diff options
Diffstat (limited to 'SOURCES/patch-6.9-redhat.patch')
| -rw-r--r-- | SOURCES/patch-6.9-redhat.patch | 1775 |
1 files changed, 1775 insertions, 0 deletions
diff --git a/SOURCES/patch-6.9-redhat.patch b/SOURCES/patch-6.9-redhat.patch new file mode 100644 index 0000000..d0d5c3b --- /dev/null +++ b/SOURCES/patch-6.9-redhat.patch @@ -0,0 +1,1775 @@ + Kconfig | 2 + + Kconfig.redhat | 17 +++ + Makefile | 12 ++ + arch/s390/include/asm/ipl.h | 1 + + arch/s390/kernel/ipl.c | 5 + + arch/s390/kernel/setup.c | 4 + + arch/x86/kernel/setup.c | 22 ++- + crypto/drbg.c | 18 ++- + crypto/rng.c | 149 ++++++++++++++++++--- + 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 | 122 +++++++++++++++++ + drivers/firmware/efi/Makefile | 1 + + drivers/firmware/efi/efi.c | 124 ++++++++++++----- + drivers/firmware/efi/secureboot.c | 38 ++++++ + drivers/hid/hid-rmi.c | 66 --------- + drivers/hwtracing/coresight/coresight-etm4x-core.c | 19 +++ + drivers/input/rmi4/rmi_driver.c | 124 ++++++++++------- + drivers/iommu/iommu.c | 22 +++ + drivers/pci/quirks.c | 24 ++++ + drivers/scsi/sd.c | 10 ++ + drivers/usb/core/hub.c | 7 + + include/linux/crypto.h | 1 + + include/linux/efi.h | 22 ++- + include/linux/lsm_hook_defs.h | 2 + + include/linux/random.h | 10 ++ + include/linux/rmi.h | 1 + + include/linux/security.h | 5 + + 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 | 12 ++ + 38 files changed, 762 insertions(+), 192 deletions(-) + +diff --git a/Kconfig b/Kconfig +index 745bc773f567..f57ff40109d7 100644 +--- a/Kconfig ++++ b/Kconfig +@@ -30,3 +30,5 @@ source "lib/Kconfig" + source "lib/Kconfig.debug" + + source "Documentation/Kconfig" ++ ++source "Kconfig.redhat" +diff --git a/Kconfig.redhat b/Kconfig.redhat +new file mode 100644 +index 000000000000..733a26bd887a +--- /dev/null ++++ b/Kconfig.redhat +@@ -0,0 +1,17 @@ ++# SPDX-License-Identifier: GPL-2.0-only ++# ++# Red Hat specific options ++# ++ ++menu "Red Hat options" ++ ++config RH_DISABLE_DEPRECATED ++ bool "Remove support for deprecated features" ++ help ++ Red Hat may choose to deprecate certain features in its kernels. ++ Enable this option to remove support for hardware that is no ++ longer supported. ++ ++ Unless you want a restricted kernel, say N here. ++ ++endmenu +diff --git a/Makefile b/Makefile +index 91f1d4d34e80..9f03c9efab0d 100644 +--- a/Makefile ++++ b/Makefile +@@ -22,6 +22,18 @@ $(if $(filter __%, $(MAKECMDGOALS)), \ + PHONY := __all + __all: + ++# Set RHEL variables ++# Note that this ifdef'ery is required to handle when building with ++# the O= mechanism (relocate the object file results) due to upstream ++# commit 67d7c302 which broke our RHEL include file ++ifneq ($(realpath source),) ++include $(realpath source)/Makefile.rhelver ++else ++ifneq ($(realpath Makefile.rhelver),) ++include Makefile.rhelver ++endif ++endif ++ + # We are using a recursive build, so we need to do a little thinking + # to get the ordering right. + # +diff --git a/arch/s390/include/asm/ipl.h b/arch/s390/include/asm/ipl.h +index b0d00032479d..afb9544fb007 100644 +--- a/arch/s390/include/asm/ipl.h ++++ b/arch/s390/include/asm/ipl.h +@@ -139,6 +139,7 @@ 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 469e8d3fbfbf..3ce742cd61c3 100644 +--- a/arch/s390/kernel/ipl.c ++++ b/arch/s390/kernel/ipl.c +@@ -2519,3 +2519,8 @@ 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 7ecd27c62d56..cad68dfba646 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> + +@@ -891,6 +892,9 @@ 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/kernel/setup.c b/arch/x86/kernel/setup.c +index e125e059e2c4..9cfd28e580e0 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> +@@ -901,6 +902,13 @@ 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 ++ + reserve_ibft_region(); + x86_init.resources.dmi_setup(); + +@@ -1063,19 +1071,7 @@ 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/crypto/drbg.c b/crypto/drbg.c +index 3addce90930c..730b03de596a 100644 +--- a/crypto/drbg.c ++++ b/crypto/drbg.c +@@ -1494,13 +1494,14 @@ static int drbg_generate(struct drbg_state *drbg, + * Wrapper around drbg_generate which can pull arbitrary long strings + * from the DRBG without hitting the maximum request limitation. + * +- * Parameters: see drbg_generate ++ * Parameters: see drbg_generate, except @reseed, which triggers reseeding + * Return codes: see drbg_generate -- if one drbg_generate request fails, + * the entire drbg_generate_long request fails + */ + static int drbg_generate_long(struct drbg_state *drbg, + unsigned char *buf, unsigned int buflen, +- struct drbg_string *addtl) ++ struct drbg_string *addtl, ++ bool reseed) + { + unsigned int len = 0; + unsigned int slice = 0; +@@ -1510,6 +1511,8 @@ static int drbg_generate_long(struct drbg_state *drbg, + slice = ((buflen - len) / drbg_max_request_bytes(drbg)); + chunk = slice ? drbg_max_request_bytes(drbg) : (buflen - len); + mutex_lock(&drbg->drbg_mutex); ++ if (reseed) ++ drbg->seeded = DRBG_SEED_STATE_UNSEEDED; + err = drbg_generate(drbg, buf + len, chunk, addtl); + mutex_unlock(&drbg->drbg_mutex); + if (0 > err) +@@ -1936,6 +1939,7 @@ static int drbg_kcapi_random(struct crypto_rng *tfm, + struct drbg_state *drbg = crypto_rng_ctx(tfm); + struct drbg_string *addtl = NULL; + struct drbg_string string; ++ int err; + + if (slen) { + /* linked list variable is now local to allow modification */ +@@ -1943,7 +1947,15 @@ static int drbg_kcapi_random(struct crypto_rng *tfm, + addtl = &string; + } + +- return drbg_generate_long(drbg, dst, dlen, addtl); ++ err = drbg_generate_long(drbg, dst, dlen, addtl, ++ (crypto_tfm_get_flags(crypto_rng_tfm(tfm)) & ++ CRYPTO_TFM_REQ_NEED_RESEED) == ++ CRYPTO_TFM_REQ_NEED_RESEED); ++ ++ crypto_tfm_clear_flags(crypto_rng_tfm(tfm), ++ CRYPTO_TFM_REQ_NEED_RESEED); ++ ++ return err; + } + + /* +diff --git a/crypto/rng.c b/crypto/rng.c +index 279dffdebf59..d24dd37205cd 100644 +--- a/crypto/rng.c ++++ b/crypto/rng.c +@@ -12,10 +12,13 @@ + #include <linux/atomic.h> + #include <linux/cryptouser.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/sched.h> ++#include <linux/sched/signal.h> + #include <linux/seq_file.h> + #include <linux/slab.h> + #include <linux/string.h> +@@ -23,7 +26,9 @@ + + #include "internal.h" + +-static DEFINE_MUTEX(crypto_default_rng_lock); ++static ____cacheline_aligned_in_smp DEFINE_MUTEX(crypto_reseed_rng_lock); ++static struct crypto_rng *crypto_reseed_rng; ++static ____cacheline_aligned_in_smp DEFINE_MUTEX(crypto_default_rng_lock); + struct crypto_rng *crypto_default_rng; + EXPORT_SYMBOL_GPL(crypto_default_rng); + static int crypto_default_rng_refcnt; +@@ -136,31 +141,37 @@ struct crypto_rng *crypto_alloc_rng(const char *alg_name, u32 type, u32 mask) + } + EXPORT_SYMBOL_GPL(crypto_alloc_rng); + +-int crypto_get_default_rng(void) ++static int crypto_get_rng(struct crypto_rng **rngp) + { + struct crypto_rng *rng; + int err; + +- mutex_lock(&crypto_default_rng_lock); +- if (!crypto_default_rng) { ++ if (!