[PATCH v4 08/11] riscv: Enable memory hotplugging for RISC-V

[Björn Töpel]

From: Björn Töpel <bj...@rivosinc.com>

Enable ARCH_ENABLE_MEMORY_HOTPLUG and ARCH_ENABLE_MEMORY_HOTREMOVE for
RISC-V.

Reviewed-by: Alexandre Ghiti <alexgh...@rivosinc.com>
Signed-off-by: Björn Töpel <bj...@rivosinc.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