Merge tag 's390-5.10-1' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux

Pull s390 updates from Vasily Gorbik:

 - Remove address space overrides using set_fs()

 - Convert to generic vDSO

 - Convert to generic page table dumper

 - Add ARCH_HAS_DEBUG_WX support

 - Add leap seconds handling support

 - Add NVMe firmware-assisted kernel dump support

 - Extend NVMe boot support with memory clearing control and addition of
   kernel parameters

 - AP bus and zcrypt api code rework. Add adapter configure/deconfigure
   interface. Extend debug features. Add failure injection support

 - Add ECC secure private keys support

 - Add KASan support for running protected virtualization host with
   4-level paging

 - Utilize destroy page ultravisor call to speed up secure guests
   shutdown

 - Implement ioremap_wc() and ioremap_prot() with MIO in PCI code

 - Various checksum improvements

 - Other small various fixes and improvements all over the code

* tag 's390-5.10-1' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux: (85 commits)
  s390/uaccess: fix indentation
  s390/uaccess: add default cases for __put_user_fn()/__get_user_fn()
  s390/zcrypt: fix wrong format specifications
  s390/kprobes: move insn_page to text segment
  s390/sie: fix typo in SIGP code description
  s390/lib: fix kernel doc for memcmp()
  s390/zcrypt: Introduce Failure Injection feature
  s390/zcrypt: move ap_msg param one level up the call chain
  s390/ap/zcrypt: revisit ap and zcrypt error handling
  s390/ap: Support AP card SCLP config and deconfig operations
  s390/sclp: Add support for SCLP AP adapter config/deconfig
  s390/ap: add card/queue deconfig state
  s390/ap: add error response code field for ap queue devices
  s390/ap: split ap queue state machine state from device state
  s390/zcrypt: New config switch CONFIG_ZCRYPT_DEBUG
  s390/zcrypt: introduce msg tracking in zcrypt functions
  s390/startup: correct early pgm check info formatting
  s390: remove orphaned extern variables declarations
  s390/kasan: make sure int handler always run with DAT on
  s390/ipl: add support to control memory clearing for nvme re-IPL
  ...

12 files changed, 85 insertions, 67 deletions

diff --git a/drivers/s390/char/Makefile b/drivers/s390/char/Makefile
index 845e12ac5954..c6fdb81a068a 100644
--- a/drivers/s390/char/Makefile
+++ b/drivers/s390/char/Makefile
@@ -34,6 +34,8 @@ obj-$(CONFIG_SCLP_VT220_TTY) += sclp_vt220.o
 
 obj-$(CONFIG_PCI) += sclp_pci.o
 
+obj-$(subst m,y,$(CONFIG_ZCRYPT)) += sclp_ap.o
+
 obj-$(CONFIG_VMLOGRDR) += vmlogrdr.o
 obj-$(CONFIG_VMCP) += vmcp.o
 
diff --git a/drivers/s390/char/con3215.c b/drivers/s390/char/con3215.c
index 92757f9bd010..d8acabbb1ed3 100644
--- a/drivers/s390/char/con3215.c
+++ b/drivers/s390/char/con3215.c
@@ -978,7 +978,6 @@ static int tty3215_install(struct tty_driver *driver, struct tty_struct *tty)
 static int tty3215_open(struct tty_struct *tty, struct file * filp)
 {
 	struct raw3215_info *raw = tty->driver_data;
-	int retval;
 
 	tty_port_tty_set(&raw->port, tty);
 
@@ -986,11 +985,7 @@ static int tty3215_open(struct tty_struct *tty, struct file * filp)
 	/*
 	 * Start up 3215 device
 	 */
-	retval = raw3215_startup(raw);
-	if (retval)
-		return retval;
-
-	return 0;
+	return raw3215_startup(raw);
 }
 
 /*
diff --git a/drivers/s390/char/raw3270.h b/drivers/s390/char/raw3270.h
index 08f36e973b43..8d979e0ee605 100644
--- a/drivers/s390/char/raw3270.h
+++ b/drivers/s390/char/raw3270.h
@@ -110,7 +110,6 @@ struct raw3270_request {
 };
 
