summaryrefslogtreecommitdiff
path: root/SOURCES/patch-5.15-redhat.patch
blob: 867962f63e486c0be9644f9a2898333f8a5758ce (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
568
569
570
571
572
573
574
575
576
577
578
579
580
581
582
583
584
585
586
587
588
589
590
591
592
593
594
595
596
597
598
599
600
601
602
603
604
605
606
607
608
609
610
611
612
613
614
615
616
617
618
619
620
621
622
623
624
625
626
627
628
629
630
631
632
633
634
635
636
637
638
639
640
641
642
643
644
645
646
647
648
649
650
651
652
653
654
655
656
657
658
659
660
661
662
663
664
665
666
667
668
669
670
671
672
673
674
675
676
677
678
679
680
681
682
683
684
685
686
687
688
689
690
691
692
693
694
695
696
697
698
699
700
701
702
703
704
705
706
707
708
709
710
711
712
713
714
715
716
717
718
719
720
721
722
723
724
725
726
727
728
729
730
731
732
733
734
735
736
737
738
739
740
741
742
743
744
745
746
747
748
749
750
751
752
753
754
755
756
757
758
759
760
761
762
763
764
765
766
767
768
769
770
771
772
773
774
775
776
777
778
779
780
781
782
783
784
785
786
787
788
789
790
791
792
793
794
795
796
797
798
799
800
801
802
803
804
805
806
807
808
809
810
811
812
813
814
815
816
817
818
819
820
821
822
823
824
825
826
827
828
829
830
831
832
833
834
835
836
837
838
839
840
841
842
843
844
845
846
847
848
849
850
851
852
853
854
855
856
857
858
859
860
861
862
863
864
865
866
867
868
869
870
871
872
873
874
875
876
877
878
879
880
881
882
883
884
885
886
887
888
889
890
891
892
893
894
895
896
897
898
899
900
901
902
903
904
905
906
907
908
909
910
911
912
913
914
915
916
917
918
919
920
921
922
923
924
925
926
927
928
929
930
931
932
933
934
935
936
937
938
939
940
941
942
943
944
945
946
947
948
949
950
951
952
953
954
955
956
957
958
959
960
961
962
963
964
965
966
967
968
969
970
971
972
973
974
975
976
977
978
979
980
981
982
983
984
985
986
987
988
989
990
991
992
993
994
995
996
997
998
999
1000
1001
1002
1003
1004
1005
1006
1007
1008
1009
1010
1011
1012
1013
1014
1015
1016
1017
1018
1019
1020
1021
1022
1023
1024
1025
1026
1027
1028
1029
1030
1031
1032
1033
1034
1035
1036
1037
1038
1039
1040
1041
1042
1043
1044
1045
1046
1047
1048
1049
1050
1051
1052
1053
1054
1055
1056
1057
1058
1059
1060
1061
1062
1063
1064
1065
1066
1067
1068
1069
1070
1071
1072
1073
1074
1075
1076
1077
1078
1079
1080
1081
1082
1083
1084
1085
1086
1087
1088
1089
1090
1091
1092
1093
1094
1095
1096
1097
1098
1099
1100
1101
1102
1103
1104
1105
1106
1107
1108
1109
1110
1111
1112
1113
1114
1115
1116
1117
1118
1119
1120
1121
1122
1123
1124
1125
1126
1127
1128
1129
1130
1131
1132
1133
1134
1135
1136
1137
1138
1139
1140
1141
1142
1143
1144
1145
1146
1147
1148
1149
1150
1151
1152
1153
1154
1155
1156
1157
1158
1159
1160
1161
1162
1163
1164
1165
1166
1167
1168
1169
1170
1171
1172
1173
1174
1175
1176
1177
1178
1179
1180
1181
1182
1183
1184
1185
1186
1187
1188
1189
1190
1191
1192
1193
1194
1195
1196
1197
1198
1199
1200
1201
1202
1203
1204
1205
1206
1207
1208
1209
1210
1211
1212
1213
1214
1215
1216
1217
1218
1219
1220
1221
1222
1223
1224
1225
1226
1227
1228
1229
1230
1231
1232
1233
1234
1235
1236
1237
1238
1239
1240
1241
1242
1243
1244
1245
1246
1247
1248
1249
1250
1251
1252
1253
1254
1255
1256
1257
1258
1259
1260
1261
1262
1263
1264
1265
1266
1267
1268
1269
1270
1271
1272
1273
1274
1275
1276
1277
1278
1279
1280
1281
1282
1283
1284
1285
1286
1287
1288
1289
1290
1291
1292
1293
1294
1295
1296
1297
1298
1299
1300
1301
1302
1303
1304
1305
1306
1307
1308
1309
1310
1311
1312
1313
1314
1315
1316
1317
1318
1319
1320
1321
1322
1323
1324
1325
1326
1327
1328
1329
1330
1331
1332
1333
1334
1335
1336
1337
1338
1339
1340
1341
1342
1343
1344
1345
1346
1347
1348
1349
1350
1351
1352
1353
1354
1355
1356
1357
1358
1359
1360
1361
1362
1363
1364
1365
1366
1367
1368
1369
1370
1371
1372
1373
1374
1375
1376
1377
1378
1379
1380
1381
1382
1383
1384
1385
1386
1387
1388
1389
1390
1391
1392
1393
1394
1395
1396
1397
1398
1399
1400
1401
1402
1403
1404
1405
1406
1407
1408
1409
1410
1411
1412
1413
1414
1415
1416
1417
1418
1419
1420
1421
1422
1423
1424
1425
1426
1427
1428
1429
1430
1431
1432
1433
1434
1435
1436
1437
1438
1439
1440
1441
1442
1443
1444
1445
1446
1447
1448
1449
1450
1451
1452
1453
1454
1455
1456
1457
1458
1459
1460
1461
1462
1463
1464
1465
1466
1467
1468
1469
1470
1471
1472
1473
1474
1475
1476
1477
1478
1479
1480
1481
1482
1483
1484
1485
1486
1487
1488
1489
1490
1491
1492
1493
1494
1495
1496
1497
1498
1499
1500
1501
1502
1503
1504
1505
1506
1507
1508
1509
1510
1511
1512
1513
1514
1515
1516
1517
1518
1519
1520
1521
1522
1523
1524
1525
1526
1527
1528
1529
1530
1531
1532
1533
1534
1535
1536
1537
1538
1539
1540
1541
1542
1543
1544
1545
1546
1547
1548
1549
1550
1551
1552
1553
1554
1555
1556
1557
1558
1559
1560
1561
1562
1563
1564
1565
1566
1567
1568
1569
1570
1571
1572
1573
1574
1575
1576
1577
1578
1579
1580
1581
1582
1583
1584
1585
1586
1587
1588
1589
1590
1591
1592
1593
1594
1595
1596
1597
1598
1599
1600
1601
1602
1603
1604
1605
1606
1607
1608
1609
1610
1611
1612
1613
1614
1615
1616
1617
1618
1619
1620
1621
1622
1623
1624
1625
1626
1627
1628
1629
1630
1631
1632
1633
1634
1635
1636
1637
1638
1639
1640
1641
1642
1643
1644
1645
1646
1647
1648
1649
1650
1651
1652
1653
1654
1655
1656
1657
1658
1659
1660
1661
1662
1663
1664
1665
1666
1667
1668
1669
1670
1671
1672
1673
1674
1675
1676
1677
1678
1679
1680
1681
1682
1683
1684
1685
1686
1687
1688
1689
1690
1691
1692
1693
1694
1695
1696
1697
1698
1699
1700
1701
1702
1703
1704
1705
1706
1707
1708
1709
1710
1711
1712
1713
1714
1715
1716
1717
1718
1719
1720
1721
1722
1723
1724
1725
1726
1727
1728
1729
1730
1731
1732
1733
1734
1735
1736
1737
1738
1739
1740
1741
1742
1743
1744
1745
1746
1747
1748
1749
1750
1751
1752
1753
1754
1755
1756
1757
1758
1759
1760
1761
1762
1763
1764
1765
1766
1767
1768
1769
1770
1771
1772
1773
1774
1775
1776
1777
1778
1779
1780
1781
1782
1783
1784
1785
1786
1787
1788
1789
1790
1791
1792
1793
1794
1795
1796
1797
1798
1799
1800
1801
1802
1803
1804
1805
1806
1807
1808
1809
1810
1811
1812
1813
1814
1815
1816
1817
1818
1819
1820
1821
1822
1823
1824
1825
1826
1827
1828
1829
1830
1831
1832
1833
1834
1835
1836
1837
1838
1839
1840
1841
1842
1843
1844
1845
1846
1847
1848
1849
1850
1851
1852
1853
1854
1855
1856
1857
1858
1859
1860
1861
1862
1863
1864
1865
1866
1867
1868
1869
1870
1871
1872
1873
1874
1875
1876
1877
1878
1879
1880
1881
1882
1883
1884
1885
1886
1887
1888
1889
1890
1891
1892
1893
1894
1895
1896
1897
1898
1899
1900
1901
1902
1903
1904
1905
1906
1907
1908
1909
1910
1911
1912
1913
1914
1915
1916
1917
1918
1919
1920
1921
1922
1923
1924
1925
1926
1927
1928
1929
1930
1931
1932
1933
1934
1935
1936
1937
1938
1939
1940
1941
1942
1943
1944
1945
1946
1947
1948
1949
1950
1951
1952
1953
1954
1955
1956
1957
1958
1959
1960
1961
1962
1963
1964
1965
1966
1967
 Documentation/admin-guide/kernel-parameters.txt    |   9 ++
 Makefile                                           |   4 +
 arch/arm/Kconfig                                   |   4 +-
 arch/arm64/Kconfig                                 |   3 +-
 .../boot/dts/rockchip/rk3399-pinebook-pro.dts      |   2 +-
 arch/arm64/kernel/acpi.c                           |   2 +-
 arch/s390/include/asm/ipl.h                        |   1 +
 arch/s390/kernel/ipl.c                             |   5 +
 arch/s390/kernel/setup.c                           |   4 +
 arch/x86/include/asm/pci_x86.h                     |  10 ++
 arch/x86/kernel/resource.c                         |   4 +
 arch/x86/kernel/setup.c                            |  22 ++--
 arch/x86/pci/acpi.c                                |  49 ++++++--
 arch/x86/pci/common.c                              |   6 +
 crypto/rng.c                                       |  73 +++++++++++-
 drivers/acpi/apei/hest.c                           |   8 ++
 drivers/acpi/irq.c                                 |  17 ++-
 drivers/acpi/scan.c                                |   9 ++
 drivers/ata/libahci.c                              |  18 +++
 drivers/char/ipmi/ipmi_dmi.c                       |  15 +++
 drivers/char/ipmi/ipmi_msghandler.c                |  16 ++-
 drivers/char/random.c                              | 115 +++++++++++++++++++
 drivers/firmware/efi/Makefile                      |   1 +
 drivers/firmware/efi/efi.c                         | 124 +++++++++++++++------
 drivers/firmware/efi/secureboot.c                  |  38 +++++++
 drivers/hid/hid-rmi.c                              |  64 -----------
 drivers/hwtracing/coresight/coresight-etm4x-core.c |  19 ++++
 drivers/input/rmi4/rmi_driver.c                    | 124 ++++++++++++---------
 drivers/iommu/iommu.c                              |  22 ++++
 drivers/net/wireless/intel/iwlwifi/mvm/scan.c      |   2 +-
 drivers/net/wireless/marvell/mwifiex/usb.c         |   3 +-
 drivers/nvme/host/core.c                           |  22 +++-
 drivers/nvme/host/multipath.c                      |  19 ++--
 drivers/nvme/host/nvme.h                           |   4 +
 drivers/pci/quirks.c                               |  24 ++++
 drivers/platform/x86/thinkpad_acpi.c               |   4 +-
 drivers/usb/core/hub.c                             |   7 ++
 include/linux/efi.h                                |  22 ++--
 include/linux/lsm_hook_defs.h                      |   2 +
 include/linux/lsm_hooks.h                          |   6 +
 include/linux/random.h                             |   7 ++
 include/linux/rmi.h                                |   1 +
 include/linux/security.h                           |   5 +
 init/Kconfig                                       |   2 +-
 kernel/module_signing.c                            |   9 +-
 scripts/tags.sh                                    |   2 +
 security/integrity/platform_certs/load_uefi.c      |   6 +-
 security/lockdown/Kconfig                          |  13 +++
 security/lockdown/lockdown.c                       |   1 +
 security/security.c                                |   6 +
 50 files changed, 753 insertions(+), 202 deletions(-)

