blob: ab615ea30446ed7f646175f95960e2f173386b54 [file] [log] [blame]
; Copyright (c) 2017-2019, Intel Corporation
;
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; modification, are permitted provided that the following conditions are met:
;
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; this list of conditions and the following disclaimer.
; * Redistributions in binary form must reproduce the above copyright notice,
; this list of conditions and the following disclaimer in the documentation
; and/or other materials provided with the distribution.
; * Neither the name of Intel Corporation nor the names of its contributors
; may be used to endorse or promote products derived from this software
; without specific prior written permission.
;
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; APL12: Intel(R) PT OVF May Be Followed By An Unexpected FUP Packet.
;
; Certain Intel PT (Processor Trace) packets including FUPs (Flow
; Update Packets), should be issued only between TIP.PGE (Target IP
; Packet - Packet Generaton Enable) and TIP.PGD (Target IP Packet -
; Packet Generation Disable) packets. When outside a TIP.PGE/TIP.PGD
; pair, as a result of IA32_RTIT_STATUS.FilterEn[0] (MSR 571H) being
; cleared, an OVF (Overflow) packet may be unexpectedly followed by a
; FUP.
;
; cpu 6/92
; cpu 6/95
;
; Variant: Extra FUP followed by PSB+.
;
org 0x1000
bits 64
; @pt p0: psb()
; @pt p1: mode.exec(64bit)
; @pt p2: fup(3: %l0)
; @pt p3: psbend()
l0: hlt
; @pt p4: ovf()
; @pt p5: fup(3: %l1)
l1: hlt
; @pt p6: psb()
; @pt p7: mode.exec(64bit)
; @pt p8: psbend()
; @pt p9: tip.pge(3: %l2)
l2: nop
; @pt p10: fup(1: %l3)
; @pt p11: tip.pgd(0: %l3)
l3: hlt
; @pt .exp(ptdump)
;%0p0 psb
;%0p1 mode.exec cs.l
;%0p2 fup 3: %?l0
;%0p3 psbend
;%0p4 ovf
;%0p5 fup 3: %?l1
;%0p6 psb
;%0p7 mode.exec cs.l
;%0p8 psbend
;%0p9 tip.pge 3: %?l2
;%0p10 fup 1: %?l3.2
;%0p11 tip.pgd 0: %?l3.0
; @pt .exp(ptxed)
;[overflow]
;[enabled]
;%0l2
;[disabled]