Changeset 85748 in vbox

Timestamp:

Aug 13, 2020 10:20:38 AM (5 years ago)

Author:

vboxsync

svn:sync-xref-src-repo-rev:

139896

Message:

SUPDrv: Added flag for detecting Virtualized VMSAVE/VMLOAD feature on AMD CPUs.

Location:

trunk

Files:

• include/VBox/sup.h (modified) (1 diff)
• src/VBox/HostDrivers/Support/SUPDrv.cpp (modified) (1 diff)

trunk/include/VBox/sup.h

@@ -888 +888 @@
 /** VT-x: VMCS shadowing is supported. */
 #define SUPVTCAPS_VTX_VMCS_SHADOWING        RT_BIT(4)
+/** AMD-V: Virtualized VMSAVE/VMLOAD is supported. */
+#define SUPVTCAPS_AMDV_VIRT_VMSAVE_VMLOAD   RT_BIT(5)
 /** @} */
 

trunk/src/VBox/HostDrivers/Support/SUPDrv.cpp

@@ -4452 +4452 @@
                 if (fSvmFeatures & X86_CPUID_SVM_FEATURE_EDX_NESTED_PAGING)
                     *pfCaps |= SUPVTCAPS_NESTED_PAGING;
+                if (fSvmFeatures & X86_CPUID_SVM_FEATURE_EDX_VIRT_VMSAVE_VMLOAD)
+                    *pfCaps |= SUPVTCAPS_AMDV_VIRT_VMSAVE_VMLOAD;
             }
         }