Merge tag 'hppa-boot-reboot-fixes-pull-request' of https://github.com…

…/hdeller/qemu-hppa into staging

target/hppa: Fix boot and reboot for SMP machines

Fix some SMP-related boot and reboot issues with HP-UX and Linux by
correctly initializing the CPU PSW bits, disabling data and instruction
translations and unhalting the CPU in the qemu hppa_machine_reset()
function.

To work correctly some fixes are needed in the SeaBIOS-hppa firmware too,
which is why this series updates it to version 8 which includes those
fixes and enhancements:

Fixes
- boot of HP-UX with SMP, and
- reboot of Linux and HP-UX with SMP

Enhancements:
- show qemu version in boot menu
- adds exit menu entry in boot menu to quit emulation
- allow to trace PCD_CHASSIS codes more specifically

Signed-off-by: Helge Deller <deller@gmx.de>

# -----BEGIN PGP SIGNATURE-----
#
# iHUEABYKAB0WIQS86RI+GtKfB8BJu973ErUQojoPXwUCZJbYWAAKCRD3ErUQojoP
# X6ExAQCmOXqwJw3SjSE/+hvphJ2mMTJe3i6dU3AWOGlACxxVzAEA7dKSU4d8EtRj
# NZpGKB9NE9eWwQFGJVbVgFeikap44gs=
# =8zCK
# -----END PGP SIGNATURE-----
# gpg: Signature made Sat 24 Jun 2023 01:49:44 PM CEST
# gpg:                using EDDSA key BCE9123E1AD29F07C049BBDEF712B510A23A0F5F
# gpg: Good signature from "Helge Deller <deller@gmx.de>" [unknown]
# gpg:                 aka "Helge Deller <deller@kernel.org>" [unknown]
# gpg: WARNING: This key is not certified with a trusted signature!
# gpg:          There is no indication that the signature belongs to the owner.
# Primary key fingerprint: 4544 8228 2CD9 10DB EF3D  25F8 3E5F 3D04 A7A2 4603
#      Subkey fingerprint: BCE9 123E 1AD2 9F07 C049  BBDE F712 B510 A23A 0F5F

* tag 'hppa-boot-reboot-fixes-pull-request' of https://github.com/hdeller/qemu-hppa:
  target/hppa: Update to SeaBIOS-hppa version 8
  target/hppa: Provide qemu version via fw_cfg to firmware
  target/hppa: Fix OS reboot issues

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

hw/hppa/machine.c

@@ -122,6 +122,7 @@ static FWCfgState *create_fw_cfg(MachineState *ms)
 {
     FWCfgState *fw_cfg;
     uint64_t val;
+    const char qemu_version[] = QEMU_VERSION;
 
     fw_cfg = fw_cfg_init_mem(FW_CFG_IO_BASE, FW_CFG_IO_BASE + 4);
     fw_cfg_add_i16(fw_cfg, FW_CFG_NB_CPUS, ms->smp.cpus);
@@ -147,6 +148,10 @@ static FWCfgState *create_fw_cfg(MachineState *ms)
     fw_cfg_add_i16(fw_cfg, FW_CFG_BOOT_DEVICE, ms->boot_config.order[0]);
     qemu_register_boot_set(fw_cfg_boot_set, fw_cfg);
 
+    fw_cfg_add_file(fw_cfg, "/etc/qemu-version",
+                    g_memdup(qemu_version, sizeof(qemu_version)),
+                    sizeof(qemu_version));
+
     return fw_cfg;
 }
 
@@ -418,10 +423,16 @@ static void hppa_machine_reset(MachineState *ms, ShutdownCause reason)
 
     /* Start all CPUs at the firmware entry point.
      *  Monarch CPU will initialize firmware, secondary CPUs
-     *  will enter a small idle look and wait for rendevouz. */
+     *  will enter a small idle loop and wait for rendevouz. */
     for (i = 0; i < smp_cpus; i++) {
-        cpu_set_pc(CPU(cpu[i]), firmware_entry);
+        CPUState *cs = CPU(cpu[i]);
+
+        cpu_set_pc(cs, firmware_entry);
+        cpu[i]->env.psw = PSW_Q;
         cpu[i]->env.gr[5] = CPU_HPA + i * 0x1000;
+
+        cs->exception_index = -1;
+        cs->halted = 0;
     }
 
     /* already initialized by machine_hppa_init()? */