3  * SELM - The Selector Manager.
18 /** @page pg_selm   SELM - The Selector Manager
20  * SELM takes care of GDT, LDT and TSS shadowing in raw-mode, and the injection
47  * When in raw-mode SELM also injects a few extra GDT selectors which are used
87 /** SELM saved state version. */
118  * Initializes the SELM.
193     rc = SSMR3RegisterInternal(pVM, "selm", 1, SELM_SAVED_STATE_VERSION, sizeof(SELM),
205         STAM_REG(pVM, &pVM->selm.s.StatRCWriteGuestGDTHandled,     STAMTYPE_COUNTER, "/SELM/GC/Write/Guest/GDTInt",  STAMUNIT_OCCURENCES,     "The number of handled writes to the Guest GDT.");
206         STAM_REG(pVM, &pVM->selm.s.StatRCWriteGuestGDTUnhandled,   STAMTYPE_COUNTER, "/SELM/GC/Write/Guest/GDTEmu",  STAMUNIT_OCCURENCES,     "The number of unhandled writes to the Guest GDT.");
207         STAM_REG(pVM, &pVM->selm.s.StatRCWriteGuestLDT,            STAMTYPE_COUNTER, "/SELM/GC/Write/Guest/LDT",     STAMUNIT_OCCURENCES,     "The number of writes to the Guest LDT was detected.");
208         STAM_REG(pVM, &pVM->selm.s.StatRCWriteGuestTSSHandled,     STAMTYPE_COUNTER, "/SELM/GC/Write/Guest/TSSInt",  STAMUNIT_OCCURENCES,     "The number of handled writes to the Guest TSS.");
209         STAM_REG(pVM, &pVM->selm.s.StatRCWriteGuestTSSRedir,       STAMTYPE_COUNTER, "/SELM/GC/Write/Guest/TSSRedir",STAMUNIT_OCCURENCES,     "The number of handled redir bitmap writes to the Guest TSS.");
210         STAM_REG(pVM, &pVM->selm.s.StatRCWriteGuestTSSHandledChanged,STAMTYPE_COUNTER, "/SELM/GC/Write/Guest/TSSIntChg", STAMUNIT_OCCURENCES, "The number of handled writes to the Guest TSS where the R0 stack changed.");
211         STAM_REG(pVM, &pVM->selm.s.StatRCWriteGuestTSSUnhandled,   STAMTYPE_COUNTER, "/SELM/GC/Write/Guest/TSSEmu",  STAMUNIT_OCCURENCES,     "The number of unhandled writes to the Guest TSS.");
212         STAM_REG(pVM, &pVM->selm.s.StatTSSSync,                    STAMTYPE_PROFILE, "/PROF/SELM/TSSSync",           STAMUNIT_TICKS_PER_CALL, "Profiling of the SELMR3SyncTSS() body.");
213         STAM_REG(pVM, &pVM->selm.s.StatUpdateFromCPUM,             STAMTYPE_PROFILE, "/PROF/SELM/UpdateFromCPUM",    STAMUNIT_TICKS_PER_CALL, "Profiling of the SELMR3UpdateFromCPUM() body.");
215         STAM_REL_REG(pVM, &pVM->selm.s.StatHyperSelsChanged,       STAMTYPE_COUNTER, "/SELM/HyperSels/Changed",      STAMUNIT_OCCURENCES,     "The number of times we had to relocate our hypervisor selectors.");
216         STAM_REL_REG(pVM, &pVM->selm.s.StatScanForHyperSels,       STAMTYPE_COUNTER, "/SELM/HyperSels/Scan",         STAMUNIT_OCCURENCES,     "The number of times we had find free hypervisor selectors.");
