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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 28/44] x86/boot: add cmdline to struct boot_module Date: Fri, 30 Aug 2024 17:47:13 -0400 Message-Id: <20240830214730.1621-29-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: 1725055037184116600 Content-Type: text/plain; charset="utf-8" Add a char pointer field, cmdline, to struct boot_module to hold the address pointed to by the string field of struct mod. This removes the need to use = the early_mod field to get to the dom0 kernel command line. Signed-off-by: Daniel P. Smith --- xen/arch/x86/include/asm/bootinfo.h | 2 ++ xen/arch/x86/setup.c | 9 ++++++--- 2 files changed, 8 insertions(+), 3 deletions(-) diff --git a/xen/arch/x86/include/asm/bootinfo.h b/xen/arch/x86/include/asm= /bootinfo.h index 06b3ecaf7bec..edd5c435d032 100644 --- a/xen/arch/x86/include/asm/bootinfo.h +++ b/xen/arch/x86/include/asm/bootinfo.h @@ -30,6 +30,8 @@ struct boot_module { #define BOOTMOD_FLAG_X86_RELOCATED (1U << 0) #define BOOTMOD_FLAG_X86_CONSUMED (1U << 1) =20 + const char *cmdline; + paddr_t start; size_t size; }; diff --git a/xen/arch/x86/setup.c b/xen/arch/x86/setup.c index 76f25e9d620c..8ba32c6b6bfa 100644 --- a/xen/arch/x86/setup.c +++ b/xen/arch/x86/setup.c @@ -314,6 +314,8 @@ static void __init multiboot_to_bootinfo(multiboot_info= _t *mbi, module_t *mods) { boot_mods[i].early_mod =3D &mods[i]; =20 + boot_mods[i].cmdline =3D (char *)(paddr_t)mods[i].string; + boot_mods[i].start =3D (paddr_t)mods[i].mod_start; boot_mods[i].size =3D mods[i].mod_end - mods[i].mod_start; } @@ -1000,10 +1002,11 @@ static struct domain *__init create_dom0(const stru= ct boot_info *bi) panic("Error creating d%uv0\n", domid); =20 /* Grab the DOM0 command line. */ - if ( image->early_mod->string || bi->kextra ) + if ( image->cmdline || bi->kextra ) { - if ( image->early_mod->string ) - safe_strcpy(cmdline, cmdline_cook(__va(image->early_mod->strin= g), + if ( image->cmdline ) + safe_strcpy(cmdline, + cmdline_cook(__va((unsigned long)image->cmdline), bi->boot_loader_name)); =20 if ( bi->kextra ) --=20 2.30.2