KVM: PPC: Book3S HV: Add transactional memory support
This adds saving of the transactional memory (TM) checkpointed state
on guest entry and exit. We only do this if we see that the guest has
an active transaction.
It also adds emulation of the TM state changes when delivering IRQs
into the guest. According to the architecture, if we are
transactional when an IRQ occurs, the TM state is changed to
suspended, otherwise it's left unchanged.
Signed-off-by: Michael Neuling <mikey@neuling.org>
Signed-off-by: Paul Mackerras <paulus@samba.org>
Acked-by: Scott Wood <scottwood@freescale.com>
diff --git a/arch/powerpc/include/asm/tm.h b/arch/powerpc/include/asm/tm.h
index 9dfbc34..386a3ef 100644
--- a/arch/powerpc/include/asm/tm.h
+++ b/arch/powerpc/include/asm/tm.h
@@ -7,6 +7,8 @@
#include <uapi/asm/tm.h>
+#ifndef __ASSEMBLY__
+
#ifdef CONFIG_PPC_TRANSACTIONAL_MEM
extern void do_load_up_transact_fpu(struct thread_struct *thread);
extern void do_load_up_transact_altivec(struct thread_struct *thread);
@@ -20,3 +22,5 @@
extern void tm_abort(uint8_t cause);
extern void tm_save_sprs(struct thread_struct *thread);
extern void tm_restore_sprs(struct thread_struct *thread);
+
+#endif /* __ASSEMBLY__ */