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| author |   Ivan Hu <ivan.hu@canonical.com> | 2018-08-22 17:15:12 +0800 |
|---|---|---|
| committer |   Ard Biesheuvel <ard.biesheuvel@linaro.org> | 2018-09-26 12:04:00 +0200 |
| commit | bcb31c6225c2420344ebc1e87834252b8cf4923c (patch) | |
| tree | 3fe0ff37fd481ede2e8b6b1fa3e74cb04d7e809a /drivers | |
| parent | efi/libstub: arm: support building with clang (diff) | |
| download | linux-dev-bcb31c6225c2420344ebc1e87834252b8cf4923c.tar.xz linux-dev-bcb31c6225c2420344ebc1e87834252b8cf4923c.zip | |
efi/efi_test: add exporting ResetSystem runtime service
Add exporting the UEFI runtime service ResetSystem for upper application or test
tools to use.
Signed-off-by: Ivan Hu <ivan.hu@canonical.com>
Signed-off-by: Ard Biesheuvel <ard.biesheuvel@linaro.org>
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/firmware/efi/test/efi_test.c | 27 | ||||
| -rw-r--r-- | drivers/firmware/efi/test/efi_test.h | 10 |
2 files changed, 37 insertions, 0 deletions
diff --git a/drivers/firmware/efi/test/efi_test.c b/drivers/firmware/efi/test/efi_test.c index 41c48a1e8baa..769640940c9f 100644 --- a/drivers/firmware/efi/test/efi_test.c +++ b/drivers/firmware/efi/test/efi_test.c @@ -542,6 +542,30 @@ static long efi_runtime_get_nexthighmonocount(unsigned long arg) return 0; } +static long efi_runtime_reset_system(unsigned long arg) +{ + struct efi_resetsystem __user *resetsystem_user; + struct efi_resetsystem resetsystem; + void *data = NULL; + + resetsystem_user = (struct efi_resetsystem __user *)arg; + if (copy_from_user(&resetsystem, resetsystem_user, + sizeof(resetsystem))) + return -EFAULT; + if (resetsystem.data_size != 0) { + data = memdup_user((void *)resetsystem.data, + resetsystem.data_size); + if (IS_ERR(data)) + return PTR_ERR(data); + } + + efi.reset_system(resetsystem.reset_type, resetsystem.status, + resetsystem.data_size, (efi_char16_t *)data); + + kfree(data); + return 0; +} + static long efi_runtime_query_variableinfo(unsigned long arg) { struct efi_queryvariableinfo __user *queryvariableinfo_user; @@ -682,6 +706,9 @@ static long efi_test_ioctl(struct file *file, unsigned int cmd, case EFI_RUNTIME_QUERY_CAPSULECAPABILITIES: return efi_runtime_query_capsulecaps(arg); + + case EFI_RUNTIME_RESET_SYSTEM: + return efi_runtime_reset_system(arg); } return -ENOTTY; diff --git a/drivers/firmware/efi/test/efi_test.h b/drivers/firmware/efi/test/efi_test.h index 9812c6a02b40..5f4818bf112f 100644 --- a/drivers/firmware/efi/test/efi_test.h +++ b/drivers/firmware/efi/test/efi_test.h @@ -81,6 +81,13 @@ struct efi_querycapsulecapabilities { efi_status_t *status; } __packed; +struct efi_resetsystem { + int reset_type; + efi_status_t status; + unsigned long data_size; + efi_char16_t *data; +} __packed; + #define EFI_RUNTIME_GET_VARIABLE \ _IOWR('p', 0x01, struct efi_getvariable) #define EFI_RUNTIME_SET_VARIABLE \ @@ -108,4 +115,7 @@ struct efi_querycapsulecapabilities { #define EFI_RUNTIME_QUERY_CAPSULECAPABILITIES \ _IOR('p', 0x0A, struct efi_querycapsulecapabilities) +#define EFI_RUNTIME_RESET_SYSTEM \ + _IOW('p', 0x0B, struct efi_resetsystem) + #endif /* _DRIVERS_FIRMWARE_EFI_TEST_H_ */ |