-----BEGIN PGP SIGNATURE----- Version: GnuPG v2 iQExBAABCAAbBQJYF07FFBxwYm9uemluaUByZWRoYXQuY29tAAoJEL/70l94x66D ppoIAI4AxWocso5WIUH6uEHjOAxw9ZNhZ92nF8VtcbvGtN/eh8Qk4jfRX+W/Jl0q D13Rm3m8ynNHqh8YFs+O6i/WSgxHGxKwb75mNr36HDnYnMFluTvRQkvYJUXRyRuL CVtNgy8+q8FbbWo+NiJ5I7gfk2Si4BQfZN0uCLqGuCwqvvA/spN13xUcpeBXEKhL TeDGZBT/atDnT2bRcve8E8g5/0RKjTL9EB0jwfJjHocT5bs+toPe6js9VnZDRNWN ZldcONgEHj3zAj9j7hTkVWFTGPSCx/tt6y6JeORq1oxk0mCCswEk0U9A3hLzLjc/ 94XHsLaEoZ7HNAKtkLc07NYhkQM= =+6Sj -----END PGP SIGNATURE----- Merge remote-tracking branch 'remotes/bonzini/tags/for-upstream-mttcg' into staging Base patches for MTTCG enablement. # gpg: Signature made Mon 31 Oct 2016 14:01:41 GMT # gpg: using RSA key 0xBFFBD25F78C7AE83 # gpg: Good signature from "Paolo Bonzini <bonzini@gnu.org>" # gpg: aka "Paolo Bonzini <pbonzini@redhat.com>" # Primary key fingerprint: 46F5 9FBD 57D6 12E7 BFD4 E2F7 7E15 100C CD36 69B1 # Subkey fingerprint: F133 3857 4B66 2389 866C 7682 BFFB D25F 78C7 AE83 * remotes/bonzini/tags/for-upstream-mttcg: tcg: move locking for tb_invalidate_phys_page_range up *_run_on_cpu: introduce run_on_cpu_data type cpus: re-factor out handle_icount_deadline tcg: cpus rm tcg_exec_all() tcg: move tcg_exec_all and helpers above thread fn target-arm/arm-powerctl: wake up sleeping CPUs tcg: protect translation related stuff with tb_lock. translate-all: Add assert_(memory|tb)_lock annotations linux-user/elfload: ensure mmap_lock() held while setting up tcg: comment on which functions have to be called with tb_lock held cpu-exec: include cpu_index in CPU_LOG_EXEC messages translate-all: add DEBUG_LOCKING asserts translate_all: DEBUG_FLUSH -> DEBUG_TB_FLUSH cpus: make all_vcpus_paused() return bool Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
1133 lines
32 KiB
C
1133 lines
32 KiB
C
#include "qemu/osdep.h"
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#include "qapi/error.h"
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#include "sysemu/sysemu.h"
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#include "qemu/log.h"
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#include "cpu.h"
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#include "exec/exec-all.h"
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#include "helper_regs.h"
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#include "hw/ppc/spapr.h"
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#include "mmu-hash64.h"
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#include "cpu-models.h"
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#include "trace.h"
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#include "sysemu/kvm.h"
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#include "kvm_ppc.h"
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#include "hw/ppc/spapr_ovec.h"
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struct SPRSyncState {
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int spr;
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target_ulong value;
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target_ulong mask;
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};
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static void do_spr_sync(CPUState *cs, run_on_cpu_data arg)
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{
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struct SPRSyncState *s = arg.host_ptr;
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PowerPCCPU *cpu = POWERPC_CPU(cs);
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CPUPPCState *env = &cpu->env;
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cpu_synchronize_state(cs);
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env->spr[s->spr] &= ~s->mask;
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env->spr[s->spr] |= s->value;
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}
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static void set_spr(CPUState *cs, int spr, target_ulong value,
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target_ulong mask)
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{
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struct SPRSyncState s = {
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.spr = spr,
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.value = value,
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.mask = mask
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};
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run_on_cpu(cs, do_spr_sync, RUN_ON_CPU_HOST_PTR(&s));
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}
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static bool has_spr(PowerPCCPU *cpu, int spr)
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{
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/* We can test whether the SPR is defined by checking for a valid name */
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return cpu->env.spr_cb[spr].name != NULL;
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}
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static inline bool valid_pte_index(CPUPPCState *env, target_ulong pte_index)
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{
