Merge tag 's390-6.6-1' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux

Pull s390 updates from Heiko Carstens:

 - Add vfio-ap support to pass-through crypto devices to secure
   execution guests

 - Add API ordinal 6 support to zcrypt_ep11misc device drive, which is
   required to handle key generate and key derive (e.g. secure key to
   protected key) correctly

 - Add missing secure/has_secure sysfs files for the case where it is
   not possible to figure where a system has been booted from. Existing
   user space relies on that these files are always present

 - Fix DCSS block device driver list corruption, caused by incorrect
   error handling

 - Convert virt_to_pfn() and pfn_to_virt() from defines to static inline
   functions to enforce type checking

 - Cleanups, improvements, and minor fixes to the kernel mapping setup

 - Fix various virtual vs physical address confusions

 - Move pfault code to separate file, since it has nothing to do with
   regular fault handling

 - Move s390 documentation to Documentation/arch/ like it has been done
   for other architectures already

 - Add HAVE_FUNCTION_GRAPH_RETVAL support

 - Factor out the s390_hypfs filesystem and add a new config option for
   it. The filesystem is deprecated and as soon as all users are gone it
   can be removed some time in the not so near future

 - Remove support for old CEX2 and CEX3 crypto cards from zcrypt device
   driver

 - Add support for user-defined certificates: receive user-defined
   certificates with a diagnose call and provide them via 'cert_store'
   keyring to user space

 - Couple of other small fixes and improvements all over the place

* tag 's390-6.6-1' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux: (66 commits)
  s390/pci: use builtin_misc_device macro to simplify the code
  s390/vfio-ap: make sure nib is shared
  KVM: s390: export kvm_s390_pv*_is_protected functions
  s390/uv: export uv_pin_shared for direct usage
  s390/vfio-ap: check for TAPQ response codes 0x35 and 0x36
  s390/vfio-ap: handle queue state change in progress on reset
  s390/vfio-ap: use work struct to verify queue reset
  s390/vfio-ap: store entire AP queue status word with the queue object
  s390/vfio-ap: remove upper limit on wait for queue reset to complete
  s390/vfio-ap: allow deconfigured queue to be passed through to a guest
  s390/vfio-ap: wait for response code 05 to clear on queue reset
  s390/vfio-ap: clean up irq resources if possible
  s390/vfio-ap: no need to check the 'E' and 'I' bits in APQSW after TAPQ
  s390/ipl: refactor deprecated strncpy
  s390/ipl: fix virtual vs physical address confusion
  s390/zcrypt_ep11misc: support API ordinal 6 with empty pin-blob
  s390/paes: fix PKEY_TYPE_EP11_AES handling for secure keyblobs
  s390/pkey: fix PKEY_TYPE_EP11_AES handling for sysfs attributes
  s390/pkey: fix PKEY_TYPE_EP11_AES handling in PKEY_VERIFYKEY2 IOCTL
  s390/pkey: fix PKEY_TYPE_EP11_AES handling in PKEY_KBLOB2PROTK[23]
  ...

1 files changed, 13 insertions, 21 deletions

diff --git a/drivers/s390/crypto/ap_bus.c b/drivers/s390/crypto/ap_bus.c
index 420120be300f..339812efe822 100644
--- a/drivers/s390/crypto/ap_bus.c
+++ b/drivers/s390/crypto/ap_bus.c
@@ -1,6 +1,6 @@
 // SPDX-License-Identifier: GPL-2.0+
 /*
- * Copyright IBM Corp. 2006, 2021
+ * Copyright IBM Corp. 2006, 2023
  * Author(s): Cornelia Huck <cornelia.huck@de.ibm.com>
  *	      Martin Schwidefsky <schwidefsky@de.ibm.com>
  *	      Ralph Wuerthner <rwuerthn@de.ibm.com>
@@ -219,6 +219,15 @@ int ap_sb_available(void)
 }
 
 /*
+ * ap_is_se_guest(): Check for SE guest with AP pass-through support.
+ */
+bool ap_is_se_guest(void)
+{
+	return is_prot_virt_guest() && ap_sb_available();
+}
+EXPORT_SYMBOL(ap_is_se_guest);
+
+/*
  * ap_fetch_qci_info(): Fetch cryptographic config info
  *
  * Returns the ap configuration info fetched via PQAP(QCI).
@@ -387,23 +396,6 @@ static int ap_queue_info(ap_qid_t qid, int *q_type, unsigned int *q_fac,
 		*q_ml = tapq_info.ml;
 		*q_decfg = status.response_code == AP_RESPONSE_DECONFIGURED;
 		*q_cstop = status.response_code == AP_RESPONSE_CHECKSTOPPED;
-		switch (*q_type) {
-			/* For CEX2 and CEX3 the available functions
-			 * are not reflected by the facilities bits.
-			 * Instead it is coded into the type. So here
-			 * modify the function bits based on the type.
-			 */
-		case AP_DEVICE_TYPE_CEX2A:
-		case AP_DEVICE_TYPE_CEX3A:
-			*q_fac |= 0x08000000;
-			break;
-		case AP_DEVICE_TYPE_CEX2C:
-		case AP_DEVICE_TYPE_CEX3C:
-			*q_fac |= 0x10000000;
-			break;
-		default:
-			break;
-		}
 		return 1;
 	default:
 		/*
@@ -1678,8 +1670,8 @@ static int ap_get_compatible_type(ap_qid_t qid, int rawtype, unsigned int func)
 {
 	int comp_type = 0;
 
-	/* < CEX2A is not supported */
-	if (rawtype < AP_DEVICE_TYPE_CEX2A) {
+	/* < CEX4 is not supported */
+	if (rawtype < AP_DEVICE_TYPE_CEX4) {
 		AP_DBF_WARN("%s queue=%02x.%04x unsupported type %d\n",
 			    __func__, AP_QID_CARD(qid),
 			    AP_QID_QUEUE(qid), rawtype);
@@ -1701,7 +1693,7 @@ static int ap_get_compatible_type(ap_qid_t qid, int rawtype, unsigned int func)
 		apinfo.cat = AP_DEVICE_TYPE_CEX8;
 		status = ap_qact(qid, 0, &apinfo);
 		if (status.response_code == AP_RESPONSE_NORMAL &&
-		    apinfo.cat >= AP_DEVICE_TYPE_CEX2A &&
+		    apinfo.cat >= AP_DEVICE_TYPE_CEX4 &&
 		    apinfo.cat <= AP_DEVICE_TYPE_CEX8)
 			comp_type = apinfo.cat;
 	}