Merge remote-tracking branch 'lsk/v3.10/topic/arm64-insn' into linux-linaro-lsk

[firefly-linux-kernel-4.4.55.git] / arch / powerpc / kernel / signal_64.c

diff --git a/arch/powerpc/kernel/signal_64.c b/arch/powerpc/kernel/signal_64.c
index 887e99d85bc270eefeb949d30dcf4d45fd3d3647..74d9615a6bb6d1d9053d15ac59a1dba1537459f7 100644 (file)
--- a/arch/powerpc/kernel/signal_64.c
+++ b/arch/powerpc/kernel/signal_64.c
@@ -121,6 +121,12 @@ static long setup_sigcontext(struct sigcontext __user *sc, struct pt_regs *regs,
        flush_fp_to_thread(current);
        /* copy fpr regs and fpscr */
        err |= copy_fpr_to_user(&sc->fp_regs, current);
+
+       /*
+        * Clear the MSR VSX bit to indicate there is no valid state attached
+        * to this context, except in the specific case below where we set it.
+        */
+       msr &= ~MSR_VSX;
 #ifdef CONFIG_VSX
        /*
         * Copy VSX low doubleword to local buffer for formatting,
@@ -507,6 +513,8 @@ static long restore_tm_sigcontexts(struct pt_regs *regs,
        }
 #endif
        tm_enable();
+       /* Make sure the transaction is marked as failed */
+       current->thread.tm_texasr |= TEXASR_FS;
        /* This loads the checkpointed FP/VEC state, if used */
        tm_recheckpoint(&current->thread, msr);