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- Use either MSR_TSX_FORCE_ABORT or MSR_IA32_TSX_CTRL to disable TSX to cover all CPUs which allow to disable it. - Disable TSX development mode at boot so that a microcode update which provides TSX development mode does not suddenly make the system vulnerable to TSX Asynchronous Abort. -----BEGIN PGP SIGNATURE----- iQJHBAABCgAxFiEEQp8+kY+LLUocC4bMphj1TA10mKEFAmJb5LYTHHRnbHhAbGlu dXRyb25peC5kZQAKCRCmGPVMDXSYoVVbD/9cxZWkFctCiymedUZqLabkfpYSki65 MngdpCPzCNaaIdlp44lwCido5+gJsY9unXdm3OAUzLjv6SsxxpDr5njz1/C6TM1l XmWjlkLEbG2QDPd1Ybd/lpYQORBmiukyo8v8x0yFT7ZzwvSddoDZAbeUtkQBrIin sDTeExsewKzL2X5qXhttrHLHu1PYgurn4ThIrrG+eg2e4FNk6UUFUS3TOyMvzJDg NWJ7N5pGy9YkR7CISq1q+qdnH55pGaUrgonDi2qBTt3EaH0fQtZP2ZtIOYr3O4nI YCx6isrIiGUB6kSygofxmk4B+22CaUJXd2OcUxMZ/Th/a2aCK+35BtGVPXQGi6nU d7m+ZWB7dShOiejFygS59ty+5L5kliKXYZfUASsq1CLoXH8K1xUwBMkbY5FQ2WH1 Ue4KUvjguNqsgSRAfeHdOi6B36oot0Xf9JO013Wm3V/r9hsGPtSOjWwFuVvT/euw a9iFtruATxDssBxH/l0djCKnwwm5yuOt1OpyizcIMFnlCgRD06h/6zgAvsJK7c8d dh6lC4D2mXP1e2wtEyZelve1tmRJ/FeReyG2V5FNU7m1mWYGm1rJZ4AEvnbrzcbC ePwFva0lPu8GVKG6HRgHfR8PjuQ7TFmKPKytT7fboIqQpTIY+1Q75wYD4eXkSu8Q /ltzXQz/8lz7bA== =UQaW -----END PGP SIGNATURE----- Merge tag 'x86-urgent-2022-04-17' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip Pull x86 fixes from Thomas Gleixner: "Two x86 fixes related to TSX: - Use either MSR_TSX_FORCE_ABORT or MSR_IA32_TSX_CTRL to disable TSX to cover all CPUs which allow to disable it. - Disable TSX development mode at boot so that a microcode update which provides TSX development mode does not suddenly make the system vulnerable to TSX Asynchronous Abort" * tag 'x86-urgent-2022-04-17' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: x86/tsx: Disable TSX development mode at boot x86/tsx: Use MSR_TSX_CTRL to clear CPUID bits |
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