bhyve: save softc of ACPI devices
This will be useful for writing device specific ACPI tables or DSDT methods. Reviewed by: markj MFC after: 1 week Sponsored by: Beckhoff Automation GmbH & Co. KG Differential Revision: https://reviews.freebsd.org/D39322
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@ -36,18 +36,20 @@ struct acpi_resource_list_entry {
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* Holds information about an ACPI device.
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*
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* @param vm_ctx VM context the ACPI device was created in.
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* @param softc A pointer to the software context of the ACPI device.
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* @param emul Device emulation struct. It contains some information like the
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name of the ACPI device and some device specific functions.
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* @param crs Current resources used by the ACPI device.
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*/
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struct acpi_device {
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struct vmctx *vm_ctx;
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void *softc;
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const struct acpi_device_emul *emul;
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SLIST_HEAD(acpi_resource_list, acpi_resource_list_entry) crs;
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};
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int
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acpi_device_create(struct acpi_device **const new_dev,
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acpi_device_create(struct acpi_device **const new_dev, void *const softc,
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struct vmctx *const vm_ctx, const struct acpi_device_emul *const emul)
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{
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assert(new_dev != NULL);
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@ -60,6 +62,7 @@ acpi_device_create(struct acpi_device **const new_dev,
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}
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dev->vm_ctx = vm_ctx;
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dev->softc = softc;
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dev->emul = emul;
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SLIST_INIT(&dev->crs);
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@ -136,6 +139,14 @@ acpi_device_add_res_fixed_memory32(struct acpi_device *const dev,
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return (0);
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}
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void *
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acpi_device_get_softc(const struct acpi_device *const dev)
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{
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assert(dev != NULL);
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return (dev->softc);
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}
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int
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acpi_device_build_table(const struct acpi_device *const dev)
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{
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@ -38,13 +38,14 @@ struct acpi_device_emul {
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* Creates an ACPI device.
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*
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* @param[out] new_dev Returns the newly create ACPI device.
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* @param[in] softc Pointer to the software context of the ACPI device.
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* @param[in] vm_ctx VM context the ACPI device is created in.
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* @param[in] emul Device emulation struct. It contains some information
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* like the name of the ACPI device and some device specific
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* functions.
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*/
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int acpi_device_create(struct acpi_device **new_dev, struct vmctx *vm_ctx,
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const struct acpi_device_emul *emul);
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int acpi_device_create(struct acpi_device **new_dev, void *softc,
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struct vmctx *vm_ctx, const struct acpi_device_emul *emul);
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void acpi_device_destroy(struct acpi_device *dev);
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int acpi_device_add_res_fixed_ioport(struct acpi_device *dev, UINT16 port,
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@ -52,5 +53,7 @@ int acpi_device_add_res_fixed_ioport(struct acpi_device *dev, UINT16 port,
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int acpi_device_add_res_fixed_memory32(struct acpi_device *dev,
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UINT8 write_protected, UINT32 address, UINT32 length);
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void *acpi_device_get_softc(const struct acpi_device *dev);
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int acpi_device_build_table(const struct acpi_device *dev);
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int acpi_device_write_dsdt(const struct acpi_device *dev);
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@ -401,7 +401,7 @@ qemu_fwcfg_init(struct vmctx *const ctx)
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* tables and register io ports for fwcfg, if it's used.
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*/
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if (strcmp(lpc_fwcfg(), "qemu") == 0) {
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error = acpi_device_create(&fwcfg_sc.acpi_dev, ctx,
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error = acpi_device_create(&fwcfg_sc.acpi_dev, &fwcfg_sc, ctx,
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&qemu_fwcfg_acpi_device_emul);
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if (error) {
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warnx("%s: failed to create ACPI device for QEMU FwCfg",
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