[S390] disable MACHINE_IS_VM check for pfault (f32269a0) · Commits · 戴 / test

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:

Carsten Otte <cotte@de.ibm.com> Signed-off-by:

Martin Schwidefsky <schwidefsky@de.ibm.com>

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;

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