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Commit bcb31c62 authored by Ivan Hu's avatar Ivan Hu Committed by Ard Biesheuvel
Browse files

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: default avatarIvan Hu <ivan.hu@canonical.com>
Signed-off-by: default avatarArd Biesheuvel <ard.biesheuvel@linaro.org>
parent 41f1c484

drivers/firmware/efi/test/efi_test.c

+27 −0
Original line number Diff line number Diff line
@@ -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;

drivers/firmware/efi/test/efi_test.h

+10 −0
Original line number Diff line number Diff line
@@ -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_ */