Changeset 105072 in vbox for trunk/src/VBox/ValidationKit/bootsectors

Timestamp:

Jun 28, 2024 12:03:20 PM (11 months ago)

Author:

vboxsync

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

163692

Message:

VMM/IEM,DBGF,bs3-cpu-weird-1: Early data breakpoint support, mostly untested except for the ring transition tests in bs3-cpu-weird-1. bugref:10715

Location:

trunk/src/VBox/ValidationKit/bootsectors

Files:

• bs3-cpu-weird-1-x0.c (modified) (1 diff)
• bs3-cpu-weird-1.c (modified) (1 diff)

trunk/src/VBox/ValidationKit/bootsectors/bs3-cpu-weird-1-x0.c

@@ -394 +394 @@
          *       erratum is seen with virtually every march since, e.g. skylake SKL009 & SKL111.
          *       Weirdly enougth, they seem to get this right in real mode.  Go figure.
+         *
+         *       Update: In real mode there is no ring transition, so we'll be trampling on
+         *       breakpoint again (POP SS changes SP) when the INT/whatever instruction writes
+         *       the return address.
          */
         g_usBs3TestStep++;

trunk/src/VBox/ValidationKit/bootsectors/bs3-cpu-weird-1.c

@@ -57 +57 @@
 static const BS3TESTMODEBYONEENTRY g_aModeByOneTests[] =
 {
-#if 0 /** @todo fails in native recompiler atm. */ /** @todo asserts in ring-0 on VT-x! */
+#if 1/** @todo asserts in ring-0 on VT-x! */
     { "dbg+inhibit+ringxfer", BS3_CMN_FAR_NM(bs3CpuWeird1_DbgInhibitRingXfer), 0 },
 #endif
-#if 1 /** @todo asserts in native recompiler debug builds, but seems to work otherwise. */
+#if 1
     { "pc wrapping", BS3_CMN_FAR_NM(bs3CpuWeird1_PcWrapping), 0 },
 #endif