Commit 3980e302 authored by Jan Kiszka's avatar Jan Kiszka Committed by Marcelo Tosatti
Browse files

kvm: x86: Remove obsolete SS.RPL/DPL aligment 



This seems to date back to the days KVM didn't support real mode. The
check is no longer needed and, even worse, is corrupting the guest state
in case SS.RPL != DPL.

Signed-off-by: default avatarJan Kiszka <jan.kiszka@siemens.com>
Signed-off-by: default avatarAvi Kivity <avi@redhat.com>
parent acaa7550

target-i386/kvm.c

+0 −7
Original line number Diff line number Diff line
@@ -780,13 +780,6 @@ static int kvm_put_sregs(CPUState *env) 
	    set_seg(&sregs.fs, &env->segs[R_FS]);

	    set_seg(&sregs.gs, &env->segs[R_GS]);

	    set_seg(&sregs.ss, &env->segs[R_SS]);



	    if (env->cr[0] & CR0_PE_MASK) {

		/* force ss cpl to cs cpl */

		sregs.ss.selector = (sregs.ss.selector & ~3) |

			(sregs.cs.selector & 3);

		sregs.ss.dpl = sregs.ss.selector & 3;

	    }

    }



    set_seg(&sregs.tr, &env->tr);