diff --git a/MAINTAINERS b/MAINTAINERS
index db814a89599ce8141cc5b92603623946d5bee325..007d05acbb5f9311fbefcf2fb5b2c1bab5aaf3ae 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -4583,6 +4583,13 @@ M: Peter Jones <pjones@redhat.com>
S: Maintained
F: drivers/video/fbdev/efifb.c
+EFI TEST DRIVER
+L: linux-efi@vger.kernel.org
+M: Ivan Hu <ivan.hu@canonical.com>
+M: Matt Fleming <matt@codeblueprint.co.uk>
+S: Maintained
+F: drivers/firmware/efi/test/
+
EFS FILESYSTEM
W: http://aeschi.ch.eu.org/efs/
S: Orphan
diff --git a/drivers/firmware/efi/Kconfig b/drivers/firmware/efi/Kconfig
index 6394152f648f4f0262a4c5be42a7ae0cb7aaa7a8..c981be17d3c0af67a50bcede0eb32b66605d5ca6 100644
--- a/drivers/firmware/efi/Kconfig
+++ b/drivers/firmware/efi/Kconfig
@@ -112,6 +112,23 @@ config EFI_CAPSULE_LOADER
Most users should say N.
+config EFI_TEST
+ tristate "EFI Runtime Service Tests Support"
+ depends on EFI
+ default n
+ help
+ This driver uses the efi.<service> function pointers directly instead
+ of going through the efivar API, because it is not trying to test the
+ kernel subsystem, just for testing the UEFI runtime service
+ interfaces which are provided by the firmware. This driver is used
+ by the Firmware Test Suite (FWTS) for testing the UEFI runtime
+ interfaces readiness of the firmware.
+ Details for FWTS are available from:
+ <https://wiki.ubuntu.com/FirmwareTestSuite>
+
+ Say Y here to enable the runtime services support via /dev/efi_test.
+ If unsure, say N.
+
endmenu
config UEFI_CPER
diff --git a/drivers/firmware/efi/Makefile b/drivers/firmware/efi/Makefile
index b3f5e2adc49f0c79c9358d6057deb4376f0a69ff..c8a439f6d7152c9cd90300d74b361ec4277bf9c7 100644
--- a/drivers/firmware/efi/Makefile
+++ b/drivers/firmware/efi/Makefile
@@ -20,6 +20,7 @@ obj-$(CONFIG_EFI_RUNTIME_WRAPPERS) += runtime-wrappers.o
obj-$(CONFIG_EFI_STUB) += libstub/
obj-$(CONFIG_EFI_FAKE_MEMMAP) += fake_mem.o
obj-$(CONFIG_EFI_BOOTLOADER_CONTROL) += efibc.o
+obj-$(CONFIG_EFI_TEST) += test/
arm-obj-$(CONFIG_EFI) := arm-init.o arm-runtime.o
obj-$(CONFIG_ARM) += $(arm-obj-y)
diff --git a/drivers/firmware/efi/test/Makefile b/drivers/firmware/efi/test/Makefile
new file mode 100644
index 0000000000000000000000000000000000000000..bcd4577d40e6108b3956df3b1f42e33f549b31f1
--- /dev/null
+++ b/drivers/firmware/efi/test/Makefile
@@ -0,0 +1 @@
+obj-$(CONFIG_EFI_TEST) += efi_test.o
diff --git a/drivers/firmware/efi/test/efi_test.c b/drivers/firmware/efi/test/efi_test.c
new file mode 100644
index 0000000000000000000000000000000000000000..f61bb52be318911d4c18f91ad9c15c97f4b29b20
--- /dev/null
+++ b/drivers/firmware/efi/test/efi_test.c
@@ -0,0 +1,749 @@
+/*
+ * EFI Test Driver for Runtime Services
+ *
+ * Copyright(C) 2012-2016 Canonical Ltd.
+ *
+ * This driver exports EFI runtime services interfaces into userspace, which
+ * allow to use and test UEFI runtime services provided by firmware.
