ACPI: Add RHSA and ANDD structures for DMAR table
Remapping Hardware Status Affinity (RHSA) structure is applicable for
platforms supporting non-uniform memory. An ACPI Name-space Device
Declaration (ANDD) structure uniquely represents an ACPI name-space
enumerated device capable of issuing DMA requests in the platform.
Add RHSA and ANDD structures support for DMAR table generation.
BUG=b:130351429
TEST=Image built and booted to kernel
Change-Id: I042925a7c03831061870d9bca03f11bf25aeb3e7
Signed-off-by: John Zhao <john.zhao@intel.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/32189
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Nico Huber <nico.h@gmx.de>
Reviewed-by: Furquan Shaikh <furquan@google.com>
diff --git a/src/arch/x86/acpi.c b/src/arch/x86/acpi.c
index 8a620bb..d1dcd03 100644
--- a/src/arch/x86/acpi.c
+++ b/src/arch/x86/acpi.c
@@ -569,6 +569,33 @@
return atsr->length;
}
+unsigned long acpi_create_dmar_rhsa(unsigned long current, u64 base_addr,
+ u32 proximity_domain)
+{
+ dmar_rhsa_entry_t *rhsa = (dmar_rhsa_entry_t *)current;
+ memset(rhsa, 0, sizeof(*rhsa));
+ rhsa->type = DMAR_RHSA;
+ rhsa->length = sizeof(*rhsa);
+ rhsa->base_address = base_addr;
+ rhsa->proximity_domain = proximity_domain;
+
+ return rhsa->length;
+}
+
+unsigned long acpi_create_dmar_andd(unsigned long current, u8 device_number,
+ const char *device_name)
+{
+ dmar_andd_entry_t *andd = (dmar_andd_entry_t *)current;
+ int andd_len = sizeof(dmar_andd_entry_t) + strlen(device_name) + 1;
+ memset(andd, 0, andd_len);
+ andd->type = DMAR_ANDD;
+ andd->length = andd_len;
+ andd->device_number = device_number;
+ memcpy(&andd->device_name, device_name, strlen(device_name));
+
+ return andd->length;
+}
+
void acpi_dmar_drhd_fixup(unsigned long base, unsigned long current)
{
dmar_entry_t *drhd = (dmar_entry_t *)base;