Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux

Pull s390 updates from Heiko Carstens:
 "Since Martin is on vacation you get the s390 pull request for the
  v4.15 merge window this time from me.

  Besides a lot of cleanups and bug fixes these are the most important
  changes:

   - a new regset for runtime instrumentation registers

   - hardware accelerated AES-GCM support for the aes_s390 module

   - support for the new CEX6S crypto cards

   - support for FORTIFY_SOURCE

   - addition of missing z13 and new z14 instructions to the in-kernel
     disassembler

   - generate opcode tables for the in-kernel disassembler out of a
     simple text file instead of having to manually maintain those
     tables

   - fast memset16, memset32 and memset64 implementations

   - removal of named saved segment support

   - hardware counter support for z14

   - queued spinlocks and queued rwlocks implementations for s390

   - use the stack_depth tracking feature for s390 BPF JIT

   - a new s390_sthyi system call which emulates the sthyi (store
     hypervisor information) instruction

   - removal of the old KVM virtio transport

   - an s390 specific CPU alternatives implementation which is used in
     the new spinlock code"

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux: (88 commits)
  MAINTAINERS: add virtio-ccw.h to virtio/s390 section
  s390/noexec: execute kexec datamover without DAT
  s390: fix transactional execution control register handling
  s390/bpf: take advantage of stack_depth tracking
  s390: simplify transactional execution elf hwcap handling
  s390/zcrypt: Rework struct ap_qact_ap_info.
  s390/virtio: remove unused header file kvm_virtio.h
  s390: avoid undefined behaviour
  s390/disassembler: generate opcode tables from text file
  s390/disassembler: remove insn_to_mnemonic()
  s390/dasd: avoid calling do_gettimeofday()
  s390: vfio-ccw: Do not attempt to free no-op, test and tic cda.
  s390: remove named saved segment support
  s390/archrandom: Reconsider s390 arch random implementation
  s390/pci: do not require AIS facility
  s390/qdio: sanitize put_indicator
  s390/qdio: use atomic_cmpxchg
  s390/nmi: avoid using long-displacement facility
  s390: pass endianness info to sparse
  s390/decompressor: remove informational messages
  ...

1 files changed, 3 insertions, 142 deletions

diff --git a/arch/s390/kernel/early.c b/arch/s390/kernel/early.c
index b945448b9eae..497a92047591 100644
--- a/arch/s390/kernel/early.c
+++ b/arch/s390/kernel/early.c
@@ -31,14 +31,6 @@
 #include <asm/facility.h>
 #include "entry.h"
 
-/*
- * Create a Kernel NSS if the SAVESYS= parameter is defined
- */
-#define DEFSYS_CMD_SIZE		128
-#define SAVESYS_CMD_SIZE	32
-
-char kernel_nss_name[NSS_NAME_SIZE + 1];
-
 static void __init setup_boot_command_line(void);
 
 /*
@@ -59,134 +51,6 @@ static void __init reset_tod_clock(void)
 	S390_lowcore.last_update_clock = TOD_UNIX_EPOCH;
 }
 