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/*
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* hash value/pteg group index is normalized by htab_mask
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*/
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if (((pte_index & ~7ULL) / HPTES_PER_GROUP) & ~env->htab_mask) {
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return false;
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}
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return true;
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}
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static bool is_ram_address(sPAPRMachineState *spapr, hwaddr addr)
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{
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MachineState *machine = MACHINE(spapr);
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MemoryHotplugState *hpms = &spapr->hotplug_memory;
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if (addr < machine->ram_size) {
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return true;
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}
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if ((addr >= hpms->base)
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&& ((addr - hpms->base) < memory_region_size(&hpms->mr))) {
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return true;
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}
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return false;
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}
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static target_ulong h_enter(PowerPCCPU *cpu, sPAPRMachineState *spapr,
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target_ulong opcode, target_ulong *args)
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{
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CPUPPCState *env = &cpu->env;
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target_ulong flags = args[0];
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target_ulong pte_index = args[1];
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target_ulong pteh = args[2];
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target_ulong ptel = args[3];
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unsigned apshift;
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target_ulong raddr;
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target_ulong index;
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uint64_t token;
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apshift = ppc_hash64_hpte_page_shift_noslb(cpu, pteh, ptel);
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if (!apshift) {
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/* Bad page size encoding */
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return H_PARAMETER;
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}
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raddr = (ptel & HPTE64_R_RPN) & ~((1ULL << apshift) - 1);
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if (is_ram_address(spapr, raddr)) {
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/* Regular RAM - should have WIMG=0010 */
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if ((ptel & HPTE64_R_WIMG) != HPTE64_R_M) {
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return H_PARAMETER;
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}
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} else {
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target_ulong wimg_flags;
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/* Looks like an IO address */
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/* FIXME: What WIMG combinations could be sensible for IO?
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* For now we allow WIMG=010x, but are there others? */
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/* FIXME: Should we check against registered IO addresses? */
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wimg_flags = (ptel & (HPTE64_R_W | HPTE64_R_I | HPTE64_R_M));
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if (wimg_flags != HPTE64_R_I &&
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wimg_flags != (HPTE64_R_I | HPTE64_R_M)) {
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return H_PARAMETER;
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}
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}
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pteh &= ~0x60ULL;
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if (!valid_pte_index(env, pte_index)) {
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return H_PARAMETER;
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}
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index = 0;
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if (likely((flags & H_EXACT) == 0)) {
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pte_index &= ~7ULL;
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token = ppc_hash64_start_access(cpu, pte_index);
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for (; index < 8; index++) {
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if (!(ppc_hash64_load_hpte0(cpu, token, index) & HPTE64_V_VALID)) {
