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Smith" To: xen-devel@lists.xenproject.org Cc: "Daniel P. Smith" , jason.andryuk@amd.com, christopher.w.clark@gmail.com, stefano.stabellini@amd.com, Jan Beulich , Andrew Cooper , =?UTF-8?q?Roger=20Pau=20Monn=C3=A9?= Subject: [PATCH v6 39/44] x86/boot: introduce domid field to struct boot_domain Date: Thu, 17 Oct 2024 13:03:19 -0400 Message-Id: <20241017170325.3842-40-dpsmith@apertussolutions.com> X-Mailer: git-send-email 2.30.2 In-Reply-To: <20241017170325.3842-1-dpsmith@apertussolutions.com> References: <20241017170325.3842-1-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: 1729185573209116600 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 Reviewed-by: Jason Andryuk --- 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 ccb5052e18be..e74526e20b5b 100644 --- a/xen/arch/x86/setup.c +++ b/xen/arch/x86/setup.c @@ -318,6 +318,9 @@ static struct boot_info *__init multiboot_fill_boot_inf= o(unsigned long mbi_p) bi->mods[bi->nr_modules].type =3D BOOTMOD_XEN; bi->mods[bi->nr_modules].flags =3D BOOTMOD_FLAG_X86_CONSUMED; =20 + for ( i =3D 0; i < MAX_NR_BOOTDOMS; i++ ) + bi->domains[i].domid =3D DOMID_INVALID; + return bi; } =20 @@ -958,7 +961,6 @@ static struct domain *__init create_dom0(struct boot_in= fo *bi) }; struct boot_domain *bd =3D &bi->domains[0]; struct domain *d; - domid_t domid; =20 if ( opt_dom0_pvh ) { @@ -974,15 +976,15 @@ static struct domain *__init create_dom0(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