Merge tag 'for-upstream' of https://gitlab.com/bonzini/qemu into staging

* target/riscv: clean up supported MMU modes, declarative CPU definitions,
  remove .instance_post_init (reviewed by Alistair)
* qom: reverse order of instance_post_init calls
* qapi/misc-target: doc and standard improvements for SGX
* hw/pci-host/gt64120: Fix endianness handling
* i386/hvf: Make CPUID_HT supported
* i386/tcg: Make CPUID_HT and CPUID_EXT3_CMP_LEG supported

# -----BEGIN PGP SIGNATURE-----
#
# iQFIBAABCgAyFiEE8TM4V0tmI4mGbHaCv/vSX3jHroMFAmgsLEsUHHBib256aW5p
# QHJlZGhhdC5jb20ACgkQv/vSX3jHroMosgf+IbsERBx/JTsjv2tKfCdAKXGmZ6xv
# JIb6SzXkuA0TBScUm0U1zluimNWHqqnSWQ/ogxhw69rqEkAZiFGbahpt9udD19kN
# 7oSLmj64a0a4uJZmWeMQ3rPO8zehg6t5K0sKXyR3d49pghw9NCzWabXdDypaV4VC
# sgl9zS46PMjG12XBSq7zwQsUPGwIE6OICtxM/UMgvlqdoI+sZjYU39MpmBf5I0DQ
# /VwGnZPc1pVwZqYn5sV075N4bjN+JYlaZN4+OcuRrU5bw4M8ZEwKxL+/b65ilp5S
# EqDXuxAilMS/0orC7YpCEf9Dryy/w8n3q4ejV8LQ5K6gnsOFTTurdNlWog==
# =bsKR
# -----END PGP SIGNATURE-----
# gpg: Signature made Tue 20 May 2025 03:16:27 EDT
# gpg:                using RSA key F13338574B662389866C7682BFFBD25F78C7AE83
# gpg:                issuer "pbonzini@redhat.com"
# gpg: Good signature from "Paolo Bonzini <bonzini@gnu.org>" [full]
# gpg:                 aka "Paolo Bonzini <pbonzini@redhat.com>" [full]
# Primary key fingerprint: 46F5 9FBD 57D6 12E7 BFD4  E2F7 7E15 100C CD36 69B1
#      Subkey fingerprint: F133 3857 4B66 2389 866C  7682 BFFB D25F 78C7 AE83

* tag 'for-upstream' of https://gitlab.com/bonzini/qemu: (35 commits)
  qom: reverse order of instance_post_init calls
  target/riscv: remove .instance_post_init
  target/riscv: convert Xiangshan Nanhu to RISCVCPUDef
  target/riscv: convert Ventana V1 to RISCVCPUDef
  target/riscv: convert TT Ascalon to RISCVCPUDef
  target/riscv: convert THead C906 to RISCVCPUDef
  target/riscv: generalize custom CSR functionality
  target/riscv: th: make CSR insertion test a bit more intuitive
  target/riscv: convert SiFive U models to RISCVCPUDef
  target/riscv: convert ibex CPU models to RISCVCPUDef
  target/riscv: convert SiFive E CPU models to RISCVCPUDef
  target/riscv: convert dynamic CPU models to RISCVCPUDef
  target/riscv: convert bare CPU models to RISCVCPUDef
  target/riscv: convert profile CPU models to RISCVCPUDef
  target/riscv: convert abstract CPU classes to RISCVCPUDef
  target/riscv: add more RISCVCPUDef fields
  target/riscv: include default value in cpu_cfg_fields.h.inc
  target/riscv: move RISCVCPUConfig fields to a header file
  target/riscv: merge riscv_cpu_class_init with the class_base function
  target/riscv: store RISCVCPUDef struct directly in the class
  ...

Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>

1 files changed, 48 insertions, 34 deletions

diff --git a/hw/pci-host/gt64120.c b/hw/pci-host/gt64120.c
index 56a6ef93b7..b12a25696c 100644
--- a/hw/pci-host/gt64120.c
+++ b/hw/pci-host/gt64120.c
@@ -320,38 +320,6 @@ static void gt64120_isd_mapping(GT64120State *s)
     memory_region_transaction_commit();
 }
 