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break;
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}
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}
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ppc_hash64_stop_access(cpu, token);
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if (index == 8) {
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return H_PTEG_FULL;
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}
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} else {
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token = ppc_hash64_start_access(cpu, pte_index);
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if (ppc_hash64_load_hpte0(cpu, token, 0) & HPTE64_V_VALID) {
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ppc_hash64_stop_access(cpu, token);
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return H_PTEG_FULL;
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}
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ppc_hash64_stop_access(cpu, token);
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}
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ppc_hash64_store_hpte(cpu, pte_index + index,
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pteh | HPTE64_V_HPTE_DIRTY, ptel);
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args[0] = pte_index + index;
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return H_SUCCESS;
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}
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typedef enum {
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REMOVE_SUCCESS = 0,
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REMOVE_NOT_FOUND = 1,
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REMOVE_PARM = 2,
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REMOVE_HW = 3,
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} RemoveResult;
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static RemoveResult remove_hpte(PowerPCCPU *cpu, target_ulong ptex,
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target_ulong avpn,
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target_ulong flags,
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target_ulong *vp, target_ulong *rp)
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{
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CPUPPCState *env = &cpu->env;
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uint64_t token;
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target_ulong v, r;
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if (!valid_pte_index(env, ptex)) {
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return REMOVE_PARM;
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}
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token = ppc_hash64_start_access(cpu, ptex);
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v = ppc_hash64_load_hpte0(cpu, token, 0);
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r = ppc_hash64_load_hpte1(cpu, token, 0);
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ppc_hash64_stop_access(cpu, token);
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if ((v & HPTE64_V_VALID) == 0 ||
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((flags & H_AVPN) && (v & ~0x7fULL) != avpn) ||
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((flags & H_ANDCOND) && (v & avpn) != 0)) {
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return REMOVE_NOT_FOUND;
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}
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*vp = v;
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*rp = r;
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ppc_hash64_store_hpte(cpu, ptex, HPTE64_V_HPTE_DIRTY, 0);
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ppc_hash64_tlb_flush_hpte(cpu, ptex, v, r);
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return REMOVE_SUCCESS;
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}
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static target_ulong h_remove(PowerPCCPU *cpu, sPAPRMachineState *spapr,
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target_ulong opcode, target_ulong *args)
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{
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CPUPPCState *env = &cpu->env;
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target_ulong flags = args[0];
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target_ulong pte_index = args[1];
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target_ulong avpn = args[2];
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RemoveResult ret;
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ret = remove_hpte(cpu, pte_index, avpn, flags,
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&args[0], &args[1]);
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switch (ret) {
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case REMOVE_SUCCESS:
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check_tlb_flush(env, true);
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return H_SUCCESS;
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case REMOVE_NOT_FOUND:
