8f560cdce4
Introduce and use the "unplug" callback. This is a preparation for multi-stage hotplug handlers, whereby the bus hotplug handler is overwritten by the machine hotplug handler. This handler will then pass control to the bus hotplug handler. So to get this running cleanly, we also have to make sure to go via the hotplug handler chain when actually unplugging a device after an unplug request. Lookup the hotplug handler and call "unplug". Reviewed-by: David Gibson <david@gibson.dropbear.id.au> Signed-off-by: David Hildenbrand <david@redhat.com> Reviewed-by: Michael S. Tsirkin <mst@redhat.com> Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
66 lines
1.8 KiB
C
66 lines
1.8 KiB
C
#ifndef SHPC_H
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#define SHPC_H
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#include "qemu-common.h"
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#include "exec/memory.h"
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#include "hw/hotplug.h"
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#include "hw/pci/pci.h"
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struct SHPCDevice {
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/* Capability offset in device's config space */
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int cap;
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/* # of hot-pluggable slots */
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int nslots;
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/* SHPC WRS: working register set */
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uint8_t *config;
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/* Used to enable checks on load. Note that writable bits are
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* never checked even if set in cmask. */
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uint8_t *cmask;
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/* Used to implement R/W bytes */
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uint8_t *wmask;
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/* Used to implement RW1C(Write 1 to Clear) bytes */
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uint8_t *w1cmask;
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/* MMIO for the SHPC BAR */
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MemoryRegion mmio;
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/* Bus controlled by this SHPC */
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PCIBus *sec_bus;
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/* MSI already requested for this event */
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int msi_requested;
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};
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void shpc_reset(PCIDevice *d);
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int shpc_bar_size(PCIDevice *dev);
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int shpc_init(PCIDevice *dev, PCIBus *sec_bus, MemoryRegion *bar,
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unsigned off, Error **errp);
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void shpc_cleanup(PCIDevice *dev, MemoryRegion *bar);
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void shpc_free(PCIDevice *dev);
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void shpc_cap_write_config(PCIDevice *d, uint32_t addr, uint32_t val, int len);
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void shpc_device_plug_cb(HotplugHandler *hotplug_dev, DeviceState *dev,
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Error **errp);
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void shpc_device_unplug_cb(HotplugHandler *hotplug_dev, DeviceState *dev,
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Error **errp);
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void shpc_device_unplug_request_cb(HotplugHandler *hotplug_dev,
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DeviceState *dev, Error **errp);
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extern VMStateInfo shpc_vmstate_info;
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#define SHPC_VMSTATE(_field, _type, _test) \
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VMSTATE_BUFFER_UNSAFE_INFO_TEST(_field, _type, _test, 0, \
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shpc_vmstate_info, 0)
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static inline bool shpc_present(const PCIDevice *dev)
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{
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return dev->cap_present & QEMU_PCI_CAP_SHPC;
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}
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#endif
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