1 files changed, 8 insertions, 13 deletions

diff --git a/arch/i386/kernel/kprobes.c b/arch/i386/kernel/kprobes.c
index 043f5292e70a..38806f427849 100644
--- a/arch/i386/kernel/kprobes.c
+++ b/arch/i386/kernel/kprobes.c
@@ -242,10 +242,6 @@ static int __kprobes kprobe_handler(struct pt_regs *regs)
                         kcb->kprobe_status = KPROBE_REENTER;
                         return 1;
                 } else {
-                        if (regs->eflags & VM_MASK) {
-                        /* We are in virtual-8086 mode. Return 0 */
-                                goto no_kprobe;
-                        }
                         if (*addr != BREAKPOINT_INSTRUCTION) {
                         /* The breakpoint instruction was removed by
                          * another cpu right after we hit, no further
@@ -265,11 +261,6 @@ static int __kprobes kprobe_handler(struct pt_regs *regs)
 
         p = get_kprobe(addr);
         if (!p) {
-                if (regs->eflags & VM_MASK) {
-                        /* We are in virtual-8086 mode. Return 0 */
-                        goto no_kprobe;
-                }
-
                 if (*addr != BREAKPOINT_INSTRUCTION) {
                         /*
                          * The breakpoint instruction was removed right
@@ -452,10 +443,11 @@ static void __kprobes resume_execution(struct kprobe *p,
                 *tos &= ~(TF_MASK | IF_MASK);
                 *tos |= kcb->kprobe_old_eflags;
                 break;
-        case 0xc3:              /* ret/lret */
-        case 0xcb:
-        case 0xc2:
+        case 0xc2:              /* iret/ret/lret */
+        case 0xc3:
         case 0xca:
+        case 0xcb:
+        case 0xcf:
         case 0xea:              /* jmp absolute -- eip is correct */
                 /* eip is already adjusted, no more changes required */
                 p->ainsn.boostable = 1;
@@ -463,10 +455,13 @@ static void __kprobes resume_execution(struct kprobe *p,
         case 0xe8:              /* call relative - Fix return addr */
                 *tos = orig_eip + (*tos - copy_eip);
                 break;
+        case 0x9a:              /* call absolute -- same as call absolute, indirect */
+                *tos = orig_eip + (*tos - copy_eip);
+                goto no_change;
         case 0xff:
                 if ((p->ainsn.insn[1] & 0x30) == 0x10) {
-                        /* call absolute, indirect */
                         /*
+                         * call absolute, indirect
                          * Fix return addr; eip is correct.
                          * But this is not boostable
                          */