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return H_NOT_FOUND;
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case REMOVE_PARM:
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return H_PARAMETER;
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case REMOVE_HW:
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return H_HARDWARE;
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}
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g_assert_not_reached();
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}
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#define H_BULK_REMOVE_TYPE 0xc000000000000000ULL
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#define H_BULK_REMOVE_REQUEST 0x4000000000000000ULL
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#define H_BULK_REMOVE_RESPONSE 0x8000000000000000ULL
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#define H_BULK_REMOVE_END 0xc000000000000000ULL
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#define H_BULK_REMOVE_CODE 0x3000000000000000ULL
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#define H_BULK_REMOVE_SUCCESS 0x0000000000000000ULL
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#define H_BULK_REMOVE_NOT_FOUND 0x1000000000000000ULL
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#define H_BULK_REMOVE_PARM 0x2000000000000000ULL
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#define H_BULK_REMOVE_HW 0x3000000000000000ULL
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#define H_BULK_REMOVE_RC 0x0c00000000000000ULL
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#define H_BULK_REMOVE_FLAGS 0x0300000000000000ULL
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#define H_BULK_REMOVE_ABSOLUTE 0x0000000000000000ULL
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#define H_BULK_REMOVE_ANDCOND 0x0100000000000000ULL
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#define H_BULK_REMOVE_AVPN 0x0200000000000000ULL
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#define H_BULK_REMOVE_PTEX 0x00ffffffffffffffULL
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#define H_BULK_REMOVE_MAX_BATCH 4
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static target_ulong h_bulk_remove(PowerPCCPU *cpu, sPAPRMachineState *spapr,
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target_ulong opcode, target_ulong *args)
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{
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CPUPPCState *env = &cpu->env;
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int i;
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target_ulong rc = H_SUCCESS;
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for (i = 0; i < H_BULK_REMOVE_MAX_BATCH; i++) {
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target_ulong *tsh = &args[i*2];
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target_ulong tsl = args[i*2 + 1];
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target_ulong v, r, ret;
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if ((*tsh & H_BULK_REMOVE_TYPE) == H_BULK_REMOVE_END) {
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break;
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} else if ((*tsh & H_BULK_REMOVE_TYPE) != H_BULK_REMOVE_REQUEST) {
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return H_PARAMETER;
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}
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*tsh &= H_BULK_REMOVE_PTEX | H_BULK_REMOVE_FLAGS;
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*tsh |= H_BULK_REMOVE_RESPONSE;
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if ((*tsh & H_BULK_REMOVE_ANDCOND) && (*tsh & H_BULK_REMOVE_AVPN)) {
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*tsh |= H_BULK_REMOVE_PARM;
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return H_PARAMETER;
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}
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ret = remove_hpte(cpu, *tsh & H_BULK_REMOVE_PTEX, tsl,
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(*tsh & H_BULK_REMOVE_FLAGS) >> 26,
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&v, &r);
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*tsh |= ret << 60;
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switch (ret) {
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case REMOVE_SUCCESS:
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*tsh |= (r & (HPTE64_R_C | HPTE64_R_R)) << 43;
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break;
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case REMOVE_PARM:
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rc = H_PARAMETER;
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goto exit;
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case REMOVE_HW:
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rc = H_HARDWARE;
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goto exit;
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}
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}
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exit:
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check_tlb_flush(env, true);
