On Fri, Apr 09, 2021 at 12:19:15PM -0300, Bruno Larsen (billionai) wrote: > This file basically adds all stubs required to build the project > with disable-tcg. most of these are not going to remain stubs by the > end, but this part is where it got complicated, and I wanted to get > an RFC ASAP. Most of these have to do with mmu emulation, so they'll > probably be replaced by a KVM implementation in the final product, > but I'm not sure which ones have to be replace, which can remain > stubs, and which should not be called at all. Input in general is > very much welcome. > > Signed-off-by: Bruno Larsen (billionai) <bruno.lar...@eldorado.org.br> > --- > target/ppc/tcg-stub.c | 139 ++++++++++++++++++++++++++++++++++++++++++ > 1 file changed, 139 insertions(+) > create mode 100644 target/ppc/tcg-stub.c > > diff --git a/target/ppc/tcg-stub.c b/target/ppc/tcg-stub.c > new file mode 100644 > index 0000000000..5dc8cf8911 > --- /dev/null > +++ b/target/ppc/tcg-stub.c > @@ -0,0 +1,139 @@ > +#include "qemu/osdep.h" > +#include "cpu.h" > +#include "mmu-hash64.h" > + > +/* STUFF FOR FIRST LINKER ERROR */ > +/* This stuff happens in target/ppc files */ > + > +#if !defined(CONFIG_USER_ONLY) > + > +void ppc_store_sdr1(CPUPPCState *env, target_ulong value) {
In general stubbing ppc_store_*() functions doesn't look seem like a good idea. At the very least the KVM code will need to update the register in env so that it gets synced with KVM later. I think you're going to be better off moving those ppc_store_*() functions used from KVM code into somewhere common, then #ifdefing to remove any TCG specific operations from them (or else providing KVM stubs for the TCG things they call). > + /* stub to make things compile */ > + return; > +} > + > +void ppc_store_ptcr(CPUPPCState *env, target_ulong value) { > + /* stub to make things compile */ > + return; > +} > + > +#endif /* !defined(CONFIG_USER_ONLY) */ > +void ppc_store_msr(CPUPPCState *env, target_ulong value) { > + /* stub to make things compile */ > + return; > +} > + > +void dump_mmu(CPUPPCState *env){ > + /* stub to make things compile */ > + return; > +} > + > +void store_fpscr(CPUPPCState *env, uint64_t arg, uint32_t mask) { > + /* stub to make things compile */ > + return; > +} > + > +void ppc_cpu_do_interrupt(CPUState *cpu) { > + /* stub to make things compile */ > + return; > +} > + > +/* STUFF FOR SECOND LINKER ERROR*/ > +/* these errors happen mostly in hw/ppc */ > + > +#ifdef TARGET_PPC64 > +int ppc_store_slb(PowerPCCPU *cpu, target_ulong slot, > + target_ulong esid, target_ulong vsid) { > + /* rquired by kvm.c and machine.c */ > + return 0; > +} > + > +void ppc_hash64_filter_pagesizes(PowerPCCPU *cpu, > + bool (*cb)(void *, uint32_t, uint32_t), > + void *opaque) { > + /* required by spapr_caps.c */ > + return; > +} > + > +void ppc_store_lpcr(PowerPCCPU *cpu, target_ulong val) { > + /* required by spapr_* */ > + return; > +} > + > +const ppc_hash_pte64_t *ppc_hash64_map_hptes(PowerPCCPU *cpu, > + hwaddr ptex, int n) { > + /* used by spapr_hcall a bunch */ > + return NULL; > +} > + > +void ppc_hash64_unmap_hptes(PowerPCCPU *cpu, const ppc_hash_pte64_t *hptes, > + hwaddr ptex, int n) { > + /* used a bunch by spapr_hcall */ > + return; > +} > + > +void ppc_hash64_tlb_flush_hpte(PowerPCCPU *cpu, > + target_ulong pte_index, > + target_ulong pte0, target_ulong pte1){ > + return; > +} > + > +unsigned ppc_hash64_hpte_page_shift_noslb(PowerPCCPU *cpu, > + uint64_t pte0, uint64_t pte1) { > + return 0; > +} > +#endif > + > +void ppc_cpu_do_fwnmi_machine_check(CPUState *cs, target_ulong vector) { > + /* required by spapr_events spapr_mce_dispatch_elog */ > + return; > +} > +#ifndef CONFIG_USER_ONLY > +void ppc_cpu_do_system_reset(CPUState *cs){ > + /* required by pnv and spapr */ > + return; > +} > +#endif > + > +bool ppc64_v3_get_pate(PowerPCCPU *cpu, target_ulong lpid, > + ppc_v3_pate_t *entry); > + > +bool ppc64_v3_get_pate(PowerPCCPU *cpu, target_ulong lpid, > + ppc_v3_pate_t *entry) { > + /* used by spapr_hcall: ppc_hash64_hpt_mask */ > + return true; > +} > + > +/* THIRD BATCH OF ERRORS, AFTER MOVING STUFF FROM TRANSLATE TO CPU.C */ > + > +/* they are all coming from cpu.c, probably */ > + > +void create_ppc_opcodes(PowerPCCPU *cpu, Error **errp) { > + return; > +} > + > +void init_ppc_proc(PowerPCCPU *cpu) { > + return; > +} > + > +void destroy_ppc_opcodes(PowerPCCPU *cpu) { > + return; > +} > + > +void ppc_tlb_invalidate_all(CPUPPCState *env) { > + return; > +} > + > +void ppc_cpu_dump_state(CPUState *cpu, FILE *f, int flags) { > + return; > +} > + > +void ppc_cpu_dump_statistics(CPUState *cpu, int flags) { > + return; > +} > + > +#include "exec/hwaddr.h" > + > +hwaddr ppc_cpu_get_phys_page_debug(CPUState *cpu, vaddr addr) { > + return 0; > +} -- David Gibson | I'll have my music baroque, and my code david AT gibson.dropbear.id.au | minimalist, thank you. NOT _the_ _other_ | _way_ _around_! http://www.ozlabs.org/~dgibson
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