x86/kvm/emulate.c

31 #include "tss.h"
2668 				struct tss_segment_16 *tss)
2670 	tss->ip = ctxt->_eip;
2671 	tss->flag = ctxt->eflags;
2672 	tss->ax = reg_read(ctxt, VCPU_REGS_RAX);
2673 	tss->cx = reg_read(ctxt, VCPU_REGS_RCX);
2674 	tss->dx = reg_read(ctxt, VCPU_REGS_RDX);
2675 	tss->bx = reg_read(ctxt, VCPU_REGS_RBX);
2676 	tss->sp = reg_read(ctxt, VCPU_REGS_RSP);
2677 	tss->bp = reg_read(ctxt, VCPU_REGS_RBP);
2678 	tss->si = reg_read(ctxt, VCPU_REGS_RSI);
2679 	tss->di = reg_read(ctxt, VCPU_REGS_RDI);
2681 	tss->es = get_segment_selector(ctxt, VCPU_SREG_ES);
2682 	tss->cs = get_segment_selector(ctxt, VCPU_SREG_CS);
2683 	tss->ss = get_segment_selector(ctxt, VCPU_SREG_SS);
2684 	tss->ds = get_segment_selector(ctxt, VCPU_SREG_DS);
2685 	tss->ldt = get_segment_selector(ctxt, VCPU_SREG_LDTR);
2689 				 struct tss_segment_16 *tss)
2694 	ctxt->_eip = tss->ip;
2695 	ctxt->eflags = tss->flag | 2;
2696 	*reg_write(ctxt, VCPU_REGS_RAX) = tss->ax;
2697 	*reg_write(ctxt, VCPU_REGS_RCX) = tss->cx;
2698 	*reg_write(ctxt, VCPU_REGS_RDX) = tss->dx;
2699 	*reg_write(ctxt, VCPU_REGS_RBX) = tss->bx;
2700 	*reg_write(ctxt, VCPU_REGS_RSP) = tss->sp;
2701 	*reg_write(ctxt, VCPU_REGS_RBP) = tss->bp;
2702 	*reg_write(ctxt, VCPU_REGS_RSI) = tss->si;
2703 	*reg_write(ctxt, VCPU_REGS_RDI) = tss->di;
2709 	set_segment_selector(ctxt, tss->ldt, VCPU_SREG_LDTR);
2710 	set_segment_selector(ctxt, tss->es, VCPU_SREG_ES);
2711 	set_segment_selector(ctxt, tss->cs, VCPU_SREG_CS);
2712 	set_segment_selector(ctxt, tss->ss, VCPU_SREG_SS);
2713 	set_segment_selector(ctxt, tss->ds, VCPU_SREG_DS);
2715 	cpl = tss->cs & 3;
2721 	ret = __load_segment_descriptor(ctxt, tss->ldt, VCPU_SREG_LDTR, cpl,
2725 	ret = __load_segment_descriptor(ctxt, tss->es, VCPU_SREG_ES, cpl,
2729 	ret = __load_segment_descriptor(ctxt, tss->cs, VCPU_SREG_CS, cpl,
2733 	ret = __load_segment_descriptor(ctxt, tss->ss, VCPU_SREG_SS, cpl,
2737 	ret = __load_segment_descriptor(ctxt, tss->ds, VCPU_SREG_DS, cpl,
2780 				struct tss_segment_32 *tss)
2783 	tss->eip = ctxt->_eip;
2784 	tss->eflags = ctxt->eflags;
2785 	tss->eax = reg_read(ctxt, VCPU_REGS_RAX);
2786 	tss->ecx = reg_read(ctxt, VCPU_REGS_RCX);
2787 	tss->edx = reg_read(ctxt, VCPU_REGS_RDX);
2788 	tss->ebx = reg_read(ctxt, VCPU_REGS_RBX);
2789 	tss->esp = reg_read(ctxt, VCPU_REGS_RSP);
2790 	tss->ebp = reg_read(ctxt, VCPU_REGS_RBP);
2791 	tss->esi = reg_read(ctxt, VCPU_REGS_RSI);
2792 	tss->edi = reg_read(ctxt, VCPU_REGS_RDI);
2794 	tss->es = get_segment_selector(ctxt, VCPU_SREG_ES);
2795 	tss->cs = get_segment_selector(ctxt, VCPU_SREG_CS);
2796 	tss->ss = get_segment_selector(ctxt, VCPU_SREG_SS);
2797 	tss->ds = get_segment_selector(ctxt, VCPU_SREG_DS);
2798 	tss->fs = get_segment_selector(ctxt, VCPU_SREG_FS);
2799 	tss->gs = get_segment_selector(ctxt, VCPU_SREG_GS);
2803 				 struct tss_segment_32 *tss)
2808 	if (ctxt->ops->set_cr(ctxt, 3, tss->cr3))
2810 	ctxt->_eip = tss->eip;
2811 	ctxt->eflags = tss->eflags | 2;
2814 	*reg_write(ctxt, VCPU_REGS_RAX) = tss->eax;
2815 	*reg_write(ctxt, VCPU_REGS_RCX) = tss->ecx;
2816 	*reg_write(ctxt, VCPU_REGS_RDX) = tss->edx;
2817 	*reg_write(ctxt, VCPU_REGS_RBX) = tss->ebx;
2818 	*reg_write(ctxt, VCPU_REGS_RSP) = tss->esp;
2819 	*reg_write(ctxt, VCPU_REGS_RBP) = tss->ebp;
2820 	*reg_write(ctxt, VCPU_REGS_RSI) = tss->esi;
2821 	*reg_write(ctxt, VCPU_REGS_RDI) = tss->edi;
2828 	set_segment_selector(ctxt, tss->ldt_selector, VCPU_SREG_LDTR);
2829 	set_segment_selector(ctxt, tss->es, VCPU_SREG_ES);
2830 	set_segment_selector(ctxt, tss->cs, VCPU_SREG_CS);
2831 	set_segment_selector(ctxt, tss->ss, VCPU_SREG_SS);
2832 	set_segment_selector(ctxt, tss->ds, VCPU_SREG_DS);
2833 	set_segment_selector(ctxt, tss->fs, VCPU_SREG_FS);
2834 	set_segment_selector(ctxt, tss->gs, VCPU_SREG_GS);
2846 		cpl = tss->cs & 3;
2853 	ret = __load_segment_descriptor(ctxt, tss->ldt_selector, VCPU_SREG_LDTR,
2857 	ret = __load_segment_descriptor(ctxt, tss->es, VCPU_SREG_ES, cpl,
2861 	ret = __load_segment_descriptor(ctxt, tss->cs, VCPU_SREG_CS, cpl,
2865 	ret = __load_segment_descriptor(ctxt, tss->ss, VCPU_SREG_SS, cpl,
2869 	ret = __load_segment_descriptor(ctxt, tss->ds, VCPU_SREG_DS, cpl,
2873 	ret = __load_segment_descriptor(ctxt, tss->fs, VCPU_SREG_FS, cpl,
2877 	ret = __load_segment_descriptor(ctxt, tss->gs, VCPU_SREG_GS, cpl,
2943 	/* FIXME: check that next_tss_desc is tss */