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return rc;
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}
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static target_ulong h_protect(PowerPCCPU *cpu, sPAPRMachineState *spapr,
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target_ulong opcode, target_ulong *args)
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{
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CPUPPCState *env = &cpu->env;
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target_ulong flags = args[0];
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target_ulong pte_index = args[1];
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target_ulong avpn = args[2];
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uint64_t token;
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target_ulong v, r;
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if (!valid_pte_index(env, pte_index)) {
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return H_PARAMETER;
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}
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token = ppc_hash64_start_access(cpu, pte_index);
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v = ppc_hash64_load_hpte0(cpu, token, 0);
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r = ppc_hash64_load_hpte1(cpu, token, 0);
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ppc_hash64_stop_access(cpu, token);
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if ((v & HPTE64_V_VALID) == 0 ||
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((flags & H_AVPN) && (v & ~0x7fULL) != avpn)) {
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return H_NOT_FOUND;
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}
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r &= ~(HPTE64_R_PP0 | HPTE64_R_PP | HPTE64_R_N |
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HPTE64_R_KEY_HI | HPTE64_R_KEY_LO);
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r |= (flags << 55) & HPTE64_R_PP0;
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r |= (flags << 48) & HPTE64_R_KEY_HI;
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r |= flags & (HPTE64_R_PP | HPTE64_R_N | HPTE64_R_KEY_LO);
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ppc_hash64_store_hpte(cpu, pte_index,
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(v & ~HPTE64_V_VALID) | HPTE64_V_HPTE_DIRTY, 0);
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ppc_hash64_tlb_flush_hpte(cpu, pte_index, v, r);
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/* Flush the tlb */
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check_tlb_flush(env, true);
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/* Don't need a memory barrier, due to qemu's global lock */
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ppc_hash64_store_hpte(cpu, pte_index, v | HPTE64_V_HPTE_DIRTY, r);
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return H_SUCCESS;
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}
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static target_ulong h_read(PowerPCCPU *cpu, sPAPRMachineState *spapr,
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target_ulong opcode, target_ulong *args)
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{
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CPUPPCState *env = &cpu->env;
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target_ulong flags = args[0];
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target_ulong pte_index = args[1];
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uint8_t *hpte;
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int i, ridx, n_entries = 1;
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if (!valid_pte_index(env, pte_index)) {
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return H_PARAMETER;
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}
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if (flags & H_READ_4) {
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/* Clear the two low order bits */
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pte_index &= ~(3ULL);
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n_entries = 4;
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}
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hpte = env->external_htab + (pte_index * HASH_PTE_SIZE_64);
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for (i = 0, ridx = 0; i < n_entries; i++) {
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args[ridx++] = ldq_p(hpte);
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args[ridx++] = ldq_p(hpte + (HASH_PTE_SIZE_64/2));
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hpte += HASH_PTE_SIZE_64;
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}
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return H_SUCCESS;
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}
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static target_ulong h_set_sprg0(PowerPCCPU *cpu, sPAPRMachineState *spapr,
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target_ulong opcode, target_ulong *args)
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{