218         STAM_REL_REG(pVM, &pVM->selm.s.aStatDetectedStaleSReg[X86_SREG_ES], STAMTYPE_COUNTER, "/SELM/UpdateFromCPUM/DetectedStaleES", STAMUNIT_OCCURENCES, "Stale ES was detected in UpdateFromCPUM.");
219         STAM_REL_REG(pVM, &pVM->selm.s.aStatDetectedStaleSReg[X86_SREG_CS], STAMTYPE_COUNTER, "/SELM/UpdateFromCPUM/DetectedStaleCS", STAMUNIT_OCCURENCES, "Stale CS was detected in UpdateFromCPUM.");
220         STAM_REL_REG(pVM, &pVM->selm.s.aStatDetectedStaleSReg[X86_SREG_SS], STAMTYPE_COUNTER, "/SELM/UpdateFromCPUM/DetectedStaleSS", STAMUNIT_OCCURENCES, "Stale SS was detected in UpdateFromCPUM.");
221         STAM_REL_REG(pVM, &pVM->selm.s.aStatDetectedStaleSReg[X86_SREG_DS], STAMTYPE_COUNTER, "/SELM/UpdateFromCPUM/DetectedStaleDS", STAMUNIT_OCCURENCES, "Stale DS was detected in UpdateFromCPUM.");
222         STAM_REL_REG(pVM, &pVM->selm.s.aStatDetectedStaleSReg[X86_SREG_FS], STAMTYPE_COUNTER, "/SELM/UpdateFromCPUM/DetectedStaleFS", STAMUNIT_OCCURENCES, "Stale FS was detected in UpdateFromCPUM.");
223         STAM_REL_REG(pVM, &pVM->selm.s.aStatDetectedStaleSReg[X86_SREG_GS], STAMTYPE_COUNTER, "/SELM/UpdateFromCPUM/DetectedStaleGS", STAMUNIT_OCCURENCES, "Stale GS was detected in UpdateFromCPUM.");
225         STAM_REL_REG(pVM, &pVM->selm.s.aStatAlreadyStaleSReg[X86_SREG_ES],  STAMTYPE_COUNTER, "/SELM/UpdateFromCPUM/AlreadyStaleES", STAMUNIT_OCCURENCES, "Already stale ES in UpdateFromCPUM.");
226         STAM_REL_REG(pVM, &pVM->selm.s.aStatAlreadyStaleSReg[X86_SREG_CS],  STAMTYPE_COUNTER, "/SELM/UpdateFromCPUM/AlreadyStaleCS", STAMUNIT_OCCURENCES, "Already stale CS in UpdateFromCPUM.");
227         STAM_REL_REG(pVM, &pVM->selm.s.aStatAlreadyStaleSReg[X86_SREG_SS],  STAMTYPE_COUNTER, "/SELM/UpdateFromCPUM/AlreadyStaleSS", STAMUNIT_OCCURENCES, "Already stale SS in UpdateFromCPUM.");
228         STAM_REL_REG(pVM, &pVM->selm.s.aStatAlreadyStaleSReg[X86_SREG_DS],  STAMTYPE_COUNTER, "/SELM/UpdateFromCPUM/AlreadyStaleDS", STAMUNIT_OCCURENCES, "Already stale DS in UpdateFromCPUM.");
229         STAM_REL_REG(pVM, &pVM->selm.s.aStatAlreadyStaleSReg[X86_SREG_FS],  STAMTYPE_COUNTER, "/SELM/UpdateFromCPUM/AlreadyStaleFS", STAMUNIT_OCCURENCES, "Already stale FS in UpdateFromCPUM.");
230         STAM_REL_REG(pVM, &pVM->selm.s.aStatAlreadyStaleSReg[X86_SREG_GS],  STAMTYPE_COUNTER, "/SELM/UpdateFromCPUM/AlreadyStaleGS", STAMUNIT_OCCURENCES, "Already stale GS in UpdateFromCPUM.");
232         STAM_REL_REG(pVM, &pVM->selm.s.StatStaleToUnstaleSReg,              STAMTYPE_COUNTER, "/SELM/UpdateFromCPUM/StaleToUnstale", STAMUNIT_OCCURENCES, "Transitions from stale to unstale UpdateFromCPUM.");
234         STAM_REG(    pVM, &pVM->selm.s.aStatUpdatedSReg[X86_SREG_ES],  STAMTYPE_COUNTER, "/SELM/UpdateFromCPUM/UpdatedES", STAMUNIT_OCCURENCES, "Updated hidden ES values in UpdateFromCPUM.");