*rngp) { + rng = crypto_alloc_rng("stdrng", 0, 0); + err = PTR_ERR(rng); + if (IS_ERR(rng)) +- goto unlock; ++ return err; + + err = crypto_rng_reset(rng, NULL, crypto_rng_seedsize(rng)); + if (err) { + crypto_free_rng(rng); +- goto unlock; ++ return err; + } + +- crypto_default_rng = rng; ++ *rngp = rng; + } + +- crypto_default_rng_refcnt++; +- err = 0; ++ return 0; ++} ++ ++int crypto_get_default_rng(void) ++{ ++ int err; + +-unlock: ++ mutex_lock(&crypto_default_rng_lock); ++ err = crypto_get_rng(&crypto_default_rng); ++ if (!err) ++ crypto_default_rng_refcnt++; + mutex_unlock(&crypto_default_rng_lock); + + return err; +@@ -176,24 +187,33 @@ void crypto_put_default_rng(void) + EXPORT_SYMBOL_GPL(crypto_put_default_rng); + + #if defined(CONFIG_CRYPTO_RNG) || defined(CONFIG_CRYPTO_RNG_MODULE) +-int crypto_del_default_rng(void) ++static int crypto_del_rng(struct crypto_rng **rngp, int *refcntp, ++ struct mutex *lock) + { + int err = -EBUSY; + +- mutex_lock(&crypto_default_rng_lock); +- if (crypto_default_rng_refcnt) ++ mutex_lock(lock); ++ if (refcntp && *refcntp) + goto out; + +- crypto_free_rng(crypto_default_rng); +- crypto_default_rng = NULL; ++ crypto_free_rng(*rngp); ++ *rngp = NULL; + + err = 0; + + out: +- mutex_unlock(&crypto_default_rng_lock); ++ mutex_unlock(lock); + + return err; + } ++ ++int crypto_del_default_rng(void) ++{ ++ return crypto_del_rng(&crypto_default_rng, &crypto_default_rng_refcnt, ++ &crypto_default_rng_lock) ?: ++ crypto_del_rng(&crypto_reseed_rng, NULL, ++ &crypto_reseed_rng_lock); ++} + EXPORT_SYMBOL_GPL(crypto_del_default_rng); + #endif + +@@ -251,5 +271,102 @@ void crypto_unregister_rngs(struct rng_alg *algs, int count) + } + EXPORT_SYMBOL_GPL(crypto_unregister_rngs); + ++static ssize_t crypto_devrandom_read_iter(struct iov_iter *iter, bool reseed) ++{ ++ struct crypto_rng *rng; ++ u8 tmp[256]; ++ ssize_t ret; ++ ++ if (unlikely(!iov_iter_count(iter))) ++ return 0; ++ ++ if (reseed) { ++ u32 flags = 0; ++ ++ /* If reseeding is requested, acquire a lock on ++ * crypto_reseed_rng so it is not swapped out until ++ * the initial random bytes are generated. ++ * ++ * The algorithm implementation is also protected with ++ * a separate mutex (drbg->drbg_mutex) around the ++ * reseed-and-generate operation. ++ */ ++ mutex_lock(&crypto_reseed_rng_lock); ++ ++ /* If crypto_default_rng is not set, it will be seeded ++ * at creation in __crypto_get_default_rng and thus no ++ * reseeding is needed. ++ */ ++ if (crypto_reseed_rng) ++ flags |= CRYPTO_TFM_REQ_NEED_RESEED; ++ ++ ret = crypto_get_rng(&crypto_reseed_rng); ++ if (ret) { ++ mutex_unlock(&crypto_reseed_rng_lock); ++ return ret; ++ } ++ ++ rng = crypto_reseed_rng; ++ crypto_tfm_set_flags(crypto_rng_tfm(rng), flags); ++ } else { ++ ret = crypto_get_default_rng(); ++ if (ret) ++ return ret; ++ rng = crypto_default_rng; ++ } ++ ++ for (;;) { ++ size_t i, copied; ++ int err; ++ ++ i = min_t(size_t, iov_iter_count(iter), sizeof(tmp)); ++ err = crypto_rng_get_bytes(rng, tmp, i); ++ if (err) { ++ ret = err; ++ break; ++ } ++ ++ copied = copy_to_iter(tmp, i, iter); ++ ret += copied; ++ ++ if (!iov_iter_count(iter)) ++ break; ++ ++ if (need_resched()) { ++ if (signal_pending(current)) ++ break; ++ schedule(); ++ } ++ } ++ ++ if (reseed) ++ mutex_unlock(&crypto_reseed_rng_lock); ++ else ++ crypto_put_default_rng(); ++ memzero_explicit(tmp, sizeof(tmp)); ++ ++ return ret; ++} ++ ++static const struct random_extrng crypto_devrandom_rng = { ++ .extrng_read_iter = crypto_devrandom_read_iter, ++ .