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cpu_synchronize_state(CPU(cpu));
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cpu->env.spr[SPR_SPRG0] = args[0];
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return H_SUCCESS;
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}
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static target_ulong h_set_dabr(PowerPCCPU *cpu, sPAPRMachineState *spapr,
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target_ulong opcode, target_ulong *args)
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{
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if (!has_spr(cpu, SPR_DABR)) {
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return H_HARDWARE; /* DABR register not available */
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}
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cpu_synchronize_state(CPU(cpu));
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if (has_spr(cpu, SPR_DABRX)) {
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cpu->env.spr[SPR_DABRX] = 0x3; /* Use Problem and Privileged state */
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} else if (!(args[0] & 0x4)) { /* Breakpoint Translation set? */
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return H_RESERVED_DABR;
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}
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cpu->env.spr[SPR_DABR] = args[0];
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return H_SUCCESS;
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}
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static target_ulong h_set_xdabr(PowerPCCPU *cpu, sPAPRMachineState *spapr,
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target_ulong opcode, target_ulong *args)
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{
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target_ulong dabrx = args[1];
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if (!has_spr(cpu, SPR_DABR) || !has_spr(cpu, SPR_DABRX)) {
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return H_HARDWARE;
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}
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if ((dabrx & ~0xfULL) != 0 || (dabrx & H_DABRX_HYPERVISOR) != 0
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|| (dabrx & (H_DABRX_KERNEL | H_DABRX_USER)) == 0) {
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return H_PARAMETER;
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}
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|
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cpu_synchronize_state(CPU(cpu));
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cpu->env.spr[SPR_DABRX] = dabrx;
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cpu->env.spr[SPR_DABR] = args[0];
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return H_SUCCESS;
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}
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|
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static target_ulong h_page_init(PowerPCCPU *cpu, sPAPRMachineState *spapr,
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target_ulong opcode, target_ulong *args)
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{
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target_ulong flags = args[0];
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hwaddr dst = args[1];
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hwaddr src = args[2];
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hwaddr len = TARGET_PAGE_SIZE;
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uint8_t *pdst, *psrc;
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target_long ret = H_SUCCESS;
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|
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if (flags & ~(H_ICACHE_SYNCHRONIZE | H_ICACHE_INVALIDATE
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| H_COPY_PAGE | H_ZERO_PAGE)) {
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qemu_log_mask(LOG_UNIMP, "h_page_init: Bad flags (" TARGET_FMT_lx "\n",
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flags);
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return H_PARAMETER;
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}
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|
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/* Map-in destination */
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if (!is_ram_address(spapr, dst) || (dst & ~TARGET_PAGE_MASK) != 0) {
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return H_PARAMETER;
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}
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pdst = cpu_physical_memory_map(dst, &len, 1);
|
|
if (!pdst || len != TARGET_PAGE_SIZE) {
|
|
return H_PARAMETER;
|
|
}
|
|
|
|
if (flags & H_COPY_PAGE) {
|
|
/* Map-in source, copy to destination, and unmap source again */
|
|
if (!is_ram_address(spapr, src) || (src & ~TARGET_PAGE_MASK) != 0) {
|
|
ret = H_PARAMETER;
|
|
goto unmap_out;
|
|
}
|
|
psrc = cpu_physical_memory_map(src, &len, 0);
|
|
if (!psrc || len != TARGET_PAGE_SIZE) {
|
|
ret = H_PARAMETER;
|
|
goto unmap_out;
