Thread (23 messages) 23 messages, 6 authors, 2025-12-11
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Revisions (3)
  1. v5 [diff vs current]
  2. v6 [diff vs current]
  3. v8 current

[PATCH v8 14/17] x86/Kconfig: enable kexec handover for 64 bits

From: Changyuan Lyu <hidden>
Date: 2025-05-09 07:47:21
Also in: kexec, linux-devicetree, linux-doc, linux-mm, lkml
Subsystem: the rest, x86 architecture (32-bit and 64-bit) · Maintainers: Linus Torvalds, Thomas Gleixner, Ingo Molnar, Borislav Petkov, Dave Hansen

From: Alexander Graf <graf@amazon.com>

Add ARCH_SUPPORTS_KEXEC_HANDOVER for 64 bits to allow enabling of
KEXEC_HANDOVER configuration option.

Signed-off-by: Alexander Graf <graf@amazon.com>
Co-developed-by: Mike Rapoport (Microsoft) <rppt@kernel.org>
Signed-off-by: Mike Rapoport (Microsoft) <rppt@kernel.org>
Co-developed-by: Changyuan Lyu <redacted>
Signed-off-by: Changyuan Lyu <redacted>
---
 arch/x86/Kconfig | 3 +++
 1 file changed, 3 insertions(+)
diff --git a/arch/x86/Kconfig b/arch/x86/Kconfig
index 4b9f378e05f6b..d1fb81ffdaafa 100644
--- a/arch/x86/Kconfig
+++ b/arch/x86/Kconfig
@@ -2029,6 +2029,9 @@ config ARCH_SUPPORTS_KEXEC_BZIMAGE_VERIFY_SIG
 config ARCH_SUPPORTS_KEXEC_JUMP
 	def_bool y
 
+config ARCH_SUPPORTS_KEXEC_HANDOVER
+	def_bool X86_64
+
 config ARCH_SUPPORTS_CRASH_DUMP
 	def_bool X86_64 || (X86_32 && HIGHMEM)
 
-- 
2.49.0.1015.ga840276032-goog

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