diff --git a/Documentation/admin-guide/kernel-parameters.txt b/Documentation/admin-guide/kernel-parameters.txt
index 8ff6dafafdf8..e3f786336cf9 100644
--- a/Documentation/admin-guide/kernel-parameters.txt
+++ b/Documentation/admin-guide/kernel-parameters.txt
@@ -3955,6 +3955,15 @@
 				please report a bug.
 		nocrs		[X86] Ignore PCI host bridge windows from ACPI.
 				If you need to use this, please report a bug.
+		use_e820	[X86] Use E820 reservations to exclude parts of
+				PCI host bridge windows. This is a workaround
+				for BIOS defects in host bridge _CRS methods.
+				If you need to use this, please report a bug to
+				<linux-pci@vger.kernel.org>.
+		no_e820		[X86] Ignore E820 reservations for PCI host
+				bridge windows. This is the default on modern
+				hardware. If you need to use this, please report
+				a bug to <linux-pci@vger.kernel.org>.
 		routeirq	Do IRQ routing for all PCI devices.
 				This is normally done in pci_enable_device(),
 				so this option is a temporary workaround
diff --git a/Makefile b/Makefile
index a469670e7675..cf656b40117c 100644
--- a/Makefile
+++ b/Makefile
@@ -18,6 +18,10 @@ $(if $(filter __%, $(MAKECMDGOALS)), \
 PHONY := __all
 __all:

+# Set RHEL variables
+# Use this spot to avoid future merge conflicts
+include Makefile.rhelver
+
 # We are using a recursive build, so we need to do a little thinking
 # to get the ordering right.
 #
diff --git a/arch/arm/Kconfig b/arch/arm/Kconfig
index 4ebd512043be..6743668b7b33 100644
--- a/arch/arm/Kconfig
+++ b/arch/arm/Kconfig
@@ -1471,9 +1471,9 @@ config HIGHMEM
 	  If unsure, say n.

 config HIGHPTE
-	bool "Allocate 2nd-level pagetables from highmem" if EXPERT
+	bool "Allocate 2nd-level pagetables from highmem"
 	depends on HIGHMEM
-	default y
+	default n
 	help
 	  The VM uses one page of physical memory for each page table.
 	  For systems with a lot of processes, this can use a lot of
diff --git a/arch/arm64/Kconfig b/arch/arm64/Kconfig
index 0758ea0717f9..fb57b7a992d4 100644
--- a/arch/arm64/Kconfig
+++ b/arch/arm64/Kconfig
@@ -911,7 +911,7 @@ endchoice

 config ARM64_FORCE_52BIT
 	bool "Force 52-bit virtual addresses for userspace"
-	depends on ARM64_VA_BITS_52 && EXPERT
+	depends on ARM64_VA_BITS_52
 	help
 	  For systems with 52-bit userspace VAs enabled, the kernel will attempt
 	  to maintain compatibility with older software by providing 48-bit VAs
@@ -1152,6 +1152,7 @@ config XEN
 config FORCE_MAX_ZONEORDER
 	int
 	default "14" if ARM64_64K_PAGES
+	default "13" if (ARCH_THUNDER && !ARM64_64K_PAGES)
 	default "12" if ARM64_16K_PAGES
 	default "11"
 	help
diff --git a/arch/arm64/boot/dts/rockchip/rk3399-pinebook-pro.dts b/arch/arm64/boot/dts/rockchip/rk3399-pinebook-pro.dts
index 9e5d07f5712e..dae8c252bc2b 100644
--- a/arch/arm64/boot/dts/rockchip/rk3399-pinebook-pro.dts
+++ b/arch/arm64/boot/dts/rockchip/rk3399-pinebook-pro.dts
@@ -707,7 +707,7 @@ fusb0: fusb30x@22 {

 		connector {
 			compatible = "usb-c-connector";
-			data-role = "host";
+			data-role = "dual";
 			label = "USB-C";
 			op-sink-microwatt = <1000000>;
 			power-role = "dual";
diff --git a/arch/arm64/kernel/acpi.c b/arch/arm64/kernel/acpi.c
index f3851724fe35..cac21da49455 100644
--- a/arch/arm64/kernel/acpi.c
+++ b/arch/arm64/kernel/acpi.c
@@ -40,7 +40,7 @@ int acpi_pci_disabled = 1;	/* skip ACPI PCI scan and IRQ initialization */
 EXPORT_SYMBOL(acpi_pci_disabled);

 static bool param_acpi_off __initdata;
-static bool param_acpi_on __initdata;
+static bool param_acpi_on __initdata = true;
 static bool param_acpi_force __initdata;

 static int __init parse_acpi(char *arg)
diff --git a/arch/s390/include/asm/ipl.h b/arch/s390/include/asm/ipl.h
index 3f8ee257f9aa..3ab92feb6241 100644
--- a/arch/s390/include/asm/ipl.h
+++ b/arch/s390/include/asm/ipl.h
@@ -128,6 +128,7 @@ int ipl_report_add_component(struct ipl_report *report, struct kexec_buf *kbuf,
 			     unsigned char flags, unsigned short cert);
 int ipl_report_add_certificate(struct ipl_report *report, void *key,
 			       unsigned long addr, unsigned long len);
+bool ipl_get_secureboot(void);

 /*
  * DIAG 308 support
diff --git a/arch/s390/kernel/ipl.c b/arch/s390/kernel/ipl.c
index 5ad1dde23dc5..b6192d58eed3 100644
--- a/arch/s390/kernel/ipl.c
+++ b/arch/s390/kernel/ipl.c
@@ -2216,3 +2216,8 @@ int ipl_report_free(struct ipl_report *report)
 }

 #endif
+
+bool ipl_get_secureboot(void)
+{
+	return !!ipl_secure_flag;
+}
diff --git a/arch/s390/kernel/setup.c b/arch/s390/kernel/setup.c
index ee67215a678a..931955a9ceca 100644
--- a/arch/s390/kernel/setup.c
+++ b/arch/s390/kernel/setup.c
@@ -49,6 +49,7 @@
 #include <linux/memory.h>
 #include <linux/compat.h>
 #include <linux/start_kernel.h>
+#include <linux/security.h>
 #include <linux/hugetlb.h>
 #include <linux/kmemleak.h>

@@ -970,6 +971,9 @@ void __init setup_arch(char **cmdline_p)

 	log_component_list();

+	if (ipl_get_secureboot())
+		security_lock_kernel_down("Secure IPL mode", LOCKDOWN_INTEGRITY_MAX);
+
 	/* Have one command line that is parsed and saved in /proc/cmdline */
 	/* boot_command_line has been already set up in early.c */
 	*cmdline_p = boot_command_line;
diff --git a/arch/x86/include/asm/pci_x86.h b/arch/x86/include/asm/pci_x86.h
index 490411dba438..0bb4e7dd0ffc 100644
--- a/arch/x86/include/asm/pci_x86.h
+++ b/arch/x86/include/asm/pci_x86.h
@@ -39,6 +39,8 @@ do {						\
 #define PCI_ROOT_NO_CRS		0x100000
 #define PCI_NOASSIGN_BARS	0x200000
 #define PCI_BIG_ROOT_WINDOW	0x400000
+#define PCI_USE_E820		0x800000
+#define PCI_NO_E820		0x1000000

 extern unsigned int pci_probe;
 extern unsigned long pirq_table_addr;
@@ -64,6 +66,8 @@ void pcibios_scan_specific_bus(int busn);

 /* pci-irq.c */

+struct pci_dev;
+
 struct irq_info {
 	u8 bus, devfn;			/* Bus, device and function */
 	struct {
@@ -232,3 +236,9 @@ static inline void mmio_config_writel(void __iomem *pos, u32 val)
 # define x86_default_pci_init_irq	NULL
 # define x86_default_pci_fixup_irqs	NULL
 #endif
+
+#if defined(CONFIG_PCI) && defined(CONFIG_ACPI)
+extern bool pci_use_e820;
+#else
+#define pci_use_e820 false
+#endif
diff --git a/arch/x86/kernel/resource.c b/arch/x86/kernel/resource.c
index 9b9fb7882c20..e8dc9bc327bd 100644
--- a/arch/x86/kernel/resource.c
+++ b/arch/x86/kernel/resource.c
@@ -1,6 +1,7 @@
 // SPDX-License-Identifier: GPL-2.0
 #include <linux/ioport.h>
 #include <asm/e820/api.h>
+#include <asm/pci_x86.h>

 static void resource_clip(struct resource *res, resource_size_t start,
 			  resource_size_t end)
@@ -28,6 +29,9 @@ static void remove_e820_regions(struct resource *avail)
 	int i;
 	struct e820_entry *entry;

+	if (!pci_use_e820)
+		return;
+
 	for (i = 0; i < e820_table->nr_entries; i++) {
 		entry = &e820_table->entries[i];

diff --git a/arch/x86/kernel/setup.c b/arch/x86/kernel/setup.c
index 48596f9fddf4..b31d4f581b66 100644
--- a/arch/x86/kernel/setup.c
+++ b/arch/x86/kernel/setup.c
@@ -20,6 +20,7 @@
 #include <linux/root_dev.h>
 #include <linux/hugetlb.h>
 #include <linux/tboot.h>
+#include <linux/security.h>
 #include <linux/usb/xhci-dbgp.h>
 #include <linux/static_call.h>
 #include <linux/swiotlb.h>
@@ -929,6 +930,13 @@ void __init setup_arch(char **cmdline_p)
 	if (efi_enabled(EFI_BOOT))
 		efi_init();

+	efi_set_secure_boot(boot_params.secure_boot);
+
+#ifdef CONFIG_LOCK_DOWN_IN_EFI_SECURE_BOOT
+	if (efi_enabled(EFI_SECURE_BOOT))
+		security_lock_kernel_down("EFI Secure Boot mode", LOCKDOWN_INTEGRITY_MAX);
+#endif
+
 	dmi_setup();

 	/*
@@ -1094,19 +1102,7 @@ void __init setup_arch(char **cmdline_p)
 	/* Allocate bigger log buffer */
 	setup_log_buf(1);

