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| author | Alexey Kardashevskiy <aik@ozlabs.ru> | 2013-12-23 13:42:22 +1100 |
|---|---|---|
| committer | Alexander Graf <agraf@suse.de> | 2014-03-05 03:06:27 +0100 |
| commit | 4e38181979ec4bc80c75f0c181f9df2d4e933c13 (patch) | |
| tree | 491983494d31c609dfc6b9ce79cddb3996a058b1 /target-ppc/fpu_helper.c | |
| parent | 3052f0d59426a1f8120ffbf66fd438973bfd2912 (diff) | |
target-ppc: disable unsupported modes for SPR_CTRL/SPR_UCTRL
The Figure 17 "SPR encodings" of the PowerISA 2.07 describes CTRL SPR as:
priviledged
# spr5-9 spr0-4 name mtspr mfspr len cat
136 00100 01000 CTRL - no 32 S
152 00100 11000 CTRL yes - 32 S
According to this chart, the hypervisor's CTRL (#152) does not support
reading, the user-space's CTRL (UCTRL, #136) does not support writing.
This replaces unsupported operations with the default SPR_NOACCESS hook.
Signed-off-by: Alexey Kardashevskiy <aik@ozlabs.ru>
Signed-off-by: Alexander Graf <agraf@suse.de>
Diffstat (limited to 'target-ppc/fpu_helper.c')
0 files changed, 0 insertions, 0 deletions