Re: [PATCH v2 0/2] spi: qcom-geni: Add shutdown and panic notifier support
Mark Brown <[email protected]>
| Newsgroups | org.kernel.vger.linux-spi,org.kernel.vger.linux-arm-msm,org.kernel.vger.linux-kernel |
|---|---|
| Message-ID | <[email protected]> |
On Tue, Aug 18, 2026 at 04:15:53PM +0530, Praveen Talari wrote: > On VM-based platforms, if an SPI DMA transfer is in progress when the > guest is torn down (via reboot/shutdown or a panic/crash), the DMA > engine can keep issuing transactions to IOVAs that have already been > invalidated as part of teardown. The SMMU then raises context faults, > which can affect other VMs sharing the same SMMU instance and obscure > the real root cause of the crash. This doesn't apply against current code, please check and resend.
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