 struct raw3270_request *raw3270_request_alloc(size_t size);
-struct raw3270_request *raw3270_request_alloc_bootmem(size_t size);
 void raw3270_request_free(struct raw3270_request *);
 void raw3270_request_reset(struct raw3270_request *);
 void raw3270_request_set_cmd(struct raw3270_request *, u8 cmd);
diff --git a/drivers/s390/char/sclp.h b/drivers/s390/char/sclp.h
index 196333013e54..69d9cde9ff5a 100644
--- a/drivers/s390/char/sclp.h
+++ b/drivers/s390/char/sclp.h
@@ -229,7 +229,7 @@ static inline void sclp_fill_core_info(struct sclp_core_info *info,
 #define SCLP_HAS_CPU_INFO	(sclp.facilities & 0x0800000000000000ULL)
 #define SCLP_HAS_CPU_RECONFIG	(sclp.facilities & 0x0400000000000000ULL)
 #define SCLP_HAS_PCI_RECONFIG	(sclp.facilities & 0x0000000040000000ULL)
-
+#define SCLP_HAS_AP_RECONFIG	(sclp.facilities & 0x0000000100000000ULL)
 
 struct gds_subvector {
 	u8	length;
@@ -305,9 +305,7 @@ int sclp_deactivate(void);
 int sclp_reactivate(void);
 int sclp_sync_request(sclp_cmdw_t command, void *sccb);
 int sclp_sync_request_timeout(sclp_cmdw_t command, void *sccb, int timeout);
-
 int sclp_sdias_init(void);
-void sclp_sdias_exit(void);
 
 enum {
 	sclp_init_state_uninitialized,
diff --git a/drivers/s390/char/sclp_ap.c b/drivers/s390/char/sclp_ap.c
new file mode 100644
index 000000000000..0dd1ca712795
--- /dev/null
+++ b/drivers/s390/char/sclp_ap.c
@@ -0,0 +1,63 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * s390 crypto adapter related sclp functions.
+ *
+ * Copyright IBM Corp. 2020
+ */
+#define KMSG_COMPONENT "sclp_cmd"
+#define pr_fmt(fmt) KMSG_COMPONENT ": " fmt
+
+#include <linux/export.h>
+#include <linux/slab.h>
+#include <asm/sclp.h>
+#include "sclp.h"
+
+#define SCLP_CMDW_CONFIGURE_AP			0x001f0001
+#define SCLP_CMDW_DECONFIGURE_AP		0x001e0001
+
+struct ap_cfg_sccb {
+	struct sccb_header header;
+} __packed;
+
+static int do_ap_configure(sclp_cmdw_t cmd, u32 apid)
+{
+	struct ap_cfg_sccb *sccb;
+	int rc;
+
+	if (!SCLP_HAS_AP_RECONFIG)
+		return -EOPNOTSUPP;
+
+	sccb = (struct ap_cfg_sccb *) get_zeroed_page(GFP_KERNEL | GFP_DMA);
+	if (!sccb)
+		return -ENOMEM;
+
+	sccb->header.length = PAGE_SIZE;
+	cmd |= (apid & 0xFF) << 8;
+	rc = sclp_sync_request(cmd, sccb);
+	if (rc)
+		goto out;
+	switch (sccb->header.response_code) {
+	case 0x0020: case 0x0120: case 0x0440: case 0x0450:
+		break;
+	default:
+		pr_warn("configure AP adapter %u failed: cmd=0x%08x response=0x%04x\n",
+			apid, cmd, sccb->header.response_code);
+		rc = -EIO;
+		break;
+	}
+out:
+	free_page((unsigned long) sccb);
+	return rc;
+}
+
+int sclp_ap_configure(u32 apid)
+{
+	return do_ap_configure(SCLP_CMDW_CONFIGURE_AP, apid);
+}
+EXPORT_SYMBOL(sclp_ap_configure);
+
+int sclp_ap_deconfigure(u32 apid)
+{
+	return do_ap_configure(SCLP_CMDW_DECONFIGURE_AP, apid);
+}
+EXPORT_SYMBOL(sclp_ap_deconfigure);
diff --git a/drivers/s390/char/sclp_early_core.c b/drivers/s390/char/sclp_early_core.c
index 7737470f8498..a960afa974bf 100644
--- a/drivers/s390/char/sclp_early_core.c
+++ b/drivers/s390/char/sclp_early_core.c
@@ -17,12 +17,12 @@
 static struct read_info_sccb __bootdata(sclp_info_sccb);
 static int __bootdata(sclp_info_sccb_valid);
 char *sclp_early_sccb = (char *) EARLY_SCCB_OFFSET;
-int sclp_init_state __section(.data) = sclp_init_state_uninitialized;
+int sclp_init_state = sclp_init_state_uninitialized;
 /*
  * Used to keep track of the size of the event masks. Qemu until version 2.11
  * only supports 4 and needs a workaround.
  */
-bool sclp_mask_compat_mode __section(.data);
+bool sclp_mask_compat_mode;
 
 void sclp_early_wait_irq(void)
 {
@@ -214,11 +214,11 @@ static int sclp_early_setup(int disable, int *have_linemode, int *have_vt220)
  * Output one or more lines of text on the SCLP console (VT220 and /
  * or line-mode).
  */
-void __sclp_early_printk(const char *str, unsigned int len, unsigned int force)
+void __sclp_early_printk(const char *str, unsigned int len)
 {
 	int have_linemode, have_vt220;
 
