axvm 0.5.24

Virtual Machine resource management crate for ArceOS's hypervisor variant.
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//! LoongArch64 implementations of AxVM platform capability hooks.

use super::LoongArch64Arch;
use crate::architecture::{GuestBootPlatform, HostTimePlatform};

impl GuestBootPlatform for LoongArch64Arch {
    fn init_guest_boot_resources() {
        super::boot::init();
    }

    fn prepare_guest_boot(
        vm_config: &mut crate::config::AxVMConfig,
        vm_create_config: &mut axvmconfig::AxVMCrateConfig,
        _provider: &dyn crate::boot::BootImageProvider,
    ) -> crate::AxVmResult<Option<crate::boot::fdt::GuestDtbImage>> {
        if vm_create_config.kernel.effective_boot_protocol() != axvmconfig::VMBootProtocol::Uefi {
            return crate::ax_err!(
                Unsupported,
                "LoongArch AxVisor guests currently require UEFI boot"
            );
        }
        super::boot::prepare_uefi_fdt_config(vm_config, vm_create_config)?;
        Ok(None)
    }
}

impl HostTimePlatform for LoongArch64Arch {
    fn set_oneshot_timer(_deadline_ns: u64) {}

    fn register_timer_callback() {
        ax_std::os::arceos::modules::ax_task::register_timer_callback(|_| {
            crate::check_timer_events();
        });
    }
}

pub fn host_fdt_bootarg() -> usize {
    ax_std::os::arceos::modules::ax_hal::dtb::get_bootarg()
}

pub fn host_phys_to_virt(paddr: ax_memory_addr::PhysAddr) -> ax_memory_addr::VirtAddr {
    ax_std::os::arceos::modules::ax_hal::mem::phys_to_virt(paddr)
}