Nicholas Piggin <npig...@gmail.com> writes: > diff --git a/arch/powerpc/include/asm/ppc-opcode.h > b/arch/powerpc/include/asm/ppc-opcode.h > index 2a39c716c343..b2bdc4de1292 100644 > --- a/arch/powerpc/include/asm/ppc-opcode.h > +++ b/arch/powerpc/include/asm/ppc-opcode.h > @@ -257,6 +257,7 @@ > #define PPC_INST_MFVSRD 0x7c000066 > #define PPC_INST_MTVSRD 0x7c000166 > #define PPC_INST_SC 0x44000002 > +#define PPC_INST_SCV 0x44000001 ... > @@ -411,6 +412,7 @@ ... > +#define __PPC_LEV(l) (((l) & 0x7f) << 5)
These conflicted and didn't seem to be used so I dropped them. > diff --git a/arch/powerpc/lib/sstep.c b/arch/powerpc/lib/sstep.c > index 5abe98216dc2..161bfccbc309 100644 > --- a/arch/powerpc/lib/sstep.c > +++ b/arch/powerpc/lib/sstep.c > @@ -3378,6 +3382,16 @@ int emulate_step(struct pt_regs *regs, struct ppc_inst > instr) > regs->msr = MSR_KERNEL; > return 1; > > + case SYSCALL_VECTORED_0: /* scv 0 */ > + regs->gpr[9] = regs->gpr[13]; > + regs->gpr[10] = MSR_KERNEL; > + regs->gpr[11] = regs->nip + 4; > + regs->gpr[12] = regs->msr & MSR_MASK; > + regs->gpr[13] = (unsigned long) get_paca(); > + regs->nip = (unsigned long) &system_call_vectored_emulate; > + regs->msr = MSR_KERNEL; > + return 1; > + This broke the ppc64e build: ld: arch/powerpc/lib/sstep.o:(.toc+0x0): undefined reference to `system_call_vectored_emulate' make[1]: *** [/home/michael/linux/Makefile:1139: vmlinux] Error 1 I wrapped it in #ifdef CONFIG_PPC64_BOOK3S. cheers
