1 /*-
2  * SPDX-License-Identifier: BSD-2-Clause-FreeBSD
32 #define TPM_PPI_QEMU_NAME "qemu"
55 static int
64 	if ((addr & (size - 1)) != 0) {  in tpm_ppi_mem_handler()
71 	off = addr - TPM_PPI_ADDRESS;  in tpm_ppi_mem_handler()
88 static struct mem_range ppi_mmio = {
89 	.name = "ppi-mmio",
96 static int
117 	fwcfg->ppi_address = htole32(TPM_PPI_ADDRESS);  in tpm_ppi_init()
118 	fwcfg->tpm_version = 2;  in tpm_ppi_init()
119 	fwcfg->ppi_version = 1;  in tpm_ppi_init()
152 static void
169 static int
176 	 * According to qemu the Windows ACPI parser has a bug that DerefOf is  in tpm_ppi_write_dsdt_regions()
177 	 * broken for SYSTEM_MEMORY. Due to that bug, qemu uses a dynamic  in tpm_ppi_write_dsdt_regions()
219 static int
226 	    "If(LEqual(Arg0, ToUUID(\"3DDDFAA6-361B-4EB4-A424-8D10089D1653\"))) /* UUID */");  in tpm_ppi_write_dsdt_dsm()
229 	 * Function 0 - _DSM Query Function  in tpm_ppi_write_dsdt_dsm()
233 	 *   Buffer - Index field of supported functions  in tpm_ppi_write_dsdt_dsm()
243 	 * Function 1 - Get Physical Presence Interface Version  in tpm_ppi_write_dsdt_dsm()
247 	 *   String - Supported Physical Presence Interface revision  in tpm_ppi_write_dsdt_dsm()
254 	 * Function 2 - Submit TPM Operation Request to Pre-OS Environment  in tpm_ppi_write_dsdt_dsm()
257 	 *   Integer - Operation Value of the Request  in tpm_ppi_write_dsdt_dsm()
259 	 *   Integer - Function Return Code  in tpm_ppi_write_dsdt_dsm()
260 	 *     0 - Success  in tpm_ppi_write_dsdt_dsm()
261 	 *     1 - Operation Value of the Request Not Supported  in tpm_ppi_write_dsdt_dsm()
262 	 *     2 - General Failure  in tpm_ppi_write_dsdt_dsm()
277 	 * Function 3 - Get Pending TPM Operation Request By the OS  in tpm_ppi_write_dsdt_dsm()
282 	 *     Integer 1 - Function Return Code  in tpm_ppi_write_dsdt_dsm()
283 	 *       0 - Success  in tpm_ppi_write_dsdt_dsm()
284 	 *       1 - General Failure  in tpm_ppi_write_dsdt_dsm()
285 	 *     Integer 2 - Pending operation requested by the OS  in tpm_ppi_write_dsdt_dsm()
286 	 *       0 - None  in tpm_ppi_write_dsdt_dsm()
287 	 *      >0 - Operation Value of the Pending Request  in tpm_ppi_write_dsdt_dsm()
288 	 *     Integer 3 - Optional argument to pending operation requested by  in tpm_ppi_write_dsdt_dsm()
290 	 *       0 - None  in tpm_ppi_write_dsdt_dsm()
291 	 *      >0 - Argument of the Pending Request  in tpm_ppi_write_dsdt_dsm()
308 	 * Function 4 - Get Platform-Specific Action to Transition to Pre-OS  in tpm_ppi_write_dsdt_dsm()
313 	 *   Integer - Action that the OS should take to transition to the  in tpm_ppi_write_dsdt_dsm()
314 	 *             pre-OS environment for execution of a requested operation  in tpm_ppi_write_dsdt_dsm()
315 	 *     0 - None  in tpm_ppi_write_dsdt_dsm()
316 	 *     1 - Shutdown  in tpm_ppi_write_dsdt_dsm()
317 	 *     2 - Reboot  in tpm_ppi_write_dsdt_dsm()
318 	 *     3 - OS Vendor-specific  in tpm_ppi_write_dsdt_dsm()
325 	 * Function 5 - Return TPM Operation Response to OS Environment  in tpm_ppi_write_dsdt_dsm()
