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Commit f32269a0 authored by Carsten Otte's avatar Carsten Otte Committed by Martin Schwidefsky
Browse files

[S390] disable MACHINE_IS_VM check for pfault 



This patch disables the check for MACHINE_IS_VM when initializing the
pfault infrastructure. The code checks for successful completion of
diag 258 anyway, thus it's safe to try initialization on LPAR anyway.
This is needed to use pfault on kvm

Signed-off-by: default avatarCarsten Otte <cotte@de.ibm.com>
Signed-off-by: default avatarMartin Schwidefsky <schwidefsky@de.ibm.com>
parent 400d8291

arch/s390/mm/fault.c

+2 −4
Original line number Diff line number Diff line
@@ -509,7 +509,7 @@ int pfault_init(void) 
		.reserved = __PF_RES_FIELD };

        int rc;



	if (!MACHINE_IS_VM || pfault_disable)

	if (pfault_disable)

		return -1;

	asm volatile(

		"	diag	%1,%0,0x258\n"
@@ -530,7 +530,7 @@ void pfault_fini(void) 
		.refversn = 2,

	};



	if (!MACHINE_IS_VM || pfault_disable)

	if (pfault_disable)

		return;

	asm volatile(

		"	diag	%0,0,0x258\n"
@@ -643,8 +643,6 @@ static int __init pfault_irq_init(void) 
{

	int rc;



	if (!MACHINE_IS_VM)

		return 0;

	rc = register_external_interrupt(0x2603, pfault_interrupt);

	if (rc)

		goto out_extint;