[openwrt/openwrt] x86: 64: Enable PCI MMCONFIG

[LEDE Commits]

robimarko pushed a commit to openwrt/openwrt.git, branch main:
https://git.openwrt.org/5d0a07c90f238e10cdea86f9c328c456e225514b

commit 5d0a07c90f238e10cdea86f9c328c456e225514b
Author: Kazuhiro Ito <kzhr at d1.dion.ne.jp>
AuthorDate: Sun Jun 29 16:47:31 2025 +0900

    x86: 64: Enable PCI MMCONFIG
    
    Some devices can't boot since kernel 6.6 without PCI MMCONFIG.
    
    Fixes: https://github.com/openwrt/openwrt/issues/18228
    Fixes: https://forum.openwrt.org/t/openwrt-24-10-x86-64-boot-hangs-after-pci-nvme-initialization/229086
    Signed-off-by: Kazuhiro Ito <kzhr at d1.dion.ne.jp>
    Link: https://github.com/openwrt/openwrt/pull/19256
    Signed-off-by: Robert Marko <robimarko at gmail.com>
---
 target/linux/x86/64/config-6.12 | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/target/linux/x86/64/config-6.12 b/target/linux/x86/64/config-6.12
index bb28d596a3..ab74aef214 100644
--- a/target/linux/x86/64/config-6.12
+++ b/target/linux/x86/64/config-6.12
@@ -333,6 +333,7 @@ CONFIG_MITIGATION_IBRS_ENTRY=y
 CONFIG_MITIGATION_PAGE_TABLE_ISOLATION=y
 # CONFIG_MITIGATION_SLS is not set
 CONFIG_MMC=y
+CONFIG_MMCONF_FAM10H=y
 CONFIG_MMC_BLOCK=y
 CONFIG_MMC_CQHCI=y
 CONFIG_MMC_RICOH_MMC=y
@@ -390,7 +391,7 @@ CONFIG_PCIEPORTBUS=y
 CONFIG_PCIE_PME=y
 CONFIG_PCI_HYPERV=y
 CONFIG_PCI_HYPERV_INTERFACE=y
-# CONFIG_PCI_MMCONFIG is not set
+CONFIG_PCI_MMCONFIG=y
 CONFIG_PCI_PASID=y
 CONFIG_PCI_PRI=y
 CONFIG_PCI_XEN=y