From e44e3482bdb4d0ebde2d8b41830ac2cdb07948fb Mon Sep 17 00:00:00 2001 From: Yang Zhang Date: Fri, 28 Aug 2015 09:58:54 +0800 Subject: Add qemu 2.4.0 Change-Id: Ic99cbad4b61f8b127b7dc74d04576c0bcbaaf4f5 Signed-off-by: Yang Zhang --- qemu/hw/tpm/tpm_tis.h | 70 +++++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 70 insertions(+) create mode 100644 qemu/hw/tpm/tpm_tis.h (limited to 'qemu/hw/tpm/tpm_tis.h') diff --git a/qemu/hw/tpm/tpm_tis.h b/qemu/hw/tpm/tpm_tis.h new file mode 100644 index 000000000..a1df41fa2 --- /dev/null +++ b/qemu/hw/tpm/tpm_tis.h @@ -0,0 +1,70 @@ +/* + * tpm_tis.h - QEMU's TPM TIS interface emulator + * + * Copyright (C) 2006, 2010-2013 IBM Corporation + * + * Authors: + * Stefan Berger + * David Safford + * + * This work is licensed under the terms of the GNU GPL, version 2 or later. + * See the COPYING file in the top-level directory. + * + * Implementation of the TIS interface according to specs found at + * http://www.trustedcomputinggroup.org + * + */ +#ifndef TPM_TPM_TIS_H +#define TPM_TPM_TIS_H + +#include "hw/isa/isa.h" +#include "hw/acpi/tpm.h" +#include "qemu-common.h" + +#define TPM_TIS_NUM_LOCALITIES 5 /* per spec */ +#define TPM_TIS_LOCALITY_SHIFT 12 +#define TPM_TIS_NO_LOCALITY 0xff + +#define TPM_TIS_IS_VALID_LOCTY(x) ((x) < TPM_TIS_NUM_LOCALITIES) + +#define TPM_TIS_BUFFER_MAX 4096 + +typedef enum { + TPM_TIS_STATE_IDLE = 0, + TPM_TIS_STATE_READY, + TPM_TIS_STATE_COMPLETION, + TPM_TIS_STATE_EXECUTION, + TPM_TIS_STATE_RECEPTION, +} TPMTISState; + +/* locality data -- all fields are persisted */ +typedef struct TPMLocality { + TPMTISState state; + uint8_t access; + uint32_t sts; + uint32_t iface_id; + uint32_t inte; + uint32_t ints; + + uint16_t w_offset; + uint16_t r_offset; + TPMSizedBuffer w_buffer; + TPMSizedBuffer r_buffer; +} TPMLocality; + +typedef struct TPMTISEmuState { + QEMUBH *bh; + uint32_t offset; + uint8_t buf[TPM_TIS_BUFFER_MAX]; + + uint8_t active_locty; + uint8_t aborting_locty; + uint8_t next_locty; + + TPMLocality loc[TPM_TIS_NUM_LOCALITIES]; + + qemu_irq irq; + uint32_t irq_num; +} TPMTISEmuState; + +#endif /* TPM_TPM_TIS_H */ -- cgit 1.2.3-korg