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SHM Bridge is a safety mechanism allowing to limit the amount of memory shared between the kernel and the TrustZone to regions explicitly marked as such. Add low-level primitives for enabling SHM bridge support as well as creating and destroying SHM bridges to qcom-scm. Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org> Acked-by: Andrew Halaney <ahalaney@redhat.com> Tested-by: Andrew Halaney <ahalaney@redhat.com> # sc8280xp-lenovo-thinkpad-x13s Tested-by: Deepti Jaggi <quic_djaggi@quicinc.com> #sa8775p-ride Reviewed-by: Elliot Berman <quic_eberman@quicinc.com> Link: https://lore.kernel.org/r/20240527-shm-bridge-v10-10-ce7afaa58d3a@linaro.org Signed-off-by: Bjorn Andersson <andersson@kernel.org> |
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| linux | ||
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