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KVM: PPC: Book3S PR: Pass through MSR TM and TS bits to shadow_msr

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PowerPC TM functionality needs MSR TM/TS bits support in hardware level.
Guest TM functionality can not be emulated with "fake" MSR (msr in magic
page) TS bits.

This patch syncs TM/TS bits in shadow_msr with the MSR value in magic
page, so that the MSR TS value which guest sees is consistent with actual
MSR bits running in guest.

Signed-off-by: Simon Guo <wei.guo.simon@gmail.com>
Signed-off-by: Paul Mackerras <paulus@ozlabs.org>
This commit is contained in:
Simon Guo 2018-05-23 15:01:52 +08:00 committed by Paul Mackerras
parent 25ddda07b6
commit 901938add3
1 changed files with 5 additions and 0 deletions
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5
arch/powerpc/kvm/book3s_pr.c
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@ -312,7 +312,12 @@ static void kvmppc_recalc_shadow_msr(struct kvm_vcpu *vcpu)
ulong smsr = guest_msr;
/* Guest MSR values */
#ifdef CONFIG_PPC_TRANSACTIONAL_MEM
smsr &= MSR_FE0 | MSR_FE1 | MSR_SF | MSR_SE | MSR_BE | MSR_LE |
MSR_TM | MSR_TS_MASK;
#else
smsr &= MSR_FE0 | MSR_FE1 | MSR_SF | MSR_SE | MSR_BE | MSR_LE;
#endif
/* Process MSR values */
smsr |= MSR_ME | MSR_RI | MSR_IR | MSR_DR | MSR_PR | MSR_EE;
/* External providers the guest reserved */