Merge tag 'pull-ppc-for-20250928-20250929' of https://gitlab.com/harshpb/qemu into staging

ppc queue for 20250928

* Support for PowerNV11 and PPE42 CPU/Machines.
* Deprecation of Power8E and Power8NVL
* Decodetree patches for some floating-point instructions
* Minor bug fixes, improvements in ppc/spapr/xive/xics.

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* tag 'pull-ppc-for-20250928-20250929' of https://gitlab.com/harshpb/qemu: (27 commits)
  target/ppc: use MAKE_64BIT_MASK for mcrfs exception clear mask
  target/ppc: Deprecate Power8E and Power8NVL
  target/ppc: Introduce macro for deprecating PowerPC CPUs
  target/ppc: Move remaining floating-point move instructions to decodetree.
  target/ppc: Move floating-point move instructions to decodetree.
  target/ppc: Move floating-point compare instructions to decodetree.
  target/ppc: Move floating-point rounding and conversion instructions to decodetree.
  ppc/xive2: Fix integer overflow warning in xive2_redistribute()
  ppc/spapr: init lrdr-capapcity phys with ram size if maxmem not provided
  hw/intc/xics: Add missing call to register vmstate_icp_server
  tests/functional: Add test for IBM PPE42 instructions
  hw/ppc: Add a test machine for the IBM PPE42 CPU
  hw/ppc: Support for an IBM PPE42 CPU decrementer
  target/ppc: Add IBM PPE42 special instructions
  target/ppc: Support for IBM PPE42 MMU
  target/ppc: Add IBM PPE42 exception model
  target/ppc: IBM PPE42 exception flags and regs
  target/ppc: Add IBM PPE42 family of processors
  target/ppc: IBM PPE42 general regs and flags
  tests/powernv: Add PowerNV test for Power11
  ...

Signed-off-by: Richard Henderson <richard.henderson@linaro.org>

1 files changed, 79 insertions, 0 deletions

diff --git a/tests/functional/ppc/test_ppe42.py b/tests/functional/ppc/test_ppe42.py
new file mode 100644
index 0000000000..26bbe11b2d
--- /dev/null
+++ b/tests/functional/ppc/test_ppe42.py
@@ -0,0 +1,79 @@
+#!/usr/bin/env python3
+#
+# Functional tests for the IBM PPE42 processor
+#
+# Copyright (c) 2025, IBM Corporation
+#
+# SPDX-License-Identifier: GPL-2.0-or-later
+
+from qemu_test import QemuSystemTest, Asset
+import asyncio
+
+class Ppe42Machine(QemuSystemTest):
+
+    timeout = 90
+    poll_period = 1.0
+
+    ASSET_PPE42_TEST_IMAGE = Asset(
+        ('https://github.com/milesg-github/ppe42-tests/raw/refs/heads/main/'
+         'images/ppe42-test.out'),
+        '03c1ac0fb7f6c025102a02776a93b35101dae7c14b75e4eab36a337e39042ea8')
+
+    def _test_completed(self):
+        self.log.info("Checking for test completion...")
+        try:
+            output = self.vm.cmd('human-monitor-command',
+                                 command_line='info registers')
+        except Exception as err:
+            self.log.debug(f"'info registers' cmd failed due to {err=},"
+                            " {type(err)=}")
+            raise
+
+        self.log.info(output)
+        if "NIP fff80200" in output:
+            self.log.info("<test completed>")
+            return True
+        else:
+            self.log.info("<test not completed>")
+            return False
+
+    def _wait_pass_fail(self, timeout):
+        while not self._test_completed():
+            if timeout >= self.poll_period:
+                timeout = timeout - self.poll_period
+                self.log.info(f"Waiting {self.poll_period} seconds for test"
+                               " to complete...")
+                e = None
+                try:
+                    e = self.vm.event_wait('STOP', self.poll_period)
+
+                except asyncio.TimeoutError:
+                    self.log.info("Poll period ended.")
+                    pass
+
+                except Exception as err:
+                    self.log.debug(f"event_wait() failed due to {err=},"
+                                    " {type(err)=}")
+                    raise
+
+                if e != None:
+                    self.log.debug(f"Execution stopped: {e}")
+                    self.log.debug("Exiting due to test failure")
+                    self.fail("Failure detected!")
+                    break
+            else:
+                self.fail("Timed out waiting for test completion.")
+
+    def test_ppe42_instructions(self):
+        self.set_machine('ppe42_machine')
+        self.require_accelerator("tcg")
+        image_path = self.ASSET_PPE42_TEST_IMAGE.fetch()
+        self.vm.add_args('-nographic')
+        self.vm.add_args('-device', f'loader,file={image_path}')
+        self.vm.add_args('-device', 'loader,addr=0xfff80040,cpu-num=0')
+        self.vm.add_args('-action', 'panic=pause')
+        self.vm.launch()
+        self._wait_pass_fail(self.timeout)
+
+if __name__ == '__main__':
+    QemuSystemTest.main()