[PATCH v2 6/8] riscv: Enable memory hotplugging for RISC-V

From: "Björn Töpel" <bjorn@kernel.org>
To: Alexandre Ghiti <alexghiti@rivosinc.com>,
	Albert Ou <aou@eecs.berkeley.edu>,
	David Hildenbrand <david@redhat.com>,
	Palmer Dabbelt <palmer@dabbelt.com>,
	Paul Walmsley <paul.walmsley@sifive.com>,
	linux-riscv@lists.infradead.org
Cc: "Lorenzo Stoakes" <lstoakes@gmail.com>,
	"Chethan Seshadri" <Chethan.Seshadri@catalinasystems.io>,
	linux-kernel@vger.kernel.org,
	"Andrew Bresticker" <abrestic@rivosinc.com>,
	"Björn Töpel" <bjorn@rivosinc.com>,
	"Santosh Mamila" <santosh.mamila@catalinasystems.io>,
	linux-mm@kvack.org,
	"Sivakumar Munnangi" <siva.munnangi@catalinasystems.io>,
	virtualization@lists.linux-foundation.org,
	"Oscar Salvador" <osalvador@suse.de>
Subject: [PATCH v2 6/8] riscv: Enable memory hotplugging for RISC-V
Date: Tue, 14 May 2024 16:04:44 +0200	[thread overview]
Message-ID: <20240514140446.538622-7-bjorn@kernel.org> (raw)
In-Reply-To: <20240514140446.538622-1-bjorn@kernel.org>

From: Björn Töpel <bjorn@rivosinc.com>

Enable ARCH_ENABLE_MEMORY_HOTPLUG and ARCH_ENABLE_MEMORY_HOTREMOVE for
RISC-V.

Signed-off-by: Björn Töpel <bjorn@rivosinc.com>
---
 arch/riscv/Kconfig | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/arch/riscv/Kconfig b/arch/riscv/Kconfig
index 6bec1bce6586..b9398b64bb69 100644
--- a/arch/riscv/Kconfig
+++ b/arch/riscv/Kconfig
@@ -16,6 +16,8 @@ config RISCV
 	select ACPI_REDUCED_HARDWARE_ONLY if ACPI
 	select ARCH_DMA_DEFAULT_COHERENT
 	select ARCH_ENABLE_HUGEPAGE_MIGRATION if HUGETLB_PAGE && MIGRATION
+	select ARCH_ENABLE_MEMORY_HOTPLUG if SPARSEMEM && 64BIT && MMU
+	select ARCH_ENABLE_MEMORY_HOTREMOVE if MEMORY_HOTPLUG
 	select ARCH_ENABLE_SPLIT_PMD_PTLOCK if PGTABLE_LEVELS > 2
 	select ARCH_ENABLE_THP_MIGRATION if TRANSPARENT_HUGEPAGE
 	select ARCH_HAS_BINFMT_FLAT
-- 
2.40.1


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