From 3c1a4322bba79aad2d3f6f996b7e1c336bd909b3 Mon Sep 17 00:00:00 2001 From: Nicholas Piggin Date: Tue, 23 Nov 2021 19:52:00 +1000 Subject: KVM: PPC: Book3S HV: Change dec_expires to be relative to guest timebase Change dec_expires to be relative to the guest timebase, and allow it to be moved into low level P9 guest entry functions, to improve SPR access scheduling. Signed-off-by: Nicholas Piggin Signed-off-by: Michael Ellerman Link: https://lore.kernel.org/r/20211123095231.1036501-23-npiggin@gmail.com --- arch/powerpc/include/asm/kvm_book3s.h | 6 ++++++ 1 file changed, 6 insertions(+) (limited to 'arch/powerpc/include/asm/kvm_book3s.h') diff --git a/arch/powerpc/include/asm/kvm_book3s.h b/arch/powerpc/include/asm/kvm_book3s.h index 3d31f2c59e43..91c9f937edcd 100644 --- a/arch/powerpc/include/asm/kvm_book3s.h +++ b/arch/powerpc/include/asm/kvm_book3s.h @@ -406,6 +406,12 @@ static inline ulong kvmppc_get_fault_dar(struct kvm_vcpu *vcpu) return vcpu->arch.fault_dar; } +/* Expiry time of vcpu DEC relative to host TB */ +static inline u64 kvmppc_dec_expires_host_tb(struct kvm_vcpu *vcpu) +{ + return vcpu->arch.dec_expires - vcpu->arch.vcore->tb_offset; +} + static inline bool is_kvmppc_resume_guest(int r) { return (r == RESUME_GUEST || r == RESUME_GUEST_NV); -- cgit v1.2.3