KVM: PPC: Book3S HV: Add transactional memory support

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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>

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Michael Neuling 2014-03-25 10:47:02 +11:00 • committed by Paul Mackerras

parent 7505258c5f

commit e4e3812150

4 changed files with 149 additions and 30 deletions

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1

arch/powerpc/include/asm/reg.h

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4

arch/powerpc/include/asm/tm.h

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9

arch/powerpc/kvm/book3s_64_mmu_hv.c

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165

arch/powerpc/kvm/book3s_hv_rmhandlers.S

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