arm-trusted-firmware

History

Dimitris Papastamos 6f03bc7753 SDEI: Ensure SDEI handler executes with CVE-2018-3639 mitigation enabled When dynamic mitigation is used, the SDEI handler is required to execute with the mitigation enabled by default, regardless of the mitigation state for lower ELs. This means that if the kernel or hypervisor explicitly disables the mitigation and then later when the event is dispatched, the dispatcher will remember the mitigation state for the lower ELs but force the mitigation to be on during the SDEI handler execution. When the SDEI handler returns, it will restore the mitigation state. This behaviour is described in "Firmware interfaces for mitigating cache speculation vulnerabilities System Software on Arm Systems"[0]. [0] https://developer.arm.com/cache-speculation-vulnerability-firmware-specification Change-Id: I8dd60b736be0aa9e832b0f92d67a401fdeb417f4 Signed-off-by: Dimitris Papastamos <dimitris.papastamos@arm.com>		7 years ago
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arm_arch_svc	Add support for dynamic mitigation for CVE-2018-3639	7 years ago
spd	types: use int-ll64 for both aarch32 and aarch64	7 years ago
std_svc	SDEI: Ensure SDEI handler executes with CVE-2018-3639 mitigation enabled	7 years ago