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| author |   Martin Schwidefsky <schwidefsky@de.ibm.com> | 2008-01-26 14:10:58 +0100 |
|---|---|---|
| committer | Martin Schwidefsky <schwidefsky@de.ibm.com> | 2008-01-26 14:11:10 +0100 |
| commit | 6f457e1a149eb39ee58d51913e8023fc27c52806 (patch) | |
| tree | d702ec38780667a3305e45df05c4f7df3730e9f6 /arch/s390/kernel/head64.S | |
| parent | [S390] sclp: convert channel path configure code to use sync interface. (diff) | |
| download | linux-dev-6f457e1a149eb39ee58d51913e8023fc27c52806.tar.xz linux-dev-6f457e1a149eb39ee58d51913e8023fc27c52806.zip | |
[S390] Fix tlb flushing with idte.
The clear-by-asce operation of the idte instruction gets an asce
(address-space-control-element) as argument to specify which TLBs
need to get flushed. The current code passes a plain pointer to
the start of the pgd without the additional bits which would make
the pointer an asce. The current machines don't mind the difference
but a future model might want to use the designation type control
bits in the asce as a filter for the TLBs to flush.
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
Diffstat (limited to 'arch/s390/kernel/head64.S')
| -rw-r--r-- | arch/s390/kernel/head64.S | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/arch/s390/kernel/head64.S b/arch/s390/kernel/head64.S index a87b1976d409..79dccd206a6e 100644 --- a/arch/s390/kernel/head64.S +++ b/arch/s390/kernel/head64.S @@ -157,7 +157,7 @@ startup_continue: .long 0xb2b10000 # store facility list tm 0xc8,0x08 # check bit for clearing-by-ASCE bno 0f-.LPG1(%r13) - lhi %r1,2094 + lhi %r1,2048 lhi %r2,0 .long 0xb98e2001 oi 7(%r12),0x80 # set IDTE flag |