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From: Marc Zyngier <maz@kernel.org>
To: Fuad Tabba <fuad.tabba@linux.dev>
Cc: oupton@kernel.org, kvmarm@lists.linux.dev,
	linux-arm-kernel@lists.infradead.org,
	linux-kernel@vger.kernel.org, catalin.marinas@arm.com,
	will@kernel.org, joey.gouly@arm.com, seiden@linux.ibm.com,
	suzuki.poulose@arm.com, yuzenghui@huawei.com,
	mark.rutland@arm.com, vdonnefort@google.com, qperret@google.com,
	Sascha.Bischoff@arm.com, steven.price@arm.com, tabba@google.com
Subject: Re: [PATCH 1/7] KVM: arm64: Reject the GICv5 CPU interface hypercalls under pKVM
Date: Tue, 15 Sep 2026 15:02:25 +0100	[thread overview]
Message-ID: <86v78662a6.wl-maz@kernel.org> (raw)
In-Reply-To: <20260915123846.2317931-2-fuad.tabba@linux.dev>

On Tue, 15 Sep 2026 13:38:40 +0100,
Fuad Tabba <fuad.tabba@linux.dev> wrote:
>

[...]

> diff --git a/arch/arm64/kvm/hyp/nvhe/hyp-main.c b/arch/arm64/kvm/hyp/nvhe/hyp-main.c
> index 9a3b92e626adb..7c939baf9c1ba 100644
> --- a/arch/arm64/kvm/hyp/nvhe/hyp-main.c
> +++ b/arch/arm64/kvm/hyp/nvhe/hyp-main.c
> @@ -911,6 +911,8 @@ static const hcall_t host_hcall[] = {
>  	HANDLE_FUNC(__kvm_enable_ssbs),
>  	HANDLE_FUNC(__vgic_v3_init_lrs),
>  	HANDLE_FUNC(__vgic_v3_get_gic_config),
> +	HANDLE_FUNC(__vgic_v5_save_apr),
> +	HANDLE_FUNC(__vgic_v5_restore_vmcr_apr),
>  	HANDLE_FUNC(__pkvm_prot_finalize),
>  
>  	HANDLE_FUNC(__kvm_adjust_pc),
> @@ -932,8 +934,6 @@ static const hcall_t host_hcall[] = {
>  	HANDLE_FUNC(__tracing_write_event),
>  	HANDLE_FUNC(__vgic_v3_save_aprs),
>  	HANDLE_FUNC(__vgic_v3_restore_vmcr_aprs),
> -	HANDLE_FUNC(__vgic_v5_save_apr),
> -	HANDLE_FUNC(__vgic_v5_restore_vmcr_apr),
>  
>  	HANDLE_FUNC(__pkvm_host_share_hyp),
>  	HANDLE_FUNC(__pkvm_host_unshare_hyp),

Why moving things in the array? The whole point of HANDLE_FUNC() is to
abstract the position.

	M.

-- 
Without deviation from the norm, progress is not possible.

  reply	other threads:[~2026-09-15 14:02 UTC|newest]

Thread overview: 10+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2026-09-15 12:38 [PATCH 0/7] KVM: arm64: pKVM host hypercall and GICv5 CPU interface fixes Fuad Tabba
2026-09-15 12:38 ` [PATCH 1/7] KVM: arm64: Reject the GICv5 CPU interface hypercalls under pKVM Fuad Tabba
2026-09-15 14:02   ` Marc Zyngier [this message]
2026-09-15 14:12     ` Fuad Tabba
2026-09-15 12:38 ` [PATCH 2/7] KVM: arm64: Reject the stage-2 flush " Fuad Tabba
2026-09-15 12:38 ` [PATCH 3/7] KVM: arm64: Validate the host-provided vgic model in pKVM Fuad Tabba
2026-09-15 12:38 ` [PATCH 4/7] KVM: arm64: Validate the host vCPU's VM before reading it under pKVM Fuad Tabba
2026-09-15 12:38 ` [PATCH 5/7] KVM: arm64: Pin the host vCPU before adjusting its PC " Fuad Tabba
2026-09-15 12:38 ` [PATCH 6/7] KVM: arm64: vgic: Do not access the GICv5 CPU interface from EL1 Fuad Tabba
2026-09-15 12:38 ` [PATCH 7/7] KVM: arm64: Fix stale VGICv3 comments in the nVHE world switch Fuad Tabba

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