We don't need as complex code. I had some thinkos while writing it, figuring I needed to support PPC32 paths on PPC64 which would have required DR=0, but everything just runs fine with DR=1. So let's make the functions simple C call wrappers that reserve some space on the stack for the respective functions to clobber. Fixes out-of-RMA-access (and thus guest FPU loading) on the PS3. Signed-off-by: Alexander Graf <agraf@xxxxxxx> --- arch/powerpc/kvm/book3s_64_rmhandlers.S | 13 ++----------- 1 files changed, 2 insertions(+), 11 deletions(-) diff --git a/arch/powerpc/kvm/book3s_64_rmhandlers.S b/arch/powerpc/kvm/book3s_64_rmhandlers.S index c83c60a..bd08535 100644 --- a/arch/powerpc/kvm/book3s_64_rmhandlers.S +++ b/arch/powerpc/kvm/book3s_64_rmhandlers.S @@ -164,24 +164,15 @@ _GLOBAL(kvmppc_rmcall) #define define_load_up(what) \ \ _GLOBAL(kvmppc_load_up_ ## what); \ - subi r1, r1, INT_FRAME_SIZE; \ + stdu r1, -INT_FRAME_SIZE(r1); \ mflr r3; \ std r3, _LINK(r1); \ - mfmsr r4; \ - std r31, GPR3(r1); \ - mr r31, r4; \ - li r5, MSR_DR; \ - oris r5, r5, MSR_EE@h; \ - andc r4, r4, r5; \ - mtmsr r4; \ \ bl .load_up_ ## what; \ \ - mtmsr r31; \ ld r3, _LINK(r1); \ - ld r31, GPR3(r1); \ - addi r1, r1, INT_FRAME_SIZE; \ mtlr r3; \ + addi r1, r1, INT_FRAME_SIZE; \ blr define_load_up(fpu) -- 1.6.0.2 -- To unsubscribe from this list: send the line "unsubscribe kvm" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
