KVM: s390: write external damage code on machine checks

David Hildenbrand · borntraeger · commit 8953fb08abf8 · 2016-09-08T09:07:52.000+02:00
Let's also write the external damage code already provided by
struct kvm_s390_mchk_info.

Reviewed-by: Cornelia Huck &lt;cornelia.huck@de.ibm.com&gt;
Signed-off-by: David Hildenbrand &lt;dahi@linux.vnet.ibm.com&gt;
Signed-off-by: Christian Borntraeger &lt;borntraeger@de.ibm.com&gt;
diff --git a/arch/s390/kernel/asm-offsets.c b/arch/s390/kernel/asm-offsets.c
@@ -125,6 +125,7 @@ int main(void)
 	OFFSET(__LC_STFL_FAC_LIST, lowcore, stfl_fac_list);
 	OFFSET(__LC_STFLE_FAC_LIST, lowcore, stfle_fac_list);
 	OFFSET(__LC_MCCK_CODE, lowcore, mcck_interruption_code);
+	OFFSET(__LC_EXT_DAMAGE_CODE, lowcore, external_damage_code);
 	OFFSET(__LC_MCCK_FAIL_STOR_ADDR, lowcore, failing_storage_address);
 	OFFSET(__LC_LAST_BREAK, lowcore, breaking_event_addr);
 	OFFSET(__LC_RST_OLD_PSW, lowcore, restart_old_psw);
diff --git a/arch/s390/kvm/interrupt.c b/arch/s390/kvm/interrupt.c
@@ -460,6 +460,8 @@ static int __write_machine_check(struct kvm_vcpu *vcpu,
 			     &vcpu->arch.sie_block->gcr, 128);
 
 	/* Extended interruption information */
+	rc |= put_guest_lc(vcpu, mchk->ext_damage_code,
+			   (u32 __user *) __LC_EXT_DAMAGE_CODE);
 	rc |= put_guest_lc(vcpu, mchk->failing_storage_address,
 			   (u64 __user *) __LC_MCCK_FAIL_STOR_ADDR);
 	rc |= write_guest_lc(vcpu, __LC_PSW_SAVE_AREA, &mchk->fixed_logout,
