arch/x86/process.cc

151 I386Process::syscall(int64_t callnum, ThreadContext *tc, Fault *fault)
153     PCState pc = tc->pcState();
158         tc->pcState(pc);
160     X86Process::syscall(callnum, tc, fault);
357             ThreadContext * tc = system->getThreadContext(contextIds[i]);
359             tc->setMiscReg(MISCREG_CS, cs);
360             tc->setMiscReg(MISCREG_DS, ds);
361             tc->setMiscReg(MISCREG_ES, ds);
362             tc->setMiscReg(MISCREG_FS, ds);
363             tc->setMiscReg(MISCREG_GS, ds);
364             tc->setMiscReg(MISCREG_SS, ds);
367             tc->setMiscReg(MISCREG_TSL, 0);
371             tc->setMiscReg(MISCREG_TSL_ATTR, tslAttr);
373             tc->setMiscReg(MISCREG_TSG_BASE, GDTVirtAddr);
374             tc->setMiscReg(MISCREG_TSG_LIMIT, 8 * numGDTEntries - 1);
376             tc->setMiscReg(MISCREG_TR, tssSel);
377             tc->setMiscReg(MISCREG_TR_BASE, tss_base_addr);
378             tc->setMiscReg(MISCREG_TR_EFF_BASE, 0);
379             tc->setMiscReg(MISCREG_TR_LIMIT, tss_limit);
380             tc->setMiscReg(MISCREG_TR_ATTR, tss_attr);
383             installSegDesc(tc, SEGMENT_REG_CS, csDesc, true);
384             installSegDesc(tc, SEGMENT_REG_DS, dsDesc, true);
385             installSegDesc(tc, SEGMENT_REG_ES, dsDesc, true);
386             installSegDesc(tc, SEGMENT_REG_FS, dsDesc, true);
387             installSegDesc(tc, SEGMENT_REG_GS, dsDesc, true);
388             installSegDesc(tc, SEGMENT_REG_SS, dsDesc, true);
397             tc->setMiscReg(MISCREG_EFER, efer);
414             tc->setMiscReg(MISCREG_CR0, cr0);
417             tc->setMiscReg(MISCREG_CR2, cr2);
420             tc->setMiscReg(MISCREG_CR3, cr3);
437             tc->setMiscReg(MISCREG_CR4, cr4);
440             tc->setMiscReg(MISCREG_CR8, cr8);
442             tc->setMiscReg(MISCREG_MXCSR, 0x1f80);
444             tc->setMiscReg(MISCREG_APIC_BASE, 0xfee00900);
446             tc->setMiscReg(MISCREG_TSG_BASE, GDTVirtAddr);
447             tc->setMiscReg(MISCREG_TSG_LIMIT, 0xffff);
449             tc->setMiscReg(MISCREG_IDTR_BASE, IDTVirtAddr);
450             tc->setMiscReg(MISCREG_IDTR_LIMIT, 0xffff);
454             tc->setMiscReg(MISCREG_STAR, star);
456             tc->setMiscReg(MISCREG_LSTAR, lstar);
458             tc->setMiscReg(MISCREG_SF_MASK, sfmask);
568             ThreadContext * tc = system->getThreadContext(contextIds[i]);
586                 tc->setMiscRegNoEffect(MISCREG_SEG_BASE(seg), 0);
587                 tc->setMiscRegNoEffect(MISCREG_SEG_EFF_BASE(seg), 0);
588                 tc->setMiscRegNoEffect(MISCREG_SEG_ATTR(seg), dataAttr);
605             tc->setMiscRegNoEffect(MISCREG_CS_ATTR, csAttr);
614             tc->setMiscReg(MISCREG_EFER, efer);
631             tc->setMiscReg(MISCREG_CR0, cr0);
633             tc->setMiscReg(MISCREG_MXCSR, 0x1f80);
679         ThreadContext * tc = system->getThreadContext(contextIds[i]);
697             tc->setMiscRegNoEffect(MISCREG_SEG_BASE(seg), 0);
698             tc->setMiscRegNoEffect(MISCREG_SEG_EFF_BASE(seg), 0);
699             tc->setMiscRegNoEffect(MISCREG_SEG_ATTR(seg), dataAttr);
700             tc->setMiscRegNoEffect(MISCREG_SEG_SEL(seg), 0xB);
701             tc->setMiscRegNoEffect(MISCREG_SEG_LIMIT(seg), (uint32_t)(-1));
718         tc->setMiscRegNoEffect(MISCREG_CS_ATTR, csAttr);
720         tc->setMiscRegNoEffect(MISCREG_TSG_BASE, _gdtStart);
721         tc->setMiscRegNoEffect(MISCREG_TSG_EFF_BASE, _gdtStart);
722         tc->setMiscRegNoEffect(MISCREG_TSG_LIMIT, _gdtStart + _gdtSize - 1);
725         tc->setMiscRegNoEffect(MISCREG_TSL, 0);
734         tc->setMiscReg(MISCREG_EFER, efer);
751         tc->setMiscReg(MISCREG_CR0, cr0);
753         tc->setMiscReg(MISCREG_MXCSR, 0x1f80);
1033     ThreadContext *tc = system->getThreadContext(contextIds[0]);
1035     tc->setIntReg(StackPointerReg, stack_min);
1039     tc->pcState(getStartPC());
1065 X86Process::setSyscallReturn(ThreadContext *tc, SyscallReturn retval)
1067     tc->setIntReg(INTREG_RAX, retval.encodedValue());
1071 X86_64Process::getSyscallArg(ThreadContext *tc, int &i)
1074     return tc->readIntReg(ArgumentReg[i++]);
1078 X86_64Process::setSyscallArg(ThreadContext *tc, int i, RegVal val)
1081     return tc->setIntReg(ArgumentReg[i], val);
1093 I386Process::getSyscallArg(ThreadContext *tc, int &i)
1096     return tc->readIntReg(ArgumentReg32[i++]);
1100 I386Process::getSyscallArg(ThreadContext *tc, int &i, int width)
1104     uint64_t retVal = tc->readIntReg(ArgumentReg32[i++]) & mask(32);
1106         retVal |= ((uint64_t)tc->readIntReg(ArgumentReg[i++]) << 32);
1111 I386Process::setSyscallArg(ThreadContext *tc, int i, RegVal val)
1114     return tc->setIntReg(ArgumentReg[i], val);