Re: [kvm-unit-tests PATCH 3/8] s390x: sie: Add UV information into VM struct

[Claudio Imbrenda <imbrenda@linux.ibm.com>]

On Tue, 23 Nov 2021 10:39:51 +0000
Janosch Frank <frankja@linux.ibm.com> wrote:

> We need to save the handles for the VM and the VCPU so we can retrieve
> them easily after their creation. Since the SIE lib is single guest

multiple guest CPUs will be needed for testing some functions, but I
guess that's something for me to do :)

> cpu only we only save one vcpu handle.
> 
> Signed-off-by: Janosch Frank <frankja@linux.ibm.com>

Reviewed-by: Claudio Imbrenda <imbrenda@linux.ibm.com>

> ---
>  lib/s390x/sie.h | 6 ++++++
>  1 file changed, 6 insertions(+)
> 
> diff --git a/lib/s390x/sie.h b/lib/s390x/sie.h
> index c6eb6441..1a12faa7 100644
> --- a/lib/s390x/sie.h
> +++ b/lib/s390x/sie.h
> @@ -200,6 +200,11 @@ union {
>  	uint64_t	gvrd;			/* 0x01f8 */
>  } __attribute__((packed));
>  
> +struct vm_uv {
> +	uint64_t vm_handle;
> +	uint64_t vcpu_handle;
> +};
> +
>  struct vm_save_regs {
>  	uint64_t grs[16];
>  	uint64_t fprs[16];
> @@ -220,6 +225,7 @@ struct vm {
>  	struct vm_save_area save_area;
>  	void *sca;				/* System Control Area */
>  	uint8_t *crycb;				/* Crypto Control Block */
> +	struct vm_uv uv;			/* PV UV information */
>  	/* Ptr to first guest page */
>  	uint8_t *guest_mem;
>  };