From 824800a062b0690e9554eedc73bdb81a67f85808 Mon Sep 17 00:00:00 2001 From: Alexandru Isaila Date: Mon, 10 Sep 2018 16:26:00 +0200 Subject: [PATCH] x86/hvm: introduce viridian_save_vcpu_ctxt_one() This is used to save data from a single instance. Signed-off-by: Alexandru Isaila Reviewed-by: Paul Durrant --- xen/arch/x86/hvm/viridian.c | 32 ++++++++++++++++++++------------ 1 file changed, 20 insertions(+), 12 deletions(-) diff --git a/xen/arch/x86/hvm/viridian.c b/xen/arch/x86/hvm/viridian.c index a23d0876c4..2df0127a46 100644 --- a/xen/arch/x86/hvm/viridian.c +++ b/xen/arch/x86/hvm/viridian.c @@ -1030,24 +1030,32 @@ 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 int viridian_save_vcpu_ctxt_one(struct vcpu *v, hvm_domain_context_t *h) +{ + struct hvm_viridian_vcpu_context ctxt = { + .vp_assist_msr = v->arch.hvm.viridian.vp_assist.msr.raw, + .vp_assist_pending = v->arch.hvm.viridian.vp_assist.pending, + }; + + if ( !is_viridian_domain(v->domain) ) + return 0; + + return hvm_save_entry(VIRIDIAN_VCPU, v->vcpu_id, h, &ctxt); +} + static int viridian_save_vcpu_ctxt(struct domain *d, hvm_domain_context_t *h) { struct vcpu *v; + int err = 0; - if ( !is_viridian_domain(d) ) - return 0; - - for_each_vcpu( d, v ) { - struct hvm_viridian_vcpu_context ctxt = { - .vp_assist_msr = v->arch.hvm.viridian.vp_assist.msr.raw, - .vp_assist_pending = v->arch.hvm.viridian.vp_assist.pending, - }; - - if ( hvm_save_entry(VIRIDIAN_VCPU, v->vcpu_id, h, &ctxt) != 0 ) - return 1; + for_each_vcpu ( d, v ) + { + err = viridian_save_vcpu_ctxt_one(v, h); + if ( err ) + break; } - return 0; + return err; } static int viridian_load_vcpu_ctxt(struct domain *d, hvm_domain_context_t *h)