On 08.11.23 12:18, Nicolas Saenz Julienne wrote:
Introduce HVCALL_TRANSLATE_VIRTUAL_ADDRESS, the hypercall receives a GVA, generally from a less privileged VTL, and returns the GPA backing it. The GVA -> GPA conversion is done by walking the target VTL's vCPU MMU. NOTE: The hypercall implementation is incomplete and only shared for completion. Additionally we'd like to move the VTL aware parts to user-space.
Yes, please :). We should handle the complete hypercall in user space if possible. If you're afraid that gva -> gpa conversion may run out of sync between a user space and the kvm implementations, let's introduce an ioctl that allows you to perform that conversion.
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