From: Will Deacon <will@kernel.org>
To: Sean Christopherson <seanjc@google.com>
Cc: Catalin Marinas <catalin.marinas@arm.com>,
Marc Zyngier <maz@kernel.org>, James Morse <james.morse@arm.com>,
Alexandru Elisei <alexandru.elisei@arm.com>,
Suzuki K Poulose <suzuki.poulose@arm.com>,
linux-arm-kernel@lists.infradead.org,
kvmarm@lists.cs.columbia.edu, linux-kernel@vger.kernel.org
Subject: Re: [PATCH 2/2] KVM: arm64: Depend on HAVE_KVM => OF instead of directly on OF
Date: Wed, 29 Sep 2021 16:53:29 +0100 [thread overview]
Message-ID: <20210929155328.GD22029@willie-the-truck> (raw)
In-Reply-To: <20210921222231.518092-3-seanjc@google.com>
On Tue, Sep 21, 2021 at 03:22:31PM -0700, Sean Christopherson wrote:
> Select HAVE_KVM if the KVM dependency is met (OF / Open Firmware), and
> make KVM depend on HAVE_KVM instead of directly on OF. This fixes the
> oddity where arm64 configs can end up with KVM=y and HAVE_KVM=n, and will
> hopefully prevent breakage if there are future users of HAVE_KVM.
>
> Note, arm64 unconditionally selects OF, and has always done so (see
> commit 8c2c3df31e3b ("arm64: Build infrastructure"). Keep the somewhat
> pointless HAVE_KVM dependency on OF to document that KVM requires Open
> Firmware support.
>
> No functional change intended.
>
> Signed-off-by: Sean Christopherson <seanjc@google.com>
> ---
> arch/arm64/Kconfig | 1 +
> arch/arm64/kvm/Kconfig | 2 +-
> 2 files changed, 2 insertions(+), 1 deletion(-)
>
> diff --git a/arch/arm64/Kconfig b/arch/arm64/Kconfig
> index b5b13a932561..38c0f36a5ed4 100644
> --- a/arch/arm64/Kconfig
> +++ b/arch/arm64/Kconfig
> @@ -187,6 +187,7 @@ config ARM64
> select HAVE_GCC_PLUGINS
> select HAVE_HW_BREAKPOINT if PERF_EVENTS
> select HAVE_IRQ_TIME_ACCOUNTING
> + select HAVE_KVM if OF
Honestly, I'd just drop the 'if OF' here. We select it unconditionally a
few lines below and so I think it's more confusing to have the check.
With that:
Acked-by: Will Deacon <will@kernel.org>
Will
next prev parent reply other threads:[~2021-09-29 15:53 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-09-21 22:22 [PATCH 0/2] KVM: arm64: Clean up CONFIG_KVM vs CONFIG_HAVE_KVM Sean Christopherson
2021-09-21 22:22 ` [PATCH 1/2] KVM: arm64: Unconditionally include generic KVM's Kconfig Sean Christopherson
2021-09-21 22:22 ` [PATCH 2/2] KVM: arm64: Depend on HAVE_KVM => OF instead of directly on OF Sean Christopherson
2021-09-29 15:53 ` Will Deacon [this message]
2021-09-29 15:56 ` Sean Christopherson
2021-10-11 9:18 ` [PATCH 0/2] KVM: arm64: Clean up CONFIG_KVM vs CONFIG_HAVE_KVM Marc Zyngier
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=20210929155328.GD22029@willie-the-truck \
--to=will@kernel.org \
--cc=alexandru.elisei@arm.com \
--cc=catalin.marinas@arm.com \
--cc=james.morse@arm.com \
--cc=kvmarm@lists.cs.columbia.edu \
--cc=linux-arm-kernel@lists.infradead.org \
--cc=linux-kernel@vger.kernel.org \
--cc=maz@kernel.org \
--cc=seanjc@google.com \
--cc=suzuki.poulose@arm.com \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).