[S390] kdump backend code

[deliverable/linux.git] / arch / s390 / kernel / base.S

diff --git a/arch/s390/kernel/base.S b/arch/s390/kernel/base.S
index 255435663bf820299734afdce573fa52050e9d87..f8828d38fa6ec62d3ccd82f46c5228a21e519955 100644 (file)
--- 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 */