Register for the extended sleep callback from acpi. 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]> Reviewed-by: Konrad Rzeszutek Wilk <[email protected]> --- arch/x86/kernel/tboot.c | 12 ++++++++++++ 1 file changed, 12 insertions(+) diff --git a/arch/x86/kernel/tboot.c b/arch/x86/kernel/tboot.c index addf7b5..760f431 100644 --- a/arch/x86/kernel/tboot.c +++ b/arch/x86/kernel/tboot.c @@ -301,6 +301,17 @@ static int tboot_sleep(u8 sleep_state, u32 pm1a_control, u32 pm1b_control) return 0; } +static int tboot_extended_sleep(u8 sleep_state, u32 val_a, u32 val_b) +{ + if (!tboot_enabled()) + return 0; + + pr_warning("tboot is not able to suspend on platforms with" + " reduced hardware sleep (ACPIv5). Please contact" + " [email protected] mailing list."); + return -1; +} + static atomic_t ap_wfs_count; static int tboot_wait_for_aps(int num_aps) @@ -422,6 +433,7 @@ static __init int tboot_late_init(void) #endif acpi_os_set_prepare_sleep(&tboot_sleep); + acpi_os_set_prepare_extended_sleep(&tboot_extended_sleep); return 0; } -- 1.7.9.5 ------------------------------------------------------------------------------ Get your SQL database under version control now! Version control is standard for application code, but databases havent caught up. So what steps can you take to put your SQL databases under version control? Why should you start doing it? Read more to find out. http://pubads.g.doubleclick.net/gampad/clk?id=49501711&iu=/4140/ostg.clktrk _______________________________________________ tboot-devel mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/tboot-devel