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 20d757687e3d..90a13f20f052 100644 +--- a/drivers/acpi/apei/hest.c ++++ b/drivers/acpi/apei/hest.c +@@ -142,6 +142,14 @@ static 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 1687483ff319..390b67f19181 100644 +--- a/drivers/acpi/irq.c ++++ b/drivers/acpi/irq.c +@@ -143,6 +143,7 @@ struct acpi_irq_parse_one_ctx { + unsigned int index; + unsigned long *res_flags; + struct irq_fwspec *fwspec; ++ bool skip_producer_check; + }; + + /** +@@ -216,7 +217,8 @@ 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; +@@ -252,8 +254,19 @@ 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_get_acpi_dev(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 d1464324de95..a3b2f99a2d78 100644 +--- a/drivers/acpi/scan.c ++++ b/drivers/acpi/scan.c +@@ -1798,6 +1798,15 @@ static bool acpi_device_enumeration_by_parent(struct acpi_device *device) + if (!acpi_match_device_ids(device, ignore_serial_bus_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 83431aae74d8..f2a9c0d644af 100644 +--- a/drivers/ata/libahci.c ++++ b/drivers/ata/libahci.c +@@ -729,6 +729,24 @@ 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 b0eedc4595b3..a9024c1dd68a 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" +@@ -5511,8 +5512,21 @@ 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 2597cb43f438..d860f4f6ba2c 100644 +--- a/drivers/char/random.c ++++ b/drivers/char/random.c +@@ -51,6 +51,7 @@ + #include <linux/completion.h> + #include <linux/uuid.h> + #include <linux/uaccess.h> ++#include <linux/rcupdate.h> + #include <linux/suspend.h> + #include <linux/siphash.h> + #include <linux/sched/isolation.h> +@@ -309,6 +310,11 @@ static void crng_fast_key_erasure(u8 key[CHACHA_KEY_SIZE], + memzero_explicit(first_block, sizeof(first_block)); + } + ++/* ++ * Hook for external RNG. ++ */ ++static const struct random_extrng __rcu *extrng; ++ + /* + * This function returns a ChaCha state that you may use for generating + * random data. It also returns up to 32 bytes on its own of random data +@@ -739,6 +745,9 @@ static void __cold _credit_init_bits(size_t bits) + } + + ++static const struct file_operations extrng_random_fops; ++static const struct file_operations extrng_urandom_fops; ++ + /********************************************************************** + * + * Entropy collection routines. +@@ -956,6 +965,19 @@ void __init add_bootloader_randomness(const void *buf, size_t len) + credit_init_bits(len * 8); + } + ++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); ++ + #if IS_ENABLED(CONFIG_VMGENID) + static BLOCKING_NOTIFIER_HEAD(vmfork_chain); + +@@ -1365,6 +1387,7 @@ SYSCALL_DEFINE3(getrandom, char __user *, ubuf, size_t, len, unsigned int, flags + { + struct iov_iter iter; + int ret; ++ const struct random_extrng *rng; + + if (flags & ~(GRND_NONBLOCK | GRND_RANDOM | GRND_INSECURE)) + return -EINVAL; +@@ -1376,6 +1399,21 @@ SYSCALL_DEFINE3(getrandom, char __user *, ubuf, size_t, len, unsigned int, flags + if ((flags & (GRND_INSECURE | GRND_RANDOM)) == (GRND_INSECURE | GRND_RANDOM)) + return -EINVAL; + ++ rcu_read_lock(); ++ rng = rcu_dereference(extrng); ++ if (rng && !try_module_get(rng->owner)) ++ rng = NULL; ++ rcu_read_unlock(); ++ ++ if (rng) { ++ ret = import_ubuf(ITER_DEST, ubuf, len, &iter); ++ if (unlikely(ret)) ++ return ret; ++ ret = rng->extrng_read_iter(&iter, !!(flags & GRND_RANDOM)); ++ module_put(rng->owner); ++ return ret; ++ } ++ + if (!crng_ready() && !