Commit 0a2acd38 authored by Marc Zyngier's avatar Marc Zyngier Committed by Oliver Upton
Browse files

KVM: arm64: Simplify kvm_vcpu_get_mpidr_aff() 



By definition, MPIDR_EL1 cannot be modified by the guest. This
means it is pointless to check whether this is loaded on the CPU.

Simplify the kvm_vcpu_get_mpidr_aff() helper to directly access
the in-memory value.

Reviewed-by: default avatarJoey Gouly <joey.gouly@arm.com>
Reviewed-by: default avatarZenghui Yu <yuzenghui@huawei.com>
Tested-by: default avatarJoey Gouly <joey.gouly@arm.com>
Tested-by: default avatarShameer Kolothum <shameerali.kolothum.thodi@huawei.com>
Signed-off-by: default avatarMarc Zyngier <maz@kernel.org>
Link: https://lore.kernel.org/r/20230927090911.3355209-8-maz@kernel.org


Signed-off-by: default avatarOliver Upton <oliver.upton@linux.dev>
parent 5f4bd815

arch/arm64/include/asm/kvm_emulate.h

+1 −1
Original line number Diff line number Diff line
@@ -465,7 +465,7 @@ static inline bool kvm_is_write_fault(struct kvm_vcpu *vcpu) 


static inline unsigned long kvm_vcpu_get_mpidr_aff(struct kvm_vcpu *vcpu)

{

	return vcpu_read_sys_reg(vcpu, MPIDR_EL1) & MPIDR_HWID_BITMASK;

	return __vcpu_sys_reg(vcpu, MPIDR_EL1) & MPIDR_HWID_BITMASK;

}



static inline void kvm_vcpu_set_be(struct kvm_vcpu *vcpu)