From: Changyuan Lyu <changyuanl@google.com>
To: linux-kernel@vger.kernel.org
Cc: changyuanl@google.com, akpm@linux-foundation.org,
anthony.yznaga@oracle.com, arnd@arndb.de, ashish.kalra@amd.com,
benh@kernel.crashing.org, bp@alien8.de, catalin.marinas@arm.com,
corbet@lwn.net, dave.hansen@linux.intel.com,
devicetree@vger.kernel.org, dwmw2@infradead.org,
ebiederm@xmission.com, graf@amazon.com, hpa@zytor.com,
jgowans@amazon.com, kexec@lists.infradead.org, krzk@kernel.org,
linux-arm-kernel@lists.infradead.org, linux-doc@vger.kernel.org,
linux-mm@kvack.org, luto@kernel.org, mark.rutland@arm.com,
mingo@redhat.com, pasha.tatashin@soleen.com,
pbonzini@redhat.com, peterz@infradead.org, ptyadav@amazon.de,
robh@kernel.org, rostedt@goodmis.org, rppt@kernel.org,
saravanak@google.com, skinsburskii@linux.microsoft.com,
tglx@linutronix.de, thomas.lendacky@amd.com, will@kernel.org,
x86@kernel.org
Subject: [PATCH v7 15/18] x86/Kconfig: enable kexec handover for 64 bits
Date: Thu, 1 May 2025 15:54:22 -0700 [thread overview]
Message-ID: <20250501225425.635167-16-changyuanl@google.com> (raw)
In-Reply-To: <20250501225425.635167-1-changyuanl@google.com>
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 <changyuanl@google.com>
Signed-off-by: Changyuan Lyu <changyuanl@google.com>
---
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)
--
2.49.0.906.g1f30a19c02-goog
next prev parent reply other threads:[~2025-05-01 22:55 UTC|newest]
Thread overview: 30+ messages / expand[flat|nested] mbox.gz Atom feed top
2025-05-01 22:54 [PATCH v7 00/18] kexec: introduce Kexec HandOver (KHO) Changyuan Lyu
2025-05-01 22:54 ` [PATCH v7 01/18] memblock: add MEMBLOCK_RSRV_KERN flag Changyuan Lyu
2025-05-01 22:54 ` [PATCH v7 02/18] memblock: Add support for scratch memory Changyuan Lyu
2025-05-01 22:54 ` [PATCH v7 03/18] memblock: introduce memmap_init_kho_scratch() Changyuan Lyu
2025-05-01 22:54 ` [PATCH v7 04/18] kexec: add Kexec HandOver (KHO) generation helpers Changyuan Lyu
2025-05-01 22:54 ` [PATCH v7 05/18] kexec: add KHO parsing support Changyuan Lyu
2025-05-01 22:54 ` [PATCH v7 06/18] kexec: include asm/early_ioremap.h Changyuan Lyu
2025-05-02 0:35 ` Andrew Morton
2025-05-02 18:37 ` Changyuan Lyu
2025-05-01 22:54 ` [PATCH v7 07/18] kexec: enable KHO support for memory preservation Changyuan Lyu
2025-05-01 22:54 ` [PATCH v7 08/18] kexec: add KHO support to kexec file loads Changyuan Lyu
2025-05-01 22:54 ` [PATCH v7 09/18] kexec: add config option for KHO Changyuan Lyu
2025-05-01 22:54 ` [PATCH v7 10/18] arm64: add KHO support Changyuan Lyu
2025-05-01 22:54 ` [PATCH v7 11/18] x86/setup: use memblock_reserve_kern for memory used by kernel Changyuan Lyu
2025-05-01 22:54 ` [PATCH v7 12/18] x86/kexec: add support for passing kexec handover (KHO) data Changyuan Lyu
2025-05-02 18:39 ` Dave Hansen
2025-05-01 22:54 ` [PATCH v7 13/18] x86/e820: temporarily enable KHO scratch for memory below 1M Changyuan Lyu
2025-05-02 18:39 ` Dave Hansen
2025-05-01 22:54 ` [PATCH v7 14/18] x86/boot: make sure KASLR does not step over KHO preserved memory Changyuan Lyu
2025-05-02 18:48 ` Dave Hansen
2025-05-02 21:16 ` Mike Rapoport
2025-05-02 21:36 ` Dave Hansen
2025-05-05 20:07 ` Changyuan Lyu
2025-05-01 22:54 ` Changyuan Lyu [this message]
2025-05-01 22:54 ` [PATCH v7 16/18] memblock: add KHO support for reserve_mem Changyuan Lyu
2025-05-01 22:54 ` [PATCH v7 17/18] Documentation: add documentation for KHO Changyuan Lyu
2025-05-06 2:31 ` Bagas Sanjaya
2025-05-07 17:38 ` Changyuan Lyu
2025-05-07 23:54 ` Bagas Sanjaya
2025-05-01 22:54 ` [PATCH v7 18/18] Documentation: KHO: Add memblock bindings Changyuan Lyu
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