s390/tlb: Convert MACHINE_HAS_TLB_GUEST to machine_has_tlb_guest()

Use static branch(es) to implement and use machine_has_tlb_guest()
instead of a runtime check via MACHINE_HAS_TLB_GUEST.

Also add sclp_early_detect_machine_features() in order to allow for
feature detection from the decompressor.

Reviewed-by: Vasily Gorbik <gor@linux.ibm.com>
Signed-off-by: Heiko Carstens <hca@linux.ibm.com>
Signed-off-by: Vasily Gorbik <gor@linux.ibm.com>

1 files changed, 1 insertions, 0 deletions

diff --git a/arch/s390/boot/startup.c b/arch/s390/boot/startup.c
index 1c7367a338cd..4ef2622f3d30 100644
--- a/arch/s390/boot/startup.c
+++ b/arch/s390/boot/startup.c
@@ -482,6 +482,7 @@ void startup_kernel(void)
 
 	read_ipl_report();
 	sclp_early_read_info();
+	sclp_early_detect_machine_features();
 	detect_facilities();
 	cmma_init();
 	sanitize_prot_virt_host();