On Fri, Jun 28, 2013 at 09:46:23AM -0400, Ben Guthro wrote:
> As tboot currently does not support the reduced hardware sleep
> interface, fail this extended call.
>
> Signed-off-by: Jan Beulich <[email protected]>
> Signed-off-by: Ben Guthro <[email protected]>
> Cc: [email protected]
> Cc: Gang Wei <[email protected]>
> ---
> arch/x86/kernel/tboot.c | 3 +++
> 1 file changed, 3 insertions(+)
>
> diff --git a/arch/x86/kernel/tboot.c b/arch/x86/kernel/tboot.c
> index d578c9c..57383b2 100644
> --- a/arch/x86/kernel/tboot.c
> +++ b/arch/x86/kernel/tboot.c
> @@ -285,6 +285,9 @@ static int tboot_sleep(u8 sleep_state, u32 pm1a_control,
> u32 pm1b_control,
> if (!tboot_enabled())
> return 0;
>
> + if (extended)
> + return -1;
I would add WARN_ON just so that the user is aware of.
Perhaps
if (WARN(extended,"tboot is not able to suspend on ACPI extended
platforms. Contact
tboot-something mailing list please."))
return -1
Otherwise
Reviewed-by: Konrad Rzeszutek Wilk <[email protected]>
> +
> tboot_copy_fadt(&acpi_gbl_FADT);
> tboot->acpi_sinfo.pm1a_cnt_val = pm1a_control;
> tboot->acpi_sinfo.pm1b_cnt_val = pm1b_control;
> --
> 1.7.9.5
>
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