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Diffstat (limited to 'tboot/include/txt/config_regs.h')
| -rw-r--r-- | tboot/include/txt/config_regs.h | 240 |
1 files changed, 240 insertions, 0 deletions
diff --git a/tboot/include/txt/config_regs.h b/tboot/include/txt/config_regs.h new file mode 100644 index 0000000..4d02ea4 --- /dev/null +++ b/tboot/include/txt/config_regs.h @@ -0,0 +1,240 @@ +/* + * config_regs.h: Intel(r) TXT configuration register -related definitions + * + * Copyright (c) 2003-2011, Intel Corporation + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * + * * Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * * Redistributions in binary form must reproduce the above + * copyright notice, this list of conditions and the following + * disclaimer in the documentation and/or other materials provided + * with the distribution. + * * Neither the name of the Intel Corporation nor the names of its + * contributors may be used to endorse or promote products derived + * from this software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS + * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT + * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS + * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE + * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, + * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES + * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR + * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, + * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) + * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED + * OF THE POSSIBILITY OF SUCH DAMAGE. + * + */ + +#ifndef __TXT_CONFIG_REGS_H__ +#define __TXT_CONFIG_REGS_H__ + +/* + * TXT configuration registers (offsets from TXT_{PUB, PRIV}_CONFIG_REGS_BASE) + */ + +#define TXT_PUB_CONFIG_REGS_BASE 0xfed30000 +#define TXT_PRIV_CONFIG_REGS_BASE 0xfed20000 + +#define TXT_CONFIG_REGS_SIZE (TXT_PUB_CONFIG_REGS_BASE - \ + TXT_PRIV_CONFIG_REGS_BASE) + +/* offsets to config regs (from either public or private _BASE) */ +#define TXTCR_STS 0x0000 +#define TXTCR_ESTS 0x0008 +#define TXTCR_ERRORCODE 0x0030 +#define TXTCR_CMD_RESET 0x0038 +#define TXTCR_CMD_CLOSE_PRIVATE 0x0048 +#define TXTCR_VER_FSBIF 0x0100 +#define TXTCR_DIDVID 0x0110 +#define TXTCR_VER_QPIIF 0x0200 +#define TXTCR_CMD_UNLOCK_MEM_CONFIG 0x0218 +#define TXTCR_SINIT_BASE 0x0270 +#define TXTCR_SINIT_SIZE 0x0278 +#define TXTCR_MLE_JOIN 0x0290 +#define TXTCR_HEAP_BASE 0x0300 +#define TXTCR_HEAP_SIZE 0x0308 +#define TXTCR_MSEG_BASE 0x0310 +#define TXTCR_MSEG_SIZE 0x0318 +#define TXTCR_DPR 0x0330 +#define TXTCR_CMD_OPEN_LOCALITY1 0x0380 +#define TXTCR_CMD_CLOSE_LOCALITY1 0x0388 +#define TXTCR_CMD_OPEN_LOCALITY2 0x0390 +#define TXTCR_CMD_CLOSE_LOCALITY2 0x0398 +#define TXTCR_PUBLIC_KEY 0x0400 +#define TXTCR_CMD_SECRETS 0x08e0 +#define TXTCR_CMD_NO_SECRETS 0x08e8 +#define TXTCR_E2STS 0x08f0 + +/* + * format of ERRORCODE register + */ +typedef union { + uint64_t _raw; + struct { + uint64_t type : 30; /* external-specific error code */ + uint64_t external : 1; /* 0=from proc, 1=from external SW */ + uint64_t valid : 1; /* 1=valid */ + }; +} txt_errorcode_t; + +/* + * format of ESTS register + */ +typedef union { + uint64_t _raw; + struct { + uint64_t txt_reset_sts : 1; + }; +} txt_ests_t; + +/* + * format of E2STS register + */ +typedef union { + uint64_t _raw; + struct { + uint64_t reserved : 1; + uint64_t secrets_sts : 1; + }; +} txt_e2sts_t; + +/* + * format of STS register + */ +typedef union { + uint64_t _raw; + struct { + uint64_t senter_done_sts : 1; + uint64_t sexit_done_sts : 1; + uint64_t reserved1 : 4; + uint64_t mem_config_lock_sts : 1; + uint64_t private_open_sts : 1; + uint64_t reserved2 : 7; + uint64_t locality_1_open_sts : 1; + uint64_t locality_2_open_sts : 1; + }; +} txt_sts_t; + +/* + * format of DIDVID register + */ +typedef union { + uint64_t _raw; + struct { + uint16_t vendor_id; + uint16_t device_id; + uint16_t revision_id; + uint16_t reserved; + }; +} txt_didvid_t; + +/* + * format of VER.FSBIF and VER.QPIIF registers + */ +typedef union { + uint64_t _raw; + struct { + uint64_t reserved : 31; + uint64_t prod_fused : 1; + }; +} txt_ver_fsbif_qpiif_t; + +/* + * format of DPR register + */ +typedef union { + uint64_t _raw; + struct { + uint64_t lock : 1; + uint64_t reserved1 : 3; + uint64_t size : 8; + uint64_t reserved2 : 8; + uint64_t top : 12; + uint64_t reserved3 : 32; + }; +} txt_dpr_t; + +/* + * RLP JOIN structure for GETSEC[WAKEUP] and MLE_JOIN register + */ +typedef struct { + uint32_t gdt_limit; + uint32_t gdt_base; + uint32_t seg_sel; /* cs (ds, es, ss are seg_sel+8) */ + uint32_t entry_point; /* phys addr */ +} mle_join_t; + +/* + * format of MSEG header + */ +typedef struct { + uint32_t revision_id; + uint32_t smm_mon_feat; + uint32_t gdtr_limit; + uint32_t gdtr_base_offset; + uint32_t cs_sel; + uint32_t eip_offset; + uint32_t esp_offset; + uint32_t cr3_offset; +} mseg_hdr_t; + +/* TODO these are causing warnings - changed to ull */ + +/* + * fns to read/write TXT config regs + */ + +#ifndef IS_INCLUDED +static inline uint64_t read_config_reg(uint64_t config_regs_base, uint32_t reg) +{ + /* these are MMIO so make sure compiler doesn't optimize */ + return *(volatile uint64_t *)(unsigned long long)(config_regs_base + reg); +} +#endif + +static inline void write_config_reg(uint64_t config_regs_base, uint32_t reg, + uint64_t val) +{ + /* these are MMIO so make sure compiler doesn't optimize */ + *(volatile uint64_t *)(unsigned long long)(config_regs_base + reg) = val; +} + +static inline uint64_t read_pub_config_reg(uint32_t reg) +{ + return read_config_reg(TXT_PUB_CONFIG_REGS_BASE, reg); +} + +static inline void write_pub_config_reg(uint32_t reg, uint64_t val) +{ + write_config_reg(TXT_PUB_CONFIG_REGS_BASE, reg, val); +} + +static inline uint64_t read_priv_config_reg(uint32_t reg) +{ + return read_config_reg(TXT_PRIV_CONFIG_REGS_BASE, reg); +} + +static inline void write_priv_config_reg(uint32_t reg, uint64_t val) +{ + write_config_reg(TXT_PRIV_CONFIG_REGS_BASE, reg, val); +} + +#endif /* __TXT_CONFIG_REGS_H__ */ + +/* + * Local variables: + * mode: C + * c-set-style: "BSD" + * c-basic-offset: 4 + * tab-width: 4 + * indent-tabs-mode: nil + * End: + */ |