HPPA64 updates

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Merge tag 'hppa-latest-pull-request' of https://github.com/hdeller/qemu-hppa into staging

HPPA64 updates

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* tag 'hppa-latest-pull-request' of https://github.com/hdeller/qemu-hppa:
  roms/hppa: Add build rules for hppa-firmware
  pc-bios/README: Add information about hppa-firmware
  pc-bios/meson: Add hppa-firmware64.img blob
  target/hppa: Restore unwind_breg before calculating ior
  target: hppa: Fix unaligned double word accesses for hppa64

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>

pc-bios/README

@@ -75,3 +75,9 @@
   initialize and run boot images stored in SPI flash, but may grow more
   features over time as needed. The source code is available at:
   https://github.com/google/vbootrom
+
+- hppa-firmware.img (32-bit) and hppa-firmware64.img (64-bit) are firmware
+  files for the HP-PARISC (hppa) architecture.
+  They are built form the SeaBIOS-hppa sources, which is a fork of SeaBIOS
+  adapted for hppa.
+  SeaBIOS-hppa is available at https://github.com/hdeller/seabios-hppa

pc-bios/meson.build

@@ -73,6 +73,7 @@ blobs = [
   'qemu_vga.ndrv',
   'edk2-licenses.txt',
   'hppa-firmware.img',
+  'hppa-firmware64.img',
   'opensbi-riscv32-generic-fw_dynamic.bin',
   'opensbi-riscv64-generic-fw_dynamic.bin',
   'npcm7xx_bootrom.bin',

roms/Makefile

@@ -68,6 +68,7 @@ default help:
 	@echo "  opensbi32-generic  -- update OpenSBI for 32-bit generic machine"
 	@echo "  opensbi64-generic  -- update OpenSBI for 64-bit generic machine"
 	@echo "  qboot              -- update qboot"
+	@echo "  hppa-firmware      -- update 32- and 64-bit hppa firmware"
 	@echo "  clean              -- delete the files generated by the previous" \
 	                              "build targets"
 
@@ -177,6 +178,11 @@ npcm7xx_bootrom:
 	$(MAKE) -C vbootrom CROSS_COMPILE=$(arm_cross_prefix)
 	cp vbootrom/npcm7xx_bootrom.bin ../pc-bios/npcm7xx_bootrom.bin
 
+hppa-firmware:
+	$(MAKE) -C seabios-hppa parisc
+	cp seabios-hppa/out/hppa-firmware.img      ../pc-bios/
+	cp seabios-hppa/out-64/hppa-firmware64.img ../pc-bios/
+
 clean:
 	rm -rf seabios/.config seabios/out seabios/builds
 	$(MAKE) -C ipxe/src veryclean
@@ -189,3 +195,4 @@ clean:
 	$(MAKE) -C opensbi clean
 	$(MAKE) -C qboot clean
 	$(MAKE) -C vbootrom clean
+	$(MAKE) -C seabios-hppa clean

target/hppa/cpu.c

@@ -121,9 +121,10 @@ void hppa_cpu_do_unaligned_access(CPUState *cs, vaddr addr,
     CPUHPPAState *env = &cpu->env;
 
     cs->exception_index = EXCP_UNALIGN;
+    cpu_restore_state(cs, retaddr);
     hppa_set_ior_and_isr(env, addr, MMU_IDX_MMU_DISABLED(mmu_idx));
 
-    cpu_loop_exit_restore(cs, retaddr);
+    cpu_loop_exit(cs);
 }
 #endif /* CONFIG_USER_ONLY */
 

target/hppa/helper.c

@@ -76,7 +76,8 @@ void cpu_hppa_put_psw(CPUHPPAState *env, target_ulong psw)
     }
     psw &= ~reserved;
 
-    env->psw = psw & ~(PSW_N | PSW_V | PSW_CB);
+    env->psw = psw & (uint32_t)~(PSW_N | PSW_V | PSW_CB);
+
     env->psw_n = (psw / PSW_N) & 1;
     env->psw_v = -((psw / PSW_V) & 1);
 

target/hppa/mem_helper.c

@@ -348,9 +348,10 @@ raise_exception_with_ior(CPUHPPAState *env, int excp, uintptr_t retaddr,
     CPUState *cs = env_cpu(env);
 
     cs->exception_index = excp;
+    cpu_restore_state(cs, retaddr);
     hppa_set_ior_and_isr(env, addr, mmu_disabled);
 
-    cpu_loop_exit_restore(cs, retaddr);
+    cpu_loop_exit(cs);
 }
 
 void hppa_cpu_do_transaction_failed(CPUState *cs, hwaddr physaddr,

target/hppa/op_helper.c

@@ -351,11 +351,12 @@ target_ulong HELPER(probe)(CPUHPPAState *env, target_ulong addr,
     excp = hppa_get_physical_address(env, addr, mmu_idx, 0, &phys,
                                      &prot, NULL);
     if (excp >= 0) {
+        cpu_restore_state(env_cpu(env), GETPC());
         hppa_set_ior_and_isr(env, addr, MMU_IDX_MMU_DISABLED(mmu_idx));
         if (excp == EXCP_DTLB_MISS) {
             excp = EXCP_NA_DTLB_MISS;
         }
-        hppa_dynamic_excp(env, excp, GETPC());
+        helper_excp(env, excp);
     }
     return (want & prot) != 0;
 #endif