linux-kernel - [RFC v1 3/3] luo: x86: Enable live update support

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Message-ID: <20250320024011.2995837-4-pasha.tatashin@soleen.com>
Date: Thu, 20 Mar 2025 02:40:11 +0000
From: Pasha Tatashin <pasha.tatashin@...een.com>
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Subject: [RFC v1 3/3] luo: x86: Enable live update support

Enable the Live Update Orchestrator for the x86 architecture.

It does so by selecting ARCH_SUPPORTS_LIVEUPDATE when KEXEC_HANDOVER is
available, signaling to the LUO core that the architecture provides the
necessary Kexec Handover functionality required for live updates.

Signed-off-by: Pasha Tatashin <pasha.tatashin@...een.com>
---
 arch/x86/Kconfig | 1 +
 1 file changed, 1 insertion(+)

diff --git a/arch/x86/Kconfig b/arch/x86/Kconfig
index acd180e3002f..a7497cc84fbb 100644
--- a/arch/x86/Kconfig
+++ b/arch/x86/Kconfig
@@ -29,6 +29,7 @@ config X86_64
 	select ARCH_SUPPORTS_INT128 if CC_HAS_INT128
 	select ARCH_SUPPORTS_PER_VMA_LOCK
 	select ARCH_SUPPORTS_HUGE_PFNMAP if TRANSPARENT_HUGEPAGE
+	select ARCH_SUPPORTS_LIVEUPDATE if KEXEC_HANDOVER
 	select HAVE_ARCH_SOFT_DIRTY
 	select MODULES_USE_ELF_RELA
 	select NEED_DMA_MAP_STATE
-- 
2.49.0.395.g12beb8f557-goog