+ *
+ */
+
+#include <linux/version.h>
+#include <linux/miscdevice.h>
+#include <linux/module.h>
+#include <linux/init.h>
+#include <linux/proc_fs.h>
+#include <linux/efi.h>
+#include <linux/slab.h>
+#include <linux/uaccess.h>
+
+#include "efi_test.h"
+
+MODULE_AUTHOR("Ivan Hu <ivan.hu@canonical.com>");
+MODULE_DESCRIPTION("EFI Test Driver");
+MODULE_LICENSE("GPL");
+
+/*
+ * Count the bytes in 'str', including the terminating NULL.
+ *
+ * Note this function returns the number of *bytes*, not the number of
+ * ucs2 characters.
+ */
+static inline size_t user_ucs2_strsize(efi_char16_t __user *str)
+{
+ efi_char16_t *s = str, c;
+ size_t len;
+
+ if (!str)
+ return 0;
+
+ /* Include terminating NULL */
+ len = sizeof(efi_char16_t);
+
+ if (get_user(c, s++)) {
+ /* Can't read userspace memory for size */
+ return 0;
+ }
+
+ while (c != 0) {
+ if (get_user(c, s++)) {
+ /* Can't read userspace memory for size */
+ return 0;
+ }
+ len += sizeof(efi_char16_t);
+ }
+ return len;
+}
+
+/*
+ * Allocate a buffer and copy a ucs2 string from user space into it.
+ */
+static inline int
+copy_ucs2_from_user_len(efi_char16_t **dst, efi_char16_t __user *src,
+ size_t len)
+{
+ efi_char16_t *buf;
+
+ if (!src) {
+ *dst = NULL;
+ return 0;
+ }
+
+ if (!access_ok(VERIFY_READ, src, 1))
+ return -EFAULT;
+
+ buf = kmalloc(len, GFP_KERNEL);
+ if (!buf) {
+ *dst = NULL;
+ return -ENOMEM;
+ }
+ *dst = buf;
+
+ if (copy_from_user(*dst, src, len)) {
+ kfree(buf);
+ return -EFAULT;
+ }
+
+ return 0;
+}
+
+/*
+ * Count the bytes in 'str', including the terminating NULL.
+ *
+ * Just a wrap for user_ucs2_strsize
+ */
+static inline int
+get_ucs2_strsize_from_user(efi_char16_t __user *src, size_t *len)
+{
+ if (!access_ok(VERIFY_READ, src, 1))
+ return -EFAULT;
+
+ *len = user_ucs2_strsize(src);
+ if (*len == 0)
+ return -EFAULT;
+
+ return 0;
+}
+
+/*
+ * Calculate the required buffer allocation size and copy a ucs2 string
+ * from user space into it.
+ *
+ * This function differs from copy_ucs2_from_user_len() because it
+ * calculates the size of the buffer to allocate by taking the length of
+ * the string 'src'.
+ *
+ * If a non-zero value is returned, the caller MUST NOT access 'dst'.
+ *
+ * It is the caller's responsibility to free 'dst'.
+ */
+static inline int
+copy_ucs2_from_user(efi_char16_t **dst, efi_char16_t __user *src)
+{
+ size_t len;
+
+ if (!access_ok(VERIFY_READ, src, 1))
+ return -EFAULT;
+
+ len = user_ucs2_strsize(src);
+ if (len == 0)
+ return -EFAULT;
+ return copy_ucs2_from_user_len(dst, src, len);
+}
+
+/*
+ * Copy a ucs2 string to a user buffer.
+ *
+ * This function is a simple wrapper around copy_to_user() that does
+ * nothing if 'src' is NULL, which is useful for reducing the amount of
+ * NULL checking the caller has to do.
+ *
+ * 'len' specifies the number of bytes to copy.
