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hypervisor: Add get_host_ipa_limit
for AArch64
This commit adds a helper `get_host_ipa_limit` to the AArch64 `KvmHypervisor` struct. This helper can be used to get the `Host_IPA_Limit`, which is the maximum possible value for IPA_Bits on the host and is dependent on the CPU capability and the kernel configuration. Signed-off-by: Henry Wang <Henry.Wang@arm.com>
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@ -100,4 +100,9 @@ pub trait Hypervisor: Send + Sync {
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/// Retrieve the list of MSRs supported by the hypervisor.
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/// Retrieve the list of MSRs supported by the hypervisor.
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///
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///
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fn get_msr_list(&self) -> Result<MsrList>;
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fn get_msr_list(&self) -> Result<MsrList>;
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#[cfg(target_arch = "aarch64")]
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///
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/// Retrieve AArch64 host maximum IPA size supported by KVM.
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///
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fn get_host_ipa_limit(&self) -> i32;
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}
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}
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@ -584,6 +584,13 @@ impl hypervisor::Hypervisor for KvmHypervisor {
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.get_msr_index_list()
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.get_msr_index_list()
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.map_err(|e| hypervisor::HypervisorError::GetMsrList(e.into()))
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.map_err(|e| hypervisor::HypervisorError::GetMsrList(e.into()))
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}
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}
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#[cfg(target_arch = "aarch64")]
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///
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/// Retrieve AArch64 host maximum IPA size supported by KVM.
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///
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fn get_host_ipa_limit(&self) -> i32 {
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self.kvm.get_host_ipa_limit()
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}
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}
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}
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/// Vcpu struct for KVM
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/// Vcpu struct for KVM
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pub struct KvmVcpu {
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pub struct KvmVcpu {
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