Changeset 75397 in vbox

Timestamp:

Nov 12, 2018 2:11:00 PM (6 years ago)

Author:

vboxsync

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

126535

Message:

VMM/IEM: Nested VMX: bugref:9180 PPR virtualization.

File:

• trunk/src/VBox/VMM/VMMAll/IEMAllCImplVmxInstr.cpp.h (modified) (1 diff)

trunk/src/VBox/VMM/VMMAll/IEMAllCImplVmxInstr.cpp.h

@@ -4428 +4428 @@
 
 /**
+ * VMX VM-exit handler for PPR virtualization.
+ *
+ * @returns VBox strict status code.
+ * @param   pVCpu       The cross context virtual CPU structure.
+ */
+IEM_STATIC VBOXSTRICTRC iemVmxVmexitPprVirtualization(PVMCPU pVCpu)
+{
+    PCVMXVVMCS pVmcs = pVCpu->cpum.GstCtx.hwvirt.vmx.CTX_SUFF(pVmcs);
+    Assert(pVmcs);
+
+    Assert(pVmcs->u32ProcCtls & VMX_PROC_CTLS_USE_TPR_SHADOW);
+    Assert(pVmcs->u32ProcCtls2 & VMX_PROC_CTLS2_VIRT_INT_DELIVERY);
+
+    uint32_t const uVTpr = iemVmxVirtApicReadRaw32(pVCpu, XAPIC_OFF_TPR);
+    uint32_t const uSvi  = pVmcs->u16GuestIntStatus >> 8;
+
+    uint32_t uVPpr;
+    if (((uVTpr >> 4) & 0xf) >= (uSvi >> 4) & 0xf)
+        uVPpr = uVTpr & 0xff;
+    else
+        uVPpr = uSvi & 0xf0;
+
+    iemVmxVirtApicWriteRaw32(pVCpu, XAPIC_OFF_PPR, uVPpr);
+    Log2(("ppr_virt: uVTpr=%u uSvi=%u -> VM-exit\n", uVTpr, uSvi));
+}
+
+
+/**
  * VMX VM-exit handler for TPR virtualization.
  *