From patchwork Wed Dec 6 12:38:37 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Thomas Zimmermann X-Patchwork-Id: 751426 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=suse.de header.i=@suse.de header.b="v8TF6YlG"; dkim=permerror (0-bit key) header.d=suse.de header.i=@suse.de header.b="/P2CsblD" Received: from smtp-out2.suse.de (smtp-out2.suse.de [195.135.223.131]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 0D5021A5; Wed, 6 Dec 2023 04:54:38 -0800 (PST) Received: from imap2.dmz-prg2.suse.org (imap2.dmz-prg2.suse.org [10.150.64.98]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (4096 bits) server-digest SHA256) (No client certificate requested) by smtp-out2.suse.de (Postfix) with ESMTPS id 2D3A31FD0D; Wed, 6 Dec 2023 12:54:36 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=suse.de; s=susede2_rsa; t=1701867276; h=from:from:reply-to:date:date:message-id:message-id:to:to:cc:cc: mime-version:mime-version: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=Qj72gcam6ZOgbPA7jLBKhrKJdI1UayiC+aw5zIvz5kc=; b=v8TF6YlGTAT1dsLbU/AVFy+6XxDM+kdUJtr49J2z3Bw3ADPgdGoUrU2R8jqYhHSEotD2qb aQTWPlmzT0sXvVmlPhIA9GMJ36dp/FzFtQ04p405WlZm4+BbXY8RQiXbrsKpwDszp9bh9k g4cJ069YEwpwDP5TnEN5bXCKmHeVAUI= DKIM-Signature: v=1; a=ed25519-sha256; c=relaxed/relaxed; d=suse.de; s=susede2_ed25519; t=1701867276; h=from:from:reply-to:date:date:message-id:message-id:to:to:cc:cc: mime-version:mime-version: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=Qj72gcam6ZOgbPA7jLBKhrKJdI1UayiC+aw5zIvz5kc=; b=/P2CsblDpuVxsZ2yqCSmzm+k2EfrrjxiEkHJLU5p8b7TLQmLZqvccqgBsvL2ofBonAkkcn h4Y9dyfCFjPcD5Dw== Received: from imap2.dmz-prg2.suse.org (localhost [127.0.0.1]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (4096 bits) server-digest SHA256) (No client certificate requested) by imap2.dmz-prg2.suse.org (Postfix) with ESMTPS id A25AE13B3C; Wed, 6 Dec 2023 12:54:35 +0000 (UTC) Received: from dovecot-director2.suse.de ([10.150.64.162]) by imap2.dmz-prg2.suse.org with ESMTPSA id AORtJgtvcGV6dAAAn2gu4w (envelope-from ); Wed, 06 Dec 2023 12:54:35 +0000 From: Thomas Zimmermann To: ardb@kernel.org, tglx@linutronix.de, mingo@redhat.com, bp@alien8.de, dave.hansen@linux.intel.com, x86@kernel.org, hpa@zytor.com, bhelgaas@google.com, arnd@arndb.de, zohar@linux.ibm.com, dmitry.kasatkin@gmail.com, paul@paul-moore.com, jmorris@namei.org, serge@hallyn.com, javierm@redhat.com Cc: linux-arch@vger.kernel.org, linux-efi@vger.kernel.org, linux-kernel@vger.kernel.org, linux-pci@vger.kernel.org, linux-integrity@vger.kernel.org, linux-security-module@vger.kernel.org, Thomas Zimmermann Subject: [PATCH 1/3] arch/x86: Move struct pci_setup_rom into pci_setup.h Date: Wed, 6 Dec 2023 13:38:37 +0100 Message-ID: <20231206125433.18420-2-tzimmermann@suse.de> X-Mailer: git-send-email 2.43.0 In-Reply-To: <20231206125433.18420-1-tzimmermann@suse.de> References: <20231206125433.18420-1-tzimmermann@suse.de> Precedence: bulk X-Mailing-List: linux-efi@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Authentication-Results: smtp-out2.suse.de; none X-Spam-Score: 3.20 X-Spamd-Result: default: False [3.20 / 