Merge tag 'pull-target-arm-20240425' of https://git.linaro.org/people/pmaydell/qemu-arm into staging

target-arm queue:
 * Implement FEAT_NMI and NMI support in the GICv3
 * hw/dma: avoid apparent overflow in soc_dma_set_request
 * linux-user/flatload.c: Remove unused bFLT shared-library and ZFLAT code
 * Add ResetType argument to Resettable hold and exit phase methods
 * Add RESET_TYPE_SNAPSHOT_LOAD ResetType
 * Implement STM32L4x5 USART

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# gpg: Signature made Thu 25 Apr 2024 03:36:03 AM PDT
# gpg:                using RSA key E1A5C593CD419DE28E8315CF3C2525ED14360CDE
# gpg:                issuer "peter.maydell@linaro.org"
# gpg: Good signature from "Peter Maydell <peter.maydell@linaro.org>" [full]
# gpg:                 aka "Peter Maydell <pmaydell@gmail.com>" [full]
# gpg:                 aka "Peter Maydell <pmaydell@chiark.greenend.org.uk>" [full]
# gpg:                 aka "Peter Maydell <peter@archaic.org.uk>" [unknown]

* tag 'pull-target-arm-20240425' of https://git.linaro.org/people/pmaydell/qemu-arm: (37 commits)
  tests/qtest: Add tests for the STM32L4x5 USART
  hw/arm: Add the USART to the stm32l4x5 SoC
  hw/char/stm32l4x5_usart: Add options for serial parameters setting
  hw/char/stm32l4x5_usart: Enable serial read and write
  hw/char: Implement STM32L4x5 USART skeleton
  reset: Add RESET_TYPE_SNAPSHOT_LOAD
  docs/devel/reset: Update to new API for hold and exit phase methods
  hw, target: Add ResetType argument to hold and exit phase methods
  scripts/coccinelle: New script to add ResetType to hold and exit phases
  allwinner-i2c, adm1272: Use device_cold_reset() for software-triggered reset
  hw/misc: Don't special case RESET_TYPE_COLD in npcm7xx_clk, gcr
  linux-user/flatload.c: Remove unused bFLT shared-library and ZFLAT code
  hw/dma: avoid apparent overflow in soc_dma_set_request
  hw/arm/virt: Enable NMI support in the GIC if the CPU has FEAT_NMI
  target/arm: Add FEAT_NMI to max
  hw/intc/arm_gicv3: Report the VINMI interrupt
  hw/intc/arm_gicv3: Report the NMI interrupt in gicv3_cpuif_update()
  hw/intc/arm_gicv3: Implement NMI interrupt priority
  hw/intc/arm_gicv3: Handle icv_nmiar1_read() for icc_nmiar1_read()
  hw/intc/arm_gicv3: Add NMI handling CPU interface registers
  ...

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

4 files changed, 10 insertions, 21 deletions

diff --git a/hw/core/cpu-common.c b/hw/core/cpu-common.c
index 4bd9c70..a72d48d 100644
--- a/hw/core/cpu-common.c
+++ b/hw/core/cpu-common.c
@@ -113,7 +113,7 @@ void cpu_reset(CPUState *cpu)
     trace_cpu_reset(cpu->cpu_index);
 }
 
-static void cpu_common_reset_hold(Object *obj)
+static void cpu_common_reset_hold(Object *obj, ResetType type)
 {
     CPUState *cpu = CPU(obj);
     CPUClass *cc = CPU_GET_CLASS(cpu);
diff --git a/hw/core/qdev.c b/hw/core/qdev.c
index 00efaf1..f3a996f 100644
--- a/hw/core/qdev.c
+++ b/hw/core/qdev.c
@@ -760,10 +760,10 @@ static void device_phases_reset(DeviceState *dev)
         rc->phases.enter(OBJECT(dev), RESET_TYPE_COLD);
     }
     if (rc->phases.hold) {
-        rc->phases.hold(OBJECT(dev));
+        rc->phases.hold(OBJECT(dev), RESET_TYPE_COLD);
     }
     if (rc->phases.exit) {
-        rc->phases.exit(OBJECT(dev));
+        rc->phases.exit(OBJECT(dev), RESET_TYPE_COLD);
     }
 }
 
diff --git a/hw/core/reset.c b/hw/core/reset.c
index d50da7e..58dfc8d 100644
--- a/hw/core/reset.c
+++ b/hw/core/reset.c
@@ -44,13 +44,6 @@ static ResettableContainer *get_root_reset_container(void)
 }
 
