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[PATCH] hw/i386: Use device_cold_reset() to reset the APIC


From: Peter Maydell
Subject: [PATCH] hw/i386: Use device_cold_reset() to reset the APIC
Date: Thu, 13 Oct 2022 18:19:26 +0100

The semantic difference between the deprecated device_legacy_reset()
function and the newer device_cold_reset() function is that the new
function resets both the device itself and any qbuses it owns,
whereas the legacy function resets just the device itself and nothing
else.

The pc_machine_reset() and microvm_machine_reset() functions use
device_legacy_reset() to reset the APIC; this is an APICCommonState
and does not have any qbuses, so for this purpose the two functions
behave identically and we can stop using the deprecated one.

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
---
NB: tested only with 'make check' and 'make check-avocado'

 hw/i386/microvm.c | 2 +-
 hw/i386/pc.c      | 2 +-
 2 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/hw/i386/microvm.c b/hw/i386/microvm.c
index 7fe8cce03e9..0b08010bf0a 100644
--- a/hw/i386/microvm.c
+++ b/hw/i386/microvm.c
@@ -486,7 +486,7 @@ static void microvm_machine_reset(MachineState *machine)
         cpu = X86_CPU(cs);
 
         if (cpu->apic_state) {
-            device_legacy_reset(cpu->apic_state);
+            device_cold_reset(cpu->apic_state);
         }
     }
 }
diff --git a/hw/i386/pc.c b/hw/i386/pc.c
index 566accf7e60..2b2d0bc2b33 100644
--- a/hw/i386/pc.c
+++ b/hw/i386/pc.c
@@ -1860,7 +1860,7 @@ static void pc_machine_reset(MachineState *machine)
         cpu = X86_CPU(cs);
 
         if (cpu->apic_state) {
-            device_legacy_reset(cpu->apic_state);
+            device_cold_reset(cpu->apic_state);
         }
     }
 }
-- 
2.25.1




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