diff options
| author | Anton Blanchard <anton@samba.org> | 2013-08-06 20:01:46 +0400 |
|---|---|---|
| committer | Benjamin Herrenschmidt <benh@kernel.crashing.org> | 2013-08-14 09:33:35 +0400 |
| commit | 7ffcf8ec26f4b94b95b1297131d223b121d951e5 (patch) | |
| tree | 7b4b47eaeafe56c253350b14470fecf03b40277f /arch/powerpc/kvm | |
| parent | c72cd555e828b710bce8c3635254dbb483397142 (diff) | |
| download | linux-7ffcf8ec26f4b94b95b1297131d223b121d951e5.tar.xz | |
powerpc: Fix little endian lppaca, slb_shadow and dtl_entry
The lppaca, slb_shadow and dtl_entry hypervisor structures are
big endian, so we have to byte swap them in little endian builds.
LE KVM hosts will also need to be fixed but for now add an #error
to remind us.
Signed-off-by: Anton Blanchard <anton@samba.org>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Diffstat (limited to 'arch/powerpc/kvm')
| -rw-r--r-- | arch/powerpc/kvm/book3s_64_slb.S | 4 | ||||
| -rw-r--r-- | arch/powerpc/kvm/book3s_hv_rmhandlers.S | 4 |
2 files changed, 8 insertions, 0 deletions
diff --git a/arch/powerpc/kvm/book3s_64_slb.S b/arch/powerpc/kvm/book3s_64_slb.S index 4f0caecc0f9d..4f12e8f0c718 100644 --- a/arch/powerpc/kvm/book3s_64_slb.S +++ b/arch/powerpc/kvm/book3s_64_slb.S @@ -17,6 +17,10 @@ * Authors: Alexander Graf <agraf@suse.de> */ +#ifdef __LITTLE_ENDIAN__ +#error Need to fix SLB shadow accesses in little endian mode +#endif + #define SHADOW_SLB_ESID(num) (SLBSHADOW_SAVEAREA + (num * 0x10)) #define SHADOW_SLB_VSID(num) (SLBSHADOW_SAVEAREA + (num * 0x10) + 0x8) #define UNBOLT_SLB_ENTRY(num) \ diff --git a/arch/powerpc/kvm/book3s_hv_rmhandlers.S b/arch/powerpc/kvm/book3s_hv_rmhandlers.S index b02f91e4c70d..20e7fcdc4c95 100644 --- a/arch/powerpc/kvm/book3s_hv_rmhandlers.S +++ b/arch/powerpc/kvm/book3s_hv_rmhandlers.S @@ -29,6 +29,10 @@ #include <asm/kvm_book3s_asm.h> #include <asm/mmu-hash64.h> +#ifdef __LITTLE_ENDIAN__ +#error Need to fix lppaca and SLB shadow accesses in little endian mode +#endif + /***************************************************************************** * * * Real Mode handlers that need to be in the linear mapping * |