linux-kernel - Re: [RFC PATCH 15/16] RISC-V: KVM: Add SBI v0.1 support

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Message-ID: <b461c82f-960a-306e-b76b-f2c329cabf21@redhat.com>
Date:   Mon, 29 Jul 2019 21:40:45 +0200
From:   Paolo Bonzini <pbonzini@...hat.com>
To:     Anup Patel <Anup.Patel@....com>,
        Palmer Dabbelt <palmer@...ive.com>,
        Paul Walmsley <paul.walmsley@...ive.com>,
        Radim K <rkrcmar@...hat.com>
Cc:     Daniel Lezcano <daniel.lezcano@...aro.org>,
        Thomas Gleixner <tglx@...utronix.de>,
        Atish Patra <Atish.Patra@....com>,
        Alistair Francis <Alistair.Francis@....com>,
        Damien Le Moal <Damien.LeMoal@....com>,
        Christoph Hellwig <hch@...radead.org>,
        Anup Patel <anup@...infault.org>,
        "kvm@...r.kernel.org" <kvm@...r.kernel.org>,
        "linux-riscv@...ts.infradead.org" <linux-riscv@...ts.infradead.org>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>
Subject: Re: [RFC PATCH 15/16] RISC-V: KVM: Add SBI v0.1 support

On 29/07/19 13:57, Anup Patel wrote:
> +	csr_write(CSR_HSTATUS, vcpu->arch.guest_context.hstatus | HSTATUS_SPRV);
> +	csr_write(CSR_SSTATUS, vcpu->arch.guest_context.sstatus);
> +	val = *addr;

What happens if this load faults?

Paolo