-	if (efi_enabled(EFI_BOOT)) {
-		switch (boot_params.secure_boot) {
-		case efi_secureboot_mode_disabled:
-			pr_info("Secure boot disabled\n");
-			break;
-		case efi_secureboot_mode_enabled:
-			pr_info("Secure boot enabled\n");
-			break;
-		default:
-			pr_info("Secure boot could not be determined\n");
-			break;
-		}
-	}
+	efi_set_secure_boot(boot_params.secure_boot);

 	reserve_initrd();

diff --git a/arch/x86/pci/acpi.c b/arch/x86/pci/acpi.c
index 948656069cdd..f357dac92610 100644
--- a/arch/x86/pci/acpi.c
+++ b/arch/x86/pci/acpi.c
@@ -1,4 +1,7 @@
 // SPDX-License-Identifier: GPL-2.0
+
+#define pr_fmt(fmt) "PCI: " fmt
+
 #include <linux/pci.h>
 #include <linux/acpi.h>
 #include <linux/init.h>
@@ -21,6 +24,8 @@ struct pci_root_info {

 static bool pci_use_crs = true;
 static bool pci_ignore_seg = false;
+/* Consumed in arch/x86/kernel/resource.c */
+bool pci_use_e820 = false;

 static int __init set_use_crs(const struct dmi_system_id *id)
 {
@@ -36,7 +41,7 @@ static int __init set_nouse_crs(const struct dmi_system_id *id)

 static int __init set_ignore_seg(const struct dmi_system_id *id)
 {
-	printk(KERN_INFO "PCI: %s detected: ignoring ACPI _SEG\n", id->ident);
+	pr_info("%s detected: ignoring ACPI _SEG\n", id->ident);
 	pci_ignore_seg = true;
 	return 0;
 }
@@ -156,10 +161,35 @@ void __init pci_acpi_crs_quirks(void)
 	else if (pci_probe & PCI_USE__CRS)
 		pci_use_crs = true;

-	printk(KERN_INFO "PCI: %s host bridge windows from ACPI; "
-	       "if necessary, use \"pci=%s\" and report a bug\n",
-	       pci_use_crs ? "Using" : "Ignoring",
-	       pci_use_crs ? "nocrs" : "use_crs");
+	pr_info("%s host bridge windows from ACPI; if necessary, use \"pci=%s\" and report a bug\n",
+		pci_use_crs ? "Using" : "Ignoring",
+		pci_use_crs ? "nocrs" : "use_crs");
+
+	/*
+	 * Some BIOS-es contain a bug where they add addresses which map to
+	 * system RAM in the PCI host bridge window returned by the ACPI _CRS
+	 * method, see commit 4dc2287c1805 ("x86: avoid E820 regions when
+	 * allocating address space"). To avoid this Linux by default excludes
+	 * E820 reservations when allocating addresses since 2010.
+	 * In 2020 some systems have shown-up with E820 reservations which cover
+	 * the entire _CRS returned PCI host bridge window, causing all attempts
+	 * to assign memory to PCI BARs to fail if Linux uses E820 reservations.
+	 *
+	 * Ideally Linux would fully stop using E820 reservations, but then
+	 * the old systems this was added for will regress.
+	 * Instead keep the old behavior for old systems, while ignoring the
+	 * E820 reservations for any systems from now on.
+	 */
+	if (year >= 0 && year < 2018)
+		pci_use_e820 = true;
+
+	if (pci_probe & PCI_NO_E820)
+		pci_use_e820 = false;
+	else if (pci_probe & PCI_USE_E820)
+		pci_use_e820 = true;
+
+	pr_info("%s E820 reservations for host bridge windows\n",
+		pci_use_e820 ? "Using" : "Ignoring");
 }

 #ifdef	CONFIG_PCI_MMCONFIG
@@ -334,9 +364,8 @@ struct pci_bus *pci_acpi_scan_root(struct acpi_pci_root *root)
 		root->segment = domain = 0;

 	if (domain && !pci_domains_supported) {
-		printk(KERN_WARNING "pci_bus %04x:%02x: "
-		       "ignored (multiple domains not supported)\n",
-		       domain, busnum);
+		pr_warn("pci_bus %04x:%02x: ignored (multiple domains not supported)\n",
+			domain, busnum);
 		return NULL;
 	}

@@ -404,7 +433,7 @@ int __init pci_acpi_init(void)
 	if (acpi_noirq)
 		return -ENODEV;

-	printk(KERN_INFO "PCI: Using ACPI for IRQ routing\n");
+	pr_info("Using ACPI for IRQ routing\n");
 	acpi_irq_penalty_init();
 	pcibios_enable_irq = acpi_pci_irq_enable;
 	pcibios_disable_irq = acpi_pci_irq_disable;
@@ -416,7 +445,7 @@ int __init pci_acpi_init(void)
 		 * also do it here in case there are still broken drivers that
 		 * don't use pci_enable_device().
 		 */
-		printk(KERN_INFO "PCI: Routing PCI interrupts for all devices because \"pci=routeirq\" specified\n");
+		pr_info("Routing PCI interrupts for all devices because \"pci=routeirq\" specified\n");
 		for_each_pci_dev(dev)
 			acpi_pci_irq_enable(dev);
 	}
diff --git a/arch/x86/pci/common.c b/arch/x86/pci/common.c
index 3507f456fcd0..091ec7e94fcb 100644
--- a/arch/x86/pci/common.c
+++ b/arch/x86/pci/common.c
@@ -595,6 +595,12 @@ char *__init pcibios_setup(char *str)
 	} else if (!strcmp(str, "nocrs")) {
 		pci_probe |= PCI_ROOT_NO_CRS;
 		return NULL;
+	} else if (!strcmp(str, "use_e820")) {
+		pci_probe |= PCI_USE_E820;
+		return NULL;
+	} else if (!strcmp(str, "no_e820")) {
+		pci_probe |= PCI_NO_E820;
+		return NULL;
 #ifdef CONFIG_PHYS_ADDR_T_64BIT
 	} else if (!strcmp(str, "big_root_window")) {
 		pci_probe |= PCI_BIG_ROOT_WINDOW;
diff --git a/crypto/rng.c b/crypto/rng.c
index fea082b25fe4..50a9d040bed1 100644
--- a/crypto/rng.c
+++ b/crypto/rng.c
@@ -11,14 +11,17 @@
 #include <linux/atomic.h>
 #include <crypto/internal/rng.h>
 #include <linux/err.h>
+#include <linux/fips.h>
+#include <linux/kernel.h>
 #include <linux/module.h>
 #include <linux/mutex.h>
 #include <linux/random.h>
 #include <linux/seq_file.h>
+#include <linux/sched.h>
+#include <linux/sched/signal.h>
 #include <linux/slab.h>
 #include <linux/string.h>
 #include <linux/cryptouser.h>
-#include <linux/compiler.h>
 #include <net/netlink.h>

 #include "internal.h"
@@ -224,5 +227,73 @@ void crypto_unregister_rngs(struct rng_alg *algs, int count)
 }
 EXPORT_SYMBOL_GPL(crypto_unregister_rngs);

+static ssize_t crypto_devrandom_read(void __user *buf, size_t buflen)
+{
+	u8 tmp[256];
+	ssize_t ret;
+
+	if (!buflen)
+		return 0;
+
+	ret = crypto_get_default_rng();
+	if (ret)
+		return ret;
+
+	for (;;) {
+		int err;
+		int i;
+
+		i = min_t(int, buflen, sizeof(tmp));
+		err = crypto_rng_get_bytes(crypto_default_rng, tmp, i);
+		if (err) {
+			ret = err;
+			break;
+		}
+
+		if (copy_to_user(buf, tmp, i)) {
+			ret = -EFAULT;
+			break;
+		}
+
+		buflen -= i;
+		buf += i;
+		ret += i;
+
+		if (!buflen)
+			break;
+
+		if (need_resched()) {
+			if (signal_pending(current))
+				break;
+			schedule();
+		}
+	}
+
+	crypto_put_default_rng();
+	memzero_explicit(tmp, sizeof(tmp));
+
+	return ret;
+}
+
+static const struct random_extrng crypto_devrandom_rng = {
+	.extrng_read = crypto_devrandom_read,
+	.owner = THIS_MODULE,
+};
+
+static int __init crypto_rng_init(void)
+{
+	if (fips_enabled)
+		random_register_extrng(&crypto_devrandom_rng);
+	return 0;
+}
+
+static void __exit crypto_rng_exit(void)
+{
+	random_unregister_extrng();
+}
+
+late_initcall(crypto_rng_init);
+module_exit(crypto_rng_exit);
+
 MODULE_LICENSE("GPL");
 MODULE_DESCRIPTION("Random Number Generator");
diff --git a/drivers/acpi/apei/hest.c b/drivers/acpi/apei/hest.c
index 277f00b288d1..adbce15c273d 100644
--- a/drivers/acpi/apei/hest.c
+++ b/drivers/acpi/apei/hest.c
@@ -94,6 +94,14 @@ int apei_hest_parse(apei_hest_func_t func, void *data)
 	if (hest_disable || !hest_tab)
 		return -EINVAL;

+#ifdef CONFIG_ARM64
+	/* Ignore broken firmware */
+	if (!strncmp(hest_tab->header.oem_id, "HPE   ", 6) &&
+	    !strncmp(hest_tab->header.oem_table_id, "ProLiant", 8) &&
+	    MIDR_IMPLEMENTOR(read_cpuid_id()) == ARM_CPU_IMP_APM)
+		return -EINVAL;
+#endif
+
 	hest_hdr = (struct acpi_hest_header *)(hest_tab + 1);
 	for (i = 0; i < hest_tab->error_source_count; i++) {
 		len = hest_esrc_len(hest_hdr);
diff --git a/drivers/acpi/irq.c b/drivers/acpi/irq.c
index c68e694fca26..146cba5ae5bc 100644
--- a/drivers/acpi/irq.c
+++ b/drivers/acpi/irq.c
@@ -130,6 +130,7 @@ struct acpi_irq_parse_one_ctx {
 	unsigned int index;
 	unsigned long *res_flags;
 	struct irq_fwspec *fwspec;
+	bool skip_producer_check;
 };

 /**
@@ -201,7 +202,8 @@ static acpi_status acpi_irq_parse_one_cb(struct acpi_resource *ares,
 		return AE_CTRL_TERMINATE;
 	case ACPI_RESOURCE_TYPE_EXTENDED_IRQ:
 		eirq = &ares->data.extended_irq;
-		if (eirq->producer_consumer == ACPI_PRODUCER)
+		if (!ctx->skip_producer_check &&
+		    eirq->producer_consumer == ACPI_PRODUCER)
 			return AE_OK;
 		if (ctx->index >= eirq->interrupt_count) {
 			ctx->index -= eirq->interrupt_count;
@@ -236,8 +238,19 @@ static acpi_status acpi_irq_parse_one_cb(struct acpi_resource *ares,
 static int acpi_irq_parse_one(acpi_handle handle, unsigned int index,
 			      struct irq_fwspec *fwspec, unsigned long *flags)
 {
-	struct acpi_irq_parse_one_ctx ctx = { -EINVAL, index, flags, fwspec };
+	struct acpi_irq_parse_one_ctx ctx = { -EINVAL, index, flags, fwspec, false };

+	/*
+	 * Firmware on arm64-based HPE m400 platform incorrectly marks
+	 * its UART interrupt as ACPI_PRODUCER rather than ACPI_CONSUMER.
+	 * Don't do the producer/consumer check for that device.
+	 */
+	if (IS_ENABLED(CONFIG_ARM64)) {
+		struct acpi_device *adev = acpi_bus_get_acpi_device(handle);
+
+		if (adev && !strcmp(acpi_device_hid(adev), "APMC0D08"))
+			ctx.skip_producer_check = true;
+	}
 	acpi_walk_resources(handle, METHOD_NAME__CRS, acpi_irq_parse_one_cb, &ctx);
 	return ctx.rc;
 }
diff --git a/drivers/acpi/scan.c b/drivers/acpi/scan.c
index 5b54c80b9d32..86c314f8d8a0 100644
--- a/drivers/acpi/scan.c
+++ b/drivers/acpi/scan.c
@@ -1720,6 +1720,15 @@ static bool acpi_device_enumeration_by_parent(struct acpi_device *device)
 	if (!acpi_match_device_ids(device, i2c_multi_instantiate_ids))
 		return false;

