diff options
Diffstat (limited to 'drivers/pci/dmar.c')
| -rw-r--r-- | drivers/pci/dmar.c | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/drivers/pci/dmar.c b/drivers/pci/dmar.c index 7b287cb..0cbc5fd 100644 --- a/drivers/pci/dmar.c +++ b/drivers/pci/dmar.c @@ -33,6 +33,7 @@ #include <linux/timer.h> #include <linux/irq.h> #include <linux/interrupt.h> +#include <asm/tboot.h> #undef PREFIX #define PREFIX "DMAR:" @@ -413,6 +414,12 @@ parse_dmar_table(void) */ dmar_table_detect(); + /* + * ACPI tables may not be DMA protected by tboot, so use DMAR copy + * SINIT saved in SinitMleData in TXT heap (which is DMA protected) + */ + dmar_tbl = tboot_get_dmar_table(dmar_tbl); + dmar = (struct acpi_table_dmar *)dmar_tbl; if (!dmar) return -ENODEV; |