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efi/efi_test: add exporting ResetSystem runtime service

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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>
This commit is contained in:
Ivan Hu 2018-08-22 17:15:12 +08:00 committed by Ard Biesheuvel
parent 41f1c48420
commit bcb31c6225
2 changed files with 37 additions and 0 deletions
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27
drivers/firmware/efi/test/efi_test.c
View file

@ -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;

10
drivers/firmware/efi/test/efi_test.h
View file

@ -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_ */