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Re: [PATCH 14/42] hw/isa/piix3: Modernize reset handling


From: Philippe Mathieu-Daudé
Subject: Re: [PATCH 14/42] hw/isa/piix3: Modernize reset handling
Date: Thu, 1 Sep 2022 22:33:17 +0200
User-agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10.15; rv:91.0) Gecko/20100101 Thunderbird/91.13.0

On 1/9/22 18:25, Bernhard Beschow wrote:
Rather than registering the reset handler via a function which
appends the handler to a global list, prefer to implement it as
a virtual method - PIIX4 does the same already.

Signed-off-by: Bernhard Beschow <shentey@gmail.com>
---
  hw/isa/piix3.c | 8 +++-----
  1 file changed, 3 insertions(+), 5 deletions(-)

diff --git a/hw/isa/piix3.c b/hw/isa/piix3.c
index c8c2dd6048..0350f70706 100644
--- a/hw/isa/piix3.c
+++ b/hw/isa/piix3.c
@@ -31,7 +31,6 @@
  #include "hw/qdev-properties.h"
  #include "hw/isa/isa.h"
  #include "hw/xen/xen.h"
-#include "sysemu/reset.h"
  #include "sysemu/runstate.h"
  #include "migration/vmstate.h"
  #include "hw/acpi/acpi_aml_interface.h"
@@ -156,9 +155,9 @@ static void piix3_write_config_xen(PCIDevice *dev,
      piix3_write_config(dev, address, val, len);
  }
-static void piix3_reset(void *opaque)
+static void piix3_reset(DeviceState *dev)
  {
-    PIIX3State *d = opaque;
+    PIIX3State *d = PIIX3_PCI_DEVICE(dev);
      uint8_t *pci_conf = d->dev.config;
pci_conf[0x04] = 0x07; /* master, memory and I/O */
@@ -321,8 +320,6 @@ static void pci_piix3_realize(PCIDevice *dev, Error **errp)
      memory_region_add_subregion_overlap(pci_address_space_io(dev),
                                          PIIX_RCR_IOPORT, &d->rcr_mem, 1);
- qemu_register_reset(piix3_reset, d);
-
      i8257_dma_init(isa_bus, 0);
/* RTC */
@@ -397,6 +394,7 @@ static void pci_piix3_class_init(ObjectClass *klass, void 
*data)
      PCIDeviceClass *k = PCI_DEVICE_CLASS(klass);
      AcpiDevAmlIfClass *adevc = ACPI_DEV_AML_IF_CLASS(klass);
+ dc->reset = piix3_reset;
      dc->desc        = "ISA bridge";
      dc->vmsd        = &vmstate_piix3;
      dc->hotpluggable   = false;

Yay 4 years later...
https://lore.kernel.org/qemu-devel/20180108024558.17983-28-f4bug@amsat.org/

Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>



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