x86, intel_txt: Handle ACPI_SLEEP without X86_TRAMPOLINE

On 32 bits, we can have CONFIG_ACPI_SLEEP set without implying
CONFIG_X86_TRAMPOLINE.  In that case, we simply do not need to mark
the trampoline as a MAC region.

Signed-off-by: H. Peter Anvin <hpa@zytor.com>
Cc: Shane Wang <shane.wang@intel.com>
Cc: Joseph Cihula <joseph.cihula@intel.com>

diff --git a/arch/x86/kernel/tboot.c b/arch/x86/kernel/tboot.c
index a183bef..c2e760c 100644 (file)
--- a/arch/x86/kernel/tboot.c
+++ b/arch/x86/kernel/tboot.c
@@ -189,8 +189,12 @@ static int tboot_setup_sleep(void)
 
        /* S3 resume code */
        add_mac_region(acpi_wakeup_address, WAKEUP_SIZE);
+
+#ifdef CONFIG_X86_TRAMPOLINE
        /* AP trampoline code */
        add_mac_region(virt_to_phys(trampoline_base), TRAMPOLINE_SIZE);
+#endif
+
        /* kernel code + data + bss */
        add_mac_region(virt_to_phys(_text), _end - _text);