+	/*
+	 * Firmware on some arm64 X-Gene platforms will make the UART
+	 * device appear as both a UART and a slave of that UART. Just
+	 * bail out here for X-Gene UARTs.
+	 */
+	if (IS_ENABLED(CONFIG_ARM64) &&
+	    !strcmp(acpi_device_hid(device), "APMC0D08"))
+		return false;
+
 	INIT_LIST_HEAD(&resource_list);
 	acpi_dev_get_resources(device, &resource_list,
 			       acpi_check_serial_bus_slave,
diff --git a/drivers/ata/libahci.c b/drivers/ata/libahci.c
index 395772fa3943..35aa1b420262 100644
--- a/drivers/ata/libahci.c
+++ b/drivers/ata/libahci.c
@@ -672,6 +672,24 @@ int ahci_stop_engine(struct ata_port *ap)
 	tmp &= ~PORT_CMD_START;
 	writel(tmp, port_mmio + PORT_CMD);

+#ifdef CONFIG_ARM64
+	/* Rev Ax of Cavium CN99XX needs a hack for port stop */
+	if (dev_is_pci(ap->host->dev) &&
+	    to_pci_dev(ap->host->dev)->vendor == 0x14e4 &&
+	    to_pci_dev(ap->host->dev)->device == 0x9027 &&
+	    midr_is_cpu_model_range(read_cpuid_id(),
+			MIDR_CPU_MODEL(ARM_CPU_IMP_BRCM, BRCM_CPU_PART_VULCAN),
+			MIDR_CPU_VAR_REV(0, 0),
+			MIDR_CPU_VAR_REV(0, MIDR_REVISION_MASK))) {
+		tmp = readl(hpriv->mmio + 0x8000);
+		udelay(100);
+		writel(tmp | (1 << 26), hpriv->mmio + 0x8000);
+		udelay(100);
+		writel(tmp & ~(1 << 26), hpriv->mmio + 0x8000);
+		dev_warn(ap->host->dev, "CN99XX SATA reset workaround applied\n");
+	}
+#endif
+
 	/* wait for engine to stop. This could be as long as 500 msec */
 	tmp = ata_wait_register(ap, port_mmio + PORT_CMD,
 				PORT_CMD_LIST_ON, PORT_CMD_LIST_ON, 1, 500);
diff --git a/drivers/char/ipmi/ipmi_dmi.c b/drivers/char/ipmi/ipmi_dmi.c
index bbf7029e224b..cf7faa970dd6 100644
--- a/drivers/char/ipmi/ipmi_dmi.c
+++ b/drivers/char/ipmi/ipmi_dmi.c
@@ -215,6 +215,21 @@ static int __init scan_for_dmi_ipmi(void)
 {
 	const struct dmi_device *dev = NULL;

+#ifdef CONFIG_ARM64
+	/* RHEL-only
+	 * If this is ARM-based HPE m400, return now, because that platform
+	 * reports the host-side ipmi address as intel port-io space, which
+	 * does not exist in the ARM architecture.
+	 */
+	const char *dmistr = dmi_get_system_info(DMI_PRODUCT_NAME);
+
+	if (dmistr && (strcmp("ProLiant m400 Server", dmistr) == 0)) {
+		pr_debug("%s does not support host ipmi\n", dmistr);
+		return 0;
+	}
+	/* END RHEL-only */
+#endif
+
 	while ((dev = dmi_find_device(DMI_DEV_TYPE_IPMI, NULL, dev)))
 		dmi_decode_ipmi((const struct dmi_header *) dev->device_data);

diff --git a/drivers/char/ipmi/ipmi_msghandler.c b/drivers/char/ipmi/ipmi_msghandler.c
index fe91090e04a4..f00bc6886913 100644
--- a/drivers/char/ipmi/ipmi_msghandler.c
+++ b/drivers/char/ipmi/ipmi_msghandler.c
@@ -35,6 +35,7 @@
 #include <linux/uuid.h>
 #include <linux/nospec.h>
 #include <linux/vmalloc.h>
+#include <linux/dmi.h>
 #include <linux/delay.h>

 #define IPMI_DRIVER_VERSION "39.2"
@@ -5178,8 +5179,21 @@ static int __init ipmi_init_msghandler_mod(void)
 {
 	int rv;

-	pr_info("version " IPMI_DRIVER_VERSION "\n");
+#ifdef CONFIG_ARM64
+	/* RHEL-only
+	 * If this is ARM-based HPE m400, return now, because that platform
+	 * reports the host-side ipmi address as intel port-io space, which
+	 * does not exist in the ARM architecture.
+	 */
+	const char *dmistr = dmi_get_system_info(DMI_PRODUCT_NAME);

+	if (dmistr && (strcmp("ProLiant m400 Server", dmistr) == 0)) {
+		pr_debug("%s does not support host ipmi\n", dmistr);
+		return -ENOSYS;
+	}
+	/* END RHEL-only */
+#endif
+	pr_info("version " IPMI_DRIVER_VERSION "\n");
 	mutex_lock(&ipmi_interfaces_mutex);
 	rv = ipmi_register_driver();
 	mutex_unlock(&ipmi_interfaces_mutex);
diff --git a/drivers/char/random.c b/drivers/char/random.c
index 605969ed0f96..4d51f1c67675 100644
--- a/drivers/char/random.c
+++ b/drivers/char/random.c
@@ -335,6 +335,7 @@
 #include <linux/syscalls.h>
 #include <linux/completion.h>
 #include <linux/uuid.h>
+#include <linux/rcupdate.h>
 #include <crypto/chacha.h>
 #include <crypto/sha1.h>

@@ -349,6 +350,11 @@

 /* #define ADD_INTERRUPT_BENCH */

+/*
+ * Hook for external RNG.
+ */
+static const struct random_extrng __rcu *extrng;
+
 /*
  * Configuration information
  */
@@ -481,6 +487,9 @@ static int ratelimit_disable __read_mostly;
 module_param_named(ratelimit_disable, ratelimit_disable, int, 0644);
 MODULE_PARM_DESC(ratelimit_disable, "Disable random ratelimit suppression");

+static const struct file_operations extrng_random_fops;
+static const struct file_operations extrng_urandom_fops;
+
 /**********************************************************************
  *
  * OS independent entropy store.   Here are the functions which handle
@@ -1858,6 +1867,13 @@ random_poll(struct file *file, poll_table * wait)
 	return mask;
 }

+static __poll_t
+extrng_poll(struct file *file, poll_table * wait)
+{
+	/* extrng pool is always full, always read, no writes */
+	return EPOLLIN | EPOLLRDNORM;
+}
+
 static int
 write_pool(struct entropy_store *r, const char __user *buffer, size_t count)
 {
@@ -1961,7 +1977,58 @@ static int random_fasync(int fd, struct file *filp, int on)
 	return fasync_helper(fd, filp, on, &fasync);
 }

+static int random_open(struct inode *inode, struct file *filp)
+{
+	const struct random_extrng *rng;
+
+	rcu_read_lock();
+	rng = rcu_dereference(extrng);
+	if (rng && !try_module_get(rng->owner))
+		rng = NULL;
+	rcu_read_unlock();
+
+	if (!rng)
+		return 0;
+
+	filp->f_op = &extrng_random_fops;
+	filp->private_data = rng->owner;
+
+	return 0;
+}
+
+static int urandom_open(struct inode *inode, struct file *filp)
+{
+	const struct random_extrng *rng;
+
+	rcu_read_lock();
+	rng = rcu_dereference(extrng);
+	if (rng && !try_module_get(rng->owner))
+		rng = NULL;
+	rcu_read_unlock();
+
+	if (!rng)
+		return 0;
+
+	filp->f_op = &extrng_urandom_fops;
+	filp->private_data = rng->owner;
+
+	return 0;
+}
+
+static int extrng_release(struct inode *inode, struct file *filp)
+{
+	module_put(filp->private_data);
+	return 0;
+}
+
+static ssize_t
+extrng_read(struct file *file, char __user *buf, size_t nbytes, loff_t *ppos)
+{
+	return rcu_dereference_raw(extrng)->extrng_read(buf, nbytes);
+}
+
 const struct file_operations random_fops = {
+	.open  = random_open,
 	.read  = random_read,
 	.write = random_write,
 	.poll  = random_poll,
@@ -1972,6 +2039,7 @@ const struct file_operations random_fops = {
 };

 const struct file_operations urandom_fops = {
+	.open  = urandom_open,
 	.read  = urandom_read,
 	.write = random_write,
 	.unlocked_ioctl = random_ioctl,
@@ -1980,9 +2048,31 @@ const struct file_operations urandom_fops = {
 	.llseek = noop_llseek,
 };

+static const struct file_operations extrng_random_fops = {
+	.open  = random_open,
+	.read  = extrng_read,
+	.write = random_write,
+	.poll  = extrng_poll,
+	.unlocked_ioctl = random_ioctl,
+	.fasync = random_fasync,
+	.llseek = noop_llseek,
+	.release = extrng_release,
+};
+
+static const struct file_operations extrng_urandom_fops = {
+	.open  = urandom_open,
+	.read  = extrng_read,
+	.write = random_write,
+	.unlocked_ioctl = random_ioctl,
+	.fasync = random_fasync,
+	.llseek = noop_llseek,
+	.release = extrng_release,
+};
+
 SYSCALL_DEFINE3(getrandom, char __user *, buf, size_t, count,
 		unsigned int, flags)
 {
+	const struct random_extrng *rng;
 	int ret;

 	if (flags & ~(GRND_NONBLOCK|GRND_RANDOM|GRND_INSECURE))
@@ -1998,6 +2088,18 @@ SYSCALL_DEFINE3(getrandom, char __user *, buf, size_t, count,
 	if (count > INT_MAX)
 		count = INT_MAX;

+	rcu_read_lock();
+	rng = rcu_dereference(extrng);
+	if (rng && !try_module_get(rng->owner))
+		rng = NULL;
+	rcu_read_unlock();
+
+	if (rng) {
+		ret = rng->extrng_read(buf, count);
+		module_put(rng->owner);
+		return ret;
+	}
+
 	if (!(flags & GRND_INSECURE) && !crng_ready()) {
 		if (flags & GRND_NONBLOCK)
 			return -EAGAIN;
@@ -2303,3 +2405,16 @@ void add_bootloader_randomness(const void *buf, unsigned int size)
 		add_device_randomness(buf, size);
 }
 EXPORT_SYMBOL_GPL(add_bootloader_randomness);
+
+void random_register_extrng(const struct random_extrng *rng)
+{
+	rcu_assign_pointer(extrng, rng);
+}
+EXPORT_SYMBOL_GPL(random_register_extrng);
+
+void random_unregister_extrng(void)
+{
+	RCU_INIT_POINTER(extrng, NULL);
+	synchronize_rcu();
+}
+EXPORT_SYMBOL_GPL(random_unregister_extrng);
diff --git a/drivers/firmware/efi/Makefile b/drivers/firmware/efi/Makefile
index c02ff25dd477..d860f8eb9a81 100644
--- a/drivers/firmware/efi/Makefile
+++ b/drivers/firmware/efi/Makefile
@@ -28,6 +28,7 @@ obj-$(CONFIG_EFI_FAKE_MEMMAP)		+= fake_map.o
 obj-$(CONFIG_EFI_BOOTLOADER_CONTROL)	+= efibc.o
 obj-$(CONFIG_EFI_TEST)			+= test/
 obj-$(CONFIG_EFI_DEV_PATH_PARSER)	+= dev-path-parser.o
+obj-$(CONFIG_EFI)			+= secureboot.o
 obj-$(CONFIG_APPLE_PROPERTIES)		+= apple-properties.o
 obj-$(CONFIG_EFI_RCI2_TABLE)		+= rci2-table.o
 obj-$(CONFIG_EFI_EMBEDDED_FIRMWARE)	+= embedded-firmware.o
diff --git a/drivers/firmware/efi/efi.c b/drivers/firmware/efi/efi.c
index 847f33ffc4ae..363037f8eaf8 100644
--- a/drivers/firmware/efi/efi.c
+++ b/drivers/firmware/efi/efi.c
@@ -31,6 +31,7 @@
 #include <linux/ucs2_string.h>
 #include <linux/memblock.h>
 #include <linux/security.h>
+#include <linux/bsearch.h>