50.00]; ARC_NA(0.00)[]; RCVD_VIA_SMTP_AUTH(0.00)[]; BAYES_HAM(-3.00)[100.00%]; FROM_HAS_DN(0.00)[]; TO_DN_SOME(0.00)[]; FREEMAIL_ENVRCPT(0.00)[gmail.com]; R_MISSING_CHARSET(2.50)[]; TAGGED_RCPT(0.00)[]; MIME_GOOD(-0.10)[text/plain]; BROKEN_CONTENT_TYPE(1.50)[]; TO_MATCH_ENVRCPT_ALL(0.00)[]; RCVD_COUNT_THREE(0.00)[3]; DKIM_SIGNED(0.00)[suse.de:s=susede2_rsa,suse.de:s=susede2_ed25519]; NEURAL_HAM_SHORT(-0.20)[-1.000]; RCPT_COUNT_TWELVE(0.00)[22]; MID_CONTAINS_FROM(1.00)[]; DBL_BLOCKED_OPENRESOLVER(0.00)[suse.de:email]; FREEMAIL_TO(0.00)[kernel.org,linutronix.de,redhat.com,alien8.de,linux.intel.com,zytor.com,google.com,arndb.de,linux.ibm.com,gmail.com,paul-moore.com,namei.org,hallyn.com]; FUZZY_BLOCKED(0.00)[rspamd.com]; FROM_EQ_ENVFROM(0.00)[]; MIME_TRACE(0.00)[0:+]; RCVD_TLS_ALL(0.00)[]; SUSPICIOUS_RECIPS(1.50)[] The type definition of struct pci_setup_rom in requires struct setup_data from . Many drivers include , but do not use boot parameters. Changes to bootparam.h or its included header files could easily trigger a large, unnecessary rebuild of the kernel. Moving struct pci_setup_rom into its own header file avoid including in . Update the only two users of the struct in the x86 PCI code and in the EFI code. Also remove the include statement for x86_init.h, which is unnecessary but pulls in bootparams.h. Signed-off-by: Thomas Zimmermann --- arch/x86/include/asm/pci.h | 13 ------------- arch/x86/include/asm/pci_setup.h | 19 +++++++++++++++++++ arch/x86/pci/common.c | 1 + drivers/firmware/efi/libstub/x86-stub.c | 1 + 4 files changed, 21 insertions(+), 13 deletions(-) create mode 100644 arch/x86/include/asm/pci_setup.h diff --git a/arch/x86/include/asm/pci.h b/arch/x86/include/asm/pci.h index b40c462b4af3..b3ab80a03365 100644 --- a/arch/x86/include/asm/pci.h +++ b/arch/x86/include/asm/pci.h @@ -10,7 +10,6 @@ #include #include #include -#include struct pci_sysdata { int domain; /* PCI domain */ @@ -124,16 +123,4 @@ cpumask_of_pcibus(const struct pci_bus *bus) } #endif -struct pci_setup_rom { - struct setup_data data; - uint16_t vendor; - uint16_t devid; - uint64_t pcilen; - unsigned long segment; - unsigned long bus; - unsigned long device; - unsigned long function; - uint8_t romdata[]; -}; - #endif /* _ASM_X86_PCI_H */ diff --git a/arch/x86/include/asm/pci_setup.h b/arch/x86/include/asm/pci_setup.h new file mode 100644 index 000000000000..b4b246ef6f2b --- /dev/null +++ b/arch/x86/include/asm/pci_setup.h @@ -0,0 +1,19 @@ +/* SPDX-License-Identifier: GPL-2.0 */ +#ifndef _ASM_X86_PCI_SETUP_H +#define _ASM_X86_PCI_SETUP_H + +#include + +struct pci_setup_rom { + struct setup_data data; + uint16_t vendor; + uint16_t devid; + uint64_t pcilen; + unsigned long segment; + unsigned long bus; + unsigned long device; + unsigned long function; + uint8_t romdata[]; +}; + +#endif /* _ASM_X86_PCI_SETUP_H */ diff --git a/arch/x86/pci/common.c b/arch/x86/pci/common.c index ddb798603201..c6cbb9182160 100644 --- a/arch/x86/pci/common.c +++ b/arch/x86/pci/common.c @@ -17,6 +17,7 @@ #include #include #include +#include #include #include #include diff --git a/drivers/firmware/efi/libstub/x86-stub.c b/drivers/firmware/efi/libstub/x86-stub.c index 1bfdae34df39..0c878ebe5257 100644 --- a/drivers/firmware/efi/libstub/x86-stub.c +++ b/drivers/firmware/efi/libstub/x86-stub.c @@ -17,6 +17,7 @@ #include #include #include +#include #include "efistub.h" #include "x86-stub.h" From patchwork Wed Dec 6 12:38:38 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Thomas Zimmermann X-Patchwork-Id: 750789 Received: from smtp-out1.suse.de (smtp-out1.suse.de [IPv6:2a07:de40:b251:101:10:150:64:1]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 322591BD; Wed, 6 Dec 2023 04:54:38 -0800 (PST) Received: from imap2.dmz-prg2.suse.org (imap2.dmz-prg2.suse.org [IPv6:2a07:de40:b281:104:10:150:64:98]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (4096 bits) server-digest SHA256) (No client certificate requested) by smtp-out1.suse.de (Postfix) with ESMTPS id B204321EFD; Wed, 6 Dec 2023 12:54:36 +0000 (UTC) Received: from imap2.dmz-prg2.suse.org (localhost [127.0.0.1]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (4096 bits) server-digest SHA256) (No client certificate requested) by imap2.dmz-prg2.suse.org (Postfix) with ESMTPS id 341EC13403; Wed, 6 Dec 2023 12:54:36 +0000 (UTC) Received: from dovecot-director2.suse.de ([10.150.64.162]) by imap2.dmz-prg2.suse.org with ESMTPSA id gGSICwxvcGV6dAAAn2gu4w (envelope-from ); Wed, 06 Dec 2023 12:54:36 +0000 From: Thomas Zimmermann To: ardb@kernel.org, tglx@linutronix.de, mingo@redhat.com, bp@alien8.de, dave.hansen@linux.intel.com, x86@kernel.org, hpa@zytor.com, bhelgaas@google.com, arnd@arndb.de, zohar@linux.ibm.com, dmitry.kasatkin@gmail.com, paul@paul-moore.com, jmorris@namei.org, serge@hallyn.com, javierm@redhat.com Cc: linux-arch@vger.kernel.org, linux-efi@vger.kernel.org, linux-kernel@vger.kernel.org, linux-pci@vger.kernel.org, linux-integrity@vger.kernel.org, linux-security-module@vger.kernel.org, Thomas Zimmermann Subject: [PATCH 2/3] arch/x86: Add for arch_ima_efi_boot_mode Date: Wed, 6 Dec 2023 13:38:38 +0100 Message-ID: <20231206125433.18420-3-tzimmermann@suse.de> X-Mailer: git-send-email 2.43.0 In-Reply-To: <20231206125433.18420-1-tzimmermann@suse.de> References: <20231206125433.18420-1-tzimmermann@suse.de> Precedence: bulk X-Mailing-List: linux-efi@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-Rspamd-Queue-Id: B204321EFD X-Spam-Score: 3.49 X-Spamd-Result: default: False [3.49 / 50.00]; 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spf=softfail (smtp-out1.suse.de: 2a07:de40:b281:104:10:150:64:98 is neither permitted nor denied by domain of tzimmermann@suse.de) smtp.mailfrom=tzimmermann@suse.de X-Rspamd-Server: rspamd1 The header file contains the macro arch_ima_efi_boot_mode, which expands to use struct boot_params from . Many drivers include , but do not use boot parameters. Changes to bootparam.h or its included headers can easily trigger large, unnessary rebuilds of the kernel. Moving x86's arch_ima_efi_boot_mode to and including separates that dependency from the rest of the EFI interfaces. The only user is in ima_efi.c. As the file already declares a default value for arch_ima_efi_boot_mode, move this define into asm-generic for all other architectures. With arch_ima_efi_boot_mode removed from efi.h, can later be removed from further x86 header files. Signed-off-by: Thomas Zimmermann --- arch/x86/include/asm/efi.h | 3 --- arch/x86/include/asm/ima-efi.h | 12 ++++++++++++ include/asm-generic/Kbuild | 1 + include/asm-generic/ima-efi.h | 16 ++++++++++++++++ security/integrity/ima/ima_efi.c | 5 +---- 5 files changed, 30 insertions(+), 7 deletions(-) create mode 100644 arch/x86/include/asm/ima-efi.h create mode 100644 include/asm-generic/ima-efi.h diff --git a/arch/x86/include/asm/efi.h b/arch/x86/include/asm/efi.h index c4555b269a1b..99f31176c892 100644 --- a/arch/x86/include/asm/efi.h +++ b/arch/x86/include/asm/efi.h @@ -418,9 +418,6 @@ extern int __init efi_memmap_split_count(efi_memory_desc_t *md, extern void __init efi_memmap_insert(struct efi_memory_map *old_memmap, void *buf, struct efi_mem_range *mem); -#define arch_ima_efi_boot_mode \ - ({ extern struct boot_params boot_params; boot_params.secure_boot; }) - #ifdef CONFIG_EFI_RUNTIME_MAP int efi_get_runtime_map_size(void); int efi_get_runtime_map_desc_size(void); diff --git a/arch/x86/include/asm/ima-efi.h b/arch/x86/include/asm/ima-efi.h new file mode 100644 index 000000000000..3fe054937077 --- /dev/null +++ b/arch/x86/include/asm/ima-efi.h @@ -0,0 +1,12 @@ +/* SPDX-License-Identifier: GPL-2.0 */ +#ifndef _ASM_X86_IMA_EFI_H +#define _ASM_X86_IMA_EFI_H + +#include + +#define arch_ima_efi_boot_mode \ + ({ extern struct boot_params boot_params; boot_params.secure_boot; }) + +#include + +#endif /* _ASM_X86_IMA_EFI_H */ diff --git a/include/asm-generic/Kbuild b/include/asm-generic/Kbuild index def242528b1d..4fd16e71e8cd 100644 --- a/include/asm-generic/Kbuild +++ b/include/asm-generic/Kbuild @@ -26,6 +26,7 @@ mandatory-y += ftrace.h mandatory-y += futex.h mandatory-y += hardirq.h mandatory-y += hw_irq.h +mandatory-y += ima-efi.h mandatory-y += io.h mandatory-y += irq.h mandatory-y += irq_regs.h diff --git a/include/asm-generic/ima-efi.h b/include/asm-generic/ima-efi.h new file mode 100644 index 000000000000..f87f5edef440 --- /dev/null +++ b/include/asm-generic/ima-efi.h @@ -0,0 +1,16 @@ +/* SPDX-License-Identifier: GPL-2.0+ */ + +#ifndef __ASM_GENERIC_IMA_EFI_H_ +#define __ASM_GENERIC_IMA_EFI_H_ + +#include + +/* + * Only include this header file from your architecture's . + */ + +#ifndef arch_ima_efi_boot_mode +#define arch_ima_efi_boot_mode efi_secureboot_mode_unset +#endif + +#endif /* __ASM_GENERIC_FB_H_ */ diff --git a/security/integrity/ima/ima_efi.c b/security/integrity/ima/ima_efi.c index 138029bfcce1..56bbee271cec 100644 --- a/security/integrity/ima/ima_efi.c +++ b/security/integrity/ima/ima_efi.c @@ -6,10 +6,7 @@ #include #include #include - -#ifndef arch_ima_efi_boot_mode -#define arch_ima_efi_boot_mode efi_secureboot_mode_unset -#endif +#include static enum efi_secureboot_mode get_sb_mode(void) { From patchwork Wed Dec 6 12:38:39 2023 Content-Type: text/plain; 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Wed, 06 Dec 2023 12:54:36 +0000 From: Thomas Zimmermann To: ardb@kernel.org, tglx@linutronix.de, mingo@redhat.com, bp@alien8.de, dave.hansen@linux.intel.com, x86@kernel.org, hpa@zytor.com, bhelgaas@google.com, arnd@arndb.de, zohar@linux.ibm.com, dmitry.kasatkin@gmail.com, paul@paul-moore.com, jmorris@namei.org, serge@hallyn.com, javierm@redhat.com Cc: linux-arch@vger.kernel.org, linux-efi@vger.kernel.org, linux-kernel@vger.kernel.org, linux-pci@vger.kernel.org, linux-integrity@vger.kernel.org, linux-security-module@vger.kernel.org, Thomas