Simon Guo 8d2e2fc5e0 KVM: PPC: Book3S PR: Add transaction memory save/restore skeleton ... The transaction memory checkpoint area save/restore behavior is triggered when VCPU qemu process is switching out/into CPU, i.e. at kvmppc_core_vcpu_put_pr() and kvmppc_core_vcpu_load_pr(). MSR TM active state is determined by TS bits: active: 10(transactional) or 01 (suspended) inactive: 00 (non-transactional) We don't "fake" TM functionality for guest. We "sync" guest virtual MSR TM active state(10 or 01) with shadow MSR. That is to say, we don't emulate a transactional guest with a TM inactive MSR. TM SPR support(TFIAR/TFAR/TEXASR) has already been supported by commit 9916d57e64 ("KVM: PPC: Book3S PR: Expose TM registers"). Math register support (FPR/VMX/VSX) will be done at subsequent patch. Whether TM context need to be saved/restored can be determined by kvmppc_get_msr() TM active state: * TM active - save/restore TM context * TM inactive - no need to do so and only save/restore TM SPRs. Signed-off-by: Simon Guo <wei.guo.simon@gmail.com> Suggested-by: Paul Mackerras <paulus@ozlabs.org> Signed-off-by: Paul Mackerras <paulus@ozlabs.org>		2018-06-01 10:29:55 +10:00
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asm	KVM: PPC: Book3S PR: Add transaction memory save/restore skeleton	2018-06-01 10:29:55 +10:00
uapi/asm	KVM: PPC: Book3S HV: Add 'online' register to ONE_REG interface	2018-05-17 16:36:36 +10:00