 #include <asm/early_ioremap.h>

@@ -841,40 +842,101 @@ int efi_mem_type(unsigned long phys_addr)
 }
 #endif

+struct efi_error_code {
+	efi_status_t status;
+	int errno;
+	const char *description;
+};
+
+static const struct efi_error_code efi_error_codes[] = {
+	{ EFI_SUCCESS, 0, "Success"},
+#if 0
+	{ EFI_LOAD_ERROR, -EPICK_AN_ERRNO, "Load Error"},
+#endif
+	{ EFI_INVALID_PARAMETER, -EINVAL, "Invalid Parameter"},
+	{ EFI_UNSUPPORTED, -ENOSYS, "Unsupported"},
+	{ EFI_BAD_BUFFER_SIZE, -ENOSPC, "Bad Buffer Size"},
+	{ EFI_BUFFER_TOO_SMALL, -ENOSPC, "Buffer Too Small"},
+	{ EFI_NOT_READY, -EAGAIN, "Not Ready"},
+	{ EFI_DEVICE_ERROR, -EIO, "Device Error"},
+	{ EFI_WRITE_PROTECTED, -EROFS, "Write Protected"},
+	{ EFI_OUT_OF_RESOURCES, -ENOMEM, "Out of Resources"},
+#if 0
+	{ EFI_VOLUME_CORRUPTED, -EPICK_AN_ERRNO, "Volume Corrupt"},
+	{ EFI_VOLUME_FULL, -EPICK_AN_ERRNO, "Volume Full"},
+	{ EFI_NO_MEDIA, -EPICK_AN_ERRNO, "No Media"},
+	{ EFI_MEDIA_CHANGED, -EPICK_AN_ERRNO, "Media changed"},
+#endif
+	{ EFI_NOT_FOUND, -ENOENT, "Not Found"},
+#if 0
+	{ EFI_ACCESS_DENIED, -EPICK_AN_ERRNO, "Access Denied"},
+	{ EFI_NO_RESPONSE, -EPICK_AN_ERRNO, "No Response"},
+	{ EFI_NO_MAPPING, -EPICK_AN_ERRNO, "No mapping"},
+	{ EFI_TIMEOUT, -EPICK_AN_ERRNO, "Time out"},
+	{ EFI_NOT_STARTED, -EPICK_AN_ERRNO, "Not started"},
+	{ EFI_ALREADY_STARTED, -EPICK_AN_ERRNO, "Already started"},
+#endif
+	{ EFI_ABORTED, -EINTR, "Aborted"},
+#if 0
+	{ EFI_ICMP_ERROR, -EPICK_AN_ERRNO, "ICMP Error"},
+	{ EFI_TFTP_ERROR, -EPICK_AN_ERRNO, "TFTP Error"},
+	{ EFI_PROTOCOL_ERROR, -EPICK_AN_ERRNO, "Protocol Error"},
+	{ EFI_INCOMPATIBLE_VERSION, -EPICK_AN_ERRNO, "Incompatible Version"},
+#endif
+	{ EFI_SECURITY_VIOLATION, -EACCES, "Security Policy Violation"},
+#if 0
+	{ EFI_CRC_ERROR, -EPICK_AN_ERRNO, "CRC Error"},
+	{ EFI_END_OF_MEDIA, -EPICK_AN_ERRNO, "End of Media"},
+	{ EFI_END_OF_FILE, -EPICK_AN_ERRNO, "End of File"},
+	{ EFI_INVALID_LANGUAGE, -EPICK_AN_ERRNO, "Invalid Languages"},
+	{ EFI_COMPROMISED_DATA, -EPICK_AN_ERRNO, "Compromised Data"},
+
+	// warnings
+	{ EFI_WARN_UNKOWN_GLYPH, -EPICK_AN_ERRNO, "Warning Unknown Glyph"},
+	{ EFI_WARN_DELETE_FAILURE, -EPICK_AN_ERRNO, "Warning Delete Failure"},
+	{ EFI_WARN_WRITE_FAILURE, -EPICK_AN_ERRNO, "Warning Write Failure"},
+	{ EFI_WARN_BUFFER_TOO_SMALL, -EPICK_AN_ERRNO, "Warning Buffer Too Small"},
+#endif
+};
+
+static int
+efi_status_cmp_bsearch(const void *key, const void *item)
+{
+	u64 status = (u64)(uintptr_t)key;
+	struct efi_error_code *code = (struct efi_error_code *)item;
+
+	if (status < code->status)
+		return -1;
+	if (status > code->status)
+		return 1;
+	return 0;
+}
+
 int efi_status_to_err(efi_status_t status)
 {
-	int err;
-
-	switch (status) {
-	case EFI_SUCCESS:
-		err = 0;
-		break;
-	case EFI_INVALID_PARAMETER:
-		err = -EINVAL;
-		break;
-	case EFI_OUT_OF_RESOURCES:
-		err = -ENOSPC;
-		break;
-	case EFI_DEVICE_ERROR:
-		err = -EIO;
-		break;
-	case EFI_WRITE_PROTECTED:
-		err = -EROFS;
-		break;
-	case EFI_SECURITY_VIOLATION:
-		err = -EACCES;
-		break;
-	case EFI_NOT_FOUND:
-		err = -ENOENT;
-		break;
-	case EFI_ABORTED:
-		err = -EINTR;
-		break;
-	default:
-		err = -EINVAL;
-	}
+	struct efi_error_code *found;
+	size_t num = sizeof(efi_error_codes) / sizeof(struct efi_error_code);

-	return err;
+	found = bsearch((void *)(uintptr_t)status, efi_error_codes,
+			sizeof(struct efi_error_code), num,
+			efi_status_cmp_bsearch);
+	if (!found)
+		return -EINVAL;
+	return found->errno;
+}
+
+const char *
+efi_status_to_str(efi_status_t status)
+{
+	struct efi_error_code *found;
+	size_t num = sizeof(efi_error_codes) / sizeof(struct efi_error_code);
+
+	found = bsearch((void *)(uintptr_t)status, efi_error_codes,
+			sizeof(struct efi_error_code), num,
+			efi_status_cmp_bsearch);
+	if (!found)
+		return "Unknown error code";
+	return found->description;
 }

 static DEFINE_SPINLOCK(efi_mem_reserve_persistent_lock);
diff --git a/drivers/firmware/efi/secureboot.c b/drivers/firmware/efi/secureboot.c
new file mode 100644
index 000000000000..de0a3714a5d4
--- /dev/null
+++ b/drivers/firmware/efi/secureboot.c
@@ -0,0 +1,38 @@
+/* Core kernel secure boot support.
+ *
+ * Copyright (C) 2017 Red Hat, Inc. All Rights Reserved.
+ * Written by David Howells (dhowells@redhat.com)
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public Licence
+ * as published by the Free Software Foundation; either version
+ * 2 of the Licence, or (at your option) any later version.
+ */
+
+#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
+
+#include <linux/efi.h>
+#include <linux/kernel.h>
+#include <linux/printk.h>
+
+/*
+ * Decide what to do when UEFI secure boot mode is enabled.
+ */
+void __init efi_set_secure_boot(enum efi_secureboot_mode mode)
+{
+	if (efi_enabled(EFI_BOOT)) {
+		switch (mode) {
+		case efi_secureboot_mode_disabled:
+			pr_info("Secure boot disabled\n");
+			break;
+		case efi_secureboot_mode_enabled:
+			set_bit(EFI_SECURE_BOOT, &efi.flags);
+			pr_info("Secure boot enabled\n");
+			break;
+		default:
+			pr_warn("Secure boot could not be determined (mode %u)\n",
+				   mode);
+			break;
+		}
+	}
+}
diff --git a/drivers/hid/hid-rmi.c b/drivers/hid/hid-rmi.c
index 311eee599ce9..2460c6bd46f8 100644
--- a/drivers/hid/hid-rmi.c
+++ b/drivers/hid/hid-rmi.c
@@ -322,19 +322,12 @@ static int rmi_input_event(struct hid_device *hdev, u8 *data, int size)
 {
 	struct rmi_data *hdata = hid_get_drvdata(hdev);
 	struct rmi_device *rmi_dev = hdata->xport.rmi_dev;
-	unsigned long flags;

 	if (!(test_bit(RMI_STARTED, &hdata->flags)))
 		return 0;

-	local_irq_save(flags);
-
 	rmi_set_attn_data(rmi_dev, data[1], &data[2], size - 2);

-	generic_handle_irq(hdata->rmi_irq);
-
-	local_irq_restore(flags);
-
 	return 1;
 }

@@ -591,56 +584,6 @@ static const struct rmi_transport_ops hid_rmi_ops = {
 	.reset		= rmi_hid_reset,
 };

-static void rmi_irq_teardown(void *data)
-{
-	struct rmi_data *hdata = data;
-	struct irq_domain *domain = hdata->domain;
-
-	if (!domain)
-		return;
-
-	irq_dispose_mapping(irq_find_mapping(domain, 0));
-
-	irq_domain_remove(domain);
-	hdata->domain = NULL;
-	hdata->rmi_irq = 0;
-}
-
-static int rmi_irq_map(struct irq_domain *h, unsigned int virq,
-		       irq_hw_number_t hw_irq_num)
-{
-	irq_set_chip_and_handler(virq, &dummy_irq_chip, handle_simple_irq);
-
-	return 0;
-}
-
-static const struct irq_domain_ops rmi_irq_ops = {
-	.map = rmi_irq_map,
-};
-
-static int rmi_setup_irq_domain(struct hid_device *hdev)
-{
-	struct rmi_data *hdata = hid_get_drvdata(hdev);
-	int ret;
-
-	hdata->domain = irq_domain_create_linear(hdev->dev.fwnode, 1,
-						 &rmi_irq_ops, hdata);
-	if (!hdata->domain)
-		return -ENOMEM;
-
-	ret = devm_add_action_or_reset(&hdev->dev, &rmi_irq_teardown, hdata);
-	if (ret)
-		return ret;
-
-	hdata->rmi_irq = irq_create_mapping(hdata->domain, 0);
-	if (hdata->rmi_irq <= 0) {
-		hid_err(hdev, "Can't allocate an IRQ\n");
-		return hdata->rmi_irq < 0 ? hdata->rmi_irq : -ENXIO;
-	}
-
-	return 0;
-}
-
 static int rmi_probe(struct hid_device *hdev, const struct hid_device_id *id)
 {
 	struct rmi_data *data = NULL;
@@ -713,18 +656,11 @@ static int rmi_probe(struct hid_device *hdev, const struct hid_device_id *id)

 	mutex_init(&data->page_mutex);

