ACPI: Make DMAR flags settable
Add a parameter to acpi_create_dmar() for the flags field and define
flags given by the spec [1].
[1] Intel Virtualization Technology for Directed I/O
Architecture Specification
Document-Number: D51397
Change-Id: I03ae32f13bb0061bd3b9bef607db175d9b0bc5e1
Signed-off-by: Nico Huber <nico.huber@secunet.com>
Reviewed-on: http://review.coreboot.org/12191
Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net>
Tested-by: build bot (Jenkins)
Reviewed-by: Duncan Laurie <dlaurie@google.com>
Reviewed-by: Patrick Georgi <pgeorgi@google.com>
diff --git a/src/arch/x86/acpi.c b/src/arch/x86/acpi.c
index 417a322..1570dc8 100644
--- a/src/arch/x86/acpi.c
+++ b/src/arch/x86/acpi.c
@@ -389,7 +389,7 @@
header->checksum = acpi_checksum((void *)srat, header->length);
}
-void acpi_create_dmar(acpi_dmar_t *dmar,
+void acpi_create_dmar(acpi_dmar_t *dmar, enum dmar_flags flags,
unsigned long (*acpi_fill_dmar) (unsigned long))
{
acpi_header_t *header = &(dmar->header);
@@ -407,7 +407,7 @@
header->revision = 1;
dmar->host_address_width = 40 - 1; /* FIXME: == MTRR size? */
- dmar->flags = 0;
+ dmar->flags = flags;
current = acpi_fill_dmar(current);
diff --git a/src/arch/x86/include/arch/acpi.h b/src/arch/x86/include/arch/acpi.h
index d4bacf5..2a7ea79 100644
--- a/src/arch/x86/include/arch/acpi.h
+++ b/src/arch/x86/include/arch/acpi.h
@@ -220,6 +220,11 @@
DRHD_INCLUDE_PCI_ALL = 1
};
+enum dmar_flags {
+ DMAR_INTR_REMAP = 1,
+ DMAR_X2APIC_OPT_OUT = 2,
+};
+
typedef struct dmar_entry {
u16 type;
u16 length;
@@ -543,7 +548,7 @@
void acpi_create_facs(acpi_facs_t *facs);
-void acpi_create_dmar(acpi_dmar_t *dmar,
+void acpi_create_dmar(acpi_dmar_t *dmar, enum dmar_flags flags,
unsigned long (*acpi_fill_dmar) (unsigned long));
unsigned long acpi_create_dmar_drhd(unsigned long current, u8 flags,
u16 segment, u32 bar);