ACIL FM

Nama	Ukuran	Aksi
9pfs.h	1.43 MB	View DL Edit
blkif.h	12.9 MB	View DL Edit
console.h	587 B	View DL Edit
displif.h	43.23 MB	View DL Edit
fbif.h	4.48 MB	View DL Edit
kbdif.h	23.7 MB	View DL Edit
netif.h	34.76 MB	View DL Edit
pciif.h	3.52 MB	View DL Edit
protocols.h	697 B	View DL Edit
pvcalls.h	3.04 MB	View DL Edit
ring.h	23.2 MB	View DL Edit
sndif.h	48.32 MB	View DL Edit
tpmif.h	1.66 MB	View DL Edit
vscsiif.h	8.7 MB	View DL Edit
xenbus.h	1.15 MB	View DL Edit
xs_wire.h	2.21 MB	View DL Edit

Edit file: /usr/src/kernels/5.14.0-611.34.1.el9_7.x86_64/include/xen/interface/io/tpmif.h

/******************************************************************************
 * tpmif.h
 *
 * TPM I/O interface for Xen guest OSes, v2
 *
 * This file is in the public domain.
 *
 */

#ifndef __XEN_PUBLIC_IO_TPMIF_H__
#define __XEN_PUBLIC_IO_TPMIF_H__

/*
 * Xenbus state machine
 *
 * Device open:
 *   1. Both ends start in XenbusStateInitialising
 *   2. Backend transitions to InitWait (frontend does not wait on this step)
 *   3. Frontend populates ring-ref, event-channel, feature-protocol-v2
 *   4. Frontend transitions to Initialised
 *   5. Backend maps grant and event channel, verifies feature-protocol-v2
 *   6. Backend transitions to Connected
 *   7. Frontend verifies feature-protocol-v2, transitions to Connected
 *
 * Device close:
 *   1. State is changed to XenbusStateClosing
 *   2. Frontend transitions to Closed
 *   3. Backend unmaps grant and event, changes state to InitWait
 */

enum vtpm_shared_page_state {
	VTPM_STATE_IDLE,         /* no contents / vTPM idle / cancel complete */
	VTPM_STATE_SUBMIT,       /* request ready / vTPM working */
	VTPM_STATE_FINISH,       /* response ready / vTPM idle */
	VTPM_STATE_CANCEL,       /* cancel requested / vTPM working */
};
/* The backend should only change state to IDLE or FINISH, while the
 * frontend should only change to SUBMIT or CANCEL. */

struct vtpm_shared_page {
	uint32_t length;         /* request/response length in bytes */

uint8_t state;           /* enum vtpm_shared_page_state */
	uint8_t locality;        /* for the current request */
	uint8_t pad;

uint8_t nr_extra_pages;  /* extra pages for long packets; may be zero */
	uint32_t extra_pages[]; /* grant IDs; length in nr_extra_pages */
};

#endif

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