bhyve: allow building device specific ACPI tables
Some ACPI devices require a device specific acpi table. E.g. a TPM2 device requires a TPM2 table. Use the acpi_device_emul struct to define such a device specific table. Reviewed by: markj MFC after: 1 week Sponsored by: Beckhoff Automation GmbH & Co. KG Differential Revision: https://reviews.freebsd.org/D39320
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@ -810,6 +810,13 @@ acpi_build(struct vmctx *ctx, int ncpu)
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BASL_EXEC(build_mcfg(ctx));
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BASL_EXEC(build_facs(ctx));
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BASL_EXEC(build_spcr(ctx));
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/* Build ACPI device-specific tables such as a TPM2 table. */
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const struct acpi_device_list_entry *entry;
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SLIST_FOREACH(entry, &acpi_devices, chain) {
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BASL_EXEC(acpi_device_build_table(entry->dev));
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}
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BASL_EXEC(build_dsdt(ctx));
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BASL_EXEC(basl_finish());
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@ -135,6 +135,19 @@ 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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int
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acpi_device_build_table(const struct acpi_device *const dev)
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{
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assert(dev != NULL);
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assert(dev->emul != NULL);
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if (dev->emul->build_table != NULL) {
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return (dev->emul->build_table(dev));
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}
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return (0);
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}
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static void
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acpi_device_write_dsdt_crs(const struct acpi_device *const dev)
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{
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@ -16,9 +16,19 @@ struct vmctx;
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struct acpi_device;
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/**
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* Device specific information and emulation.
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*
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* @param name Used as device name in the DSDT.
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* @param hid Used as _HID in the DSDT.
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* @param build_table Called to build a device specific ACPI table like the TPM2
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* table.
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*/
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struct acpi_device_emul {
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const char *name;
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const char *hid;
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int (*build_table)(const struct acpi_device *dev);
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};
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/**
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@ -39,4 +49,5 @@ 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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int acpi_device_build_table(const struct acpi_device *dev);
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void acpi_device_write_dsdt(const struct acpi_device *dev);
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