-	ret = rmi_setup_irq_domain(hdev);
-	if (ret) {
-		hid_err(hdev, "failed to allocate IRQ domain\n");
-		return ret;
-	}
-
 	if (data->device_flags & RMI_DEVICE_HAS_PHYS_BUTTONS)
 		rmi_hid_pdata.gpio_data.disable = true;

 	data->xport.dev = hdev->dev.parent;
 	data->xport.pdata = rmi_hid_pdata;
-	data->xport.pdata.irq = data->rmi_irq;
 	data->xport.proto_name = "hid";
 	data->xport.ops = &hid_rmi_ops;

diff --git a/drivers/hwtracing/coresight/coresight-etm4x-core.c b/drivers/hwtracing/coresight/coresight-etm4x-core.c
index e24252eaf8e4..368d64adeee8 100644
--- a/drivers/hwtracing/coresight/coresight-etm4x-core.c
+++ b/drivers/hwtracing/coresight/coresight-etm4x-core.c
@@ -9,6 +9,7 @@
 #include <linux/init.h>
 #include <linux/types.h>
 #include <linux/device.h>
+#include <linux/dmi.h>
 #include <linux/io.h>
 #include <linux/err.h>
 #include <linux/fs.h>
@@ -2105,6 +2106,16 @@ static const struct amba_id etm4_ids[] = {
 	{},
 };

+static const struct dmi_system_id broken_coresight[] = {
+	{
+		.matches = {
+			DMI_MATCH(DMI_SYS_VENDOR, "HPE"),
+			DMI_MATCH(DMI_PRODUCT_NAME, "Apollo 70"),
+		},
+	},
+	{ }	/* terminating entry */
+};
+
 MODULE_DEVICE_TABLE(amba, etm4_ids);

 static struct amba_driver etm4x_amba_driver = {
@@ -2138,6 +2149,11 @@ static int __init etm4x_init(void)
 {
 	int ret;

+	if (dmi_check_system(broken_coresight)) {
+		pr_info("ETM4 disabled due to firmware bug\n");
+		return 0;
+	}
+
 	ret = etm4_pm_setup();

 	/* etm4_pm_setup() does its own cleanup - exit on error */
@@ -2164,6 +2180,9 @@ static int __init etm4x_init(void)

 static void __exit etm4x_exit(void)
 {
+	if (dmi_check_system(broken_coresight))
+		return;
+
 	amba_driver_unregister(&etm4x_amba_driver);
 	platform_driver_unregister(&etm4_platform_driver);
 	etm4_pm_clear();
diff --git a/drivers/input/rmi4/rmi_driver.c b/drivers/input/rmi4/rmi_driver.c
index 258d5fe3d395..f7298e3dc8f3 100644
--- a/drivers/input/rmi4/rmi_driver.c
+++ b/drivers/input/rmi4/rmi_driver.c
@@ -182,34 +182,47 @@ void rmi_set_attn_data(struct rmi_device *rmi_dev, unsigned long irq_status,
 	attn_data.data = fifo_data;

 	kfifo_put(&drvdata->attn_fifo, attn_data);
+
+	schedule_work(&drvdata->attn_work);
 }
 EXPORT_SYMBOL_GPL(rmi_set_attn_data);

-static irqreturn_t rmi_irq_fn(int irq, void *dev_id)
+static void attn_callback(struct work_struct *work)
 {
-	struct rmi_device *rmi_dev = dev_id;
-	struct rmi_driver_data *drvdata = dev_get_drvdata(&rmi_dev->dev);
+	struct rmi_driver_data *drvdata = container_of(work,
+							struct rmi_driver_data,
+							attn_work);
 	struct rmi4_attn_data attn_data = {0};
 	int ret, count;

 	count = kfifo_get(&drvdata->attn_fifo, &attn_data);
-	if (count) {
-		*(drvdata->irq_status) = attn_data.irq_status;
-		drvdata->attn_data = attn_data;
-	}
+	if (!count)
+		return;

-	ret = rmi_process_interrupt_requests(rmi_dev);
+	*(drvdata->irq_status) = attn_data.irq_status;
+	drvdata->attn_data = attn_data;
+
+	ret = rmi_process_interrupt_requests(drvdata->rmi_dev);
 	if (ret)
-		rmi_dbg(RMI_DEBUG_CORE, &rmi_dev->dev,
+		rmi_dbg(RMI_DEBUG_CORE, &drvdata->rmi_dev->dev,
 			"Failed to process interrupt request: %d\n", ret);

-	if (count) {
-		kfree(attn_data.data);
-		drvdata->attn_data.data = NULL;
-	}
+	kfree(attn_data.data);
+	drvdata->attn_data.data = NULL;

 	if (!kfifo_is_empty(&drvdata->attn_fifo))
-		return rmi_irq_fn(irq, dev_id);
+		schedule_work(&drvdata->attn_work);
+}
+
+static irqreturn_t rmi_irq_fn(int irq, void *dev_id)
+{
+	struct rmi_device *rmi_dev = dev_id;
+	int ret;
+
+	ret = rmi_process_interrupt_requests(rmi_dev);
+	if (ret)
+		rmi_dbg(RMI_DEBUG_CORE, &rmi_dev->dev,
+			"Failed to process interrupt request: %d\n", ret);

 	return IRQ_HANDLED;
 }
@@ -217,7 +230,6 @@ static irqreturn_t rmi_irq_fn(int irq, void *dev_id)
 static int rmi_irq_init(struct rmi_device *rmi_dev)
 {
 	struct rmi_device_platform_data *pdata = rmi_get_platform_data(rmi_dev);
-	struct rmi_driver_data *data = dev_get_drvdata(&rmi_dev->dev);
 	int irq_flags = irq_get_trigger_type(pdata->irq);
 	int ret;

@@ -235,8 +247,6 @@ static int rmi_irq_init(struct rmi_device *rmi_dev)
 		return ret;
 	}

-	data->enabled = true;
-
 	return 0;
 }

@@ -886,23 +896,27 @@ void rmi_enable_irq(struct rmi_device *rmi_dev, bool clear_wake)
 	if (data->enabled)
 		goto out;

-	enable_irq(irq);
-	data->enabled = true;
-	if (clear_wake && device_may_wakeup(rmi_dev->xport->dev)) {
-		retval = disable_irq_wake(irq);
-		if (retval)
-			dev_warn(&rmi_dev->dev,
-				 "Failed to disable irq for wake: %d\n",
-				 retval);
-	}
+	if (irq) {
+		enable_irq(irq);
+		data->enabled = true;
+		if (clear_wake && device_may_wakeup(rmi_dev->xport->dev)) {
+			retval = disable_irq_wake(irq);
+			if (retval)
+				dev_warn(&rmi_dev->dev,
+					 "Failed to disable irq for wake: %d\n",
+					 retval);
+		}

-	/*
-	 * Call rmi_process_interrupt_requests() after enabling irq,
-	 * otherwise we may lose interrupt on edge-triggered systems.
-	 */
-	irq_flags = irq_get_trigger_type(pdata->irq);
-	if (irq_flags & IRQ_TYPE_EDGE_BOTH)
-		rmi_process_interrupt_requests(rmi_dev);
+		/*
+		 * Call rmi_process_interrupt_requests() after enabling irq,
+		 * otherwise we may lose interrupt on edge-triggered systems.
+		 */
+		irq_flags = irq_get_trigger_type(pdata->irq);
+		if (irq_flags & IRQ_TYPE_EDGE_BOTH)
+			rmi_process_interrupt_requests(rmi_dev);
+	} else {
+		data->enabled = true;
+	}

 out:
 	mutex_unlock(&data->enabled_mutex);
@@ -922,20 +936,22 @@ void rmi_disable_irq(struct rmi_device *rmi_dev, bool enable_wake)
 		goto out;

 	data->enabled = false;
-	disable_irq(irq);
-	if (enable_wake && device_may_wakeup(rmi_dev->xport->dev)) {
-		retval = enable_irq_wake(irq);
-		if (retval)
-			dev_warn(&rmi_dev->dev,
-				 "Failed to enable irq for wake: %d\n",
-				 retval);
-	}
-
-	/* make sure the fifo is clean */
-	while (!kfifo_is_empty(&data->attn_fifo)) {
-		count = kfifo_get(&data->attn_fifo, &attn_data);
-		if (count)
-			kfree(attn_data.data);
+	if (irq) {
+		disable_irq(irq);
+		if (enable_wake && device_may_wakeup(rmi_dev->xport->dev)) {
+			retval = enable_irq_wake(irq);
+			if (retval)
+				dev_warn(&rmi_dev->dev,
+					 "Failed to enable irq for wake: %d\n",
+					 retval);
+		}
+	} else {
+		/* make sure the fifo is clean */
+		while (!kfifo_is_empty(&data->attn_fifo)) {
+			count = kfifo_get(&data->attn_fifo, &attn_data);
+			if (count)
+				kfree(attn_data.data);
+		}
 	}

 out:
@@ -981,6 +997,8 @@ static int rmi_driver_remove(struct device *dev)
 	irq_domain_remove(data->irqdomain);
 	data->irqdomain = NULL;

+	cancel_work_sync(&data->attn_work);
+
 	rmi_f34_remove_sysfs(rmi_dev);
 	rmi_free_function_list(rmi_dev);

@@ -1219,9 +1237,15 @@ static int rmi_driver_probe(struct device *dev)
 		}
 	}

-	retval = rmi_irq_init(rmi_dev);
-	if (retval < 0)
-		goto err_destroy_functions;
+	if (pdata->irq) {
+		retval = rmi_irq_init(rmi_dev);
+		if (retval < 0)
+			goto err_destroy_functions;
+	}
+
+	data->enabled = true;
+
+	INIT_WORK(&data->attn_work, attn_callback);

 	if (data->f01_container->dev.driver) {
 		/* Driver already bound, so enable ATTN now. */
diff --git a/drivers/iommu/iommu.c b/drivers/iommu/iommu.c
index 3303d707bab4..372edaaafaa1 100644
--- a/drivers/iommu/iommu.c
+++ b/drivers/iommu/iommu.c
@@ -7,6 +7,7 @@
 #define pr_fmt(fmt)    "iommu: " fmt

 #include <linux/device.h>
+#include <linux/dmi.h>
 #include <linux/dma-iommu.h>
 #include <linux/kernel.h>
 #include <linux/bits.h>
@@ -3118,6 +3119,27 @@ u32 iommu_sva_get_pasid(struct iommu_sva *handle)
 }
 EXPORT_SYMBOL_GPL(iommu_sva_get_pasid);

+#ifdef CONFIG_ARM64
+static int __init iommu_quirks(void)
+{
+	const char *vendor, *name;
+
+	vendor = dmi_get_system_info(DMI_SYS_VENDOR);
+	name = dmi_get_system_info(DMI_PRODUCT_NAME);
+
+	if (vendor &&
+	    (strncmp(vendor, "GIGABYTE", 8) == 0 && name &&
+	     (strncmp(name, "R120", 4) == 0 ||
+	      strncmp(name, "R270", 4) == 0))) {
+		pr_warn("Gigabyte %s detected, force iommu passthrough mode", name);
+		iommu_def_domain_type = IOMMU_DOMAIN_IDENTITY;
+	}
+
+	return 0;
+}
+arch_initcall(iommu_quirks);
+#endif
+
 /*
  * Changes the default domain of an iommu group that has *only* one device
  *
diff --git a/drivers/net/wireless/intel/iwlwifi/mvm/scan.c b/drivers/net/wireless/intel/iwlwifi/mvm/scan.c
index d78e436fa8b5..b064d3137e46 100644
--- a/drivers/net/wireless/intel/iwlwifi/mvm/scan.c
+++ b/drivers/net/wireless/intel/iwlwifi/mvm/scan.c
@@ -2490,7 +2490,7 @@ static int iwl_mvm_check_running_scans(struct iwl_mvm *mvm, int type)
 	return -EIO;
 }

