> -----Original Message-----
> From: Alexandru Isaila [mailto:[email protected]]
> Sent: 06 June 2018 13:25
> To: [email protected]
> Cc: Ian Jackson <[email protected]>; Wei Liu <[email protected]>;
> [email protected]; Andrew Cooper <[email protected]>; Paul
> Durrant <[email protected]>; Alexandru Isaila
> <[email protected]>
> Subject: [PATCH v6 7/8] x86/hvm: Introduce viridian_save_vcpu_ctxt_one()
> func
>
> This is used to save data from a single instance.
>
> Signed-off-by: Alexandru Isaila <[email protected]>
>
> ---
> Changes since V5:
> - Add memset to 0 for ctxt->_pad
> ---
> xen/arch/x86/hvm/viridian.c | 14 ++++++++++----
> 1 file changed, 10 insertions(+), 4 deletions(-)
>
> diff --git a/xen/arch/x86/hvm/viridian.c b/xen/arch/x86/hvm/viridian.c
> index 694eae6..9be5ed2 100644
> --- a/xen/arch/x86/hvm/viridian.c
> +++ b/xen/arch/x86/hvm/viridian.c
> @@ -1026,6 +1026,13 @@ static int viridian_load_domain_ctxt(struct domain
> *d, hvm_domain_context_t *h)
> HVM_REGISTER_SAVE_RESTORE(VIRIDIAN_DOMAIN,
> viridian_save_domain_ctxt,
> viridian_load_domain_ctxt, 1, HVMSR_PER_DOM);
>
> +static void viridian_save_vcpu_ctxt_one(struct vcpu *v, struct
> hvm_viridian_vcpu_context *ctxt)
> +{
> + ctxt->vp_assist_msr = v->arch.hvm_vcpu.viridian.vp_assist.msr.raw;
> + ctxt->vp_assist_pending = v->arch.hvm_vcpu.viridian.vp_assist.pending;
> + memset(ctxt->_pad, 0, sizeof(ctxt->_pad));
Sorry, this is not what I meant. What I meant was:
memset(ctx, 0, sizeof(*ctx));
ctxt->vp_assist_msr = v->arch.hvm_vcpu.viridian.vp_assist.msr.raw;
ctxt->vp_assist_pending = v->arch.hvm_vcpu.viridian.vp_assist.pending;
Paul
> +}
> +
> static int viridian_save_vcpu_ctxt(struct domain *d, hvm_domain_context_t
> *h)
> {
> struct vcpu *v;
> @@ -1034,10 +1041,9 @@ static int viridian_save_vcpu_ctxt(struct domain
> *d, hvm_domain_context_t *h)
> return 0;
>
> for_each_vcpu( d, v ) {
> - struct hvm_viridian_vcpu_context ctxt = {
> - .vp_assist_msr = v->arch.hvm_vcpu.viridian.vp_assist.msr.raw,
> - .vp_assist_pending = v->arch.hvm_vcpu.viridian.vp_assist.pending,
> - };
> + struct hvm_viridian_vcpu_context ctxt;
> +
> + viridian_save_vcpu_ctxt_one(v, &ctxt);
>
> if ( hvm_save_entry(VIRIDIAN_VCPU, v->vcpu_id, h, &ctxt) != 0 )
> return 1;
> --
> 2.7.4
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