+ */
+static inline int
+copy_ucs2_to_user_len(efi_char16_t __user *dst, efi_char16_t *src, size_t len)
+{
+ if (!src)
+ return 0;
+
+ if (!access_ok(VERIFY_WRITE, dst, 1))
+ return -EFAULT;
+
+ return copy_to_user(dst, src, len);
+}
+
+static long efi_runtime_get_variable(unsigned long arg)
+{
+ struct efi_getvariable __user *getvariable_user;
+ struct efi_getvariable getvariable;
+ unsigned long datasize, prev_datasize, *dz;
+ efi_guid_t vendor_guid, *vd = NULL;
+ efi_status_t status;
+ efi_char16_t *name = NULL;
+ u32 attr, *at;
+ void *data = NULL;
+ int rv = 0;
+
+ getvariable_user = (struct efi_getvariable __user *)arg;
+
+ if (copy_from_user(&getvariable, getvariable_user,
+ sizeof(getvariable)))
+ return -EFAULT;
+ if (getvariable.data_size &&
+ get_user(datasize, getvariable.data_size))
+ return -EFAULT;
+ if (getvariable.vendor_guid) {
+ if (copy_from_user(&vendor_guid, getvariable.vendor_guid,
+ sizeof(vendor_guid)))
+ return -EFAULT;
+ vd = &vendor_guid;
+ }
+
+ if (getvariable.variable_name) {
+ rv = copy_ucs2_from_user(&name, getvariable.variable_name);
+ if (rv)
+ return rv;
+ }
+
+ at = getvariable.attributes ? &attr : NULL;
+ dz = getvariable.data_size ? &datasize : NULL;
+
+ if (getvariable.data_size && getvariable.data) {
+ data = kmalloc(datasize, GFP_KERNEL);
+ if (!data) {
+ kfree(name);
+ return -ENOMEM;
+ }
+ }
+
+ prev_datasize = datasize;
+ status = efi.get_variable(name, vd, at, dz, data);
+ kfree(name);
+
+ if (put_user(status, getvariable.status)) {
+ rv = -EFAULT;
+ goto out;
+ }
+
+ if (status != EFI_SUCCESS) {
+ if (status == EFI_BUFFER_TOO_SMALL) {
+ if (dz && put_user(datasize, getvariable.data_size)) {
+ rv = -EFAULT;
+ goto out;
+ }
+ }
+ rv = -EINVAL;
+ goto out;
+ }
+
+ if (prev_datasize < datasize) {
+ rv = -EINVAL;
+ goto out;
+ }
+
+ if (data) {
+ if (copy_to_user(getvariable.data, data, datasize)) {
+ rv = -EFAULT;
+ goto out;
+ }
+ }
+
+ if (at && put_user(attr, getvariable.attributes)) {
+ rv = -EFAULT;
+ goto out;
+ }
+
+ if (dz && put_user(datasize, getvariable.data_size))
+ rv = -EFAULT;
+
+out:
+ kfree(data);
+ return rv;
+
+}
+
+static long efi_runtime_set_variable(unsigned long arg)
+{
+ struct efi_setvariable __user *setvariable_user;
+ struct efi_setvariable setvariable;
+ efi_guid_t vendor_guid;
+ efi_status_t status;
+ efi_char16_t *name = NULL;
+ void *data;
+ int rv = 0;
+
+ setvariable_user = (struct efi_setvariable __user *)arg;
+
+ if (copy_from_user(&setvariable, setvariable_user, sizeof(setvariable)))
+ return -EFAULT;
+ if (copy_from_user(&vendor_guid, setvariable.vendor_guid,
+ sizeof(vendor_guid)))
+ return -EFAULT;
+
+ if (setvariable.variable_name) {
+ rv = copy_ucs2_from_user(&name, setvariable.variable_name);
