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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>
This commit is contained in:
Nico Huber 2015-10-26 11:51:25 +01:00 committed by Patrick Georgi
parent 50a29f8170
commit e561f35fa5
3 changed files with 9 additions and 4 deletions
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4
src/arch/x86/acpi.c
View File

@ -389,7 +389,7 @@ void acpi_create_srat(acpi_srat_t *srat,
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 @@ void acpi_create_dmar(acpi_dmar_t *dmar,
header->revision = 1;
dmar->host_address_width = 40 - 1; /* FIXME: == MTRR size? */
dmar->flags = 0;
dmar->flags = flags;
current = acpi_fill_dmar(current);

7
src/arch/x86/include/arch/acpi.h
View File

@ -220,6 +220,11 @@ enum {
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_mcfg(acpi_mcfg_t *mcfg);
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);

2
src/northbridge/intel/gm45/acpi.c
View File

@ -116,7 +116,7 @@ unsigned long northbridge_write_acpi_tables(device_t device,
printk(BIOS_DEBUG, "ACPI: * DMAR\n");
dmar = (acpi_dmar_t *) current;
acpi_create_dmar(dmar, acpi_fill_dmar);
acpi_create_dmar(dmar, 0, acpi_fill_dmar);
current += dmar->header.length;
ALIGN_CURRENT;
acpi_add_table(rsdp, dmar);