Revert 8d0fa80 and ed7116d

loopholelabs · Apr 19, 2024 · e7734f3 · e7734f3
1 parent bee01a3
commit e7734f3
Showing 1 changed file with 0 additions and 13 deletions.
diff --git a/src/vmm/src/cpu_config/x86_64/cpuid/amd/normalize.rs b/src/vmm/src/cpu_config/x86_64/cpuid/amd/normalize.rs
@@ -24,8 +24,6 @@ pub enum NormalizeCpuidError {
     MissingLeaf0x80000000,
     /// Missing leaf 0x80000001.
     MissingLeaf0x80000001,
-    /// Missing leaf 0x40000001.
-    MissingLeaf0x40000001,
     /// Failed to set feature entry leaf: {0}
     FeatureEntry(#[from] FeatureEntryError),
     /// Failed to set extended cache topology leaf: {0}
@@ -112,7 +110,6 @@ impl super::AmdCpuid {
         self.update_extended_cache_topology_entry(cpu_count, cpus_per_core)?;
         self.update_extended_apic_id_entry(cpu_index, cpus_per_core)?;
         self.update_brand_string_entry()?;
-        self.disable_kvm_feature_async_pf()?;
 
         Ok(())
     }
@@ -410,16 +407,6 @@ impl super::AmdCpuid {
             .map_err(NormalizeCpuidError::BrandString)?;
         Ok(())
     }
-
-    fn disable_kvm_feature_async_pf(&mut self) -> Result<(), NormalizeCpuidError> {
-        let leaf_40000001 = self
-            .get_mut(&CpuidKey::leaf(0x40000001))
-            .ok_or(NormalizeCpuidError::MissingLeaf0x40000001)?;
-
-        // Disable KVM_FEATURE_ASYNC_PF
-        set_bit(&mut leaf_40000001.result.eax, 14, false);
-        Ok(())
-    }
 }
 
 #[cfg(test)]