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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>,
	 Kevin Loughlin <kevinloughlin@google.com>,
	Tom Lendacky <thomas.lendacky@amd.com>,
	 Josh Poimboeuf <jpoimboe@kernel.org>,
	Peter Zijlstra <peterz@infradead.org>,
	 Nikunj A Dadhania <nikunj@amd.com>
Subject: [PATCH v6 22/22] x86/boot: Get rid of the .head.text section
Date: Tue, 22 Jul 2025 09:27:31 +0200	[thread overview]
Message-ID: <20250722072708.2079165-46-ardb+git@google.com> (raw)
In-Reply-To: <20250722072708.2079165-24-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:[~2025-07-22  7:30 UTC|newest]

Thread overview: 37+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2025-07-22  7:27 [PATCH v6 00/22] x86: strict separation of startup code Ard Biesheuvel
2025-07-22  7:27 ` [PATCH v6 01/22] x86/sev: Separate MSR and GHCB based snp_cpuid() via a callback Ard Biesheuvel
2025-07-22  7:27 ` [PATCH v6 02/22] x86/sev: Use MSR protocol for remapping SVSM calling area Ard Biesheuvel
2025-07-22  7:27 ` [PATCH v6 03/22] x86/sev: Use MSR protocol only for early SVSM PVALIDATE call Ard Biesheuvel
2025-07-29 13:48   ` Tom Lendacky
2025-07-22  7:27 ` [PATCH v6 04/22] x86/sev: Run RMPADJUST on SVSM calling area page to test VMPL Ard Biesheuvel
2025-07-22  7:27 ` [PATCH v6 05/22] x86/sev: Move GHCB page based HV communication out of startup code Ard Biesheuvel
2025-07-22  7:27 ` [PATCH v6 06/22] x86/sev: Avoid global variable to store virtual address of SVSM area Ard Biesheuvel
2025-07-22  7:27 ` [PATCH v6 07/22] x86/sev: Share implementation of MSR-based page state change Ard Biesheuvel
2025-07-22  7:27 ` [PATCH v6 08/22] x86/sev: Pass SVSM calling area down to early page state change API Ard Biesheuvel
2025-08-10 20:36   ` Borislav Petkov
2025-07-22  7:27 ` [PATCH v6 09/22] x86/sev: Use boot SVSM CA for all startup and init code Ard Biesheuvel
2025-07-22  7:27 ` [PATCH v6 10/22] x86/boot: Drop redundant RMPADJUST in SEV SVSM presence check Ard Biesheuvel
2025-08-11  6:30   ` Borislav Petkov
2025-08-28  7:36     ` Ard Biesheuvel
2025-08-28 14:47       ` Borislav Petkov
2025-07-22  7:27 ` [PATCH v6 11/22] x86/boot: Provide PIC aliases for 5-level paging related constants Ard Biesheuvel
2025-07-22  7:27 ` [PATCH v6 12/22] x86/sev: Provide PIC aliases for SEV related data objects Ard Biesheuvel
2025-07-22  7:27 ` [PATCH v6 13/22] x86/sev: Move __sev_[get|put]_ghcb() into separate noinstr object Ard Biesheuvel
2025-07-22  7:27 ` [PATCH v6 14/22] x86/sev: Export startup routines for later use Ard Biesheuvel
2025-07-22  7:27 ` [PATCH v6 15/22] objtool: Add action to check for absence of absolute relocations Ard Biesheuvel
2025-08-11  7:20   ` Borislav Petkov
2025-07-22  7:27 ` [PATCH v6 16/22] x86/boot: Check startup code " Ard Biesheuvel
2025-07-22  7:27 ` [PATCH v6 17/22] x86/boot: Revert "Reject absolute references in .head.text" Ard Biesheuvel
2025-07-22  7:27 ` [PATCH v6 18/22] x86/kbuild: Incorporate boot/startup/ via Kbuild makefile Ard Biesheuvel
2025-07-22  7:27 ` [PATCH v6 19/22] x86/boot: Create a confined code area for startup code Ard Biesheuvel
2025-08-11 10:19   ` Borislav Petkov
2025-07-22  7:27 ` [PATCH v6 20/22] efistub/x86: Remap inittext read-execute when needed Ard Biesheuvel
2025-07-22  7:27 ` [PATCH v6 21/22] x86/boot: Move startup code out of __head section Ard Biesheuvel
2025-08-11 17:40   ` Borislav Petkov
2025-08-11 18:05     ` Tom Lendacky
2025-08-11 19:03       ` Borislav Petkov
2025-08-14 17:17         ` Tom Lendacky
2025-08-28  6:50           ` Ard Biesheuvel
2025-08-28  6:55             ` Ard Biesheuvel
2025-07-22  7:27 ` Ard Biesheuvel [this message]
2025-08-11 14:17 ` [PATCH v6 00/22] x86: strict separation of startup code Borislav Petkov

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