diff mbox series

[v3,17/49] pci-host/q35: Move PAM initialization above SMRAM initialization

Message ID 20240320083945.991426-18-michael.roth@amd.com (mailing list archive)
State New, archived
Headers show
Series Add AMD Secure Nested Paging (SEV-SNP) support | expand

Commit Message

Michael Roth March 20, 2024, 8:39 a.m. UTC 
From: Isaku Yamahata <isaku.yamahata@intel.com>

In mch_realize(), process PAM initialization before SMRAM initialization so
that later patch can skill all the SMRAM related with a single check.

Signed-off-by: Isaku Yamahata <isaku.yamahata@intel.com>
Signed-off-by: Xiaoyao Li <xiaoyao.li@intel.com>
Signed-off-by: Michael Roth <michael.roth@amd.com>
---
 hw/pci-host/q35.c | 19 ++++++++++---------
 1 file changed, 10 insertions(+), 9 deletions(-)
diff mbox series

Patch

diff --git a/hw/pci-host/q35.c b/hw/pci-host/q35.c
index 0d7d4e3f08..98d4a7c253 100644
--- a/hw/pci-host/q35.c
+++ b/hw/pci-host/q35.c
@@ -568,6 +568,16 @@  static void mch_realize(PCIDevice *d, Error **errp)
     /* setup pci memory mapping */
     pc_pci_as_mapping_init(mch->system_memory, mch->pci_address_space);
 
+    /* PAM */
+    init_pam(&mch->pam_regions[0], OBJECT(mch), mch->ram_memory,
+             mch->system_memory, mch->pci_address_space,
+             PAM_BIOS_BASE, PAM_BIOS_SIZE);
+    for (i = 0; i < ARRAY_SIZE(mch->pam_regions) - 1; ++i) {
+        init_pam(&mch->pam_regions[i + 1], OBJECT(mch), mch->ram_memory,
+                 mch->system_memory, mch->pci_address_space,
+                 PAM_EXPAN_BASE + i * PAM_EXPAN_SIZE, PAM_EXPAN_SIZE);
+    }
+
     /* if *disabled* show SMRAM to all CPUs */
     memory_region_init_alias(&mch->smram_region, OBJECT(mch), "smram-region",
                              mch->pci_address_space, MCH_HOST_BRIDGE_SMRAM_C_BASE,
@@ -634,15 +644,6 @@  static void mch_realize(PCIDevice *d, Error **errp)
 
     object_property_add_const_link(qdev_get_machine(), "smram",
                                    OBJECT(&mch->smram));
-
-    init_pam(&mch->pam_regions[0], OBJECT(mch), mch->ram_memory,
-             mch->system_memory, mch->pci_address_space,
-             PAM_BIOS_BASE, PAM_BIOS_SIZE);
-    for (i = 0; i < ARRAY_SIZE(mch->pam_regions) - 1; ++i) {
-        init_pam(&mch->pam_regions[i + 1], OBJECT(mch), mch->ram_memory,
-                 mch->system_memory, mch->pci_address_space,
-                 PAM_EXPAN_BASE + i * PAM_EXPAN_SIZE, PAM_EXPAN_SIZE);
-    }
 }
 
 uint64_t mch_mcfg_base(void)