As tboot currently does not support the reduced hardware sleep
interface, fail this extended call.
Signed-off-by: Jan Beulich <jbeul...@suse.com>
Signed-off-by: Ben Guthro <benjamin.gut...@citrix.com>
Cc: tboot-devel@lists.sourceforge.net
Cc: Gang Wei <gang....@intel.com>
Reviewed-by: Konrad Rzeszutek Wilk <konrad.w...@oracle.com>
---
arch/x86/kernel/tboot.c | 6 ++++++
1 file changed, 6 insertions(+)
diff --git a/arch/x86/kernel/tboot.c b/arch/x86/kernel/tboot.c
index d578c9c..76c284f 100644
--- a/arch/x86/kernel/tboot.c
+++ b/arch/x86/kernel/tboot.c
@@ -285,6 +285,12 @@ static int tboot_sleep(u8 sleep_state, u32 pm1a_control,
u32 pm1b_control,
if (!tboot_enabled())
return 0;
+ if (extended)
+ if (WARN(extended,"tboot is not able to suspend on platforms with"
+ " reduced hardware sleep (ACPIv5). Please contact"
+ " tboot-devel@lists.sourceforge.net mailing list."))
+ 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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