ACK: [PATCH] efi_runtime: add UEFI runtime service GetNextHighMonotonicCount interface

[Colin Ian King]

On 02/10/12 07:12, Ivan Hu wrote:
> Signed-off-by: Ivan Hu <ivan.hu at canonical.com>
> ---
>   efi_runtime/efi_runtime.c |   16 ++++++++++++++++
>   efi_runtime/efi_runtime.h |    8 ++++++++
>   2 files changed, 24 insertions(+)
>
> diff --git a/efi_runtime/efi_runtime.c b/efi_runtime/efi_runtime.c
> index 3ae2d8f..d5ff92b 100644
> --- a/efi_runtime/efi_runtime.c
> +++ b/efi_runtime/efi_runtime.c
> @@ -119,6 +119,8 @@ static long efi_runtime_ioctl(struct file *file, unsigned int cmd,
>
>   	struct efi_queryvariableinfo __user *pqueryvariableinfo;
>
> +	struct efi_getnexthighmonotoniccount __user *pgetnexthighmonotoniccount;
> +
>   	switch (cmd) {
>   	case EFI_RUNTIME_GET_VARIABLE:
>   		pgetvariable = (struct efi_getvariable __user *)arg;
> @@ -281,6 +283,20 @@ static long efi_runtime_ioctl(struct file *file, unsigned int cmd,
>   			return -EINVAL;
>
>   		return 0;
> +
> +	case EFI_RUNTIME_GET_NEXTHIGHMONOTONICCOUNT:
> +
> +		pgetnexthighmonotoniccount = (struct
> +				efi_getnexthighmonotoniccount __user *)arg;
> +
> +		status = efi.get_next_high_mono_count(pgetnexthighmonotoniccount
> +								->HighCount);
> +		if (put_user(status, pgetnexthighmonotoniccount->status))
> +			return -EFAULT;
> +		if (status != EFI_SUCCESS)
> +			return -EINVAL;
> +
> +		return 0;
>   	}
>
>   	return -ENOTTY;
> diff --git a/efi_runtime/efi_runtime.h b/efi_runtime/efi_runtime.h
> index cc33878..b8262c0 100644
> --- a/efi_runtime/efi_runtime.h
> +++ b/efi_runtime/efi_runtime.h
> @@ -105,6 +105,11 @@ struct efi_setwakeuptime {
>   	uint64_t	*status;
>   } __attribute__ ((packed));
>
> +struct efi_getnexthighmonotoniccount {
> +	uint32_t	*HighCount;
> +	uint64_t	*status;
> +} __attribute__ ((packed));
> +
>   /* ioctl calls that are permitted to the /dev/efi_runtime interface. */
>   #define EFI_RUNTIME_GET_VARIABLE \
>   	_IOWR('p', 0x01, struct efi_getvariable)
> @@ -127,4 +132,7 @@ struct efi_setwakeuptime {
>   #define EFI_RUNTIME_QUERY_VARIABLEINFO \
>   	_IOR('p', 0x08, struct efi_queryvariableinfo)
>
> +#define EFI_RUNTIME_GET_NEXTHIGHMONOTONICCOUNT \
> +	_IOR('p', 0x09, struct efi_getnexthighmonotoniccount)
> +
>   #endif /* _EFI_RUNTIME_H_ */
>

Acked-by: Colin Ian King <colin.king at canonical.com>