ACPI NVS region might not be mapped on prelaunched-VM

projectacrn / acrn-hypervisor

Project ACRN hypervisor

BSD 3-Clause "New" or "Revised" License

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ACPI NVS region might not be mapped on prelaunched-VM #6423

Closed yfliuuu closed 2 years ago

yfliuuu commented 3 years ago

In hypervisor codebase there is an assumption that ACPI NVS/Data region for pre-launched VM is at most 1M. This assumption is no longer true since recent patches to enlarge the ACPI NVS region. As a result the ACPI NVS region might not be mapped because the remaining_hpa_size (arch/x86/guest/vm.c, prepare_prelaunched_vm_memmap) is not large enough.

yfliuuu commented 3 years ago

[External_System_ID] ACRN-7346

NanlinXie commented 2 years ago

Closed since patch merged without regression.