VMD: Set bus resource start to 0

PATCH New Keith Busch 1 participant 1 message Feb 22, 2016

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x86 PCI

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Keith Busch

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2016-02-22 21:22 UTC #0 lore raw

PATCH 1/1 VMD: Set bus resource start to 0

The bus always starts at 0. Due to alignment and down-casting, this happened to work before, but looked alarmingly incorrect in kernel logs.

Signed-off-by Keith Busch <[email protected]>

---
 arch/x86/pci/vmd.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

arch/x86/pci/vmd.c +1 -1

index d57e480..ba07687 100644
@@ -527,7 +527,7 @@ static int vmd_enable_domain(struct vmd_dev *vmd)
 	res = &vmd->dev->resource[VMD_CFGBAR];
 	vmd->resources[0] = (struct resource) {
 		.name  = "VMD CFGBAR",
-		.start = res->start,
+		.start = 0,
 		.end   = (resource_size(res) >> 20) - 1,
 		.flags = IORESOURCE_BUS | IORESOURCE_PCI_FIXED,
 	};

Signature · 1 line

2.6.2.307.g37023ba