Message ID | 1405574985-21097-1-git-send-email-mpe@ellerman.id.au (mailing list archive) |
---|---|
State | Accepted |
Headers | show |
diff --git a/arch/powerpc/kernel/setup_64.c b/arch/powerpc/kernel/setup_64.c index ee082d771178..d600b3fe5f5c 100644 --- a/arch/powerpc/kernel/setup_64.c +++ b/arch/powerpc/kernel/setup_64.c @@ -201,7 +201,11 @@ static void cpu_ready_for_interrupts(void) /* Set IR and DR in PACA MSR */ get_paca()->kernel_msr = MSR_KERNEL; - /* Enable AIL if supported */ + /* + * Enable AIL if supported, and we are in hypervisor mode. If we are + * not in hypervisor mode, we enable relocation-on interrupts later + * in pSeries_setup_arch() using the H_SET_MODE hcall. + */ if (cpu_has_feature(CPU_FTR_HVMODE) && cpu_has_feature(CPU_FTR_ARCH_207S)) { unsigned long lpcr = mfspr(SPRN_LPCR);
I spent ten minutes scratching my head, trying to work out where we enabled relocation on interrupts for guest kernels. Expand the doco to make it clear. Signed-off-by: Michael Ellerman <mpe@ellerman.id.au> --- arch/powerpc/kernel/setup_64.c | 6 +++++- 1 file changed, 5 insertions(+), 1 deletion(-)