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intel_iommu: fix VTD_SID_TO_BUS

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(((sid) >> 8) && 0xff)  makes no sense
(((sid) >> 8) & 0xff) seems to be what was meant.

https://bugs.launchpad.net/qemu/+bug/1382477

Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
This commit is contained in:
Michael S. Tsirkin 2014-10-20 12:37:23 +03:00
parent 68a27b208a
commit 1e06f131fd
1 changed files with 1 additions and 1 deletions
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2
include/hw/i386/intel_iommu.h
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@ -37,7 +37,7 @@
#define VTD_PCI_DEVFN_MAX 256
#define VTD_PCI_SLOT(devfn) (((devfn) >> 3) & 0x1f)
#define VTD_PCI_FUNC(devfn) ((devfn) & 0x07)
#define VTD_SID_TO_BUS(sid) (((sid) >> 8) && 0xff)
#define VTD_SID_TO_BUS(sid) (((sid) >> 8) & 0xff)
#define VTD_SID_TO_DEVFN(sid) ((sid) & 0xff)
#define DMAR_REG_SIZE 0x230