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Commit e45efa28 authored by Thomas Huth's avatar Thomas Huth Committed by Christian Borntraeger
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KVM: s390: Add low-address protection to TEST BLOCK 



TEST BLOCK is also subject to the low-address protection, so we need
to check the destination address in our handler.

Signed-off-by: default avatarThomas Huth <thuth@linux.vnet.ibm.com>
Reviewed-by: default avatarCornelia Huck <cornelia.huck@de.ibm.com>
Signed-off-by: default avatarChristian Borntraeger <borntraeger@de.ibm.com>
parent fb34c603

arch/s390/kvm/priv.c

+3 −0
Original line number Original line Diff line number Diff line
@@ -206,6 +206,9 @@ static int handle_test_block(struct kvm_vcpu *vcpu) 




	kvm_s390_get_regs_rre(vcpu, NULL, &reg2);

	kvm_s390_get_regs_rre(vcpu, NULL, &reg2);

	addr = vcpu->run->s.regs.gprs[reg2] & PAGE_MASK;

	addr = vcpu->run->s.regs.gprs[reg2] & PAGE_MASK;

	addr = kvm_s390_logical_to_effective(vcpu, addr);

	if (kvm_s390_check_low_addr_protection(vcpu, addr))

		return kvm_s390_inject_prog_irq(vcpu, &vcpu->arch.pgm);

	addr = kvm_s390_real_to_abs(vcpu, addr);

	addr = kvm_s390_real_to_abs(vcpu, addr);





	if (kvm_is_error_gpa(vcpu->kvm, addr))

	if (kvm_is_error_gpa(vcpu->kvm, addr))