linux-kernel - Re: [PATCH v6 5/6] KVM: arm64: nvhe: Pass through PSCI v1.3 SYSTEM

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Message-ID: <29F1BA71-4271-4D95-A8C6-3A2F54EE72D9@oracle.com>
Date: Thu, 24 Oct 2024 10:42:34 +0000
From: Miguel Luis <miguel.luis@...cle.com>
To: David Woodhouse <dwmw2@...radead.org>
CC: Paolo Bonzini <pbonzini@...hat.com>, Jonathan Corbet <corbet@....net>,
        Marc Zyngier <maz@...nel.org>, Oliver Upton <oliver.upton@...ux.dev>,
        James
 Morse <james.morse@....com>,
        Suzuki K Poulose <suzuki.poulose@....com>,
        Zenghui Yu <yuzenghui@...wei.com>,
        Catalin Marinas <catalin.marinas@....com>,
        Will Deacon <will@...nel.org>, Mark Rutland <mark.rutland@....com>,
        Lorenzo
 Pieralisi <lpieralisi@...nel.org>,
        "Rafael J. Wysocki" <rafael@...nel.org>, Pavel Machek <pavel@....cz>,
        Len Brown <len.brown@...el.com>, Shuah Khan
	<shuah@...nel.org>,
        David Woodhouse <dwmw@...zon.co.uk>,
        "kvm@...r.kernel.org" <kvm@...r.kernel.org>,
        "linux-doc@...r.kernel.org"
	<linux-doc@...r.kernel.org>,
        "linux-kernel@...r.kernel.org"
	<linux-kernel@...r.kernel.org>,
        "linux-arm-kernel@...ts.infradead.org"
	<linux-arm-kernel@...ts.infradead.org>,
        "kvmarm@...ts.linux.dev"
	<kvmarm@...ts.linux.dev>,
        "linux-pm@...r.kernel.org"
	<linux-pm@...r.kernel.org>,
        "linux-kselftest@...r.kernel.org"
	<linux-kselftest@...r.kernel.org>,
        Francesco Lavra
	<francescolavra.fl@...il.com>
Subject: Re: [PATCH v6 5/6] KVM: arm64: nvhe: Pass through PSCI v1.3
 SYSTEM_OFF2 call



> On 19 Oct 2024, at 17:15, David Woodhouse <dwmw2@...radead.org> wrote:
> 
> From: David Woodhouse <dwmw@...zon.co.uk>
> 
> Pass through the SYSTEM_OFF2 function for hibernation, just like SYSTEM_OFF.
> 
> Signed-off-by: David Woodhouse <dwmw@...zon.co.uk>
> ---
> arch/arm64/kvm/hyp/nvhe/psci-relay.c | 2 ++
> 1 file changed, 2 insertions(+)
> 
> diff --git a/arch/arm64/kvm/hyp/nvhe/psci-relay.c b/arch/arm64/kvm/hyp/nvhe/psci-relay.c
> index dfe8fe0f7eaf..9c2ce1e0e99a 100644
> --- a/arch/arm64/kvm/hyp/nvhe/psci-relay.c
> +++ b/arch/arm64/kvm/hyp/nvhe/psci-relay.c
> @@ -265,6 +265,8 @@ static unsigned long psci_1_0_handler(u64 func_id, struct kvm_cpu_context *host_
> case PSCI_1_0_FN_PSCI_FEATURES:
> case PSCI_1_0_FN_SET_SUSPEND_MODE:
> case PSCI_1_1_FN64_SYSTEM_RESET2:
> + case PSCI_1_3_FN_SYSTEM_OFF2:
> + case PSCI_1_3_FN64_SYSTEM_OFF2:

Reviewed-by: Miguel Luis <miguel.luis@...cle.com>

> return psci_forward(host_ctxt);
> case PSCI_1_0_FN64_SYSTEM_SUSPEND:
> return psci_system_suspend(func_id, host_ctxt);
> -- 
> 2.44.0
> 
>