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From: Paolo Bonzini <pbonzini@redhat.com>
To: Atish Patra <Atish.Patra@wdc.com>,
	"paul.walmsley@sifive.com" <paul.walmsley@sifive.com>,
	"rkrcmar@redhat.com" <rkrcmar@redhat.com>,
	"palmer@sifive.com" <palmer@sifive.com>,
	Anup Patel <Anup.Patel@wdc.com>
Cc: Damien Le Moal <Damien.LeMoal@wdc.com>,
	"kvm@vger.kernel.org" <kvm@vger.kernel.org>,
	"anup@brainfault.org" <anup@brainfault.org>,
	"daniel.lezcano@linaro.org" <daniel.lezcano@linaro.org>,
	"linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>,
	"hch@infradead.org" <hch@infradead.org>,
	Alistair Francis <Alistair.Francis@wdc.com>,
	"linux-riscv@lists.infradead.org"
	<linux-riscv@lists.infradead.org>,
	"tglx@linutronix.de" <tglx@linutronix.de>
Subject: Re: [RFC PATCH 15/16] RISC-V: KVM: Add SBI v0.1 support
Date: Mon, 29 Jul 2019 22:08:32 +0200	[thread overview]
Message-ID: <b6c884cc-e156-d125-b3a2-c8a843de34c2@redhat.com> (raw)
In-Reply-To: <0e19ff14a51e210af91c4b0f2e649b8f5e140ce1.camel@wdc.com>

On 29/07/19 21:51, Atish Patra wrote:
> On Mon, 2019-07-29 at 21:40 +0200, Paolo Bonzini wrote:
>> 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?
>>
> 
> It should redirect the trap back to VS mode. Currently, it is not
> implemented. It is on the TO-DO list for future iteration of the
> series.

Ok, please add TODO comments for the more important tasks like this one
(and/or post a somewhat complete list in reply to 00/16).

Thanks!

Paolo


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  reply	other threads:[~2019-07-29 20:08 UTC|newest]

Thread overview: 67+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-07-29 11:56 [RFC PATCH 00/16] KVM RISC-V Support Anup Patel
2019-07-29 11:56 ` [RFC PATCH 01/16] KVM: RISC-V: Add KVM_REG_RISCV for ONE_REG interface Anup Patel
2019-07-29 11:56 ` [RFC PATCH 02/16] RISC-V: Add hypervisor extension related CSR defines Anup Patel
2019-07-29 11:56 ` [RFC PATCH 03/16] RISC-V: Add initial skeletal KVM support Anup Patel
2019-07-30  9:23   ` Paolo Bonzini
2019-07-30 11:04     ` Anup Patel
2019-07-30  9:25   ` Paolo Bonzini
2019-07-30 11:03     ` Anup Patel
2019-07-29 11:56 ` [RFC PATCH 04/16] RISC-V: KVM: Implement VCPU create, init and destroy functions Anup Patel
2019-07-30  8:48   ` Paolo Bonzini
2019-07-30 10:16     ` Paolo Bonzini
2019-07-30 11:45       ` Anup Patel
2019-07-30 11:47         ` Paolo Bonzini
2019-07-29 11:56 ` [RFC PATCH 05/16] RISC-V: KVM: Implement VCPU interrupts and requests handling Anup Patel
2019-07-30 11:17   ` Paolo Bonzini
2019-07-30 12:00     ` Anup Patel
2019-07-30 12:12       ` Paolo Bonzini
2019-07-30 12:45         ` Anup Patel
2019-07-30 13:18           ` Paolo Bonzini
2019-07-30 13:35             ` Anup Patel
2019-07-30 14:08               ` Paolo Bonzini
2019-08-02  3:59                 ` Anup Patel
2019-07-29 11:56 ` [RFC PATCH 06/16] RISC-V: KVM: Implement KVM_GET_ONE_REG/KVM_SET_ONE_REG ioctls Anup Patel
2019-07-30  8:43   ` Paolo Bonzini
2019-07-30  9:35     ` Paolo Bonzini
2019-07-30 12:08       ` Anup Patel
2019-07-30 12:10         ` Paolo Bonzini
2019-07-30 12:16           ` Anup Patel
2019-07-29 11:57 ` [RFC PATCH 07/16] RISC-V: KVM: Implement VCPU world-switch Anup Patel
2019-07-30  9:34   ` Paolo Bonzini
2019-07-30 12:51     ` Anup Patel
2019-07-29 11:57 ` [RFC PATCH 08/16] RISC-V: KVM: Handle MMIO exits for VCPU Anup Patel
2019-07-30 11:20   ` Paolo Bonzini
2019-07-31  7:23     ` Anup Patel
2019-07-29 11:57 ` [RFC PATCH 09/16] RISC-V: KVM: Handle WFI " Anup Patel
2019-07-29 11:57 ` [RFC PATCH 10/16] RISC-V: KVM: Implement VMID allocator Anup Patel
2019-07-30  8:59   ` Paolo Bonzini
2019-07-29 11:57 ` [RFC PATCH 11/16] RISC-V: KVM: Implement stage2 page table programming Anup Patel
2019-07-30  9:00   ` Paolo Bonzini
2019-07-30 12:14     ` Anup Patel
2019-07-29 11:57 ` [RFC PATCH 12/16] RISC-V: KVM: Implement MMU notifiers Anup Patel
2019-07-29 11:57 ` [RFC PATCH 13/16] RISC-V: KVM: Add timer functionality Anup Patel
2019-07-29 14:40   ` Andreas Schwab
2019-07-29 18:02     ` Atish Patra
2019-07-30  6:51       ` Andreas Schwab
2019-07-30  7:00         ` Atish Patra
2019-07-30 11:26   ` Paolo Bonzini
2019-07-31  1:55     ` Atish Patra
2019-07-31  6:58       ` Paolo Bonzini
2019-07-31  7:18         ` Anup Patel
2019-07-29 11:57 ` [RFC PATCH 14/16] RISC-V: KVM: FP lazy save/restore Anup Patel
2019-07-29 11:57 ` [RFC PATCH 15/16] RISC-V: KVM: Add SBI v0.1 support Anup Patel
2019-07-29 19:40   ` Paolo Bonzini
2019-07-29 19:51     ` Atish Patra
2019-07-29 20:08       ` Paolo Bonzini [this message]
2019-07-29 21:08         ` Atish Patra
2019-07-30  9:26   ` Paolo Bonzini
2019-07-29 11:58 ` [RFC PATCH 16/16] RISC-V: Enable VIRTIO drivers in RV64 and RV32 defconfig Anup Patel
2019-07-29 21:47 ` [RFC PATCH 00/16] KVM RISC-V Support Paolo Bonzini
2019-07-30  5:26   ` Anup Patel
2019-07-30 11:33     ` Paolo Bonzini
2019-07-30 13:50       ` Anup Patel
2019-07-30 14:02         ` Paolo Bonzini
2019-07-30  6:53 ` Andreas Schwab
2019-07-30  7:25   ` Anup Patel
2019-07-30  7:42     ` Andreas Schwab
2019-07-30  7:36   ` Anup Patel

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