From: Thomas Huth <thuth@xxxxxxxxxxxxxxxxxx> The handler for MVPG partial execution interception does not take the current CPU addressing mode into account yet, so addresses are always treated as 64-bit addresses. For correct behaviour, we should properly handle 24-bit and 31-bit addresses, too. Since MVPG is defined to work with logical addresses, we can simply use guest_translate_address() to achieve the required behaviour (since DAT is disabled here, guest_translate_address() skips the MMU translation and only translates the address via kvm_s390_logical_to_effective() and kvm_s390_real_to_abs(), which is exactly what we want here). Signed-off-by: Thomas Huth <thuth@xxxxxxxxxxxxxxxxxx> Acked-by: Cornelia Huck <cornelia.huck@xxxxxxxxxx> Signed-off-by: Christian Borntraeger <borntraeger@xxxxxxxxxx> --- arch/s390/kvm/intercept.c | 14 ++++++++------ 1 file changed, 8 insertions(+), 6 deletions(-) diff --git a/arch/s390/kvm/intercept.c b/arch/s390/kvm/intercept.c index 7c868a9..bebd215 100644 --- a/arch/s390/kvm/intercept.c +++ b/arch/s390/kvm/intercept.c @@ -318,17 +318,19 @@ static int handle_mvpg_pei(struct kvm_vcpu *vcpu) kvm_s390_get_regs_rre(vcpu, ®1, ®2); /* Make sure that the source is paged-in */ - srcaddr = kvm_s390_real_to_abs(vcpu, vcpu->run->s.regs.gprs[reg2]); - if (kvm_is_error_gpa(vcpu->kvm, srcaddr)) - return kvm_s390_inject_program_int(vcpu, PGM_ADDRESSING); + rc = guest_translate_address(vcpu, vcpu->run->s.regs.gprs[reg2], + &srcaddr, 0); + if (rc) + return kvm_s390_inject_prog_cond(vcpu, rc); rc = kvm_arch_fault_in_page(vcpu, srcaddr, 0); if (rc != 0) return rc; /* Make sure that the destination is paged-in */ - dstaddr = kvm_s390_real_to_abs(vcpu, vcpu->run->s.regs.gprs[reg1]); - if (kvm_is_error_gpa(vcpu->kvm, dstaddr)) - return kvm_s390_inject_program_int(vcpu, PGM_ADDRESSING); + rc = guest_translate_address(vcpu, vcpu->run->s.regs.gprs[reg1], + &dstaddr, 1); + if (rc) + return kvm_s390_inject_prog_cond(vcpu, rc); rc = kvm_arch_fault_in_page(vcpu, dstaddr, 1); if (rc != 0) return rc; -- 1.9.3 -- To unsubscribe from this list: send the line "unsubscribe kvm" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
