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cxl-ide: support tx/rx trans to insecure state #345

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Merged
jyao1 merged 1 commit into from
Feb 2, 2026
Merged

cxl-ide: support tx/rx trans to insecure state #345

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6 changes: 6 additions & 0 deletions teeio-validator/include/cxl_ide_lib.h
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Original file line number Diff line number Diff line change
Expand Up @@ -69,6 +69,12 @@ void cxl_cfg_rp_txrx_key_valid(
bool valid
);

void cxl_cfg_rp_txrx_transto_insecure_state(
INTEL_KEYP_CXL_ROOT_COMPLEX_KCBAR *kcbar_ptr,
CXL_IDE_STREAM_DIRECTION direction,
bool insecure_state
);

void cxl_cfg_rp_start_trigger(
INTEL_KEYP_CXL_ROOT_COMPLEX_KCBAR *kcbar_ptr,
bool start
Expand Down
4 changes: 3 additions & 1 deletion teeio-validator/include/intel_keyp.h
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Expand Up @@ -230,7 +230,9 @@ typedef union {
uint32_t start_trigger:1;
uint32_t rxkey_valid:1;
uint32_t txkey_valid:1;
uint32_t rsvd:29;
uint32_t txtransto_insecure_state:1;
uint32_t rxtransto_insecure_state:1;
uint32_t rsvd:27;
};
uint32_t raw;
} INTEL_KEYP_CXL_LINK_ENC_CONTROL;
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27 changes: 25 additions & 2 deletions teeio-validator/library/cxl_ide_lib/cxl_ide.c
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Original file line number Diff line number Diff line change
Expand Up @@ -71,6 +71,8 @@ bool cxl_reset_kcbar_registers(ide_common_test_port_context_t *port_context)

TEEIO_DEBUG((TEEIO_DEBUG_INFO, "cxl_reset_kcbar_registers before link_enc_ctrl=0x%08x\n", enc_ctrl.raw));

enc_ctrl.rxtransto_insecure_state = 0;
enc_ctrl.txtransto_insecure_state = 0;
enc_ctrl.rxkey_valid = 0;
enc_ctrl.txkey_valid = 0;
enc_ctrl.start_trigger = 0;
Expand Down Expand Up @@ -819,6 +821,27 @@ void cxl_cfg_rp_txrx_key_valid(
TEEIO_DEBUG((TEEIO_DEBUG_INFO, "cxl_cfg_rp_txrx_key_valid (direct=%d) after link_enc_control = 0x%08x\n", direction, enc_ctrl.raw));
}

void cxl_cfg_rp_txrx_transto_insecure_state(
INTEL_KEYP_CXL_ROOT_COMPLEX_KCBAR *kcbar_ptr,
CXL_IDE_STREAM_DIRECTION direction,
bool insecure_state
)
{
INTEL_KEYP_CXL_LINK_ENC_CONTROL enc_ctrl = {.raw = mmio_read_reg32(&kcbar_ptr->link_enc_control)};
TEEIO_DEBUG((TEEIO_DEBUG_INFO, "cxl_cfg_rp_txrx_transto_insecure_state (direct=%d) before link_enc_control = 0x%08x\n", direction, enc_ctrl.raw));

if(direction == CXL_IDE_STREAM_DIRECTION_RX) {
enc_ctrl.rxtransto_insecure_state = insecure_state ? 1 : 0;
} else {
enc_ctrl.txtransto_insecure_state = insecure_state ? 1 : 0;
}

mmio_write_reg32(&kcbar_ptr->link_enc_control, enc_ctrl.raw);

enc_ctrl.raw = mmio_read_reg32(&kcbar_ptr->link_enc_control);
TEEIO_DEBUG((TEEIO_DEBUG_INFO, "cxl_cfg_rp_txrx_transto_insecure_state (direct=%d) after link_enc_control = 0x%08x\n", direction, enc_ctrl.raw));
}

void cxl_cfg_rp_start_trigger(
INTEL_KEYP_CXL_ROOT_COMPLEX_KCBAR *kcbar_ptr,
bool start
Expand Down Expand Up @@ -890,8 +913,8 @@ void cxl_dump_kcbar(INTEL_KEYP_CXL_ROOT_COMPLEX_KCBAR *kcbar_ptr)

INTEL_KEYP_CXL_LINK_ENC_CONTROL enc_control = {.raw = mmio_read_reg32(&kcbar_ptr->link_enc_control)};
TEEIO_PRINT(("enc_control : %08x\n", enc_control.raw));
TEEIO_PRINT((" start_trigger=%d, rxkey_valid=%d, txkey_valid=%d\n",
enc_control.start_trigger, enc_control.rxkey_valid, enc_control.txkey_valid));
TEEIO_PRINT((" start_trigger=%d, rxkey_valid=%d, txkey_valid=%d\n, txtransto_insecure_state: %d, rxtransto_insecure_state: %d",
enc_control.start_trigger, enc_control.rxkey_valid, enc_control.txkey_valid, enc_control.txtransto_insecure_state, enc_control.rxtransto_insecure_state));

}

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4 changes: 4 additions & 0 deletions teeio-validator/library/cxl_ide_test_lib/test_case/ide_km_common.c
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Original file line number Diff line number Diff line change
Expand Up @@ -447,6 +447,10 @@ bool cxl_teardown_ide_stream(void *test_context)

INTEL_KEYP_CXL_ROOT_COMPLEX_KCBAR *kcbar_ptr = (INTEL_KEYP_CXL_ROOT_COMPLEX_KCBAR *)upper_port->mapped_kcbar_addr;

// set RXTRANSTOINSECURESTATE and TXTRANSTOINSECURESTATE on the RootPort side
cxl_cfg_rp_txrx_transto_insecure_state(kcbar_ptr, CXL_IDE_STREAM_DIRECTION_RX, true);
cxl_cfg_rp_txrx_transto_insecure_state(kcbar_ptr, CXL_IDE_STREAM_DIRECTION_TX, true);

// clear LinkEncEnable on the RootPort side
cxl_cfg_rp_linkenc_enable(kcbar_ptr, false);

Expand Down
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