30:53: note: each undeclared identifier is reported only once for each function it appears in
 #define AFFINITY_MASK(level) ~((0x1UL << ((level) * MPIDR_LEVEL_BITS)) - 1)
                                                     ^
/tmp/kernel-henrix-IHjGGJNY/build/arch/arm64/kvm/../../../arch/arm/kvm/psci.c:35:31: note: in expansion of macro 'AFFINITY_MASK'
   return MPIDR_HWID_BITMASK & AFFINITY_MASK(affinity_level);
                               ^
  CC      lib/lockref.o
make[3]: *** [arch/arm64/kvm/../../../arch/arm/kvm/psci.o] Error 1

Looks like there's an #include missing somewhere, as MPIDR_LEVEL_BITS
is defined in arch/arm/include/asm/cputype.h

Cheers,
--
Luís