-#ifdef CONFIG_SHARED_KERNEL
-int __init savesys_ipl_nss(char *cmd, const int cmdlen);
-
-asm(
-	"	.section .init.text,\"ax\",@progbits\n"
-	"	.align	4\n"
-	"	.type	savesys_ipl_nss, @function\n"
-	"savesys_ipl_nss:\n"
-	"	stmg	6,15,48(15)\n"
-	"	lgr	14,3\n"
-	"	sam31\n"
-	"	diag	2,14,0x8\n"
-	"	sam64\n"
-	"	lgr	2,14\n"
-	"	lmg	6,15,48(15)\n"
-	"	br	14\n"
-	"	.size	savesys_ipl_nss, .-savesys_ipl_nss\n"
-	"	.previous\n");
-
-static __initdata char upper_command_line[COMMAND_LINE_SIZE];
-
-static noinline __init void create_kernel_nss(void)
-{
-	unsigned int i, stext_pfn, eshared_pfn, end_pfn, min_size;
-#ifdef CONFIG_BLK_DEV_INITRD
-	unsigned int sinitrd_pfn, einitrd_pfn;
-#endif
-	int response;
-	int hlen;
-	size_t len;
-	char *savesys_ptr;
-	char defsys_cmd[DEFSYS_CMD_SIZE];
-	char savesys_cmd[SAVESYS_CMD_SIZE];
-
-	/* Do nothing if we are not running under VM */
-	if (!MACHINE_IS_VM)
-		return;
-
-	/* Convert COMMAND_LINE to upper case */
-	for (i = 0; i < strlen(boot_command_line); i++)
-		upper_command_line[i] = toupper(boot_command_line[i]);
-
-	savesys_ptr = strstr(upper_command_line, "SAVESYS=");
-
-	if (!savesys_ptr)
-		return;
-
-	savesys_ptr += 8;    /* Point to the beginning of the NSS name */
-	for (i = 0; i < NSS_NAME_SIZE; i++) {
-		if (savesys_ptr[i] == ' ' || savesys_ptr[i] == '\0')
-			break;
-		kernel_nss_name[i] = savesys_ptr[i];
-	}
-
-	stext_pfn = PFN_DOWN(__pa(&_stext));
-	eshared_pfn = PFN_DOWN(__pa(&_eshared));
-	end_pfn = PFN_UP(__pa(&_end));
-	min_size = end_pfn << 2;
-
-	hlen = snprintf(defsys_cmd, DEFSYS_CMD_SIZE,
-			"DEFSYS %s 00000-%.5X EW %.5X-%.5X SR %.5X-%.5X",
-			kernel_nss_name, stext_pfn - 1, stext_pfn,
-			eshared_pfn - 1, eshared_pfn, end_pfn);
-
-#ifdef CONFIG_BLK_DEV_INITRD
-	if (INITRD_START && INITRD_SIZE) {
-		sinitrd_pfn = PFN_DOWN(__pa(INITRD_START));
-		einitrd_pfn = PFN_UP(__pa(INITRD_START + INITRD_SIZE));
-		min_size = einitrd_pfn << 2;
-		hlen += snprintf(defsys_cmd + hlen, DEFSYS_CMD_SIZE - hlen,
-				 " EW %.5X-%.5X", sinitrd_pfn, einitrd_pfn);
-	}
-#endif
-
-	snprintf(defsys_cmd + hlen, DEFSYS_CMD_SIZE - hlen,
-		 " EW MINSIZE=%.7iK PARMREGS=0-13", min_size);
-	defsys_cmd[DEFSYS_CMD_SIZE - 1] = '\0';
-	snprintf(savesys_cmd, SAVESYS_CMD_SIZE, "SAVESYS %s \n IPL %s",
-		 kernel_nss_name, kernel_nss_name);
-	savesys_cmd[SAVESYS_CMD_SIZE - 1] = '\0';
-
-	__cpcmd(defsys_cmd, NULL, 0, &response);
-
-	if (response != 0) {
-		pr_err("Defining the Linux kernel NSS failed with rc=%d\n",
-			response);
-		kernel_nss_name[0] = '\0';
-		return;
-	}
-
-	len = strlen(savesys_cmd);
-	ASCEBC(savesys_cmd, len);
-	response = savesys_ipl_nss(savesys_cmd, len);
-
-	/* On success: response is equal to the command size,
-	 *	       max SAVESYS_CMD_SIZE
-	 * On error: response contains the numeric portion of cp error message.
-	 *	     for SAVESYS it will be >= 263
-	 *	     for missing privilege class, it will be 1
-	 */
-	if (response > SAVESYS_CMD_SIZE || response == 1) {
-		pr_err("Saving the Linux kernel NSS failed with rc=%d\n",
-			response);
-		kernel_nss_name[0] = '\0';
-		return;
-	}
-
-	/* re-initialize cputime accounting. */
-	get_tod_clock_ext(tod_clock_base);
-	S390_lowcore.last_update_clock = *(__u64 *) &tod_clock_base[1];
-	S390_lowcore.last_update_timer = 0x7fffffffffffffffULL;
-	S390_lowcore.user_timer = 0;
-	S390_lowcore.system_timer = 0;
-	asm volatile("SPT 0(%0)" : : "a" (&S390_lowcore.last_update_timer));
-
-	/* re-setup boot command line with new ipl vm parms */
-	ipl_update_parameters();
-	setup_boot_command_line();
-
-	ipl_flags = IPL_NSS_VALID;
-}
-
-#else /* CONFIG_SHARED_KERNEL */
-
-static inline void create_kernel_nss(void) { }
-
-#endif /* CONFIG_SHARED_KERNEL */
-
 /*
  * Clear bss memory
  */
@@ -375,8 +239,10 @@ static __init void detect_machine_facilities(void)
 		S390_lowcore.machine_flags |= MACHINE_FLAG_IDTE;
 	if (test_facility(40))
 		S390_lowcore.machine_flags |= MACHINE_FLAG_LPP;
-	if (test_facility(50) && test_facility(73))
+	if (test_facility(50) && test_facility(73)) {
 		S390_lowcore.machine_flags |= MACHINE_FLAG_TE;
+		__ctl_set_bit(0, 55);
+	}
 	if (test_facility(51))
 		S390_lowcore.machine_flags |= MACHINE_FLAG_TLB_LC;
 	if (test_facility(129)) {
@@ -549,10 +415,6 @@ static void __init setup_boot_command_line(void)
 	append_to_cmdline(append_ipl_scpdata);
 }
 
-/*
- * Save ipl parameters, clear bss memory, initialize storage keys
- * and create a kernel NSS at startup if the SAVESYS= parm is defined
- */
 void __init startup_init(void)
 {
 	reset_tod_clock();
@@ -569,7 +431,6 @@ void __init startup_init(void)
 	setup_arch_string();
 	ipl_update_parameters();
 	setup_boot_command_line();
-	create_kernel_nss();
 	detect_diag9c();
 	detect_diag44();
 	detect_machine_facilities();