Zimmermann Subject: [PATCH 3/3] arch/x86: Do not include in several header files Date: Wed, 6 Dec 2023 13:38:39 +0100 Message-ID: <20231206125433.18420-4-tzimmermann@suse.de> X-Mailer: git-send-email 2.43.0 In-Reply-To: <20231206125433.18420-1-tzimmermann@suse.de> References: <20231206125433.18420-1-tzimmermann@suse.de> Precedence: bulk X-Mailing-List: linux-efi@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-Spam-Score: 3.40 Authentication-Results: smtp-out2.suse.de; none X-Spamd-Result: default: False [3.40 / 50.00]; ARC_NA(0.00)[]; RCVD_VIA_SMTP_AUTH(0.00)[]; BAYES_HAM(-3.00)[100.00%]; FROM_HAS_DN(0.00)[]; TO_DN_SOME(0.00)[]; FREEMAIL_ENVRCPT(0.00)[gmail.com]; R_MISSING_CHARSET(2.50)[]; TAGGED_RCPT(0.00)[]; MIME_GOOD(-0.10)[text/plain]; BROKEN_CONTENT_TYPE(1.50)[]; TO_MATCH_ENVRCPT_ALL(0.00)[]; R_RATELIMIT(0.00)[to_ip_from(RLthqzz6q5hnubohss7ffybi86)]; RCVD_COUNT_THREE(0.00)[3]; DKIM_SIGNED(0.00)[suse.de:s=susede2_rsa,suse.de:s=susede2_ed25519]; RCPT_COUNT_TWELVE(0.00)[22]; MID_CONTAINS_FROM(1.00)[]; DBL_BLOCKED_OPENRESOLVER(0.00)[suse.de:email]; FREEMAIL_TO(0.00)[kernel.org,linutronix.de,redhat.com,alien8.de,linux.intel.com,zytor.com,google.com,arndb.de,linux.ibm.com,gmail.com,paul-moore.com,namei.org,hallyn.com]; FUZZY_BLOCKED(0.00)[rspamd.com]; FROM_EQ_ENVFROM(0.00)[]; MIME_TRACE(0.00)[0:+]; RCVD_TLS_ALL(0.00)[]; SUSPICIOUS_RECIPS(1.50)[] Remove the include statement for from several header files that don't require it. Limits the exposure of the boot parameters within the Linux kernel code. Signed-off-by: Thomas Zimmermann Acked-by: Ard Biesheuvel --- arch/x86/include/asm/kexec.h | 1 - arch/x86/include/asm/mem_encrypt.h | 2 +- arch/x86/include/asm/sev.h | 3 ++- arch/x86/include/asm/x86_init.h | 2 -- 4 files changed, 3 insertions(+), 5 deletions(-) diff --git a/arch/x86/include/asm/kexec.h b/arch/x86/include/asm/kexec.h index c9f6a6c5de3c..91ca9a9ee3a2 100644 --- a/arch/x86/include/asm/kexec.h +++ b/arch/x86/include/asm/kexec.h @@ -25,7 +25,6 @@ #include #include -#include struct kimage; diff --git a/arch/x86/include/asm/mem_encrypt.h b/arch/x86/include/asm/mem_encrypt.h index 359ada486fa9..c1a8a3408c18 100644 --- a/arch/x86/include/asm/mem_encrypt.h +++ b/arch/x86/include/asm/mem_encrypt.h @@ -15,7 +15,7 @@ #include #include -#include +struct boot_params; #ifdef CONFIG_X86_MEM_ENCRYPT void __init mem_encrypt_init(void); diff --git a/arch/x86/include/asm/sev.h b/arch/x86/include/asm/sev.h index 5b4a1ce3d368..8dad8b1613bf 100644 --- a/arch/x86/include/asm/sev.h +++ b/arch/x86/include/asm/sev.h @@ -13,7 +13,6 @@ #include #include -#include #include #define GHCB_PROTOCOL_MIN 1ULL @@ -22,6 +21,8 @@ #define VMGEXIT() { asm volatile("rep; vmmcall\n\r"); } +struct boot_params; + enum es_result { ES_OK, /* All good */ ES_UNSUPPORTED, /* Requested operation not supported */ diff --git a/arch/x86/include/asm/x86_init.h b/arch/x86/include/asm/x86_init.h index c878616a18b8..f062715578a0 100644 --- a/arch/x86/include/asm/x86_init.h +++ b/arch/x86/include/asm/x86_init.h @@ -2,8 +2,6 @@ #ifndef _ASM_X86_PLATFORM_H #define _ASM_X86_PLATFORM_H -#include - struct ghcb; struct mpc_bus; struct mpc_cpu;