Re: [PATCH RFCv2 00/13] iommu: Add MSI mapping support with nested SMMU

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On Tue, Feb 04, 2025 at 01:55:01PM +0100, Eric Auger wrote:

> OK so you need to set host sw_msi_start to the guest doorbell GPA which
> is currently set, in qemu, at
> GITS_TRANSLATER 0x08080000 + 0x10000

Yes (but don't do this except for testing)

The challenge that remains is how to build an API to get each ITS page
mapped into the S2 at the right position - ideally statically before
the VM is booted.

Jason




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