(flags & GRND_INSECURE)) { + if (flags & GRND_NONBLOCK) + return -EAGAIN; +@@ -1396,6 +1434,12 @@ static __poll_t random_poll(struct file *file, poll_table *wait) + return crng_ready() ? EPOLLIN | EPOLLRDNORM : EPOLLOUT | EPOLLWRNORM; + } + ++static __poll_t extrng_poll(struct file *file, poll_table * wait) ++{ ++ /* extrng pool is always full, always read, no writes */ ++ return EPOLLIN | EPOLLRDNORM; ++} ++ + static ssize_t write_pool_user(struct iov_iter *iter) + { + u8 block[BLAKE2S_BLOCK_SIZE]; +@@ -1536,7 +1580,58 @@ 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_iter(struct kiocb *kiocb, struct iov_iter *iter) ++{ ++ return rcu_dereference_raw(extrng)->extrng_read_iter(iter, false); ++} ++ + const struct file_operations random_fops = { ++ .open = random_open, + .read_iter = random_read_iter, + .write_iter = random_write_iter, + .poll = random_poll, +@@ -1549,6 +1644,7 @@ const struct file_operations random_fops = { + }; + + const struct file_operations urandom_fops = { ++ .open = urandom_open, + .read_iter = urandom_read_iter, + .write_iter = random_write_iter, + .unlocked_ioctl = random_ioctl, +@@ -1559,6 +1655,32 @@ const struct file_operations urandom_fops = { + .splice_write = iter_file_splice_write, + }; + ++static const struct file_operations extrng_random_fops = { ++ .open = random_open, ++ .read_iter = extrng_read_iter, ++ .write_iter = random_write_iter, ++ .poll = extrng_poll, ++ .unlocked_ioctl = random_ioctl, ++ .compat_ioctl = compat_ptr_ioctl, ++ .fasync = random_fasync, ++ .llseek = noop_llseek, ++ .release = extrng_release, ++ .splice_read = copy_splice_read, ++ .splice_write = iter_file_splice_write, ++}; ++ ++static const struct file_operations extrng_urandom_fops = { ++ .open = urandom_open, ++ .read_iter = extrng_read_iter, ++ .write_iter = random_write_iter, ++ .unlocked_ioctl = random_ioctl, ++ .compat_ioctl = compat_ptr_ioctl, ++ .fasync = random_fasync, ++ .llseek = noop_llseek, ++ .release = extrng_release, ++ .splice_read = copy_splice_read, ++ .splice_write = iter_file_splice_write, ++}; + + /******************************************************************** + * +diff --git a/drivers/firmware/efi/Makefile b/drivers/firmware/efi/Makefile +index a2d0009560d0..4f3486e6a84b 100644 +--- a/drivers/firmware/efi/Makefile ++++ b/drivers/firmware/efi/Makefile +@@ -25,6 +25,7 @@ subdir-$(CONFIG_EFI_STUB) += libstub + obj-$(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 fdf07dd6f459..cfd2b58a3494 100644 +--- a/drivers/firmware/efi/efi.c ++++ b/drivers/firmware/efi/efi.c +@@ -33,6 +33,7 @@ + #include <linux/memblock.h> + #include <linux/security.h> + #include <linux/notifier.h> ++#include <linux/bsearch.h> + + #include <asm/early_ioremap.h> + +@@ -993,40 +994,101 @@ int efi_mem_type(unsigned long phys_addr) + return -EINVAL; + } + ++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; + } + EXPORT_SYMBOL_GPL(efi_status_to_err); + +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 d4af17fdba46..154f0403cbf4 100644 +--- a/drivers/hid/hid-rmi.c ++++ b/drivers/hid/hid-rmi.c +@@ -321,21 +321,12 @@ 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; + +- pm_wakeup_event(hdev->dev.parent, 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; + } + +@@ -589,56 +580,6 @@ 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; +@@ -711,18 +652,11 @@ 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 a0bdfabddbc6..cd824ceebd0f 100644 +--- a/drivers/hwtracing/coresight/coresight-etm4x-core.c ++++ b/drivers/hwtracing/coresight/coresight-etm4x-core.c +@@ -10,6 +10,7 @@ + #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> +@@ -2344,6 +2345,16 @@ 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 = { +@@ -2413,6 +2424,11 @@ 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 */ +@@ -2439,6 +2455,9 @@ 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 ef9ea295f9e0..0103334e8f32 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: +@@ -978,6 +994,8 @@ static int rmi_driver_remove(struct device *dev) + + rmi_disable_irq(rmi_dev, false); + ++ cancel_work_sync(&data->attn_work); ++ + rmi_f34_remove_sysfs(rmi_dev); + rmi_free_function_list(rmi_dev); + +@@ -1223,9 +1241,15 @@ 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 659a77f7bb83..e8dc1fd50e21 100644 +--- a/drivers/iommu/iommu.c ++++ b/drivers/iommu/iommu.c +@@ -8,6 +8,7 @@ + + #include <linux/amba/bus.h> + #include <linux/device.h> ++#include <linux/dmi.h> + #include <linux/kernel.h> + #include <linux/bits.h> + #include <linux/bug.h> +@@ -2913,6 +2914,27 @@ int iommu_dev_disable_feature(struct device *dev, enum iommu_dev_features feat) + } + EXPORT_SYMBOL_GPL(iommu_dev_disable_feature); + ++#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 ++ + /** + * iommu_setup_default_domain - Set the default_domain for the group + * @group: Group to change +diff --git a/drivers/pci/quirks.c b/drivers/pci/quirks.c +index eff7f5df08e2..b58145ce7775 100644 +--- a/drivers/pci/quirks.c ++++ b/drivers/pci/quirks.c +@@ -4433,6 +4433,30 @@ 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/scsi/sd.c b/drivers/scsi/sd.c +index caac482fff2f..d3d59612ea93 100644 +--- a/drivers/scsi/sd.c ++++ b/drivers/scsi/sd.c +@@ -119,6 +119,14 @@ static const char *sd_cache_types[] = { + "write back, no read (daft)" + }; + ++static const char *sd_probe_types[] = { "async", "sync" }; ++ ++static char sd_probe_type[6] = "async"; ++module_param_string(probe, sd_probe_type, sizeof(sd_probe_type), ++ S_IRUGO|S_IWUSR); ++MODULE_PARM_DESC(probe, "async or sync. Setting to 'sync' disables asynchronous " ++ "device number assignments (sda, sdb, ...)."); ++ + static void sd_set_flush_flag(struct scsi_disk *sdkp) + { + bool wc = false, fua = false; +@@ -4251,6 +4259,8 @@ static int __init init_sd(void) + goto err_out_class; + } + ++ if (!strcmp(sd_probe_type, "sync")) ++ sd_template.gendrv.probe_type = PROBE_FORCE_SYNCHRONOUS; + err = scsi_register_driver(&sd_template.gendrv); + if (err) + goto err_out_driver; +diff --git a/drivers/usb/core/hub.c b/drivers/usb/core/hub.c +index 008053039875..f948a5c96006 100644 +--- a/drivers/usb/core/hub.c ++++ b/drivers/usb/core/hub.c +@@ -5845,6 +5845,13 @@ 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/crypto.h b/include/linux/crypto.h +index b164da5e129e..59021b8609a7 100644 +--- a/include/linux/crypto.h ++++ b/include/linux/crypto.h +@@ -133,6 +133,7 @@ + #define CRYPTO_TFM_REQ_FORBID_WEAK_KEYS 0x00000100 + #define CRYPTO_TFM_REQ_MAY_SLEEP 0x00000200 + #define CRYPTO_TFM_REQ_MAY_BACKLOG 0x00000400 ++#define CRYPTO_TFM_REQ_NEED_RESEED 0x00000800 + + /* + * Miscellaneous stuff. +diff --git a/include/linux/efi.h b/include/linux/efi.h +index d59b0947fba0..8b1e2e71d485 100644 +--- a/include/linux/efi.h ++++ b/include/linux/efi.h +@@ -45,6 +45,8 @@ struct screen_info; + #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 */ +@@ -872,6 +874,14 @@ static inline int efi_range_is_wc(unsigned long start, unsigned long len) + #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 + /* +@@ -883,6 +893,8 @@ 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) +@@ -904,6 +916,8 @@ 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; +@@ -918,6 +932,7 @@ static inline void efi_find_mirror(void) {} + #endif + + extern int efi_status_to_err(efi_status_t status); ++extern const char *efi_status_to_str(efi_status_t status); + + /* + * Variable Attributes +@@ -1134,13 +1149,6 @@ static inline bool efi_runtime_disabled(void) { return true; } + extern void