-#define SCAN_TIMEOUT 20000
+#define SCAN_TIMEOUT 30000

 void iwl_mvm_scan_timeout_wk(struct work_struct *work)
 {
diff --git a/drivers/net/wireless/marvell/mwifiex/usb.c b/drivers/net/wireless/marvell/mwifiex/usb.c
index 9736aa0ab7fd..8f01fcbe9396 100644
--- a/drivers/net/wireless/marvell/mwifiex/usb.c
+++ b/drivers/net/wireless/marvell/mwifiex/usb.c
@@ -130,7 +130,8 @@ static int mwifiex_usb_recv(struct mwifiex_adapter *adapter,
 		default:
 			mwifiex_dbg(adapter, ERROR,
 				    "unknown recv_type %#x\n", recv_type);
-			return -1;
+			ret = -1;
+			goto exit_restore_skb;
 		}
 		break;
 	case MWIFIEX_USB_EP_DATA:
diff --git a/drivers/nvme/host/core.c b/drivers/nvme/host/core.c
index f8dd664b2eda..0ff9ea8340e4 100644
--- a/drivers/nvme/host/core.c
+++ b/drivers/nvme/host/core.c
@@ -262,6 +262,9 @@ static void nvme_delete_ctrl_sync(struct nvme_ctrl *ctrl)

 static blk_status_t nvme_error_status(u16 status)
 {
+	if (unlikely(status & NVME_SC_DNR))
+		return BLK_STS_TARGET;
+
 	switch (status & 0x7ff) {
 	case NVME_SC_SUCCESS:
 		return BLK_STS_OK;
@@ -321,6 +324,7 @@ enum nvme_disposition {
 	COMPLETE,
 	RETRY,
 	FAILOVER,
+	FAILUP,
 };

 static inline enum nvme_disposition nvme_decide_disposition(struct request *req)
@@ -328,15 +332,16 @@ static inline enum nvme_disposition nvme_decide_disposition(struct request *req)
 	if (likely(nvme_req(req)->status == 0))
 		return COMPLETE;

-	if (blk_noretry_request(req) ||
+	if ((req->cmd_flags & (REQ_FAILFAST_DEV | REQ_FAILFAST_DRIVER)) ||
 	    (nvme_req(req)->status & NVME_SC_DNR) ||
 	    nvme_req(req)->retries >= nvme_max_retries)
 		return COMPLETE;

-	if (req->cmd_flags & REQ_NVME_MPATH) {
+	if (req->cmd_flags & (REQ_NVME_MPATH | REQ_FAILFAST_TRANSPORT)) {
 		if (nvme_is_path_error(nvme_req(req)->status) ||
 		    blk_queue_dying(req->q))
-			return FAILOVER;
+			return (req->cmd_flags & REQ_NVME_MPATH) ?
+				FAILOVER : FAILUP;
 	} else {
 		if (blk_queue_dying(req->q))
 			return COMPLETE;
@@ -358,6 +363,14 @@ static inline void nvme_end_req(struct request *req)
 	blk_mq_end_request(req, status);
 }

+static inline void nvme_failup_req(struct request *req)
+{
+	nvme_update_ana(req);
+
+	nvme_req(req)->status = NVME_SC_HOST_PATH_ERROR;
+	nvme_end_req(req);
+}
+
 void nvme_complete_rq(struct request *req)
 {
 	trace_nvme_complete_rq(req);
@@ -376,6 +389,9 @@ void nvme_complete_rq(struct request *req)
 	case FAILOVER:
 		nvme_failover_req(req);
 		return;
+	case FAILUP:
+		nvme_failup_req(req);
+		return;
 	}
 }
 EXPORT_SYMBOL_GPL(nvme_complete_rq);
diff --git a/drivers/nvme/host/multipath.c b/drivers/nvme/host/multipath.c
index 2f76969408b2..021a4176b321 100644
--- a/drivers/nvme/host/multipath.c
+++ b/drivers/nvme/host/multipath.c
@@ -65,14 +65,10 @@ bool nvme_mpath_set_disk_name(struct nvme_ns *ns, char *disk_name, int *flags)
 	return true;
 }

-void nvme_failover_req(struct request *req)
+void nvme_update_ana(struct request *req)
 {
 	struct nvme_ns *ns = req->q->queuedata;
 	u16 status = nvme_req(req)->status & 0x7ff;
-	unsigned long flags;
-	struct bio *bio;
-
-	nvme_mpath_clear_current_path(ns);

 	/*
 	 * If we got back an ANA error, we know the controller is alive but not
@@ -83,6 +79,16 @@ void nvme_failover_req(struct request *req)
 		set_bit(NVME_NS_ANA_PENDING, &ns->flags);
 		queue_work(nvme_wq, &ns->ctrl->ana_work);
 	}
+}
+
+void nvme_failover_req(struct request *req)
+{
+	struct nvme_ns *ns = req->q->queuedata;
+	unsigned long flags;
+	struct bio *bio;
+
+	nvme_mpath_clear_current_path(ns);
+	nvme_update_ana(req);

 	spin_lock_irqsave(&ns->head->requeue_lock, flags);
 	for (bio = req->bio; bio; bio = bio->bi_next)
@@ -813,8 +819,7 @@ int nvme_mpath_init_identify(struct nvme_ctrl *ctrl, struct nvme_id_ctrl *id)
 	int error = 0;

 	/* check if multipath is enabled and we have the capability */
-	if (!multipath || !ctrl->subsys ||
-	    !(ctrl->subsys->cmic & NVME_CTRL_CMIC_ANA))
+	if (!ctrl->subsys || !(ctrl->subsys->cmic & NVME_CTRL_CMIC_ANA))
 		return 0;

 	if (!ctrl->max_namespaces ||
diff --git a/drivers/nvme/host/nvme.h b/drivers/nvme/host/nvme.h
index ed79a6c7e804..961dc67d7261 100644
--- a/drivers/nvme/host/nvme.h
+++ b/drivers/nvme/host/nvme.h
@@ -746,6 +746,7 @@ void nvme_mpath_wait_freeze(struct nvme_subsystem *subsys);
 void nvme_mpath_start_freeze(struct nvme_subsystem *subsys);
 bool nvme_mpath_set_disk_name(struct nvme_ns *ns, char *disk_name, int *flags);
 void nvme_failover_req(struct request *req);
+void nvme_update_ana(struct request *req);
 void nvme_kick_requeue_lists(struct nvme_ctrl *ctrl);
 int nvme_mpath_alloc_disk(struct nvme_ctrl *ctrl,struct nvme_ns_head *head);
 void nvme_mpath_add_disk(struct nvme_ns *ns, struct nvme_id_ns *id);
@@ -784,6 +785,9 @@ static inline bool nvme_mpath_set_disk_name(struct nvme_ns *ns, char *disk_name,
 static inline void nvme_failover_req(struct request *req)
 {
 }
+static inline void nvme_update_ana(struct request *req)
+{
+}
 static inline void nvme_kick_requeue_lists(struct nvme_ctrl *ctrl)
 {
 }
diff --git a/drivers/pci/quirks.c b/drivers/pci/quirks.c
index 208fa03acdda..88cfaa8ac3b3 100644
--- a/drivers/pci/quirks.c
+++ b/drivers/pci/quirks.c
@@ -4269,6 +4269,30 @@ DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_BROADCOM, 0x9000,
 DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_BROADCOM, 0x9084,
 				quirk_bridge_cavm_thrx2_pcie_root);

+/*
+ * PCI BAR 5 is not setup correctly for the on-board AHCI controller
+ * on Broadcom's Vulcan processor. Added a quirk to fix BAR 5 by
+ * using BAR 4's resources which are populated correctly and NOT
+ * actually used by the AHCI controller.
+ */
+static void quirk_fix_vulcan_ahci_bars(struct pci_dev *dev)
+{
+	struct resource *r =  &dev->resource[4];
+
+	if (!(r->flags & IORESOURCE_MEM) || (r->start == 0))
+		return;
+
+	/* Set BAR5 resource to BAR4 */
+	dev->resource[5] = *r;
+
+	/* Update BAR5 in pci config space */
+	pci_write_config_dword(dev, PCI_BASE_ADDRESS_5, r->start);
+
+	/* Clear BAR4's resource */
+	memset(r, 0, sizeof(*r));
+}
+DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_BROADCOM, 0x9027, quirk_fix_vulcan_ahci_bars);
+
 /*
  * Intersil/Techwell TW686[4589]-based video capture cards have an empty (zero)
  * class code.  Fix it.
diff --git a/drivers/platform/x86/thinkpad_acpi.c b/drivers/platform/x86/thinkpad_acpi.c
index 3dc055ce6e61..bb56640eb31f 100644
--- a/drivers/platform/x86/thinkpad_acpi.c
+++ b/drivers/platform/x86/thinkpad_acpi.c
@@ -5813,11 +5813,11 @@ static const char * const tpacpi_led_names[TPACPI_LED_NUMLEDS] = {
 	"tpacpi::standby",
 	"tpacpi::dock_status1",
 	"tpacpi::dock_status2",
-	"tpacpi::unknown_led2",
+	"tpacpi::lid_logo_dot",
 	"tpacpi::unknown_led3",
 	"tpacpi::thinkvantage",
 };
-#define TPACPI_SAFE_LEDS	0x1081U
+#define TPACPI_SAFE_LEDS	0x1481U

 static inline bool tpacpi_is_led_restricted(const unsigned int led)
 {
diff --git a/drivers/usb/core/hub.c b/drivers/usb/core/hub.c
index 00070a8a6507..e9e0ffa990cd 100644
--- a/drivers/usb/core/hub.c
+++ b/drivers/usb/core/hub.c
@@ -5666,6 +5666,13 @@ static void hub_event(struct work_struct *work)
 			(u16) hub->change_bits[0],
 			(u16) hub->event_bits[0]);

+	/* Don't disconnect USB-SATA on TrimSlice */
+	if (strcmp(dev_name(hdev->bus->controller), "tegra-ehci.0") == 0) {
+		if ((hdev->state == 7) && (hub->change_bits[0] == 0) &&
+				(hub->event_bits[0] == 0x2))
+			hub->event_bits[0] = 0;
+	}
+
 	/* Lock the device, then check to see if we were
 	 * disconnected while waiting for the lock to succeed. */
 	usb_lock_device(hdev);
diff --git a/include/linux/efi.h b/include/linux/efi.h
index 3d8ddc5eca8c..779f41901f35 100644
--- a/include/linux/efi.h
+++ b/include/linux/efi.h
@@ -43,6 +43,8 @@
 #define EFI_ABORTED		(21 | (1UL << (BITS_PER_LONG-1)))
 #define EFI_SECURITY_VIOLATION	(26 | (1UL << (BITS_PER_LONG-1)))

+#define EFI_IS_ERROR(x)		((x) & (1UL << (BITS_PER_LONG-1)))
+
 typedef unsigned long efi_status_t;
 typedef u8 efi_bool_t;
 typedef u16 efi_char16_t;		/* UNICODE character */
@@ -782,6 +784,14 @@ extern int __init efi_setup_pcdp_console(char *);
 #define EFI_MEM_ATTR		10	/* Did firmware publish an EFI_MEMORY_ATTRIBUTES table? */
 #define EFI_MEM_NO_SOFT_RESERVE	11	/* Is the kernel configured to ignore soft reservations? */
 #define EFI_PRESERVE_BS_REGIONS	12	/* Are EFI boot-services memory segments available? */
+#define EFI_SECURE_BOOT		13	/* Are we in Secure Boot mode? */
+
+enum efi_secureboot_mode {
+	efi_secureboot_mode_unset,
+	efi_secureboot_mode_unknown,
+	efi_secureboot_mode_disabled,
+	efi_secureboot_mode_enabled,
+};