+ if (rv)
+ return rv;
+ }
+
+ data = kmalloc(setvariable.data_size, GFP_KERNEL);
+ if (!data) {
+ kfree(name);
+ return -ENOMEM;
+ }
+ if (copy_from_user(data, setvariable.data, setvariable.data_size)) {
+ rv = -EFAULT;
+ goto out;
+ }
+
+ status = efi.set_variable(name, &vendor_guid,
+ setvariable.attributes,
+ setvariable.data_size, data);
+
+ if (put_user(status, setvariable.status)) {
+ rv = -EFAULT;
+ goto out;
+ }
+
+ rv = status == EFI_SUCCESS ? 0 : -EINVAL;
+
+out:
+ kfree(data);
+ kfree(name);
+
+ return rv;
+}
+
+static long efi_runtime_get_time(unsigned long arg)
+{
+ struct efi_gettime __user *gettime_user;
+ struct efi_gettime gettime;
+ efi_status_t status;
+ efi_time_cap_t cap;
+ efi_time_t efi_time;
+
+ gettime_user = (struct efi_gettime __user *)arg;
+ if (copy_from_user(&gettime, gettime_user, sizeof(gettime)))
+ return -EFAULT;
+
+ status = efi.get_time(gettime.time ? &efi_time : NULL,
+ gettime.capabilities ? &cap : NULL);
+
+ if (put_user(status, gettime.status))
+ return -EFAULT;
+
+ if (status != EFI_SUCCESS)
+ return -EINVAL;
+
+ if (gettime.capabilities) {
+ efi_time_cap_t __user *cap_local;
+
+ cap_local = (efi_time_cap_t *)gettime.capabilities;
+ if (put_user(cap.resolution, &(cap_local->resolution)) ||
+ put_user(cap.accuracy, &(cap_local->accuracy)) ||
+ put_user(cap.sets_to_zero, &(cap_local->sets_to_zero)))
+ return -EFAULT;
+ }
+ if (gettime.time) {
+ if (copy_to_user(gettime.time, &efi_time, sizeof(efi_time_t)))
+ return -EFAULT;
+ }
+
+ return 0;
+}
+
+static long efi_runtime_set_time(unsigned long arg)
+{
+ struct efi_settime __user *settime_user;
+ struct efi_settime settime;
+ efi_status_t status;
+ efi_time_t efi_time;
+
+ settime_user = (struct efi_settime __user *)arg;
+ if (copy_from_user(&settime, settime_user, sizeof(settime)))
+ return -EFAULT;
+ if (copy_from_user(&efi_time, settime.time,
+ sizeof(efi_time_t)))
+ return -EFAULT;
+ status = efi.set_time(&efi_time);
+
+ if (put_user(status, settime.status))
+ return -EFAULT;
+
+ return status == EFI_SUCCESS ? 0 : -EINVAL;
+}
+
+static long efi_runtime_get_waketime(unsigned long arg)
+{
+ struct efi_getwakeuptime __user *getwakeuptime_user;
+ struct efi_getwakeuptime getwakeuptime;
+ efi_bool_t enabled, pending;
+ efi_status_t status;
+ efi_time_t efi_time;
+
+ getwakeuptime_user = (struct efi_getwakeuptime __user *)arg;
+ if (copy_from_user(&getwakeuptime, getwakeuptime_user,
+ sizeof(getwakeuptime)))
+ return -EFAULT;
+
+ status = efi.get_wakeup_time(
+ getwakeuptime.enabled ? (efi_bool_t *)&enabled : NULL,
+ getwakeuptime.pending ? (efi_bool_t *)&pending : NULL,
+ getwakeuptime.time ? &efi_time : NULL);
+
+ if (put_user(status, getwakeuptime.status))
