From: Will Deacon <will@kernel.org>
To: Anshuman Khandual <anshuman.khandual@arm.com>
Cc: linux-arm-kernel@lists.infradead.org,
Marc Zyngier <maz@kernel.org>, James Morse <james.morse@arm.com>,
Alexandru Elisei <alexandru.elisei@arm.com>,
Suzuki K Poulose <suzuki.poulose@arm.com>,
Catalin Marinas <catalin.marinas@arm.com>,
kvmarm@lists.cs.columbia.edu, linux-kernel@vger.kernel.org
Subject: Re: [PATCH 2/5] KVM: arm64: Drop init_common_resources()
Date: Tue, 10 Aug 2021 14:21:24 +0100 [thread overview]
Message-ID: <20210810132123.GB2946@willie-the-truck> (raw)
In-Reply-To: <1628578961-29097-3-git-send-email-anshuman.khandual@arm.com>
On Tue, Aug 10, 2021 at 12:32:38PM +0530, Anshuman Khandual wrote:
> Could do without this additional indirection via init_common_resources() by
> just calling kvm_set_ipa_limit() directly instead. This change saves memory
> and cycles.
Does it? Really?
Will
> diff --git a/arch/arm64/kvm/arm.c b/arch/arm64/kvm/arm.c
> index e9a2b8f27792..19560e457c11 100644
> --- a/arch/arm64/kvm/arm.c
> +++ b/arch/arm64/kvm/arm.c
> @@ -1696,11 +1696,6 @@ static bool init_psci_relay(void)
> return true;
> }
>
> -static int init_common_resources(void)
> -{
> - return kvm_set_ipa_limit();
> -}
> -
> static int init_subsystems(void)
> {
> int err = 0;
> @@ -2102,7 +2097,7 @@ int kvm_arch_init(void *opaque)
> }
> }
>
> - err = init_common_resources();
> + err = kvm_set_ipa_limit();
> if (err)
> return err;
>
> --
> 2.20.1
>
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next prev parent reply other threads:[~2021-08-10 13:25 UTC|newest]
Thread overview: 20+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-08-10 7:02 [PATCH 0/5] KVM: arm64: General cleanups Anshuman Khandual
2021-08-10 7:02 ` [PATCH 1/5] KVM: arm64: Drop direct PAGE_[SHIFT|SIZE] usage as page size Anshuman Khandual
2021-08-10 13:20 ` Will Deacon
2021-08-11 5:32 ` Anshuman Khandual
2021-08-10 13:33 ` Marc Zyngier
2021-08-11 5:34 ` Anshuman Khandual
2021-08-11 8:11 ` Marc Zyngier
2021-08-11 9:37 ` Anshuman Khandual
2021-08-11 10:13 ` Marc Zyngier
2021-08-10 7:02 ` [PATCH 2/5] KVM: arm64: Drop init_common_resources() Anshuman Khandual
2021-08-10 13:21 ` Will Deacon [this message]
2021-08-10 15:11 ` Anshuman Khandual
2021-08-10 7:02 ` [PATCH 3/5] KVM: arm64: Drop check_kvm_target_cpu() based percpu probe Anshuman Khandual
2021-08-10 13:28 ` Will Deacon
2021-08-11 5:54 ` Anshuman Khandual
2021-08-10 7:02 ` [PATCH 4/5] KVM: arm64: Drop unused REQUIRES_VIRT Anshuman Khandual
2021-08-10 7:02 ` [PATCH 5/5] KVM: arm64: Define KVM_PHYS_SHIFT_MIN Anshuman Khandual
2021-08-10 13:29 ` Marc Zyngier
2021-08-10 15:19 ` Anshuman Khandual
2021-08-10 15:32 ` Marc Zyngier
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