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Questions - acpi

How to Decide Port I/O Address of ACPI Timer

According to OSDev, to locate the Port I/O address of ACPI timer, we first open FADT table and check entries PM Timer Block Length and PM Timer Block Address. In my computer, PM Timer Block Address gi...
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citrate

operating-system

virtual-machine

uefi

acpi

Votes: 0

Answers: 1

Latest Answer

Firmware (e.g. OVMF) uses chipset specific methods to determine the IO port of the ACPI timer; and then constructs the FADT and fills it in so that an OS doesn't need to be chipset specific. If you do...
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Brendan

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