+ return -EFAULT;
+
+ if (status != EFI_SUCCESS)
+ return -EINVAL;
+
+ if (getwakeuptime.enabled && put_user(enabled,
+ getwakeuptime.enabled))
+ return -EFAULT;
+
+ if (getwakeuptime.time) {
+ if (copy_to_user(getwakeuptime.time, &efi_time,
+ sizeof(efi_time_t)))
+ return -EFAULT;
+ }
+
+ return 0;
+}
+
+static long efi_runtime_set_waketime(unsigned long arg)
+{
+ struct efi_setwakeuptime __user *setwakeuptime_user;
+ struct efi_setwakeuptime setwakeuptime;
+ efi_bool_t enabled;
+ efi_status_t status;
+ efi_time_t efi_time;
+
+ setwakeuptime_user = (struct efi_setwakeuptime __user *)arg;
+
+ if (copy_from_user(&setwakeuptime, setwakeuptime_user,
+ sizeof(setwakeuptime)))
+ return -EFAULT;
+
+ enabled = setwakeuptime.enabled;
+ if (setwakeuptime.time) {
+ if (copy_from_user(&efi_time, setwakeuptime.time,
+ sizeof(efi_time_t)))
+ return -EFAULT;
+
+ status = efi.set_wakeup_time(enabled, &efi_time);
+ } else
+ status = efi.set_wakeup_time(enabled, NULL);
+
+ if (put_user(status, setwakeuptime.status))
+ return -EFAULT;
+
+ return status == EFI_SUCCESS ? 0 : -EINVAL;
+}
+
+static long efi_runtime_get_nextvariablename(unsigned long arg)
+{
+ struct efi_getnextvariablename __user *getnextvariablename_user;
+ struct efi_getnextvariablename getnextvariablename;
+ unsigned long name_size, prev_name_size = 0, *ns = NULL;
+ efi_status_t status;
+ efi_guid_t *vd = NULL;
+ efi_guid_t vendor_guid;
+ efi_char16_t *name = NULL;
+ int rv;
+
+ getnextvariablename_user = (struct efi_getnextvariablename __user *)arg;
+
+ if (copy_from_user(&getnextvariablename, getnextvariablename_user,
+ sizeof(getnextvariablename)))
+ return -EFAULT;
+
+ if (getnextvariablename.variable_name_size) {
+ if (get_user(name_size, getnextvariablename.variable_name_size))
+ return -EFAULT;
+ ns = &name_size;
+ prev_name_size = name_size;
+ }
+
+ if (getnextvariablename.vendor_guid) {
+ if (copy_from_user(&vendor_guid,
+ getnextvariablename.vendor_guid,
+ sizeof(vendor_guid)))
+ return -EFAULT;
+ vd = &vendor_guid;
+ }
+
+ if (getnextvariablename.variable_name) {
+ size_t name_string_size = 0;
+
+ rv = get_ucs2_strsize_from_user(
+ getnextvariablename.variable_name,
+ &name_string_size);
+ if (rv)
+ return rv;
+ /*
+ * The name_size may be smaller than the real buffer size where
+ * variable name located in some use cases. The most typical
+ * case is passing a 0 to get the required buffer size for the
+ * 1st time call. So we need to copy the content from user
+ * space for at least the string size of variable name, or else
+ * the name passed to UEFI may not be terminated as we expected.
+ */
+ rv = copy_ucs2_from_user_len(&name,
+ getnextvariablename.variable_name,
+ prev_name_size > name_string_size ?
