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From: Zenghui Yu <yuzenghui@huawei.com>
To: Eric Auger <eric.auger@redhat.com>
Cc: kvm@vger.kernel.org, vivek.gautam@arm.com,
	kvmarm@lists.cs.columbia.edu, eric.auger.pro@gmail.com,
	jean-philippe@linaro.org, wangxingang5@huawei.com,
	maz@kernel.org, jiangkunkun@huawei.com, vsethi@nvidia.com,
	zhangfei.gao@linaro.org, will@kernel.org,
	alex.williamson@redhat.com, wanghaibin.wang@huawei.com,
	linux-kernel@vger.kernel.org, lushenming@huawei.com,
	iommu@lists.linux-foundation.org, robin.murphy@arm.com
Subject: Re: [PATCH v14 06/13] iommu/smmuv3: Allow stage 1 invalidation with unmanaged ASIDs
Date: Tue, 30 Mar 2021 17:17:57 +0800	[thread overview]
Message-ID: <7a270196-2a8d-1b23-ee5f-f977c53d2134@huawei.com> (raw)
In-Reply-To: <20210223205634.604221-7-eric.auger@redhat.com>

On 2021/2/24 4:56, Eric Auger wrote:
> @@ -1936,7 +1950,12 @@ static void arm_smmu_tlb_inv_range_domain(unsigned long iova, size_t size,
>   		},
>   	};
>   
> -	if (smmu_domain->stage == ARM_SMMU_DOMAIN_S1) {
> +	if (ext_asid >= 0) {  /* guest stage 1 invalidation */
> +		cmd.opcode	= smmu_domain->smmu->features & ARM_SMMU_FEAT_E2H ?
> +				  CMDQ_OP_TLBI_EL2_VA : CMDQ_OP_TLBI_NH_VA;

If I understand it correctly, the true nested mode effectively gives us
a *NS-EL1* StreamWorld. We should therefore use CMDQ_OP_TLBI_NH_VA to
invalidate the stage-1 NS-EL1 entries, no matter E2H is selected or not.
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  reply	other threads:[~2021-03-30  9:18 UTC|newest]

Thread overview: 47+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-02-23 20:56 [PATCH v14 00/13] SMMUv3 Nested Stage Setup (IOMMU part) Eric Auger
2021-02-23 20:56 ` [PATCH v14 01/13] iommu: Introduce attach/detach_pasid_table API Eric Auger
2021-02-23 20:56 ` [PATCH v14 02/13] iommu: Introduce bind/unbind_guest_msi Eric Auger
2021-02-23 20:56 ` [PATCH v14 03/13] iommu/smmuv3: Allow s1 and s2 configs to coexist Eric Auger
2021-02-23 20:56 ` [PATCH v14 04/13] iommu/smmuv3: Get prepared for nested stage support Eric Auger
2021-02-23 20:56 ` [PATCH v14 05/13] iommu/smmuv3: Implement attach/detach_pasid_table Eric Auger
2021-03-02  8:35   ` Keqian Zhu
2021-03-19 13:15     ` Auger Eric
2021-03-22  6:23       ` Keqian Zhu
2021-02-23 20:56 ` [PATCH v14 06/13] iommu/smmuv3: Allow stage 1 invalidation with unmanaged ASIDs Eric Auger
2021-03-30  9:17   ` Zenghui Yu [this message]
2021-04-01  9:38     ` Auger Eric
2021-04-01 12:37   ` Kunkun Jiang
2021-04-08 12:30     ` Auger Eric
2021-04-09  4:48       ` Kunkun Jiang
2021-04-09  8:31         ` Auger Eric
2021-04-09  9:43           ` Kunkun Jiang
2021-02-23 20:56 ` [PATCH v14 07/13] iommu/smmuv3: Implement cache_invalidate Eric Auger
2021-03-04  7:55   ` chenxiang (M)
2021-03-19 17:36     ` Auger Eric
2021-03-22  6:40       ` [Linuxarm] " chenxiang (M)
2021-03-22  9:05         ` Auger Eric
2021-03-23  1:28           ` chenxiang (M)
2021-04-01  6:11   ` Zenghui Yu
2021-04-01 12:06     ` Auger Eric
2021-02-23 20:56 ` [PATCH v14 08/13] dma-iommu: Implement NESTED_MSI cookie Eric Auger
2021-04-07  7:39   ` Zenghui Yu
2021-04-10 13:34     ` Auger Eric
2021-02-23 20:56 ` [PATCH v14 09/13] iommu/smmuv3: Nested mode single MSI doorbell per domain enforcement Eric Auger
2021-02-23 20:56 ` [PATCH v14 10/13] iommu/smmuv3: Enforce incompatibility between nested mode and HW MSI regions Eric Auger
2021-02-23 20:56 ` [PATCH v14 11/13] iommu/smmuv3: Implement bind/unbind_guest_msi Eric Auger
2021-02-23 20:56 ` [PATCH v14 12/13] iommu/smmuv3: report additional recoverable faults Eric Auger
2021-02-23 20:56 ` [PATCH v14 13/13] iommu/smmuv3: Accept configs with more than one context descriptor Eric Auger
2021-03-30  9:23   ` Zenghui Yu
2021-04-01 11:48     ` Auger Eric
2021-04-01 12:38       ` Shameerali Kolothum Thodi
2021-04-01 13:20         ` Auger Eric
2021-02-25 16:06 ` [PATCH v14 00/13] SMMUv3 Nested Stage Setup (IOMMU part) Auger Eric
2021-04-22 15:04   ` Sumit Gupta
2021-04-23 13:00     ` Jean-Philippe Brucker
2021-04-23 17:16       ` Sumit Gupta
2021-04-23 17:58         ` Krishna Reddy
2021-04-23 18:19           ` Sumit Gupta
2021-04-24  9:06           ` Marc Zyngier
2021-04-24 11:29             ` Sumit Gupta
2021-03-18  0:16 ` Krishna Reddy
2021-03-19 13:17   ` Auger Eric

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