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| author |   Sibi Sankar <quic_sibis@quicinc.com> | 2023-01-17 14:28:35 +0530 |
|---|---|---|
| committer |   Bjorn Andersson <andersson@kernel.org> | 2023-01-18 21:36:17 -0600 |
| commit | 57f72170a2b2a362c35bb9407fc844eac5afdec1 (patch) | |
| tree | 69af6291492a48329503e3aed44b2fc5039084ab /scripts/generate_rust_analyzer.py | |
| parent | Revert "remoteproc: qcom_q6v5_mss: map/unmap metadata region before/after use" (diff) | |
| download | linux-rng-57f72170a2b2a362c35bb9407fc844eac5afdec1.tar.xz linux-rng-57f72170a2b2a362c35bb9407fc844eac5afdec1.zip | |
remoteproc: qcom_q6v5_mss: Use a carveout to authenticate modem headers
Any access to the dynamically allocated metadata region by the application
processor after assigning it to the remote Q6 will result in a XPU
violation. Fix this by replacing the dynamically allocated memory region
with a no-map carveout and unmap the modem metadata memory region before
passing control to the remote Q6.
Reported-and-tested-by: Amit Pundir <amit.pundir@linaro.org>
Fixes: 6c5a9dc2481b ("remoteproc: qcom: Make secure world call for mem ownership switch")
Signed-off-by: Sibi Sankar <quic_sibis@quicinc.com>
Reviewed-by: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org>
Signed-off-by: Bjorn Andersson <andersson@kernel.org>
Link: https://lore.kernel.org/r/20230117085840.32356-7-quic_sibis@quicinc.com
Diffstat (limited to 'scripts/generate_rust_analyzer.py')
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