On Mon, 3 Feb 2020 08:19:23 -0500
Christian Borntraeger <borntraeger@xxxxxxxxxx> wrote:
> From: Vasily Gorbik <gor@xxxxxxxxxxxxx>
>
> Before being able to host protected virtual machines, donate some of
> the memory to the ultravisor. Besides that the ultravisor might impose
> addressing limitations for memory used to back protected VM storage. Treat
> that limit as protected virtualization host's virtual memory limit.
>
> Signed-off-by: Vasily Gorbik <gor@xxxxxxxxxxxxx>
> Reviewed-by: Christian Borntraeger <borntraeger@xxxxxxxxxx>
> ---
> arch/s390/include/asm/uv.h | 16 ++++++++++++
> arch/s390/kernel/setup.c | 3 +++
> arch/s390/kernel/uv.c | 53 ++++++++++++++++++++++++++++++++++++++
> 3 files changed, 72 insertions(+)
>
> diff --git a/arch/s390/include/asm/uv.h b/arch/s390/include/asm/uv.h
> index 32eac3ab2d3b..cdf2fd71d7ab 100644
> --- a/arch/s390/include/asm/uv.h
> +++ b/arch/s390/include/asm/uv.h
(...)
> @@ -59,6 +61,15 @@ struct uv_cb_qui {
> u64 reserved98;
> } __packed __aligned(8);
>
> +struct uv_cb_init {
> + struct uv_cb_header header;
> + u64 reserved08[2];
> + u64 stor_origin;
> + u64 stor_len;
> + u64 reserved28[4];
> +
Maybe drop the blank line?
> +} __packed __aligned(8);
> +
> struct uv_cb_share {
> struct uv_cb_header header;
> u64 reserved08[3];
(...)
Reviewed-by: Cornelia Huck <cohuck@xxxxxxxxxx>
