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From: Suzuki K Poulose <suzuki.poulose@arm.com>
To: Marc Zyngier <marc.zyngier@arm.com>
Cc: kvm@vger.kernel.org, linux-arm-kernel@lists.infradead.org,
	kvmarm@lists.cs.columbia.edu
Subject: Re: [PATCH 2/2] KVM: arm64: Drop __cpu_init_stage2 on the VHE path
Date: Mon, 1 Oct 2018 17:13:27 +0100	[thread overview]
Message-ID: <22605c91-53f1-239d-e6bf-1d9cf617bdbb@arm.com> (raw)
In-Reply-To: <20181001130656.36999-3-marc.zyngier@arm.com>

Marc,

On 10/01/2018 02:06 PM, Marc Zyngier wrote:
> __cpu_init_stage2 doesn't do anything anymore on arm64, and is
> totally non-sensical if running VHE (as VHE is 64bit only).
> 
> Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>
> ---
>   virt/kvm/arm/arm.c | 10 ++--------
>   1 file changed, 2 insertions(+), 8 deletions(-)
> 
> diff --git a/virt/kvm/arm/arm.c b/virt/kvm/arm/arm.c
> index 91c464c9cd21..4ce99bb223bc 100644
> --- a/virt/kvm/arm/arm.c
> +++ b/virt/kvm/arm/arm.c
> @@ -1310,16 +1310,10 @@ static void cpu_hyp_reinit(void)
>   {
>   	cpu_hyp_reset();
>   
> -	if (is_kernel_in_hyp_mode()) {
> -		/*
> -		 * __cpu_init_stage2() is safe to call even if the PM
> -		 * event was cancelled before the CPU was reset.
> -		 */
> -		__cpu_init_stage2();
> +	if (is_kernel_in_hyp_mode())
>   		kvm_timer_init_vhe();

The patch looks good to me. However, if we ever add something there in
the future, this caller site could be lost. Is it worth a comment ?

Besides,

Reviewed-by: Suzuki K Poulose <suzuki.poulose@arm.com>

  reply	other threads:[~2018-10-01 16:12 UTC|newest]

Thread overview: 7+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2018-10-01 13:06 [PATCH 0/2] KVM: arm64: Dynamic IPA cosmetic fixups Marc Zyngier
2018-10-01 13:06 ` [PATCH 1/2] KVM: arm/arm64: Rename kvm_arm_config_vm to kvm_arm_setup_stage2 Marc Zyngier
2018-10-01 15:45   ` Suzuki K Poulose
2018-10-02  8:39   ` Auger Eric
2018-10-01 13:06 ` [PATCH 2/2] KVM: arm64: Drop __cpu_init_stage2 on the VHE path Marc Zyngier
2018-10-01 16:13   ` Suzuki K Poulose [this message]
2018-10-02  8:41   ` Auger Eric

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