+ prev_name_size : name_string_size);
+ if (rv)
+ return rv;
+ }
+
+ status = efi.get_next_variable(ns, name, vd);
+
+ if (put_user(status, getnextvariablename.status)) {
+ rv = -EFAULT;
+ goto out;
+ }
+
+ if (status != EFI_SUCCESS) {
+ if (status == EFI_BUFFER_TOO_SMALL) {
+ if (ns && put_user(*ns,
+ getnextvariablename.variable_name_size)) {
+ rv = -EFAULT;
+ goto out;
+ }
+ }
+ rv = -EINVAL;
+ goto out;
+ }
+
+ if (name) {
+ if (copy_ucs2_to_user_len(getnextvariablename.variable_name,
+ name, prev_name_size)) {
+ rv = -EFAULT;
+ goto out;
+ }
+ }
+
+ if (ns) {
+ if (put_user(*ns, getnextvariablename.variable_name_size)) {
+ rv = -EFAULT;
+ goto out;
+ }
+ }
+
+ if (vd) {
+ if (copy_to_user(getnextvariablename.vendor_guid, vd,
+ sizeof(efi_guid_t)))
+ rv = -EFAULT;
+ }
+
+out:
+ kfree(name);
+ return rv;
+}
+
+static long efi_runtime_get_nexthighmonocount(unsigned long arg)
+{
+ struct efi_getnexthighmonotoniccount __user *getnexthighmonocount_user;
+ struct efi_getnexthighmonotoniccount getnexthighmonocount;
+ efi_status_t status;
+ u32 count;
+
+ getnexthighmonocount_user = (struct
+ efi_getnexthighmonotoniccount __user *)arg;
+
+ if (copy_from_user(&getnexthighmonocount,
+ getnexthighmonocount_user,
+ sizeof(getnexthighmonocount)))
+ return -EFAULT;
+
+ status = efi.get_next_high_mono_count(
+ getnexthighmonocount.high_count ? &count : NULL);
+
+ if (put_user(status, getnexthighmonocount.status))
+ return -EFAULT;
+
+ if (status != EFI_SUCCESS)
+ return -EINVAL;
+
+ if (getnexthighmonocount.high_count &&
+ put_user(count, getnexthighmonocount.high_count))
+ return -EFAULT;
+
+ return 0;
+}
+
+static long efi_runtime_query_variableinfo(unsigned long arg)
+{
+ struct efi_queryvariableinfo __user *queryvariableinfo_user;
+ struct efi_queryvariableinfo queryvariableinfo;
+ efi_status_t status;
+ u64 max_storage, remaining, max_size;
+
+ queryvariableinfo_user = (struct efi_queryvariableinfo __user *)arg;
+
+ if (copy_from_user(&queryvariableinfo, queryvariableinfo_user,
+ sizeof(queryvariableinfo)))
+ return -EFAULT;
+
+ status = efi.query_variable_info(queryvariableinfo.attributes,
+ &max_storage, &remaining, &max_size);
+
+ if (put_user(status, queryvariableinfo.status))
+ return -EFAULT;
+
+ if (status != EFI_SUCCESS)
+ return -EINVAL;
+
+ if (put_user(max_storage,
+ queryvariableinfo.maximum_variable_storage_size))
+ return -EFAULT;
+
+ if (put_user(remaining,
+ queryvariableinfo.remaining_variable_storage_size))
+ return -EFAULT;
+
+ if (put_user(max_size, queryvariableinfo.maximum_variable_size))
+ return -EFAULT;
+
+ return 0;
+}
+
+static long efi_runtime_query_capsulecaps(unsigned long arg)
+{
+ struct efi_querycapsulecapabilities __user *qcaps_user;
+ struct efi_querycapsulecapabilities qcaps;
+ efi_capsule_header_t *capsules;
+ efi_status_t status;
+ u64 max_size;
+ int i, reset_type;
+ int rv = 0;
+
+ qcaps_user = (struct efi_querycapsulecapabilities __user *)arg;
+
+ if (copy_from_user(&qcaps, qcaps_user, sizeof(qcaps)))
+ return -EFAULT;
+
+ capsules = kcalloc(qcaps.capsule_count + 1,
+ sizeof(efi_capsule_header_t), GFP_KERNEL);
+ if (!capsules)
+ return -ENOMEM;
+
+ for (i = 0; i < qcaps.capsule_count; i++) {
+ efi_capsule_header_t *c;