 /*
- * Reason why the currently in-progress qemu_devices_reset() was called.
- * If we made at least SHUTDOWN_CAUSE_SNAPSHOT_LOAD have a corresponding
- * ResetType we could perhaps avoid the need for this global.
- */
-static ShutdownCause device_reset_reason;
-
-/*
  * This is an Object which implements Resettable simply to call the
  * callback function in the hold phase.
  */
@@ -73,12 +66,11 @@ static ResettableState *legacy_reset_get_state(Object *obj)
     return &lr->reset_state;
 }
 
-static void legacy_reset_hold(Object *obj)
+static void legacy_reset_hold(Object *obj, ResetType type)
 {
     LegacyReset *lr = LEGACY_RESET(obj);
 
-    if (device_reset_reason == SHUTDOWN_CAUSE_SNAPSHOT_LOAD &&
-        lr->skip_on_snapshot_load) {
+    if (type == RESET_TYPE_SNAPSHOT_LOAD && lr->skip_on_snapshot_load) {
         return;
     }
     lr->func(lr->opaque);
@@ -180,8 +172,9 @@ void qemu_unregister_resettable(Object *obj)
 
 void qemu_devices_reset(ShutdownCause reason)
 {
-    device_reset_reason = reason;
+    ResetType type = (reason == SHUTDOWN_CAUSE_SNAPSHOT_LOAD) ?
+        RESET_TYPE_SNAPSHOT_LOAD : RESET_TYPE_COLD;
 
     /* Reset the simulation */
-    resettable_reset(OBJECT(get_root_reset_container()), RESET_TYPE_COLD);
+    resettable_reset(OBJECT(get_root_reset_container()), type);
 }
diff --git a/hw/core/resettable.c b/hw/core/resettable.c
index c3df75c..6dd3e3d 100644
--- a/hw/core/resettable.c
+++ b/hw/core/resettable.c
@@ -48,8 +48,6 @@ void resettable_reset(Object *obj, ResetType type)
 
 void resettable_assert_reset(Object *obj, ResetType type)
 {
-    /* TODO: change this assert when adding support for other reset types */
-    assert(type == RESET_TYPE_COLD);
     trace_resettable_reset_assert_begin(obj, type);
     assert(!enter_phase_in_progress);
 
@@ -64,8 +62,6 @@ void resettable_assert_reset(Object *obj, ResetType type)
 
 void resettable_release_reset(Object *obj, ResetType type)
 {
-    /* TODO: change this assert when adding support for other reset types */
-    assert(type == RESET_TYPE_COLD);
     trace_resettable_reset_release_begin(obj, type);
     assert(!enter_phase_in_progress);
 
@@ -181,7 +177,7 @@ static void resettable_phase_hold(Object *obj, void *opaque, ResetType type)
             trace_resettable_transitional_function(obj, obj_typename);
             tr_func(obj);
         } else if (rc->phases.hold) {
-            rc->phases.hold(obj);
+            rc->phases.hold(obj, type);
         }
     }
     trace_resettable_phase_hold_end(obj, obj_typename, s->count);
@@ -204,7 +200,7 @@ static void resettable_phase_exit(Object *obj, void *opaque, ResetType type)
     if (--s->count == 0) {
         trace_resettable_phase_exit_exec(obj, obj_typename, !!rc->phases.exit);
         if (rc->phases.exit && !resettable_get_tr_func(rc, obj)) {
-            rc->phases.exit(obj);
+            rc->phases.exit(obj, type);
         }
     }
     s->exit_phase_in_progress = false;