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Re: [PATCH v2 6/8] hw/isa/vt82c686: Convert reset handler to DeviceReset


From: Li Qiang
Subject: Re: [PATCH v2 6/8] hw/isa/vt82c686: Convert reset handler to DeviceReset
Date: Thu, 10 Oct 2019 09:12:17 +0800



Philippe Mathieu-Daudé <address@hidden> 于2019年10月8日周二 下午10:39写道:
The VIA VT82C686 Southbridge is a PCI device, it will be reset
when the PCI bus it stands on is reset.

Convert its reset handler into a proper Device reset method.

Signed-off-by: Philippe Mathieu-Daudé <address@hidden>

Reviewed-by: Li Qiang <address@hidden>
 
---
 hw/isa/vt82c686.c | 11 ++++-------
 1 file changed, 4 insertions(+), 7 deletions(-)

diff --git a/hw/isa/vt82c686.c b/hw/isa/vt82c686.c
index 50bd28fa82..616f67f347 100644
--- a/hw/isa/vt82c686.c
+++ b/hw/isa/vt82c686.c
@@ -23,7 +23,6 @@
 #include "hw/isa/apm.h"
 #include "hw/acpi/acpi.h"
 #include "hw/i2c/pm_smbus.h"
-#include "sysemu/reset.h"
 #include "qemu/module.h"
 #include "qemu/timer.h"
 #include "exec/address-spaces.h"
@@ -116,11 +115,10 @@ static const MemoryRegionOps superio_ops = {
     },
 };

-static void vt82c686b_reset(void * opaque)
+static void vt82c686b_isa_reset(DeviceState *dev)
 {
-    PCIDevice *d = opaque;
-    uint8_t *pci_conf = d->config;
-    VT82C686BState *vt82c = VT82C686B_DEVICE(d);
+    VT82C686BState *vt82c = VT82C686B_DEVICE(dev);
+    uint8_t *pci_conf = vt82c->dev.config;

     pci_set_long(pci_conf + PCI_CAPABILITY_LIST, 0x000000c0);
     pci_set_word(pci_conf + PCI_COMMAND, PCI_COMMAND_IO | PCI_COMMAND_MEMORY |
@@ -476,8 +474,6 @@ static void vt82c686b_realize(PCIDevice *d, Error **errp)
      * But we do not emulate a floppy, so just set it here. */
     memory_region_add_subregion(isa_bus->address_space_io, 0x3f0,
                                 &vt82c->superio);
-
-    qemu_register_reset(vt82c686b_reset, d);
 }

 ISABus *vt82c686b_isa_init(PCIBus *bus, int devfn)
@@ -501,6 +497,7 @@ static void via_class_init(ObjectClass *klass, void *data)
     k->device_id = PCI_DEVICE_ID_VIA_ISA_BRIDGE;
     k->class_id = PCI_CLASS_BRIDGE_ISA;
     k->revision = 0x40;
+    dc->reset = vt82c686b_isa_reset;
     dc->desc = "ISA bridge";
     dc->vmsd = &vmstate_via;
     /*
--
2.21.0



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