 #ifdef CONFIG_EFI
 /*
@@ -793,6 +803,8 @@ static inline bool efi_enabled(int feature)
 }
 extern void efi_reboot(enum reboot_mode reboot_mode, const char *__unused);

+extern void __init efi_set_secure_boot(enum efi_secureboot_mode mode);
+
 bool __pure __efi_soft_reserve_enabled(void);

 static inline bool __pure efi_soft_reserve_enabled(void)
@@ -813,6 +825,8 @@ static inline bool efi_enabled(int feature)
 static inline void
 efi_reboot(enum reboot_mode reboot_mode, const char *__unused) {}

+static inline void efi_set_secure_boot(enum efi_secureboot_mode mode) {}
+
 static inline bool efi_soft_reserve_enabled(void)
 {
 	return false;
@@ -825,6 +839,7 @@ static inline bool efi_rt_services_supported(unsigned int mask)
 #endif

 extern int efi_status_to_err(efi_status_t status);
+extern const char *efi_status_to_str(efi_status_t status);

 /*
  * Variable Attributes
@@ -1077,13 +1092,6 @@ static inline bool efi_runtime_disabled(void) { return true; }
 extern void efi_call_virt_check_flags(unsigned long flags, const char *call);
 extern unsigned long efi_call_virt_save_flags(void);

-enum efi_secureboot_mode {
-	efi_secureboot_mode_unset,
-	efi_secureboot_mode_unknown,
-	efi_secureboot_mode_disabled,
-	efi_secureboot_mode_enabled,
-};
-
 static inline
 enum efi_secureboot_mode efi_get_secureboot_mode(efi_get_variable_t *get_var)
 {
diff --git a/include/linux/lsm_hook_defs.h b/include/linux/lsm_hook_defs.h
index 61590c1f2d33..4c10750865c2 100644
--- a/include/linux/lsm_hook_defs.h
+++ b/include/linux/lsm_hook_defs.h
@@ -394,6 +394,8 @@ LSM_HOOK(void, LSM_RET_VOID, bpf_prog_free_security, struct bpf_prog_aux *aux)
 #endif /* CONFIG_BPF_SYSCALL */

 LSM_HOOK(int, 0, locked_down, enum lockdown_reason what)
+LSM_HOOK(int, 0, lock_kernel_down, const char *where, enum lockdown_reason level)
+

 #ifdef CONFIG_PERF_EVENTS
 LSM_HOOK(int, 0, perf_event_open, struct perf_event_attr *attr, int type)
diff --git a/include/linux/lsm_hooks.h b/include/linux/lsm_hooks.h
index 59024618554e..ab9ca4d393da 100644
--- a/include/linux/lsm_hooks.h
+++ b/include/linux/lsm_hooks.h
@@ -1545,6 +1545,12 @@
  *
  *     @what: kernel feature being accessed
  *
+ * @lock_kernel_down
+ * 	Put the kernel into lock-down mode.
+ *
+ * 	@where: Where the lock-down is originating from (e.g. command line option)
+ * 	@level: The lock-down level (can only increase)
+ *
  * Security hooks for perf events
  *
  * @perf_event_open:
diff --git a/include/linux/random.h b/include/linux/random.h
index f45b8be3e3c4..7ccdec68b789 100644
--- a/include/linux/random.h
+++ b/include/linux/random.h
@@ -14,6 +14,11 @@

 #include <uapi/linux/random.h>

+struct random_extrng {
+	ssize_t (*extrng_read)(void __user *buf, size_t buflen);
+	struct module *owner;
+};
+
 struct random_ready_callback {
 	struct list_head list;
 	void (*func)(struct random_ready_callback *rdy);
@@ -44,6 +49,8 @@ extern bool rng_is_initialized(void);
 extern int add_random_ready_callback(struct random_ready_callback *rdy);
 extern void del_random_ready_callback(struct random_ready_callback *rdy);
 extern int __must_check get_random_bytes_arch(void *buf, int nbytes);
+void random_register_extrng(const struct random_extrng *rng);
+void random_unregister_extrng(void);

 #ifndef MODULE
 extern const struct file_operations random_fops, urandom_fops;
diff --git a/include/linux/rmi.h b/include/linux/rmi.h
index ab7eea01ab42..fff7c5f737fc 100644
--- a/include/linux/rmi.h
+++ b/include/linux/rmi.h
@@ -364,6 +364,7 @@ struct rmi_driver_data {

 	struct rmi4_attn_data attn_data;
 	DECLARE_KFIFO(attn_fifo, struct rmi4_attn_data, 16);
+	struct work_struct attn_work;
 };

 int rmi_register_transport_device(struct rmi_transport_dev *xport);
diff --git a/include/linux/security.h b/include/linux/security.h
index 46a02ce34d00..37e991a10d70 100644
--- a/include/linux/security.h
+++ b/include/linux/security.h
@@ -472,6 +472,7 @@ int security_inode_notifysecctx(struct inode *inode, void *ctx, u32 ctxlen);
 int security_inode_setsecctx(struct dentry *dentry, void *ctx, u32 ctxlen);
 int security_inode_getsecctx(struct inode *inode, void **ctx, u32 *ctxlen);
 int security_locked_down(enum lockdown_reason what);
+int security_lock_kernel_down(const char *where, enum lockdown_reason level);
 #else /* CONFIG_SECURITY */

 static inline int call_blocking_lsm_notifier(enum lsm_event event, void *data)
@@ -1353,6 +1354,10 @@ static inline int security_locked_down(enum lockdown_reason what)
 {
 	return 0;
 }
+static inline int security_lock_kernel_down(const char *where, enum lockdown_reason level)
+{
+	return 0;
+}
 #endif	/* CONFIG_SECURITY */

 #if defined(CONFIG_SECURITY) && defined(CONFIG_WATCH_QUEUE)
diff --git a/init/Kconfig b/init/Kconfig
index 11f8a845f259..9b94cc1b5546 100644
--- a/init/Kconfig
+++ b/init/Kconfig
@@ -1648,7 +1648,7 @@ config AIO
 	  this option saves about 7k.

 config IO_URING
-	bool "Enable IO uring support" if EXPERT
+	bool "Enable IO uring support"
 	select IO_WQ
 	default y
 	help
diff --git a/kernel/module_signing.c b/kernel/module_signing.c
index 8723ae70ea1f..fb2d773498c2 100644
--- a/kernel/module_signing.c
+++ b/kernel/module_signing.c
@@ -38,8 +38,15 @@ int mod_verify_sig(const void *mod, struct load_info *info)
 	modlen -= sig_len + sizeof(ms);
 	info->len = modlen;

-	return verify_pkcs7_signature(mod, modlen, mod + modlen, sig_len,
+	ret = verify_pkcs7_signature(mod, modlen, mod + modlen, sig_len,
 				      VERIFY_USE_SECONDARY_KEYRING,
 				      VERIFYING_MODULE_SIGNATURE,
 				      NULL, NULL);
+	if (ret == -ENOKEY && IS_ENABLED(CONFIG_INTEGRITY_PLATFORM_KEYRING)) {
+		ret = verify_pkcs7_signature(mod, modlen, mod + modlen, sig_len,
+				VERIFY_USE_PLATFORM_KEYRING,
+				VERIFYING_MODULE_SIGNATURE,
+				NULL, NULL);
+	}
+	return ret;
 }
diff --git a/scripts/tags.sh b/scripts/tags.sh
index db8ba411860a..2294fb0f17a9 100755
--- a/scripts/tags.sh
+++ b/scripts/tags.sh
@@ -16,6 +16,8 @@ fi
 ignore="$(echo "$RCS_FIND_IGNORE" | sed 's|\\||g' )"
 # tags and cscope files should also ignore MODVERSION *.mod.c files
 ignore="$ignore ( -name *.mod.c ) -prune -o"
+# RHEL tags and cscope should also ignore redhat/rpm
+ignore="$ignore ( -path redhat/rpm ) -prune -o"

 # Use make KBUILD_ABS_SRCTREE=1 {tags|cscope}
 # to force full paths for a non-O= build
diff --git a/security/integrity/platform_certs/load_uefi.c b/security/integrity/platform_certs/load_uefi.c
index f290f78c3f30..d3e7ae04f5be 100644
--- a/security/integrity/platform_certs/load_uefi.c
+++ b/security/integrity/platform_certs/load_uefi.c
@@ -46,7 +46,8 @@ static __init void *get_cert_list(efi_char16_t *name, efi_guid_t *guid,
 		return NULL;

 	if (*status != EFI_BUFFER_TOO_SMALL) {
-		pr_err("Couldn't get size: 0x%lx\n", *status);
+		pr_err("Couldn't get size: %s (0x%lx)\n",
+		       efi_status_to_str(*status), *status);
 		return NULL;
 	}

@@ -57,7 +58,8 @@ static __init void *get_cert_list(efi_char16_t *name, efi_guid_t *guid,
 	*status = efi.get_variable(name, guid, NULL, &lsize, db);
 	if (*status != EFI_SUCCESS) {
 		kfree(db);
-		pr_err("Error reading db var: 0x%lx\n", *status);
+		pr_err("Error reading db var: %s (0x%lx)\n",
+		       efi_status_to_str(*status), *status);
 		return NULL;
 	}

diff --git a/security/lockdown/Kconfig b/security/lockdown/Kconfig
index e84ddf484010..d0501353a4b9 100644
--- a/security/lockdown/Kconfig
+++ b/security/lockdown/Kconfig
@@ -16,6 +16,19 @@ config SECURITY_LOCKDOWN_LSM_EARLY
 	  subsystem is fully initialised. If enabled, lockdown will
 	  unconditionally be called before any other LSMs.

+config LOCK_DOWN_IN_EFI_SECURE_BOOT
+	bool "Lock down the kernel in EFI Secure Boot mode"
+	default n
+	depends on EFI && SECURITY_LOCKDOWN_LSM_EARLY
+	help
+	  UEFI Secure Boot provides a mechanism for ensuring that the firmware
+	  will only load signed bootloaders and kernels.  Secure boot mode may
+	  be determined from EFI variables provided by the system firmware if
+	  not indicated by the boot parameters.
+
+	  Enabling this option results in kernel lockdown being triggered if
+	  EFI Secure Boot is set.
+
 choice
 	prompt "Kernel default lockdown mode"
 	default LOCK_DOWN_KERNEL_FORCE_NONE
diff --git a/security/lockdown/lockdown.c b/security/lockdown/lockdown.c
index 87cbdc64d272..18555cf18da7 100644
--- a/security/lockdown/lockdown.c
+++ b/security/lockdown/lockdown.c
@@ -73,6 +73,7 @@ static int lockdown_is_locked_down(enum lockdown_reason what)

 static struct security_hook_list lockdown_hooks[] __lsm_ro_after_init = {
 	LSM_HOOK_INIT(locked_down, lockdown_is_locked_down),
+	LSM_HOOK_INIT(lock_kernel_down, lock_kernel_down),
 };

 static int __init lockdown_lsm_init(void)
diff --git a/security/security.c b/security/security.c
index 67264cb08fb3..85a0227bfac1 100644
--- a/security/security.c
+++ b/security/security.c
@@ -2599,6 +2599,12 @@ int security_locked_down(enum lockdown_reason what)
 }
 EXPORT_SYMBOL(security_locked_down);

+int security_lock_kernel_down(const char *where, enum lockdown_reason level)
+{
+	return call_int_hook(lock_kernel_down, 0, where, level);
+}
+EXPORT_SYMBOL(security_lock_kernel_down);
+
 #ifdef CONFIG_PERF_EVENTS
 int security_perf_event_open(struct perf_event_attr *attr, int type)
 {