+ /*
+ * We cannot dereference qcaps.capsule_header_array directly to
+ * obtain the address of the capsule as it resides in the
+ * user space
+ */
+ if (get_user(c, qcaps.capsule_header_array + i)) {
+ rv = -EFAULT;
+ goto out;
+ }
+ if (copy_from_user(&capsules[i], c,
+ sizeof(efi_capsule_header_t))) {
+ rv = -EFAULT;
+ goto out;
+ }
+ }
+
+ qcaps.capsule_header_array = &capsules;
+
+ status = efi.query_capsule_caps((efi_capsule_header_t **)
+ qcaps.capsule_header_array,
+ qcaps.capsule_count,
+ &max_size, &reset_type);
+
+ if (put_user(status, qcaps.status)) {
+ rv = -EFAULT;
+ goto out;
+ }
+
+ if (status != EFI_SUCCESS) {
+ rv = -EINVAL;
+ goto out;
+ }
+
+ if (put_user(max_size, qcaps.maximum_capsule_size)) {
+ rv = -EFAULT;
+ goto out;
+ }
+
+ if (put_user(reset_type, qcaps.reset_type))
+ rv = -EFAULT;
+
+out:
+ kfree(capsules);
+ return rv;
+}
+
+static long efi_test_ioctl(struct file *file, unsigned int cmd,
+ unsigned long arg)
+{
+ switch (cmd) {
+ case EFI_RUNTIME_GET_VARIABLE:
+ return efi_runtime_get_variable(arg);
+
+ case EFI_RUNTIME_SET_VARIABLE:
+ return efi_runtime_set_variable(arg);
+
+ case EFI_RUNTIME_GET_TIME:
+ return efi_runtime_get_time(arg);
+
+ case EFI_RUNTIME_SET_TIME:
+ return efi_runtime_set_time(arg);
+
+ case EFI_RUNTIME_GET_WAKETIME:
+ return efi_runtime_get_waketime(arg);
+
+ case EFI_RUNTIME_SET_WAKETIME:
+ return efi_runtime_set_waketime(arg);
+
+ case EFI_RUNTIME_GET_NEXTVARIABLENAME:
+ return efi_runtime_get_nextvariablename(arg);
+
+ case EFI_RUNTIME_GET_NEXTHIGHMONOTONICCOUNT:
+ return efi_runtime_get_nexthighmonocount(arg);
+
+ case EFI_RUNTIME_QUERY_VARIABLEINFO:
+ return efi_runtime_query_variableinfo(arg);
+
+ case EFI_RUNTIME_QUERY_CAPSULECAPABILITIES:
+ return efi_runtime_query_capsulecaps(arg);
+ }
+
+ return -ENOTTY;
+}
+
+static int efi_test_open(struct inode *inode, struct file *file)
+{
+ /*
+ * nothing special to do here
+ * We do accept multiple open files at the same time as we
+ * synchronize on the per call operation.
+ */
+ return 0;
+}
+
+static int efi_test_close(struct inode *inode, struct file *file)
+{
+ return 0;
+}
+
+/*
+ * The various file operations we support.
+ */
+static const struct file_operations efi_test_fops = {
+ .owner = THIS_MODULE,
+ .unlocked_ioctl = efi_test_ioctl,
+ .open = efi_test_open,
+ .release = efi_test_close,
+ .llseek = no_llseek,
+};
+
+static struct miscdevice efi_test_dev = {
+ MISC_DYNAMIC_MINOR,
+ "efi_test",
+ &efi_test_fops
+};
+
+static int __init efi_test_init(void)
+{
+ int ret;
+
+ ret = misc_register(&efi_test_dev);
+ if (ret) {
+ pr_err("efi_test: can't misc_register on minor=%d\n",
+ MISC_DYNAMIC_MINOR);
+ return ret;
+ }
+
+ return 0;
+}
+
+static void __exit efi_test_exit(void)
+{
+ misc_deregister(&efi_test_dev);
+}
+
+module_init(efi_test_init);
+module_exit(efi_test_exit);
diff --git a/drivers/firmware/efi/test/efi_test.h b/drivers/firmware/efi/test/efi_test.h
new file mode 100644
index 0000000000000000000000000000000000000000..a33a6c633852ce6eb375c16a12c63fdab58f79ea
--- /dev/null
+++ b/drivers/firmware/efi/test/efi_test.h
@@ -0,0 +1,110 @@
+/*
+ * EFI Test driver Header
+ *
+ * Copyright(C) 2012-2016 Canonical Ltd.
