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Commit 77e675ad authored by Alexander Graf's avatar Alexander Graf Committed by Avi Kivity
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KVM: PPC: Read out syscall instruction on trap 



We have a few traps where we cache the instruction that cause the trap
for analysis later on. Since we now need to be able to distinguish
between SC 0 and SC 1 system calls and the only way to find out which
is which is by looking at the instruction, we also read out the instruction
causing the system call.

Signed-off-by: default avatarAlexander Graf <agraf@suse.de>
parent 04fcc11b

arch/powerpc/kvm/book3s_segment.S

+5 −0
Original line number Diff line number Diff line
@@ -213,11 +213,16 @@ END_FTR_SECTION_IFSET(CPU_FTR_HVMODE) 
	beq	ld_last_inst

	cmpwi	r12, BOOK3S_INTERRUPT_PROGRAM

	beq	ld_last_inst

	cmpwi	r12, BOOK3S_INTERRUPT_SYSCALL

	beq	ld_last_prev_inst

	cmpwi	r12, BOOK3S_INTERRUPT_ALIGNMENT

	beq-	ld_last_inst



	b	no_ld_last_inst



ld_last_prev_inst:

	addi	r3, r3, -4



ld_last_inst:

	/* Save off the guest instruction we're at */