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[Pal/Linux-SGX] tools: Support upstreamed driver in is_sgx_available #2438

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Jun 18, 2021
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[Pal/Linux-SGX] tools: Support upstreamed driver in is_sgx_available #2438

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5 changes: 3 additions & 2 deletions Pal/src/host/Linux-SGX/tools/is-sgx-available/is_sgx_available.cpp
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Original file line number Diff line number Diff line change
Expand Up @@ -165,8 +165,9 @@ class SgxCpuChecker {
};

bool sgx_driver_loaded() {
// /dev/isgx is for LKM version, /dev/sgx is for in-kernel support.
return file_exists("/dev/isgx") || file_exists("/dev/sgx");
return file_exists("/dev/isgx") // LKM version
|| file_exists("/dev/sgx") // old in-kernel patchset (<= 5.10) or DCAP drivers
|| file_exists("/dev/sgx_enclave"); // upstreamed drivers (>= 5.11)
}

bool psw_installed() {
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