From: Oleksandr Tyshchenko <olekstysh@gmail.com> To: xen-devel@lists.xenproject.org, linux-kernel@vger.kernel.org, linux-arm-kernel@lists.infradead.org Cc: Oleksandr Tyshchenko <oleksandr_tyshchenko@epam.com>, Boris Ostrovsky <boris.ostrovsky@oracle.com>, Juergen Gross <jgross@suse.com>, Stefano Stabellini <sstabellini@kernel.org>, Julien Grall <julien@xen.org> Subject: [RFC PATCH 6/6] arm/xen: Assign xen-virtio DMA ops for virtio devices in Xen guests Date: Thu, 14 Apr 2022 22:19:33 +0300 [thread overview] Message-ID: <1649963973-22879-7-git-send-email-olekstysh@gmail.com> (raw) In-Reply-To: <1649963973-22879-1-git-send-email-olekstysh@gmail.com> From: Oleksandr Tyshchenko <oleksandr_tyshchenko@epam.com> Call xen_virtio_setup_dma_ops() only for Xen-aware virtio devices in Xen guests if restricted access to the guest memory is enabled. Signed-off-by: Oleksandr Tyshchenko <oleksandr_tyshchenko@epam.com> --- include/xen/arm/xen-ops.h | 7 +++++++ 1 file changed, 7 insertions(+) diff --git a/include/xen/arm/xen-ops.h b/include/xen/arm/xen-ops.h index 621da05..28b2ad3 100644 --- a/include/xen/arm/xen-ops.h +++ b/include/xen/arm/xen-ops.h @@ -2,12 +2,19 @@ #ifndef _ASM_ARM_XEN_OPS_H #define _ASM_ARM_XEN_OPS_H +#include <linux/virtio_config.h> #include <xen/swiotlb-xen.h> +#include <xen/xen-ops.h> static inline void xen_setup_dma_ops(struct device *dev) { if (xen_swiotlb_detect()) dev->dma_ops = &xen_swiotlb_dma_ops; + +#ifdef CONFIG_XEN_VIRTIO + if (arch_has_restricted_virtio_memory_access() && xen_is_virtio_device(dev)) + xen_virtio_setup_dma_ops(dev); +#endif } #endif /* _ASM_ARM_XEN_OPS_H */ -- 2.7.4
WARNING: multiple messages have this Message-ID (diff)
From: Oleksandr Tyshchenko <olekstysh@gmail.com> To: xen-devel@lists.xenproject.org, linux-kernel@vger.kernel.org, linux-arm-kernel@lists.infradead.org Cc: Oleksandr Tyshchenko <oleksandr_tyshchenko@epam.com>, Boris Ostrovsky <boris.ostrovsky@oracle.com>, Juergen Gross <jgross@suse.com>, Stefano Stabellini <sstabellini@kernel.org>, Julien Grall <julien@xen.org> Subject: [RFC PATCH 6/6] arm/xen: Assign xen-virtio DMA ops for virtio devices in Xen guests Date: Thu, 14 Apr 2022 22:19:33 +0300 [thread overview] Message-ID: <1649963973-22879-7-git-send-email-olekstysh@gmail.com> (raw) In-Reply-To: <1649963973-22879-1-git-send-email-olekstysh@gmail.com> From: Oleksandr Tyshchenko <oleksandr_tyshchenko@epam.com> Call xen_virtio_setup_dma_ops() only for Xen-aware virtio devices in Xen guests if restricted access to the guest memory is enabled. Signed-off-by: Oleksandr Tyshchenko <oleksandr_tyshchenko@epam.com> --- include/xen/arm/xen-ops.h | 7 +++++++ 1 file changed, 7 insertions(+) diff --git a/include/xen/arm/xen-ops.h b/include/xen/arm/xen-ops.h index 621da05..28b2ad3 100644 --- a/include/xen/arm/xen-ops.h +++ b/include/xen/arm/xen-ops.h @@ -2,12 +2,19 @@ #ifndef _ASM_ARM_XEN_OPS_H #define _ASM_ARM_XEN_OPS_H +#include <linux/virtio_config.h> #include <xen/swiotlb-xen.h> +#include <xen/xen-ops.h> static inline void xen_setup_dma_ops(struct device *dev) { if (xen_swiotlb_detect()) dev->dma_ops = &xen_swiotlb_dma_ops; + +#ifdef CONFIG_XEN_VIRTIO + if (arch_has_restricted_virtio_memory_access() && xen_is_virtio_device(dev)) + xen_virtio_setup_dma_ops(dev); +#endif } #endif /* _ASM_ARM_XEN_OPS_H */ -- 2.7.4 _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel
next prev parent reply other threads:[~2022-04-14 19:20 UTC|newest] Thread overview: 80+ messages / expand[flat|nested] mbox.gz Atom feed top 2022-04-14 19:19 [RFC PATCH 0/6] virtio: Solution to restrict memory access under Xen using xen-virtio DMA ops layer Oleksandr Tyshchenko 2022-04-14 19:19 ` Oleksandr Tyshchenko 2022-04-14 19:19 ` [RFC PATCH 1/6] xen/grants: support allocating consecutive grants Oleksandr Tyshchenko 2022-04-14 19:19 ` Oleksandr Tyshchenko 2022-04-14 19:19 ` [RFC PATCH 2/6] virtio: add option to restrict memory access under Xen Oleksandr Tyshchenko 2022-04-14 19:19 ` Oleksandr Tyshchenko 2022-04-14 19:43 ` H. Peter Anvin 2022-04-15 15:20 ` Oleksandr 2022-04-15 15:20 ` Oleksandr 2022-04-15 22:01 ` Stefano Stabellini 2022-04-17 17:02 ` Oleksandr 2022-04-17 17:02 ` Oleksandr 2022-04-18 19:11 ` Stefano Stabellini 2022-04-18 19:11 ` Stefano Stabellini 2022-04-19 6:21 ` Juergen Gross 2022-04-19 6:21 ` Juergen Gross 2022-04-19 6:37 ` Oleksandr 2022-04-19 6:37 ` Oleksandr 2022-04-14 19:19 ` [RFC PATCH 3/6] dt-bindings: xen: Add xen,dev-domid property description for xen-virtio layer Oleksandr Tyshchenko 2022-04-14 19:19 ` [RFC PATCH 3/6] dt-bindings: xen: Add xen, dev-domid " Oleksandr Tyshchenko 2022-04-15 22:01 ` [RFC PATCH 3/6] dt-bindings: xen: Add xen,dev-domid " Stefano Stabellini 2022-04-15 22:01 ` Stefano Stabellini 2022-04-17 17:24 ` Oleksandr 2022-04-17 17:24 ` Oleksandr 2022-04-14 19:19 ` [RFC PATCH 4/6] virtio: Various updates to xen-virtio DMA ops layer Oleksandr Tyshchenko 2022-04-14 19:19 ` Oleksandr Tyshchenko 2022-04-15 22:02 ` Stefano Stabellini 2022-04-15 22:02 ` Stefano Stabellini 2022-04-17 18:21 ` Oleksandr 2022-04-17 18:21 ` Oleksandr 2022-04-18 19:11 ` Stefano Stabellini 2022-04-18 19:11 ` Stefano Stabellini 2022-04-19 6:58 ` Juergen Gross 2022-04-19 6:58 ` Juergen Gross 2022-04-19 7:07 ` Oleksandr 2022-04-19 7:07 ` Oleksandr 2022-04-16 6:05 ` Christoph Hellwig 2022-04-16 6:05 ` Christoph Hellwig 2022-04-17 18:39 ` Oleksandr 2022-04-17 18:39 ` Oleksandr 2022-04-14 19:19 ` [RFC PATCH 5/6] arm/xen: Introduce xen_setup_dma_ops() Oleksandr Tyshchenko 2022-04-14 19:19 ` Oleksandr Tyshchenko 2022-04-15 22:02 ` Stefano Stabellini 2022-04-15 22:02 ` Stefano Stabellini 2022-04-17 18:43 ` Oleksandr 2022-04-17 18:43 ` Oleksandr 2022-04-14 19:19 ` Oleksandr Tyshchenko [this message] 2022-04-14 19:19 ` [RFC PATCH 6/6] arm/xen: Assign xen-virtio DMA ops for virtio devices in Xen guests Oleksandr Tyshchenko 2022-04-15 22:02 ` Stefano Stabellini 2022-04-15 22:02 ` Stefano Stabellini 2022-04-16 6:07 ` Christoph Hellwig 2022-04-16 6:07 ` Christoph Hellwig 2022-04-17 21:05 ` Oleksandr 2022-04-17 21:05 ` Oleksandr 2022-04-18 19:11 ` Stefano Stabellini 2022-04-18 19:11 ` Stefano Stabellini 2022-04-19 12:17 ` Oleksandr 2022-04-19 12:17 ` Oleksandr 2022-04-19 14:48 ` Juergen Gross 2022-04-19 14:48 ` Juergen Gross 2022-04-19 17:11 ` Oleksandr 2022-04-19 17:11 ` Oleksandr 2022-04-20 0:23 ` Stefano Stabellini 2022-04-20 0:23 ` Stefano Stabellini 2022-04-20 9:00 ` Oleksandr 2022-04-20 9:00 ` Oleksandr 2022-04-20 22:49 ` Stefano Stabellini 2022-04-20 22:49 ` Stefano Stabellini 2022-04-17 19:20 ` Oleksandr 2022-04-17 19:20 ` Oleksandr 2022-04-15 7:41 ` [RFC PATCH 0/6] virtio: Solution to restrict memory access under Xen using xen-virtio DMA ops layer Christoph Hellwig 2022-04-15 7:41 ` Christoph Hellwig 2022-04-15 7:41 ` Christoph Hellwig 2022-04-15 10:04 ` Oleksandr 2022-04-15 10:04 ` Oleksandr 2022-04-15 8:44 ` Michael S. Tsirkin 2022-04-15 8:44 ` Michael S. Tsirkin 2022-04-15 8:44 ` Michael S. Tsirkin 2022-04-15 15:29 ` Oleksandr 2022-04-15 15:29 ` Oleksandr
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