-	if (!force && sclp_init_state != sclp_init_state_uninitialized)
+	if (sclp_init_state != sclp_init_state_uninitialized)
 		return;
 	if (sclp_early_setup(0, &have_linemode, &have_vt220) != 0)
 		return;
@@ -231,12 +231,7 @@ void __sclp_early_printk(const char *str, unsigned int len, unsigned int force)
 
 void sclp_early_printk(const char *str)
 {
-	__sclp_early_printk(str, strlen(str), 0);
-}
-
-void sclp_early_printk_force(const char *str)
-{
-	__sclp_early_printk(str, strlen(str), 1);
+	__sclp_early_printk(str, strlen(str));
 }
 
 int __init sclp_early_read_info(void)
diff --git a/drivers/s390/char/sclp_rw.c b/drivers/s390/char/sclp_rw.c
index 44594a492553..d6c84e354df5 100644
--- a/drivers/s390/char/sclp_rw.c
+++ b/drivers/s390/char/sclp_rw.c
@@ -337,24 +337,6 @@ sclp_chars_in_buffer(struct sclp_buffer *buffer)
 }
 
 /*
- * sets or provides some values that influence the drivers behaviour
- */
-void
-sclp_set_columns(struct sclp_buffer *buffer, unsigned short columns)
-{
-	buffer->columns = columns;
-	if (buffer->current_line != NULL &&
-	    buffer->current_length > buffer->columns)
-		sclp_finalize_mto(buffer);
-}
-
-void
-sclp_set_htab(struct sclp_buffer *buffer, unsigned short htab)
-{
-	buffer->htab = htab;
-}
-
-/*
  * called by sclp_console_init and/or sclp_tty_init
  */
 int
diff --git a/drivers/s390/char/sclp_rw.h b/drivers/s390/char/sclp_rw.h
index a2eb22f67393..93d706e4935c 100644
--- a/drivers/s390/char/sclp_rw.h
+++ b/drivers/s390/char/sclp_rw.h
@@ -86,8 +86,6 @@ void *sclp_unmake_buffer(struct sclp_buffer *);
 int sclp_buffer_space(struct sclp_buffer *);
 int sclp_write(struct sclp_buffer *buffer, const unsigned char *, int);
 int sclp_emit_buffer(struct sclp_buffer *,void (*)(struct sclp_buffer *,int));
-void sclp_set_columns(struct sclp_buffer *, unsigned short);
-void sclp_set_htab(struct sclp_buffer *, unsigned short);
 int sclp_chars_in_buffer(struct sclp_buffer *);
 
 #ifdef CONFIG_SCLP_CONSOLE
diff --git a/drivers/s390/char/sclp_sdias.c b/drivers/s390/char/sclp_sdias.c
index 644b61013679..215d4b4a5ff5 100644
--- a/drivers/s390/char/sclp_sdias.c
+++ b/drivers/s390/char/sclp_sdias.c
@@ -257,7 +257,7 @@ static int __init sclp_sdias_init_async(void)
 
 int __init sclp_sdias_init(void)
 {
-	if (ipl_info.type != IPL_TYPE_FCP_DUMP)
+	if (!is_ipl_type_dump())
 		return 0;
 	sclp_sdias_sccb = (void *) __get_free_page(GFP_KERNEL | GFP_DMA);
 	BUG_ON(!sclp_sdias_sccb);
@@ -275,9 +275,3 @@ out:
 	TRACE("init done\n");
 	return 0;
 }
-
-void __exit sclp_sdias_exit(void)
-{
-	debug_unregister(sdias_dbf);
-	sclp_unregister(&sclp_sdias_register);
-}
diff --git a/drivers/s390/char/tape.h b/drivers/s390/char/tape.h
index 8bec5f9ea92c..e2c60475dfa8 100644
--- a/drivers/s390/char/tape.h
+++ b/drivers/s390/char/tape.h
@@ -238,7 +238,6 @@ extern int tape_do_io(struct tape_device *, struct tape_request *);
 extern int tape_do_io_async(struct tape_device *, struct tape_request *);
 extern int tape_do_io_interruptible(struct tape_device *, struct tape_request *);
 extern int tape_cancel_io(struct tape_device *, struct tape_request *);
-void tape_hotplug_event(struct tape_device *, int major, int action);
 
 static inline int
 tape_do_io_free(struct tape_device *device, struct tape_request *request)
@@ -258,8 +257,6 @@ tape_do_io_async_free(struct tape_device *device, struct tape_request *request)
 	tape_do_io_async(device, request);
 }
 
