From 60a0c68df2632feaa4a986af084650d1165d89c5 Mon Sep 17 00:00:00 2001 From: Michael Holzheu Date: Sun, 30 Oct 2011 15:16:40 +0100 Subject: [S390] kdump backend code This patch provides the architecture specific part of the s390 kdump support. Signed-off-by: Michael Holzheu Signed-off-by: Martin Schwidefsky --- arch/s390/kernel/base.S | 6 ++++++ 1 file changed, 6 insertions(+) (limited to 'arch/s390/kernel/base.S') diff --git a/arch/s390/kernel/base.S b/arch/s390/kernel/base.S index 255435663bf8..f8828d38fa6e 100644 --- a/arch/s390/kernel/base.S +++ b/arch/s390/kernel/base.S @@ -86,6 +86,8 @@ s390_base_pgm_handler_fn: ENTRY(diag308_reset) larl %r4,.Lctlregs # Save control registers stctg %c0,%c15,0(%r4) + larl %r4,.Lfpctl # Floating point control register + stfpc 0(%r4) larl %r4,.Lrestart_psw # Setup restart PSW at absolute 0 lghi %r3,0 lg %r4,0(%r4) # Save PSW @@ -99,6 +101,8 @@ ENTRY(diag308_reset) sam64 # Switch to 64 bit addressing mode larl %r4,.Lctlregs # Restore control registers lctlg %c0,%c15,0(%r4) + larl %r4,.Lfpctl # Restore floating point ctl register + lfpc 0(%r4) br %r14 .align 16 .Lrestart_psw: @@ -110,6 +114,8 @@ ENTRY(diag308_reset) .rept 16 .quad 0 .endr +.Lfpctl: + .long 0 .previous #else /* CONFIG_64BIT */ -- cgit v1.2.3