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Subject: Re: [RFC PATCH v2 12/19] RISC-V: KVM: Implement stage2 page table
 programming
To:     Anup Patel <Anup.Patel@wdc.com>,
        Palmer Dabbelt <palmer@sifive.com>,
        Paul Walmsley <paul.walmsley@sifive.com>,
        Radim K <rkrcmar@redhat.com>
Cc:     Daniel Lezcano <daniel.lezcano@linaro.org>,
        Thomas Gleixner <tglx@linutronix.de>,
        Atish Patra <Atish.Patra@wdc.com>,
        Alistair Francis <Alistair.Francis@wdc.com>,
        Damien Le Moal <Damien.LeMoal@wdc.com>,
        Christoph Hellwig <hch@infradead.org>,
        Anup Patel <anup@brainfault.org>,
        "kvm@vger.kernel.org" <kvm@vger.kernel.org>,
        "linux-riscv@lists.infradead.org" <linux-riscv@lists.infradead.org>,
        "linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>
References: <20190802074620.115029-1-anup.patel@wdc.com>
 <20190802074620.115029-13-anup.patel@wdc.com>
From:   Paolo Bonzini <pbonzini@redhat.com>
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Date:   Fri, 2 Aug 2019 11:14:41 +0200
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On 02/08/19 09:48, Anup Patel wrote:
> +	hgatp |= (k->vmid.vmid << HGATP_VMID_SHIFT) & HGATP_VMID_MASK;

This should use READ_ONCE.

Paolo

> +	hgatp |= (k->pgd_phys >> PAGE_SHIFT) & HGATP_PPN;