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From: Ard Biesheuvel <ardb+git@google.com>
To: linux-kernel@vger.kernel.org
Cc: linux-efi@vger.kernel.org, x86@kernel.org,
	 Ard Biesheuvel <ardb@kernel.org>, Borislav Petkov <bp@alien8.de>,
	Ingo Molnar <mingo@kernel.org>,
	 Dionna Amalie Glaze <dionnaglaze@google.com>,
	Kevin Loughlin <kevinloughlin@google.com>,
	 Tom Lendacky <thomas.lendacky@amd.com>,
	Josh Poimboeuf <jpoimboe@kernel.org>,
	 Peter Zijlstra <peterz@infradead.org>
Subject: [PATCH v4 24/24] x86/boot: Get rid of the .head.text section
Date: Wed,  9 Jul 2025 10:09:05 +0200	[thread overview]
Message-ID: <20250709080840.2233208-50-ardb+git@google.com> (raw)
In-Reply-To: <20250709080840.2233208-26-ardb+git@google.com>

From: Ard Biesheuvel <ardb@kernel.org>

The .head.text section is now empty, so it can be dropped from the
linker script.

Signed-off-by: Ard Biesheuvel <ardb@kernel.org>
---
 arch/x86/kernel/vmlinux.lds.S | 5 -----
 1 file changed, 5 deletions(-)

diff --git a/arch/x86/kernel/vmlinux.lds.S b/arch/x86/kernel/vmlinux.lds.S
index 4277efb26358..d7af4a64c211 100644
--- a/arch/x86/kernel/vmlinux.lds.S
+++ b/arch/x86/kernel/vmlinux.lds.S
@@ -160,11 +160,6 @@ SECTIONS
 
 	} :text = 0xcccccccc
 
-	/* bootstrapping code */
-	.head.text : AT(ADDR(.head.text) - LOAD_OFFSET) {
-		HEAD_TEXT
-	} :text = 0xcccccccc
-
 	/* End of text section, which should occupy whole number of pages */
 	_etext = .;
 	. = ALIGN(PAGE_SIZE);
-- 
2.50.0.727.gbf7dc18ff4-goog


  parent reply	other threads:[~2025-07-09  8:11 UTC|newest]

Thread overview: 43+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2025-07-09  8:08 [PATCH v4 00/24] x86: strict separation of startup code Ard Biesheuvel
2025-07-09  8:08 ` [PATCH v4 01/24] x86/sev: Separate MSR and GHCB based snp_cpuid() via a callback Ard Biesheuvel
2025-07-09 15:12   ` Tom Lendacky
2025-07-09 23:21     ` Ard Biesheuvel
2025-07-11 20:59     ` Borislav Petkov
2025-07-12 14:54       ` Tom Lendacky
2025-07-12 15:02         ` Borislav Petkov
2025-07-09  8:08 ` [PATCH v4 02/24] x86/sev: Use MSR protocol for remapping SVSM calling area Ard Biesheuvel
2025-07-09  8:08 ` [PATCH v4 03/24] x86/sev: Use MSR protocol only for early SVSM PVALIDATE call Ard Biesheuvel
2025-07-09 15:50   ` Tom Lendacky
2025-07-09  8:08 ` [PATCH v4 04/24] x86/sev: Run RMPADJUST on SVSM calling area page to test VMPL Ard Biesheuvel
2025-07-09 16:13   ` Tom Lendacky
2025-07-09  8:08 ` [PATCH v4 05/24] x86/sev: Move GHCB page based HV communication out of startup code Ard Biesheuvel
2025-07-09  8:08 ` [PATCH v4 06/24] x86/sev: Avoid global variable to store virtual address of SVSM area Ard Biesheuvel
2025-07-09 17:49   ` Tom Lendacky
2025-07-09  8:08 ` [PATCH v4 07/24] x86/sev: Move MSR save/restore out of early page state change helper Ard Biesheuvel
2025-07-09 18:16   ` Tom Lendacky
2025-07-09  8:08 ` [PATCH v4 08/24] x86/sev: Share implementation of MSR-based page state change Ard Biesheuvel
2025-07-09 18:24   ` Tom Lendacky
2025-07-15  5:09     ` Ard Biesheuvel
2025-07-09  8:08 ` [PATCH v4 09/24] x86/sev: Pass SVSM calling area down to early page state change API Ard Biesheuvel
2025-07-09  8:08 ` [PATCH v4 10/24] x86/sev: Use boot SVSM CA for all startup and init code Ard Biesheuvel
2025-07-09  8:08 ` [PATCH v4 11/24] x86/boot: Drop redundant RMPADJUST in SEV SVSM presence check Ard Biesheuvel
2025-07-09  8:08 ` [PATCH v4 12/24] x86/sev: Unify SEV-SNP hypervisor feature check Ard Biesheuvel
2025-07-10  4:21   ` Nikunj A Dadhania
2025-07-10  4:24     ` Ard Biesheuvel
     [not found]       ` <85o6tsv8m2.fsf@amd.com>
2025-07-10  7:36         ` Ard Biesheuvel
2025-07-10  8:02           ` Nikunj A Dadhania
2025-07-09  8:08 ` [PATCH v4 13/24] x86/boot: Provide PIC aliases for 5-level paging related constants Ard Biesheuvel
2025-07-09  8:08 ` [PATCH v4 14/24] x86/sev: Provide PIC aliases for SEV related data objects Ard Biesheuvel
2025-07-09  8:08 ` [PATCH v4 15/24] x86/sev: Move __sev_[get|put]_ghcb() into separate noinstr object Ard Biesheuvel
2025-07-09  8:08 ` [PATCH v4 16/24] x86/sev: Export startup routines for later use Ard Biesheuvel
2025-07-09  8:08 ` [PATCH v4 17/24] objtool: Add action to check for absence of absolute relocations Ard Biesheuvel
2025-07-09  8:08 ` [PATCH v4 18/24] x86/boot: Check startup code " Ard Biesheuvel
2025-07-09  8:09 ` [PATCH v4 19/24] x86/boot: Revert "Reject absolute references in .head.text" Ard Biesheuvel
2025-07-09  8:09 ` [PATCH v4 20/24] x86/kbuild: Incorporate boot/startup/ via Kbuild makefile Ard Biesheuvel
2025-07-09  8:09 ` [PATCH v4 21/24] x86/boot: Create a confined code area for startup code Ard Biesheuvel
2025-07-09  8:09 ` [PATCH v4 22/24] efistub/x86: Remap inittext read-execute when needed Ard Biesheuvel
2025-07-09  8:09 ` [PATCH v4 23/24] x86/boot: Move startup code out of __head section Ard Biesheuvel
2025-07-09  8:09 ` Ard Biesheuvel [this message]
2025-07-09 10:23 ` [PATCH v4 00/24] x86: strict separation of startup code Kirill A. Shutemov
2025-07-09 10:32   ` Ard Biesheuvel
2025-07-09 14:01 ` Nikunj A Dadhania

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