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Smith" To: xen-devel@lists.xenproject.org Cc: "Daniel P. Smith" , jason.andryuk@amd.com, christopher.w.clark@gmail.com, Jan Beulich , Andrew Cooper , =?UTF-8?q?Roger=20Pau=20Monn=C3=A9?= Subject: [PATCH v4 39/44] x86/boot: introduce domid field to struct boot_domain Date: Fri, 30 Aug 2024 17:47:24 -0400 Message-Id: <20240830214730.1621-40-dpsmith@apertussolutions.com> X-Mailer: git-send-email 2.30.2 In-Reply-To: <20240830214730.1621-1-dpsmith@apertussolutions.com> References: <20240830214730.1621-1-dpsmith@apertussolutions.com> MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable X-ZohoMailClient: External X-ZohoMail-DKIM: pass (identity dpsmith@apertussolutions.com) X-ZM-MESSAGEID: 1725054778029116600 Content-Type: text/plain; charset="utf-8" Add a domid field to struct boot_domain to hold the assigned domain id for = the domain. During initialization, ensure all instances of struct boot_domain h= ave the invalid domid to ensure that the domid must be set either by convention= or configuration. Signed-off-by: Daniel P. Smith --- xen/arch/x86/include/asm/bootdomain.h | 2 ++ xen/arch/x86/setup.c | 12 +++++++----- 2 files changed, 9 insertions(+), 5 deletions(-) diff --git a/xen/arch/x86/include/asm/bootdomain.h b/xen/arch/x86/include/a= sm/bootdomain.h index 4285223ac5ab..d6264d554dba 100644 --- a/xen/arch/x86/include/asm/bootdomain.h +++ b/xen/arch/x86/include/asm/bootdomain.h @@ -11,6 +11,8 @@ struct boot_module; =20 struct boot_domain { + domid_t domid; + struct boot_module *kernel; struct boot_module *ramdisk; }; diff --git a/xen/arch/x86/setup.c b/xen/arch/x86/setup.c index 77abed637ff2..43b588d4d105 100644 --- a/xen/arch/x86/setup.c +++ b/xen/arch/x86/setup.c @@ -322,6 +322,9 @@ static void __init multiboot_to_bootinfo(multiboot_info= _t *mbi, module_t *mods) boot_mods[info.nr_mods].type =3D BOOTMOD_XEN; boot_mods[info.nr_mods].flags |=3D BOOTMOD_FLAG_X86_CONSUMED; =20 + for ( i=3D0; i < MAX_NR_BOOTDOMS; i++ ) + boot_doms[i].domid =3D DOMID_INVALID; + info.domains =3D boot_doms; =20 boot_info =3D &info; @@ -963,7 +966,6 @@ static struct domain *__init create_dom0(const struct b= oot_info *bi) }; struct boot_domain *bd =3D &bi->domains[0]; struct domain *d; - domid_t domid; =20 if ( opt_dom0_pvh ) { @@ -979,15 +981,15 @@ static struct domain *__init create_dom0(const struct= boot_info *bi) dom0_cfg.flags |=3D XEN_DOMCTL_CDF_iommu; =20 /* Create initial domain. Not d0 for pvshim. */ - domid =3D get_initial_domain_id(); - d =3D domain_create(domid, &dom0_cfg, pv_shim ? 0 : CDF_privileged); + bd->domid =3D get_initial_domain_id(); + d =3D domain_create(bd->domid, &dom0_cfg, pv_shim ? 0 : CDF_privileged= ); if ( IS_ERR(d) ) - panic("Error creating d%u: %ld\n", domid, PTR_ERR(d)); + panic("Error creating d%u: %ld\n", bd->domid, PTR_ERR(d)); =20 init_dom0_cpuid_policy(d); =20 if ( alloc_dom0_vcpu0(d) =3D=3D NULL ) - panic("Error creating d%uv0\n", domid); + panic("Error creating d%uv0\n", bd->domid); =20 /* Grab the DOM0 command line. */ if ( bd->kernel->cmdline || bi->kextra ) --=20 2.30.2