330 	 *     Integer 1 - Function Return Code  in tpm_ppi_write_dsdt_dsm()
331 	 *       0 - Success  in tpm_ppi_write_dsdt_dsm()
332 	 *       1 - General Failure  in tpm_ppi_write_dsdt_dsm()
333 	 *     Integer 2 - Most recent operation request  in tpm_ppi_write_dsdt_dsm()
334 	 *       0 - None  in tpm_ppi_write_dsdt_dsm()
335 	 *      >0 - Operation value of the most recent request  in tpm_ppi_write_dsdt_dsm()
336 	 *     Integer 3 - Response to the most recent operation request  in tpm_ppi_write_dsdt_dsm()
337 	 *       0 - Success  in tpm_ppi_write_dsdt_dsm()
338 	 *       0x00000001..0x000000FF - Corresponding TPM error code  in tpm_ppi_write_dsdt_dsm()
339 	 *       0xFFFFFFF0 - User Abort or timeout of dialog  in tpm_ppi_write_dsdt_dsm()
340 	 *       0xFFFFFFF1 - firmware failure  in tpm_ppi_write_dsdt_dsm()
349 	 * Function 6 - Submit preferred user language  in tpm_ppi_write_dsdt_dsm()
353 	 *     String - Preferred language code  in tpm_ppi_write_dsdt_dsm()
356 	 *     3 - Not implemented  in tpm_ppi_write_dsdt_dsm()
363 	 * Function 7 - Submit TPM Operation Request to Pre-OS Environment 2  in tpm_ppi_write_dsdt_dsm()
366 	 *     Integer 1 - Operation Value of the Request  in tpm_ppi_write_dsdt_dsm()
367 	 *     Integer 2 - Argument for Operation  in tpm_ppi_write_dsdt_dsm()
369 	 *   Integer - Function Return Code  in tpm_ppi_write_dsdt_dsm()
370 	 *     0 - Success  in tpm_ppi_write_dsdt_dsm()
371 	 *     1 - Not Implemented  in tpm_ppi_write_dsdt_dsm()
372 	 *     2 - General Failure  in tpm_ppi_write_dsdt_dsm()
373 	 *     3 - Operation blocked by current firmware settings  in tpm_ppi_write_dsdt_dsm()
400 	 * Function 8 - Get User Confirmation Status for Operation  in tpm_ppi_write_dsdt_dsm()
403 	 *     Integer - Operation Value that may need user confirmation  in tpm_ppi_write_dsdt_dsm()
405 	 *   Integer - Function Return Code  in tpm_ppi_write_dsdt_dsm()
406 	 *     0 - Not implemented  in tpm_ppi_write_dsdt_dsm()
407 	 *     1 - Firmware only  in tpm_ppi_write_dsdt_dsm()
408 	 *     2 - Blocked for OS by firmware configuration  in tpm_ppi_write_dsdt_dsm()
409 	 *     3 - Allowed and physically present user required  in tpm_ppi_write_dsdt_dsm()
410 	 *     4 - Allowed and physically present user not required  in tpm_ppi_write_dsdt_dsm()
431 	    "If(LEqual(Arg0, ToUUID(\"376054ED-CC13-4675-901C-4756D7F2D45D\"))) /* UUID */");  in tpm_ppi_write_dsdt_dsm()
434 	 * Function 0 - _DSM Query Function  in tpm_ppi_write_dsdt_dsm()
438 	 *   Buffer - Index field of supported functions  in tpm_ppi_write_dsdt_dsm()
448 	 * Function 1 - Memory Clear  in tpm_ppi_write_dsdt_dsm()
451 	 *     Integer - Operation Value of the Request  in tpm_ppi_write_dsdt_dsm()
453 	 *   Integer - Function Return Code  in tpm_ppi_write_dsdt_dsm()
454 	 *     0 - Success  in tpm_ppi_write_dsdt_dsm()
455 	 *     1 - General Failure  in tpm_ppi_write_dsdt_dsm()
468 static struct tpm_ppi tpm_ppi_qemu = {