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Commit 25ddda07 authored by Simon Guo's avatar Simon Guo Committed by Paul Mackerras
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KVM: PPC: Book3S PR: Transition to Suspended state when injecting interrupt 



This patch simulates interrupt behavior per Power ISA while injecting
interrupt in PR KVM:
- When interrupt happens, transactional state should be suspended.

kvmppc_mmu_book3s_64_reset_msr() will be invoked when injecting an
interrupt. This patch performs this ISA logic in
kvmppc_mmu_book3s_64_reset_msr().

Signed-off-by: default avatarSimon Guo <wei.guo.simon@gmail.com>
Signed-off-by: default avatarPaul Mackerras <paulus@ozlabs.org>
parent caa3be92

arch/powerpc/kvm/book3s_64_mmu.c

+10 −1
Original line number Diff line number Diff line
@@ -38,7 +38,16 @@ 


static void kvmppc_mmu_book3s_64_reset_msr(struct kvm_vcpu *vcpu)

{

	kvmppc_set_msr(vcpu, vcpu->arch.intr_msr);

	unsigned long msr = vcpu->arch.intr_msr;

	unsigned long cur_msr = kvmppc_get_msr(vcpu);



	/* If transactional, change to suspend mode on IRQ delivery */

	if (MSR_TM_TRANSACTIONAL(cur_msr))

		msr |= MSR_TS_S;

	else

		msr |= cur_msr & MSR_TS_MASK;



	kvmppc_set_msr(vcpu, msr);

}



static struct kvmppc_slb *kvmppc_mmu_book3s_64_find_slbe(