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(parent: 0fd6ab3) | patch
VT-d: ensure zapping ACPI DMAR signature in acpi_parse_dmar
authorKeir Fraser <keir.fraser@citrix.com>
Thu, 11 Feb 2010 19:48:58 +0000 (19:48 +0000)
committerKeir Fraser <keir.fraser@citrix.com>
Thu, 11 Feb 2010 19:48:58 +0000 (19:48 +0000)
commit275c052dac52c397e933a01f80022e6472d5adf9
treec03c73ec3db48d90853e08112bcdee08058714c7tree | snapshot
parent0fd6ab35d13fe4127600467acba9f8c1db40aa00commit | diff
VT-d: ensure zapping ACPI DMAR signature in acpi_parse_dmar

VT-d is owned by Xen hypervisor. Xen zaps ACPI DMAR signature to
prevent dom0 to use VT-d. This patch changes the direct return when
DMAR width is zero, instead zaps ACPI DMAR signature before return.

Signed-off-by: Weidong Han <weidong.han@intel.com>
xen/drivers/passthrough/vtd/dmar.c diff | blob | history
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