From: Xiang W <wxjstz@126.com>
Date: Sun, 28 Aug 2022 23:53:15 +0000 (+0800)
Subject: virtio: pci: fix bug of virtio_pci_map_capability
X-Git-Tag: v2025.01-rc5-pxa1908~1263^2~15^2~6
X-Git-Url: http://git.dujemihanovic.xyz/html/static/gitweb.css?a=commitdiff_plain;h=04dd7c8e5624ee971004a6b310c2e7d958a0018c;p=u-boot.git

virtio: pci: fix bug of virtio_pci_map_capability

The bar of the structure virtio_pci_cap is the index, and each base
address occupies 4 bytes, so it needs to be multiplied by 4.

This patch fixes a bug reported by Felix Yan
https://lists.denx.de/pipermail/u-boot/2022-August/492779.html

Signed-off-by: Xiang W <wxjstz@126.com>
Tested-by: Felix Yan <felixonmars@archlinux.org>
---

diff --git a/drivers/virtio/virtio_pci_modern.c b/drivers/virtio/virtio_pci_modern.c
index 880a12cc28..cfde4007f5 100644
--- a/drivers/virtio/virtio_pci_modern.c
+++ b/drivers/virtio/virtio_pci_modern.c
@@ -466,7 +466,7 @@ static void __iomem *virtio_pci_map_capability(struct udevice *udev,
 	unsigned long mask =
 			PCI_REGION_TYPE | PCI_REGION_SYS_MEMORY | PCI_REGION_RO;
 	unsigned long flags = PCI_REGION_MEM;
-	u8 *p = dm_pci_map_bar(udev, PCI_BASE_ADDRESS_0 + cap->bar, cap->offset,
+	u8 *p = dm_pci_map_bar(udev, PCI_BASE_ADDRESS_0 + 4 * cap->bar, cap->offset,
 			       cap->length, mask, flags);
 
 	return (void __iomem *)p;