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Message-ID: <20240605114100.315918-9-bjorn@kernel.org>
Date: Wed, 5 Jun 2024 13:40:51 +0200
From: Björn Töpel <bjorn@...nel.org>
To: Alexandre Ghiti <alexghiti@...osinc.com>,
Albert Ou <aou@...s.berkeley.edu>,
David Hildenbrand <david@...hat.com>,
Palmer Dabbelt <palmer@...belt.com>,
Paul Walmsley <paul.walmsley@...ive.com>,
linux-riscv@...ts.infradead.org,
Oscar Salvador <osalvador@...e.de>
Cc: Björn Töpel <bjorn@...osinc.com>,
Andrew Bresticker <abrestic@...osinc.com>,
Chethan Seshadri <Chethan.Seshadri@...alinasystems.io>,
Lorenzo Stoakes <lstoakes@...il.com>,
Santosh Mamila <santosh.mamila@...alinasystems.io>,
Sivakumar Munnangi <siva.munnangi@...alinasystems.io>,
Sunil V L <sunilvl@...tanamicro.com>,
linux-kernel@...r.kernel.org,
linux-mm@...ck.org,
virtualization@...ts.linux-foundation.org
Subject: [PATCH v4 08/11] riscv: Enable memory hotplugging for RISC-V
From: Björn Töpel <bjorn@...osinc.com>
Enable ARCH_ENABLE_MEMORY_HOTPLUG and ARCH_ENABLE_MEMORY_HOTREMOVE for
RISC-V.
Reviewed-by: Alexandre Ghiti <alexghiti@...osinc.com>
Signed-off-by: Björn Töpel <bjorn@...osinc.com>
---
arch/riscv/Kconfig | 3 +++
1 file changed, 3 insertions(+)
diff --git a/arch/riscv/Kconfig b/arch/riscv/Kconfig
index 0525ee2d63c7..8d860ad3b171 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_VMEMMAP
+ 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
@@ -46,6 +48,7 @@ config RISCV
select ARCH_HAS_UBSAN
select ARCH_HAS_VDSO_DATA
select ARCH_KEEP_MEMBLOCK if ACPI
+ select ARCH_MHP_MEMMAP_ON_MEMORY_ENABLE if 64BIT && MMU
select ARCH_OPTIONAL_KERNEL_RWX if ARCH_HAS_STRICT_KERNEL_RWX
select ARCH_OPTIONAL_KERNEL_RWX_DEFAULT
select ARCH_STACKWALK
--
2.43.0
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