235         STAM_REG(    pVM, &pVM->selm.s.aStatUpdatedSReg[X86_SREG_CS],  STAMTYPE_COUNTER, "/SELM/UpdateFromCPUM/UpdatedCS", STAMUNIT_OCCURENCES, "Updated hidden CS values in UpdateFromCPUM.");
236         STAM_REG(    pVM, &pVM->selm.s.aStatUpdatedSReg[X86_SREG_SS],  STAMTYPE_COUNTER, "/SELM/UpdateFromCPUM/UpdatedSS", STAMUNIT_OCCURENCES, "Updated hidden SS values in UpdateFromCPUM.");
237         STAM_REG(    pVM, &pVM->selm.s.aStatUpdatedSReg[X86_SREG_DS],  STAMTYPE_COUNTER, "/SELM/UpdateFromCPUM/UpdatedDS", STAMUNIT_OCCURENCES, "Updated hidden DS values in UpdateFromCPUM.");
238         STAM_REG(    pVM, &pVM->selm.s.aStatUpdatedSReg[X86_SREG_FS],  STAMTYPE_COUNTER, "/SELM/UpdateFromCPUM/UpdatedFS", STAMUNIT_OCCURENCES, "Updated hidden FS values in UpdateFromCPUM.");
239         STAM_REG(    pVM, &pVM->selm.s.aStatUpdatedSReg[X86_SREG_GS],  STAMTYPE_COUNTER, "/SELM/UpdateFromCPUM/UpdatedGS", STAMUNIT_OCCURENCES, "Updated hidden GS values in UpdateFromCPUM.");
242     STAM_REG(    pVM, &pVM->selm.s.StatLoadHidSelGst,              STAMTYPE_COUNTER, "/SELM/LoadHidSel/LoadedGuest",   STAMUNIT_OCCURENCES, "SELMLoadHiddenSelectorReg: Loaded from guest tables.");
243     STAM_REG(    pVM, &pVM->selm.s.StatLoadHidSelShw,              STAMTYPE_COUNTER, "/SELM/LoadHidSel/LoadedShadow",  STAMUNIT_OCCURENCES, "SELMLoadHiddenSelectorReg: Loaded from shadow tables.");
244     STAM_REL_REG(pVM, &pVM->selm.s.StatLoadHidSelReadErrors,       STAMTYPE_COUNTER, "/SELM/LoadHidSel/GstReadErrors", STAMUNIT_OCCURENCES, "SELMLoadHiddenSelectorReg: Guest table read errors.");
245     STAM_REL_REG(pVM, &pVM->selm.s.StatLoadHidSelGstNoGood,        STAMTYPE_COUNTER, "/SELM/LoadHidSel/NoGoodGuest",   STAMUNIT_OCCURENCES, "SELMLoadHiddenSelectorReg: No good guest table entry.");
455 /** @todo SELM must be called when any of the CR3s changes during a cpu mode change. */
549  * Terminates the SELM.
567  * For the SELM component this means that any GDT/LDT/TSS monitors
885         Log(("Internal SELM GDT conflict: use non-present entries\n"));
894                 Log(("SELM: Found unused GDT %04X\n", aHyperSel[iGDT]));
904             AssertLogRelMsgFailed(("Internal SELM GDT conflict.\n"));
921         Log(("SELM: Use guest TSS selector %x\n", CPUMGetGuestTR(pVCpu, NULL)));
1328                         Log2(("SELM: Detected stale %s=%#x (was valid)\n", g_aszSRegNms[iSReg], Sel));
1345                         Log2(("SELM: Already stale %s=%#x\n", g_aszSRegNms[iSReg], Sel));
1361                 Log2(("SELM: Detected stale %s=%#x (wasn't valid)\n", g_aszSRegNms[iSReg], Sel));

Indexes created Tue Jul 24 14:28:13 CEST 2018