[XS] Change in coreboot[main]: soc/intel/common/systemagent: read sa resources only from domain 0

[Felix Held (Code Review)]

Felix Held has submitted this change. ( https://review.coreboot.org/c/coreboot/+/84109?usp=email )

Change subject: soc/intel/common/systemagent: read sa resources only from domain 0
......................................................................

soc/intel/common/systemagent: read sa resources only from domain 0

Change-Id: Ida4461de6275bdd314f5cba441d3ff631d570305
Signed-off-by: Yuchi Chen 
Reviewed-on: https://review.coreboot.org/c/coreboot/+/84109
Tested-by: build bot (Jenkins) 
Reviewed-by: Shuo Liu 
---
M src/soc/intel/common/block/systemagent/systemagent.c
1 file changed, 6 insertions(+), 0 deletions(-)

Approvals:
  build bot (Jenkins): Verified
  Shuo Liu: Looks good to me, approved

diff --git a/src/soc/intel/common/block/systemagent/systemagent.c b/src/soc/intel/common/block/systemagent/systemagent.c
index bca442b..e8d7432 100644
--- a/src/soc/intel/common/block/systemagent/systemagent.c
+++ b/src/soc/intel/common/block/systemagent/systemagent.c
@@ -273,6 +273,12 @@
 {
    int index = 0;

+	/**
+	 * If SoC has multiple PCIe domains, only reading resources from the first one.
+	 */
+	if (!is_dev_on_domain0(dev))
+		return;
+
    /* Read standard PCI resources. */
    pci_dev_read_resources(dev);