Merge tag 'single-binary-20250425' of https://github.com/philmd/qemu into staging

Various patches loosely related to single binary work:

- Replace cpu_list() definition by CPUClass::list_cpus() callback
- Remove few MO_TE definitions on Hexagon / X86 targets
- Remove target_ulong uses in  ARMMMUFaultInfo and ARM CPUWatchpoint
- Remove DEVICE_HOST_ENDIAN definition
- Evaluate TARGET_BIG_ENDIAN at compile time and use target_needs_bswap() more
- Rename target_words_bigendian() as target_big_endian()
- Convert target_name() and target_cpu_type() to TargetInfo API
- Constify QOM TypeInfo class_data/interfaces fields
- Get default_cpu_type calling machine_class_default_cpu_type()
- Correct various uses of GLibCompareDataFunc prototype
- Simplify ARM/Aarch64 gdb_get_core_xml_file() handling a bit
- Move device tree files in their own pc-bios/dtb/ subdir
- Correctly check strchrnul() symbol availability on macOS SDK
- Move target-agnostic methods out of cpu-target.c and accel-target.c
- Unmap canceled USB XHCI packet
- Use deposit/extract API in designware model
- Fix MIPS16e translation
- Few missing header fixes

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* tag 'single-binary-20250425' of https://github.com/philmd/qemu: (58 commits)
  qemu: Convert target_name() to TargetInfo API
  accel: Move target-agnostic code from accel-target.c -> accel-common.c
  accel: Make AccelCPUClass structure target-agnostic
  accel: Include missing 'qemu/accel.h' header in accel-internal.h
  accel: Implement accel_init_ops_interfaces() for both system/user mode
  cpus: Move target-agnostic methods out of cpu-target.c
  cpus: Replace CPU_RESOLVING_TYPE -> target_cpu_type()
  qemu: Introduce target_cpu_type()
  qapi: Rename TargetInfo structure as QemuTargetInfo
  hw/microblaze: Evaluate TARGET_BIG_ENDIAN at compile time
  hw/mips: Evaluate TARGET_BIG_ENDIAN at compile time
  target/xtensa: Evaluate TARGET_BIG_ENDIAN at compile time
  target/mips: Check CPU endianness at runtime using env_is_bigendian()
  accel/kvm: Use target_needs_bswap()
  linux-user/elfload: Use target_needs_bswap()
  target/hexagon: Include missing 'accel/tcg/getpc.h'
  accel/tcg: Correct list of included headers in tcg-stub.c
  system/kvm: make functions accessible from common code
  meson: Use osdep_prefix for strchrnul()
  meson: Share common C source prefixes
  ...

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

1 files changed, 17 insertions, 15 deletions

diff --git a/accel/kvm/kvm-all.c b/accel/kvm/kvm-all.c
index cba9c78d2f..278a50690c 100644
--- a/accel/kvm/kvm-all.c
+++ b/accel/kvm/kvm-all.c
@@ -33,6 +33,7 @@
 #include "system/cpus.h"
 #include "system/accel-blocker.h"
 #include "qemu/bswap.h"
+#include "exec/tswap.h"
 #include "system/memory.h"
 #include "system/ram_addr.h"
 #include "qemu/event_notifier.h"
@@ -1318,21 +1319,22 @@ bool kvm_hwpoisoned_mem(void)
 
 static uint32_t adjust_ioeventfd_endianness(uint32_t val, uint32_t size)
 {
-#if HOST_BIG_ENDIAN != TARGET_BIG_ENDIAN
-    /* The kernel expects ioeventfd values in HOST_BIG_ENDIAN
-     * endianness, but the memory core hands them in target endianness.
-     * For example, PPC is always treated as big-endian even if running
-     * on KVM and on PPC64LE.  Correct here.
-     */
-    switch (size) {
-    case 2:
-        val = bswap16(val);
-        break;
-    case 4:
-        val = bswap32(val);
-        break;
+    if (target_needs_bswap()) {
+        /*
+         * The kernel expects ioeventfd values in HOST_BIG_ENDIAN
+         * endianness, but the memory core hands them in target endianness.
+         * For example, PPC is always treated as big-endian even if running
+         * on KVM and on PPC64LE.  Correct here, swapping back.
+         */
+        switch (size) {
+        case 2:
+            val = bswap16(val);
+            break;
+        case 4:
+            val = bswap32(val);
+            break;
+        }
     }
-#endif
     return val;
 }
 
@@ -3964,7 +3966,7 @@ static int kvm_gdbstub_sstep_flags(void)
     return kvm_sstep_flags;
 }
 
-static void kvm_accel_class_init(ObjectClass *oc, void *data)
+static void kvm_accel_class_init(ObjectClass *oc, const void *data)
 {
     AccelClass *ac = ACCEL_CLASS(oc);
     ac->name = "KVM";