[PATCH 01/26] pci-host/q35: Move PAM initialization above SMRAM initialization

Paolo Bonzini posted 26 patches 1 year, 10 months ago
Maintainers: Paolo Bonzini <pbonzini@redhat.com>, David Hildenbrand <david@redhat.com>, Igor Mammedov <imammedo@redhat.com>, Eduardo Habkost <eduardo@habkost.net>, Marcel Apfelbaum <marcel.apfelbaum@gmail.com>, "Philippe Mathieu-Daudé" <philmd@linaro.org>, Yanan Wang <wangyanan55@huawei.com>, "Michael S. Tsirkin" <mst@redhat.com>, Richard Henderson <richard.henderson@linaro.org>, Nicholas Piggin <npiggin@gmail.com>, Daniel Henrique Barboza <danielhb413@gmail.com>, David Gibson <david@gibson.dropbear.id.au>, Harsh Prateek Bora <harshpb@linux.ibm.com>, Thomas Huth <thuth@redhat.com>, Ilya Leoshkevich <iii@linux.ibm.com>, Halil Pasic <pasic@linux.ibm.com>, Christian Borntraeger <borntraeger@linux.ibm.com>, Eric Farman <farman@linux.ibm.com>, Peter Xu <peterx@redhat.com>, Cornelia Huck <cohuck@redhat.com>, Peter Maydell <peter.maydell@linaro.org>, Marcelo Tosatti <mtosatti@redhat.com>, Song Gao <gaosong@loongson.cn>, Huacai Chen <chenhuacai@kernel.org>, Aurelien Jarno <aurelien@aurel32.net>, Jiaxun Yang <jiaxun.yang@flygoat.com>, Aleksandar Rikalo <aleksandar.rikalo@syrmia.com>, Palmer Dabbelt <palmer@dabbelt.com>, Alistair Francis <alistair.francis@wdc.com>, Bin Meng <bin.meng@windriver.com>, Weiwei Li <liwei1518@gmail.com>, Liu Zhiwei <zhiwei_liu@linux.alibaba.com>
[PATCH 01/26] pci-host/q35: Move PAM initialization above SMRAM initialization
Posted by Paolo Bonzini 1 year, 10 months ago
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>
Message-ID: <20240320083945.991426-18-michael.roth@amd.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
---
 hw/pci-host/q35.c | 19 ++++++++++---------
 1 file changed, 10 insertions(+), 9 deletions(-)

diff --git a/hw/pci-host/q35.c b/hw/pci-host/q35.c
index 0d7d4e3f086..98d4a7c253a 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)
-- 
2.44.0