efi_call_virt_check_flags(unsigned long flags, const void *caller); + 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 334e00efbde4..5c962e31ffe5 100644 +--- a/include/linux/lsm_hook_defs.h ++++ b/include/linux/lsm_hook_defs.h +@@ -436,6 +436,8 @@ LSM_HOOK(int, 0, bpf_token_capable, const struct bpf_token *token, int cap) + #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/random.h b/include/linux/random.h +index b0a940af4fff..8a52424fd0d5 100644 +--- a/include/linux/random.h ++++ b/include/linux/random.h +@@ -9,6 +9,13 @@ + + #include <uapi/linux/random.h> + ++struct iov_iter; ++ ++struct random_extrng { ++ ssize_t (*extrng_read_iter)(struct iov_iter *iter, bool reseed); ++ struct module *owner; ++}; ++ + struct notifier_block; + + void add_device_randomness(const void *buf, size_t len); +@@ -157,6 +164,9 @@ int random_prepare_cpu(unsigned int cpu); + int random_online_cpu(unsigned int cpu); + #endif + ++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; + #endif +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 41a8f667bdfa..e2aebf520337 100644 +--- a/include/linux/security.h ++++ b/include/linux/security.h +@@ -507,6 +507,7 @@ 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); + int lsm_fill_user_ctx(struct lsm_ctx __user *uctx, u32 *uctx_len, + void *val, size_t val_len, u64 id, u64 flags); + #else /* CONFIG_SECURITY */ +@@ -1477,6 +1478,10 @@ 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; ++} + static inline int lsm_fill_user_ctx(struct lsm_ctx __user *uctx, + u32 *uctx_len, void *val, size_t val_len, + u64 id, u64 flags) +diff --git a/kernel/module/signing.c b/kernel/module/signing.c +index a2ff4242e623..f0d2be1ee4f1 100644 +--- a/kernel/module/signing.c ++++ b/kernel/module/signing.c +@@ -61,10 +61,17 @@ 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; + } + + int module_sig_check(struct load_info *info, int flags) +diff --git a/scripts/tags.sh b/scripts/tags.sh +index 191e0461d6d5..e6f418b3e948 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" + + # ignore arbitrary directories + if [ -n "${IGNORE_DIRS}" ]; then +diff --git a/security/integrity/platform_certs/load_uefi.c b/security/integrity/platform_certs/load_uefi.c +index d1fdd113450a..182e8090cfe8 100644 +--- a/security/integrity/platform_certs/load_uefi.c ++++ b/security/integrity/platform_certs/load_uefi.c +@@ -74,7 +74,8 @@ 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; + } + +@@ -85,7 +86,8 @@ 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 cd84d8ea1dfb..e4c70a0312bc 100644 +--- a/security/lockdown/lockdown.c ++++ b/security/lockdown/lockdown.c +@@ -74,6 +74,7 @@ static int lockdown_is_locked_down(enum lockdown_reason what) + + static struct security_hook_list lockdown_hooks[] __ro_after_init = { + LSM_HOOK_INIT(locked_down, lockdown_is_locked_down), ++ LSM_HOOK_INIT(lock_kernel_down, lock_kernel_down), + }; + + const struct lsm_id lockdown_lsmid = { +diff --git a/security/security.c b/security/security.c +index 0a9a0ac3f266..a5cfc42f7c33 100644 +--- a/security/security.c ++++ b/security/security.c +@@ -5567,6 +5567,18 @@ int security_locked_down(enum lockdown_reason what) + } + EXPORT_SYMBOL(security_locked_down); + ++/** ++ * security_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) ++ */ ++int security_lock_kernel_down(const char *where, enum lockdown_reason level) ++{ ++ return call_int_hook(lock_kernel_down, where, level); ++} ++EXPORT_SYMBOL(security_lock_kernel_down); ++ + #ifdef CONFIG_PERF_EVENTS + /** + * security_perf_event_open() - Check if a perf event open is allowed |