-static void gt64120_update_pci_cfgdata_mapping(GT64120State *s)
-{
-    /* Indexed on MByteSwap bit, see Table 158: PCI_0 Command, Offset: 0xc00 */
-    static const MemoryRegionOps *pci_host_data_ops[] = {
-        &pci_host_data_be_ops, &pci_host_data_le_ops
-    };
-    PCIHostState *phb = PCI_HOST_BRIDGE(s);
-
-    memory_region_transaction_begin();
-
-    /*
-     * The setting of the MByteSwap bit and MWordSwap bit in the PCI Internal
-     * Command Register determines how data transactions from the CPU to/from
-     * PCI are handled along with the setting of the Endianness bit in the CPU
-     * Configuration Register. See:
-     * - Table 16: 32-bit PCI Transaction Endianness
-     * - Table 158: PCI_0 Command, Offset: 0xc00
-     */
-
-    if (memory_region_is_mapped(&phb->data_mem)) {
-        memory_region_del_subregion(&s->ISD_mem, &phb->data_mem);
-        object_unparent(OBJECT(&phb->data_mem));
-    }
-    memory_region_init_io(&phb->data_mem, OBJECT(phb),
-                          pci_host_data_ops[s->regs[GT_PCI0_CMD] & 1],
-                          s, "pci-conf-data", 4);
-    memory_region_add_subregion_overlap(&s->ISD_mem, GT_PCI0_CFGDATA << 2,
-                                        &phb->data_mem, 1);
-
-    memory_region_transaction_commit();
-}
-
 static void gt64120_pci_mapping(GT64120State *s)
 {
     memory_region_transaction_begin();
@@ -645,7 +613,6 @@ static void gt64120_writel(void *opaque, hwaddr addr,
     case GT_PCI0_CMD:
     case GT_PCI1_CMD:
         s->regs[saddr] = val & 0x0401fc0f;
-        gt64120_update_pci_cfgdata_mapping(s);
         break;
     case GT_PCI0_TOR:
     case GT_PCI0_BS_SCS10:
@@ -1024,6 +991,48 @@ static const MemoryRegionOps isd_mem_ops = {
     },
 };
 
+static bool bswap(const GT64120State *s) 
+{
+    PCIHostState *phb = PCI_HOST_BRIDGE(s);
+    /*check for bus == 0 && device == 0, Bits 11:15 = Device , Bits 16:23 = Bus*/
+    bool is_phb_dev0 = extract32(phb->config_reg, 11, 13) == 0;
+    bool le_mode = FIELD_EX32(s->regs[GT_PCI0_CMD], GT_PCI0_CMD, MByteSwap);
+    /* Only swap for non-bridge devices in big-endian mode */
+    return !le_mode && !is_phb_dev0;
+}
+
+static uint64_t gt64120_pci_data_read(void *opaque, hwaddr addr, unsigned size)
+{
+    GT64120State *s = opaque;
+    uint32_t val = pci_host_data_le_ops.read(opaque, addr, size);
+
+    if (bswap(s)) {
+        val = bswap32(val);
+    }
+    return val;
+}
+
+static void gt64120_pci_data_write(void *opaque, hwaddr addr, 
+    uint64_t val, unsigned size)
+{
+    GT64120State *s = opaque;
+
+    if (bswap(s)) {
+        val = bswap32(val); 
+    }
+    pci_host_data_le_ops.write(opaque, addr, val, size);  
+}
+
+static const MemoryRegionOps gt64120_pci_data_ops = {
+    .read = gt64120_pci_data_read,
+    .write = gt64120_pci_data_write,
+    .endianness = DEVICE_LITTLE_ENDIAN,
+    .valid = {
+        .min_access_size = 4,
+        .max_access_size = 4,
+    },
+};
+
 static void gt64120_reset(DeviceState *dev)
 {
     GT64120State *s = GT64120_PCI_HOST_BRIDGE(dev);
@@ -1178,7 +1187,6 @@ static void gt64120_reset(DeviceState *dev)
 
     gt64120_isd_mapping(s);
     gt64120_pci_mapping(s);
-    gt64120_update_pci_cfgdata_mapping(s);
 }
 
 static void gt64120_realize(DeviceState *dev, Error **errp)
@@ -1202,6 +1210,12 @@ static void gt64120_realize(DeviceState *dev, Error **errp)
     memory_region_add_subregion_overlap(&s->ISD_mem, GT_PCI0_CFGADDR << 2,
                                         &phb->conf_mem, 1);
 
+    memory_region_init_io(&phb->data_mem, OBJECT(phb),
+                          &gt64120_pci_data_ops,
+                          s, "pci-conf-data", 4);
+    memory_region_add_subregion_overlap(&s->ISD_mem, GT_PCI0_CFGDATA << 2,
+                                        &phb->data_mem, 1);
+
 
     /*
      * The whole address space decoded by the GT-64120A doesn't generate