KVM: PPC: e500: Save/restore SPE state
This is done lazily. The SPE save will be done only if the guest has
used SPE since the last preemption or heavyweight exit. Restore will be
done only on demand, when enabling MSR_SPE in the shadow MSR, in response
to an SPE fault or mtmsr emulation.
For SPEFSCR, Linux already switches it on context switch (non-lazily), so
the only remaining bit is to save it between qemu and the guest.
Signed-off-by: Liu Yu <yu.liu@freescale.com>
Signed-off-by: Scott Wood <scottwood@freescale.com>
Signed-off-by: Alexander Graf <agraf@suse.de>
diff --git a/arch/powerpc/include/asm/reg_booke.h b/arch/powerpc/include/asm/reg_booke.h
index 0f0ad9f..9ec0b39 100644
--- a/arch/powerpc/include/asm/reg_booke.h
+++ b/arch/powerpc/include/asm/reg_booke.h
@@ -318,6 +318,7 @@
#define ESR_ILK 0x00100000 /* Instr. Cache Locking */
#define ESR_PUO 0x00040000 /* Unimplemented Operation exception */
#define ESR_BO 0x00020000 /* Byte Ordering */
+#define ESR_SPV 0x00000080 /* Signal Processing operation */
/* Bit definitions related to the DBCR0. */
#if defined(CONFIG_40x)