linux/arch/powerpc
Mihai Caraman 95d80a294b KVM: PPC: Book3e: Add AltiVec support
Add AltiVec support in KVM for Book3e. FPU support gracefully reuse host
infrastructure so follow the same approach for AltiVec.

Book3e specification defines shared interrupt numbers for SPE and AltiVec
units. Still SPE is present in e200/e500v2 cores while AltiVec is present in
e6500 core. So we can currently decide at compile-time which of the SPE or
AltiVec units to support exclusively by using CONFIG_SPE_POSSIBLE and
CONFIG_PPC_E500MC defines. As Alexander Graf suggested, keep SPE and AltiVec
exception handlers distinct to improve code readability.

Guests have the privilege to enable AltiVec, so we always need to support
AltiVec in KVM and implicitly in host to reflect interrupts and to save/restore
the unit context. KVM will be loaded on cores with AltiVec unit only if
CONFIG_ALTIVEC is defined. Use this define to guard KVM AltiVec logic.

Signed-off-by: Mihai Caraman <mihai.caraman@freescale.com>
Signed-off-by: Alexander Graf <agraf@suse.de>
2014-09-22 10:11:32 +02:00
..
boot Merge branch 'next' of git://git.kernel.org/pub/scm/linux/kernel/git/benh/powerpc 2014-08-14 10:14:07 -06:00
configs Here are the PPC and ARM changes for KVM, which I separated because 2014-08-07 11:35:30 -07:00
crypto powerpc: Fix compile of sha1-powerpc-asm.S on 32-bit 2013-03-05 16:56:26 +11:00
include KVM: PPC: BOOKE: Add one reg interface for DBSR 2014-09-22 10:11:30 +02:00
kernel powerpc/booke: Revert SPE/AltiVec common defines for interrupt numbers 2014-09-22 10:11:31 +02:00
kvm KVM: PPC: Book3e: Add AltiVec support 2014-09-22 10:11:32 +02:00
lib powerpc: Add smp_mb()s to arch_spin_unlock_wait() 2014-08-13 15:13:27 +10:00
math-emu powerpc: Correct emulated mtfsf instruction 2014-04-07 10:33:11 +10:00
mm powerpc/thp: Add tracepoints to track hugepage invalidate 2014-08-13 18:20:42 +10:00
net net: filter: split 'struct sk_filter' into socket and bpf parts 2014-08-02 15:03:58 -07:00
oprofile powerpc: Remove oprofile RS64 support 2014-07-28 14:10:25 +10:00
perf powerpc/perf/hv-24x7: Use kmem_cache_free 2014-08-13 15:14:04 +10:00
platforms powerpc/booke: Restrict SPE exception handlers to e200/e500 cores 2014-09-22 10:11:31 +02:00
sysdev Merge remote-tracking branch 'scott/next' into next 2014-08-05 14:13:41 +10:00
xmon powerpc: Hard disable interrupts in xmon 2014-08-13 15:13:48 +10:00
Kconfig kexec: load and relocate purgatory at kernel load time 2014-08-08 15:57:32 -07:00
Kconfig.debug Patch queue for ppc - 2014-08-01 2014-08-05 09:58:11 +02:00
Makefile Merge branch 'merge' into next 2014-05-28 13:30:12 +10:00
relocs_check.pl Fix warning typo "CONFIG_RELCOATABLE" 2013-05-29 15:11:30 +02:00