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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 25/44] x86/boot: convert create_dom0 to use boot info Date: Thu, 17 Oct 2024 13:03:05 -0400 Message-Id: <20241017170325.3842-26-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: 1729185804265116600 Content-Type: text/plain; charset="utf-8" This commit changes create_dom0 to no longer take the individual components= and take struct boot_info instead. Internally, it is changed to locate the kern= el and ramdisk details from struct boot_info. Signed-off-by: Daniel P. Smith Reviewed-by: Jason Andryuk --- Changes since v5: - change headroom back to unsigned long - make mod_idx unsigned int --- xen/arch/x86/setup.c | 26 +++++++++++++++++--------- 1 file changed, 17 insertions(+), 9 deletions(-) diff --git a/xen/arch/x86/setup.c b/xen/arch/x86/setup.c index 08319f871a5d..5bc667b8b4d4 100644 --- a/xen/arch/x86/setup.c +++ b/xen/arch/x86/setup.c @@ -945,10 +945,8 @@ static unsigned int __init copy_bios_e820(struct e820e= ntry *map, unsigned int li return n; } =20 -static struct domain *__init create_dom0(const module_t *image, - unsigned long headroom, - module_t *initrd, const char *kex= tra, - const char *loader) +static struct domain *__init create_dom0(const struct boot_info *bi, + const char *kextra) { static char __initdata cmdline[MAX_GUEST_CMDLINE]; =20 @@ -963,9 +961,22 @@ static struct domain *__init create_dom0(const module_= t *image, .misc_flags =3D opt_dom0_msr_relaxed ? XEN_X86_MSR_RELAXED : 0, }, }; + unsigned long headroom; + unsigned int mod_idx =3D first_boot_module_index(bi, BOOTMOD_RAMDISK); + module_t *image, *initrd; struct domain *d; domid_t domid; =20 + /* Map boot_module to mb1 module for dom0 */ + image =3D bi->mods[0].mod; + headroom =3D bi->mods[0].headroom; + + /* Map boot_module to mb1 module for initrd */ + if ( mod_idx < 0 ) + initrd =3D NULL; + else + initrd =3D bi->mods[mod_idx].mod; + if ( opt_dom0_pvh ) { dom0_cfg.flags |=3D (XEN_DOMCTL_CDF_hvm | @@ -994,7 +1005,7 @@ static struct domain *__init create_dom0(const module_= t *image, if ( image->string || kextra ) { if ( image->string ) - safe_strcpy(cmdline, cmdline_cook(__va(image->string), loader)= ); + safe_strcpy(cmdline, cmdline_cook(__va(image->string), bi->loa= der)); =20 if ( kextra ) /* kextra always includes exactly one leading space. */ @@ -2104,10 +2115,7 @@ void asmlinkage __init noreturn __start_xen(unsigned= long mbi_p) * We're going to setup domain0 using the module(s) that we stashed sa= fely * above our heap. The second module, if present, is an initrd ramdisk. */ - dom0 =3D create_dom0(bi->mods[0].mod, bi->mods[0].headroom, - initrdidx < bi->nr_modules ? bi->mods[initrdidx].mod - : NULL, - kextra, bi->loader); + dom0 =3D create_dom0(bi, kextra); if ( !dom0 ) panic("Could not set up DOM0 guest OS\n"); =20 --=20 2.30.2