+ *
+ */
+
+#ifndef _DRIVERS_FIRMWARE_EFI_TEST_H_
+#define _DRIVERS_FIRMWARE_EFI_TEST_H_
+
+#include <linux/efi.h>
+
+struct efi_getvariable {
+ efi_char16_t *variable_name;
+ efi_guid_t *vendor_guid;
+ u32 *attributes;
+ unsigned long *data_size;
+ void *data;
+ efi_status_t *status;
+} __packed;
+
+struct efi_setvariable {
+ efi_char16_t *variable_name;
+ efi_guid_t *vendor_guid;
+ u32 attributes;
+ unsigned long data_size;
+ void *data;
+ efi_status_t *status;
+} __packed;
+
+struct efi_getnextvariablename {
+ unsigned long *variable_name_size;
+ efi_char16_t *variable_name;
+ efi_guid_t *vendor_guid;
+ efi_status_t *status;
+} __packed;
+
+struct efi_queryvariableinfo {
+ u32 attributes;
+ u64 *maximum_variable_storage_size;
+ u64 *remaining_variable_storage_size;
+ u64 *maximum_variable_size;
+ efi_status_t *status;
+} __packed;
+
+struct efi_gettime {
+ efi_time_t *time;
+ efi_time_cap_t *capabilities;
+ efi_status_t *status;
+} __packed;
+
+struct efi_settime {
+ efi_time_t *time;
+ efi_status_t *status;
+} __packed;
+
+struct efi_getwakeuptime {
+ efi_bool_t *enabled;
+ efi_bool_t *pending;
+ efi_time_t *time;
+ efi_status_t *status;
+} __packed;
+
+struct efi_setwakeuptime {
+ efi_bool_t enabled;
+ efi_time_t *time;
+ efi_status_t *status;
+} __packed;
+
+struct efi_getnexthighmonotoniccount {
+ u32 *high_count;
+ efi_status_t *status;
+} __packed;
+
+struct efi_querycapsulecapabilities {
+ efi_capsule_header_t **capsule_header_array;
+ unsigned long capsule_count;
+ u64 *maximum_capsule_size;
+ int *reset_type;
+ efi_status_t *status;
+} __packed;
+
+#define EFI_RUNTIME_GET_VARIABLE \
+ _IOWR('p', 0x01, struct efi_getvariable)
+#define EFI_RUNTIME_SET_VARIABLE \
+ _IOW('p', 0x02, struct efi_setvariable)
+
+#define EFI_RUNTIME_GET_TIME \
+ _IOR('p', 0x03, struct efi_gettime)
+#define EFI_RUNTIME_SET_TIME \
+ _IOW('p', 0x04, struct efi_settime)
+
+#define EFI_RUNTIME_GET_WAKETIME \
+ _IOR('p', 0x05, struct efi_getwakeuptime)
+#define EFI_RUNTIME_SET_WAKETIME \
+ _IOW('p', 0x06, struct efi_setwakeuptime)
+
+#define EFI_RUNTIME_GET_NEXTVARIABLENAME \
+ _IOWR('p', 0x07, struct efi_getnextvariablename)
+
+#define EFI_RUNTIME_QUERY_VARIABLEINFO \
+ _IOR('p', 0x08, struct efi_queryvariableinfo)
+
+#define EFI_RUNTIME_GET_NEXTHIGHMONOTONICCOUNT \
+ _IOR('p', 0x09, struct efi_getnexthighmonotoniccount)
+
+#define EFI_RUNTIME_QUERY_CAPSULECAPABILITIES \
+ _IOR('p', 0x0A, struct efi_querycapsulecapabilities)
+
+#endif /* _DRIVERS_FIRMWARE_EFI_TEST_H_ */