From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-1.web.codeaurora.org [10.30.226.201]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 8FA01180A63 for ; Tue, 14 May 2024 18:17:10 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=10.30.226.201 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1715710630; cv=none; b=CWm0mulDZJ+SlgspCfZ9o4QGuI9P1njbYQ9pUMM4YBGZWgHmthf2x9ki/iPvh2Z0BD4KDFTaxJchsTN34ReB1HLP1dmafCd6GbvoX8jJ+48dMmBcQIdamwMGnD652/h43j9KUZhv8MS++auqwRVN8uqWoxcdk7pYMRrehX4DPL0= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1715710630; c=relaxed/simple; bh=uzmplbv5D7iNpVC5UJ5KWf/1DYXGoJz78n4vD8h3RCI=; h=From:To:Cc:Subject:In-Reply-To:References:Date:Message-ID: MIME-Version:Content-Type; b=ekDAZ/V5QN1GVfa8bIiQKYbwop2zstMXVpWPp0nzhD1g+clGPjFfGm4Xsxdgnx0UjlqCcjf166lENIuconztGWSbUcM7jmJDr9aR2jfZ/sPEwRujtM8UBsC/bdiDmdxY894jtNFlfM9H7gDLoW72DioofVeeOor1I9EymUJf6Y0= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=u38RF5v7; arc=none smtp.client-ip=10.30.226.201 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b="u38RF5v7" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 144BBC32782; Tue, 14 May 2024 18:17:08 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1715710630; bh=uzmplbv5D7iNpVC5UJ5KWf/1DYXGoJz78n4vD8h3RCI=; h=From:To:Cc:Subject:In-Reply-To:References:Date:From; b=u38RF5v7U/Hj9CZLp1QiPYeERCnEJgoh07ZTr+NKJv4kYr6gTe+D0EMu11P6CY8WM /VfOglY7oR6cehdaIV8d5RfRqP3YkvRPS6ZuFytkN9ntM2JD3fnW9WVcVZX+YPfn1s V1JJgAkfMSmbtlqYqWLmuCpUHKlabxHwkmygy68bRl7MFYxLgZpGDfOSgKNIgHLLS6 mJphqO0rTj088VEgKiFLU+djfgj7UyrKYsvnbKp7uj9Pp5HYfONWTVRtwLk6i+/rs7 AKsfNR1dGyB4iibT2WBW09lq69oEBj3rFdo/HNilveyC2k1vfSie5VIQtaj4urzRoD 5YC3msP+vLJjQ== From: =?utf-8?B?QmrDtnJuIFTDtnBlbA==?= To: Alexandre Ghiti Cc: Albert Ou , David Hildenbrand , Palmer Dabbelt , Paul Walmsley , linux-riscv@lists.infradead.org, =?utf-8?B?QmrDtnJuIFTDtnBlbA==?= , Andrew Bresticker , Chethan Seshadri , Lorenzo Stoakes , Oscar Salvador , Santosh Mamila , Sivakumar Munnangi , Sunil V L , linux-kernel@vger.kernel.org, linux-mm@kvack.org, virtualization@lists.linux-foundation.org Subject: Re: [PATCH v2 6/8] riscv: Enable memory hotplugging for RISC-V In-Reply-To: References: <20240514140446.538622-1-bjorn@kernel.org> <20240514140446.538622-7-bjorn@kernel.org> Date: Tue, 14 May 2024 20:17:05 +0200 Message-ID: <87r0e4l0m6.fsf@all.your.base.are.belong.to.us> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: quoted-printable Alexandre Ghiti writes: > On Tue, May 14, 2024 at 4:05=E2=80=AFPM Bj=C3=B6rn T=C3=B6pel wrote: >> >> From: Bj=C3=B6rn T=C3=B6pel >> >> Enable ARCH_ENABLE_MEMORY_HOTPLUG and ARCH_ENABLE_MEMORY_HOTREMOVE for >> RISC-V. >> >> Signed-off-by: Bj=C3=B6rn T=C3=B6pel >> --- >> 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 && MIGRATI= ON >> + select ARCH_ENABLE_MEMORY_HOTPLUG if SPARSEMEM && 64BIT && MMU > > I think this should be SPARSEMEM_VMEMMAP here. Hmm, care to elaborate? I thought that was optional.