Messages in this thread Patch in this message | | | From | Ben Guthro <> | Subject | [PATCH v4 4/5] x86/tboot: Fail extended mode reduced hardware sleep | Date | Thu, 27 Jun 2013 11:02:02 -0400 |
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As tboot currently does not support the reduced hardware sleep interface, fail this extended call.
Signed-off-by: Jan Beulich <jbeulich@suse.com> Signed-off-by: Ben Guthro <benjamin.guthro@citrix.com> Cc: tboot-devel@lists.sourceforge.net Cc: Gang Wei <gang.wei@intel.com> --- arch/x86/kernel/tboot.c | 6 +++++- 1 file changed, 5 insertions(+), 1 deletion(-)
diff --git a/arch/x86/kernel/tboot.c b/arch/x86/kernel/tboot.c index f84fe00..57383b2 100644 --- a/arch/x86/kernel/tboot.c +++ b/arch/x86/kernel/tboot.c @@ -273,7 +273,8 @@ static void tboot_copy_fadt(const struct acpi_table_fadt *fadt) offsetof(struct acpi_table_facs, firmware_waking_vector); } -static int tboot_sleep(u8 sleep_state, u32 pm1a_control, u32 pm1b_control) +static int tboot_sleep(u8 sleep_state, u32 pm1a_control, u32 pm1b_control, + bool extended) { static u32 acpi_shutdown_map[ACPI_S_STATE_COUNT] = { /* S0,1,2: */ -1, -1, -1, @@ -284,6 +285,9 @@ static int tboot_sleep(u8 sleep_state, u32 pm1a_control, u32 pm1b_control) if (!tboot_enabled()) return 0; + if (extended) + return -1; + 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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