[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index] Re: [PATCH v1 4/8] xen/domain: introduce domid_alloc()
On 19.03.2025 00:36, dmkhn@xxxxxxxxx wrote: > --- a/xen/arch/arm/domain_build.c > +++ b/xen/arch/arm/domain_build.c > @@ -2367,8 +2367,15 @@ void __init create_dom0(void) > .grant_opts = XEN_DOMCTL_GRANT_version(opt_gnttab_max_version), > }; > unsigned int flags = CDF_privileged; > + domid_t domid; > int rc; > > + rc = domid_alloc(get_initial_domain_id()); > + if ( rc < 0 ) > + panic("Cannot use domain ID %d (rc = %d)\n", > + get_initial_domain_id(), rc); > + domid = rc; > + > /* The vGIC for DOM0 is exactly emulating the hardware GIC */ > dom0_cfg.arch.gic_version = XEN_DOMCTL_CONFIG_GIC_NATIVE; > dom0_cfg.arch.nr_spis = VGIC_DEF_NR_SPIS; > @@ -2391,19 +2398,21 @@ void __init create_dom0(void) > if ( !llc_coloring_enabled ) > flags |= CDF_directmap; > > - dom0 = domain_create(0, &dom0_cfg, flags); > + dom0 = domain_create(domid, &dom0_cfg, flags); > if ( IS_ERR(dom0) ) > - panic("Error creating domain 0 (rc = %ld)\n", PTR_ERR(dom0)); > + panic("Error creating domain %d (rc = %ld)\n", domid, PTR_ERR(dom0)); > > if ( llc_coloring_enabled && (rc = dom0_set_llc_colors(dom0)) ) > - panic("Error initializing LLC coloring for domain 0 (rc = %d)\n", > rc); > + panic("Error initializing LLC coloring for domain %d (rc = %d)\n", > + domid, rc); > > if ( alloc_dom0_vcpu0(dom0) == NULL ) > - panic("Error creating domain 0 vcpu0\n"); > + panic("Error creating domain %d vcpu0\n", domid); > > rc = construct_dom0(dom0); > if ( rc ) > - panic("Could not set up DOM0 guest OS (rc = %d)\n", rc); > + panic("Could not set up guest OS for domain %d (rc = %d)\n", > + domid, rc); > } Assuming we really needed this new function, why would there be an Arm side change to Dom0 creation, but no equivalent change on the x86 side? Jan
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