diff options
Diffstat (limited to 'kvm')
| -rw-r--r-- | kvm/src/lib.rs | 12 |
1 files changed, 12 insertions, 0 deletions
diff --git a/kvm/src/lib.rs b/kvm/src/lib.rs index 8b98b7c..1b06b39 100644 --- a/kvm/src/lib.rs +++ b/kvm/src/lib.rs @@ -2045,6 +2045,18 @@ impl CpuId { unsafe { self.kvm_cpuid[0].entries.as_mut_slice(nent) } } + /// Get the entries slice, for inspecting. To modify, use mut_entries_slice instead. + pub fn entries_slice(&self) -> &[kvm_cpuid_entry2] { + // Mapping the unsized array to a slice is unsafe because the length isn't known. Using + // the length we originally allocated with eliminates the possibility of overflow. + let slice_size = if self.kvm_cpuid[0].nent as usize > self.allocated_len { + self.allocated_len + } else { + self.kvm_cpuid[0].nent as usize + }; + unsafe { self.kvm_cpuid[0].entries.as_slice(slice_size) } + } + /// Get a pointer so it can be passed to the kernel. Using this pointer is unsafe. pub fn as_ptr(&self) -> *const kvm_cpuid2 { &self.kvm_cpuid[0] |