-extern int tape_oper_handler(int irq, int status);
-extern void tape_noper_handler(int irq, int status);
 extern int tape_open(struct tape_device *);
 extern int tape_release(struct tape_device *);
 extern int tape_mtop(struct tape_device *, int, int);
diff --git a/drivers/s390/char/tape_std.h b/drivers/s390/char/tape_std.h
index 53ec8e2870d4..dcc63ff587f9 100644
--- a/drivers/s390/char/tape_std.h
+++ b/drivers/s390/char/tape_std.h
@@ -101,7 +101,6 @@ struct tape_request *tape_std_read_block(struct tape_device *, size_t);
 void tape_std_read_backward(struct tape_device *device,
 			    struct tape_request *request);
 struct tape_request *tape_std_write_block(struct tape_device *, size_t);
-void tape_std_check_locate(struct tape_device *, struct tape_request *);
 
 /* Some non-mtop commands. */
 int tape_std_assign(struct tape_device *);
@@ -131,19 +130,8 @@ int tape_std_mtunload(struct tape_device *, int);
 int tape_std_mtweof(struct tape_device *, int);
 
 /* Event handlers */
-void tape_std_default_handler(struct tape_device *);
-void tape_std_unexpect_uchk_handler(struct tape_device *);
-void tape_std_irq(struct tape_device *);
 void tape_std_process_eov(struct tape_device *);
 
-// the error recovery stuff:
-void tape_std_error_recovery(struct tape_device *);
-void tape_std_error_recovery_has_failed(struct tape_device *,int error_id);
-void tape_std_error_recovery_succeded(struct tape_device *);
-void tape_std_error_recovery_do_retry(struct tape_device *);
-void tape_std_error_recovery_read_opposite(struct tape_device *);
-void tape_std_error_recovery_HWBUG(struct tape_device *, int condno);
-
 /* S390 tape types */
 enum s390_tape_type {
         tape_3480,
diff --git a/drivers/s390/char/zcore.c b/drivers/s390/char/zcore.c
index d29f1b71618e..1515fdc3c1ab 100644
--- a/drivers/s390/char/zcore.c
+++ b/drivers/s390/char/zcore.c
@@ -1,7 +1,7 @@
 // SPDX-License-Identifier: GPL-1.0+
 /*
  * zcore module to export memory content and register sets for creating system
- * dumps on SCSI disks (zfcpdump).
+ * dumps on SCSI/NVMe disks (zfcp/nvme dump).
  *
  * For more information please refer to Documentation/s390/zfcpdump.rst
  *
@@ -243,7 +243,7 @@ static int __init zcore_init(void)
 	unsigned char arch;
 	int rc;
 
-	if (ipl_info.type != IPL_TYPE_FCP_DUMP)
+	if (!is_ipl_type_dump())
 		return -ENODATA;
 	if (OLDMEM_BASE)
 		return -ENODATA;
@@ -252,9 +252,16 @@ static int __init zcore_init(void)
 	debug_register_view(zcore_dbf, &debug_sprintf_view);
 	debug_set_level(zcore_dbf, 6);
 
-	TRACE("devno:  %x\n", ipl_info.data.fcp.dev_id.devno);
-	TRACE("wwpn:   %llx\n", (unsigned long long) ipl_info.data.fcp.wwpn);
-	TRACE("lun:    %llx\n", (unsigned long long) ipl_info.data.fcp.lun);
+	if (ipl_info.type == IPL_TYPE_FCP_DUMP) {
+		TRACE("type:   fcp\n");
+		TRACE("devno:  %x\n", ipl_info.data.fcp.dev_id.devno);
+		TRACE("wwpn:   %llx\n", (unsigned long long) ipl_info.data.fcp.wwpn);
+		TRACE("lun:    %llx\n", (unsigned long long) ipl_info.data.fcp.lun);
+	} else if (ipl_info.type == IPL_TYPE_NVME_DUMP) {
+		TRACE("type:   nvme\n");
+		TRACE("fid:    %x\n", ipl_info.data.nvme.fid);
+		TRACE("nsid:   %x\n", ipl_info.data.nvme.nsid);
+	}
 
 	rc = sclp_sdias_init();
 	if (rc)