TFV-7: Trusted Firmware-A exposure to cache speculation vulnerability Variant 4

[danh-arm]

Please note there is a new TF-A security advisory, describing the Arm Trusted Firmware exposure to a new variant 4 of the speculative processor vulnerabilities using cache timing side-channels:

https://github.com/ARM-software/arm-trusted-firmware/wiki/Trusted-Firmware-A-Security-Advisory-TFV-7

For more information about these vulnerabilities, please see the Google Project Zero bug tracker and Arm Processor Security Update:

https://bugs.chromium.org/p/project-zero/issues/detail?id=1528 http://www.arm.com/security-update

[danh-arm]

Please note the above advisory has been updated. Changes in this version:

• Added information about Cortex-A76 mitigation and a link to the PR that implements this.