[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]
Re: [PATCH v2 1/2] hw/arm/smmu-common: Support 64-bit addresses
From: |
Eric Auger |
Subject: |
Re: [PATCH v2 1/2] hw/arm/smmu-common: Support 64-bit addresses |
Date: |
Tue, 14 Feb 2023 19:37:13 +0100 |
User-agent: |
Mozilla/5.0 (X11; Linux x86_64; rv:102.0) Gecko/20100101 Thunderbird/102.3.1 |
Hi Jean,
On 2/14/23 18:19, Jean-Philippe Brucker wrote:
> Addresses targeting the second translation table (TTB1) in the SMMU have
> all upper bits set. Ensure the IOMMU region covers all 64 bits.
>
> Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
> Signed-off-by: Jean-Philippe Brucker <jean-philippe@linaro.org>
Reviewed-by: Eric Auger <eric.auger@redhat.com>
Thanks
Eric
> ---
> include/hw/arm/smmu-common.h | 2 --
> hw/arm/smmu-common.c | 2 +-
> 2 files changed, 1 insertion(+), 3 deletions(-)
>
> diff --git a/include/hw/arm/smmu-common.h b/include/hw/arm/smmu-common.h
> index c5683af07d..9fcff26357 100644
> --- a/include/hw/arm/smmu-common.h
> +++ b/include/hw/arm/smmu-common.h
> @@ -27,8 +27,6 @@
> #define SMMU_PCI_DEVFN_MAX 256
> #define SMMU_PCI_DEVFN(sid) (sid & 0xFF)
>
> -#define SMMU_MAX_VA_BITS 48
> -
> /*
> * Page table walk error types
> */
> diff --git a/hw/arm/smmu-common.c b/hw/arm/smmu-common.c
> index 733c964778..2b8c67b9a1 100644
> --- a/hw/arm/smmu-common.c
> +++ b/hw/arm/smmu-common.c
> @@ -439,7 +439,7 @@ static AddressSpace *smmu_find_add_as(PCIBus *bus, void
> *opaque, int devfn)
>
> memory_region_init_iommu(&sdev->iommu, sizeof(sdev->iommu),
> s->mrtypename,
> - OBJECT(s), name, 1ULL << SMMU_MAX_VA_BITS);
> + OBJECT(s), name, UINT64_MAX);
> address_space_init(&sdev->as,
> MEMORY_REGION(&sdev->iommu), name);
> trace_smmu_add_mr(name);