Re: [PATCH] virtio_pci: use PAGE_SIZE for pci vring align
From: Jason Wang <hidden>
Date: 2022-11-10 06:26:57
Also in:
lkml
On Thu, Nov 10, 2022 at 2:14 PM Xianting Tian [off-list ref] wrote:
quoted hunk
As the comments of VIRTIO_PCI_VRING_ALIGN shows, we should use PAGE_SZIE not the hard code 4096. Signed-off-by: Xianting Tian <redacted> --- include/uapi/linux/virtio_pci.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)diff --git a/include/uapi/linux/virtio_pci.h b/include/uapi/linux/virtio_pci.h index f703afc7ad31..ed5f678c682b 100644 --- a/include/uapi/linux/virtio_pci.h +++ b/include/uapi/linux/virtio_pci.h@@ -90,7 +90,7 @@ /* The alignment to use between consumer and producer parts of vring. * x86 pagesize again. */
See the comment above, PAGE_SIZE varies among archs. Thanks
-#define VIRTIO_PCI_VRING_ALIGN 4096 +#define VIRTIO_PCI_VRING_ALIGN PAGE_SIZE #endif /* VIRTIO_PCI_NO_LEGACY */ -- 2.17.1
_______________________________________________ Virtualization mailing list Virtualization@lists.linux-foundation.org https://lists.linuxfoundation.org/mailman/listinfo/virtualization