|
|
}
|
|
memcpy(pdst, psrc, len);
|
|
cpu_physical_memory_unmap(psrc, len, 0, len);
|
|
} else if (flags & H_ZERO_PAGE) {
|
|
memset(pdst, 0, len); /* Just clear the destination page */
|
|
}
|
|
|
|
if (kvm_enabled() && (flags & H_ICACHE_SYNCHRONIZE) != 0) {
|
|
kvmppc_dcbst_range(cpu, pdst, len);
|
|
}
|
|
if (flags & (H_ICACHE_SYNCHRONIZE | H_ICACHE_INVALIDATE)) {
|
|
if (kvm_enabled()) {
|
|
kvmppc_icbi_range(cpu, pdst, len);
|
|
} else {
|
|
tb_flush(CPU(cpu));
|
|
}
|
|
}
|
|
|
|
unmap_out:
|
|
cpu_physical_memory_unmap(pdst, TARGET_PAGE_SIZE, 1, len);
|
|
return ret;
|
|
}
|
|
|
|
#define FLAGS_REGISTER_VPA 0x0000200000000000ULL
|
|
#define FLAGS_REGISTER_DTL 0x0000400000000000ULL
|
|
#define FLAGS_REGISTER_SLBSHADOW 0x0000600000000000ULL
|
|
#define FLAGS_DEREGISTER_VPA 0x0000a00000000000ULL
|
|
#define FLAGS_DEREGISTER_DTL 0x0000c00000000000ULL
|
|
#define FLAGS_DEREGISTER_SLBSHADOW 0x0000e00000000000ULL
|
|
|
|
#define VPA_MIN_SIZE 640
|
|
#define VPA_SIZE_OFFSET 0x4
|
|
#define VPA_SHARED_PROC_OFFSET 0x9
|
|
#define VPA_SHARED_PROC_VAL 0x2
|
|
|
|
static target_ulong register_vpa(CPUPPCState *env, target_ulong vpa)
|
|
{
|
|
CPUState *cs = CPU(ppc_env_get_cpu(env));
|
|
uint16_t size;
|
|
uint8_t tmp;
|
|
|
|
if (vpa == 0) {
|
|
hcall_dprintf("Can't cope with registering a VPA at logical 0\n");
|
|
return H_HARDWARE;
|
|
}
|
|
|
|
if (vpa % env->dcache_line_size) {
|
|
return H_PARAMETER;
|
|
}
|
|
/* FIXME: bounds check the address */
|
|
|
|
size = lduw_be_phys(cs->as, vpa + 0x4);
|
|
|
|
if (size < VPA_MIN_SIZE) {
|
|
return H_PARAMETER;
|
|
}
|
|
|
|
/* VPA is not allowed to cross a page boundary */
|
|
if ((vpa / 4096) != ((vpa + size - 1) / 4096)) {
|
|
return H_PARAMETER;
|
|
}
|
|
|
|
env->vpa_addr = vpa;
|
|
|
|
tmp = ldub_phys(cs->as, env->vpa_addr + VPA_SHARED_PROC_OFFSET);
|
|
tmp |= VPA_SHARED_PROC_VAL;
|
|
stb_phys(cs->as, env->vpa_addr + VPA_SHARED_PROC_OFFSET, tmp);
|
|
|
|
return H_SUCCESS;
|
|
}
|
|
|
|
static target_ulong deregister_vpa(CPUPPCState *env, target_ulong vpa)
|
|
{
|
|
if (env->slb_shadow_addr) {
|
|
return H_RESOURCE;
|
|
}
|
|
|
|
if (env->dtl_addr) {
|
|
return H_RESOURCE;
|
|
}
|
|
|
|
env->vpa_addr = 0;
|
|
return H_SUCCESS;
|
|
}
|
|
|
|
static target_ulong register_slb_shadow(CPUPPCState *env, target_ulong addr)
|
|
{
|
|
CPUState *cs = CPU(ppc_env_get_cpu(env));
|
|
uint32_t size;
|
|
|
|
if (addr == 0) {
|
|
hcall_dprintf("Can't cope with SLB shadow at logical 0\n");
|
|
return H_HARDWARE;
|
|
}
|
|
|
|
size = ldl_be_phys(cs->as, addr + 0x4);
|
|
if (size < 0x8) {
|
|
return H_PARAMETER;
|
|
}
|
|
|
|
if ((addr / 4096) != ((addr + size - 1) / 4096)) {
|
|
return H_PARAMETER;
|
|
}
|
|
|
|
if (!env->vpa_addr) {
|
|
return H_RESOURCE;
|
|
}
|
|
|
|
env->slb_shadow_addr = addr;
|
|
env->slb_shadow_size = size;
|
|
|
|
return H_SUCCESS;
|
|
}
|
|
|
|
static target_ulong deregister_slb_shadow(CPUPPCState *env, target_ulong addr)
|
|
{
|
|
env->slb_shadow_addr = 0;
|
|
env->slb_shadow_size = 0;
|
|
return H_SUCCESS;
|
|
}
|
|
|
|
static target_ulong register_dtl(CPUPPCState *env, target_ulong addr)
|
|
{
|
|
CPUState *cs = CPU(ppc_env_get_cpu(env));
|
|
uint32_t size;
|
|
|
|
if (addr == 0) {
|
|
hcall_dprintf("Can't cope with DTL at logical 0\n");
|
|
return H_HARDWARE;
|
|
}
|
|
|
|
size = ldl_be_phys(cs->as, addr + 0x4);
|
|
|
|
if (size < 48) {
|
|
return H_PARAMETER;
|
|
}
|
|
|
|
if (!env->vpa_addr) {
|
|
return H_RESOURCE;
|
|
}
|
|
|
|
env->dtl_addr = addr;
|
|
env->dtl_size = size;
|
|
|
|
return H_SUCCESS;
|
|
}
|
|
|
|
static target_ulong deregister_dtl(CPUPPCState *env, target_ulong addr)
|
|
{
|
|
env->dtl_addr = 0;
|
|
env->dtl_size = 0;
|
|
|
|
return H_SUCCESS;
|
|
}
|
|
|
|
static target_ulong h_register_vpa(PowerPCCPU *cpu, sPAPRMachineState *spapr,
|
|
target_ulong opcode, target_ulong *args)
|
|
{
|
|
target_ulong flags = args[0];
|
|
target_ulong procno = args[1];
|
|
target_ulong vpa = args[2];
|
|
target_ulong ret = H_PARAMETER;
|
|
CPUPPCState *tenv;
|
|
PowerPCCPU *tcpu;
|
|
|
|
tcpu = ppc_get_vcpu_by_dt_id(procno);
|
|
if (!tcpu) {
|
|
return H_PARAMETER;
|
|
}
|
|
tenv = &tcpu->env;
|
|
|
|
switch (flags) {
|
|
case FLAGS_REGISTER_VPA:
|
|
ret = register_vpa(tenv, vpa);
|
|
break;
|
|
|
|
case FLAGS_DEREGISTER_VPA:
|
|
ret = deregister_vpa(tenv, vpa);
|
|
break;
|
|
|
|
case FLAGS_REGISTER_SLBSHADOW:
|
|
ret = register_slb_shadow(tenv, vpa);
|
|
break;
|
|
|
|
case FLAGS_DEREGISTER_SLBSHADOW:
|
|
ret = deregister_slb_shadow(tenv, vpa);
|
|
break;
|
|
|
|
case FLAGS_REGISTER_DTL:
|
|
ret = register_dtl(tenv, vpa);
|
|
break;
|
|
|
|
case FLAGS_DEREGISTER_DTL:
|
|
ret = deregister_dtl(tenv, vpa);
|
|
break;
|
|
}
|
|
|
|
return ret;
|
|
}
|
|
|
|
static target_ulong h_cede(PowerPCCPU *cpu, sPAPRMachineState *spapr,
|
|
target_ulong opcode, target_ulong *args)
|
|
{
|
|
CPUPPCState *env = &cpu->env;
|
|
CPUState *cs = CPU(cpu);
|
|
|
|
env->msr |= (1ULL << MSR_EE);
|
|
hreg_compute_hflags(env);
|
|
if (!cpu_has_work(cs)) {
|
|
cs->halted = 1;
|
|
cs->exception_index = EXCP_HLT;
|
|
cs->exit_request = 1;
|
|
}
|
|
return H_SUCCESS;
|
|
}
|
|
|
|
static target_ulong h_rtas(PowerPCCPU *cpu, sPAPRMachineState *spapr,
|
|
target_ulong opcode, target_ulong *args)
|
|
{
|
|
target_ulong rtas_r3 = args[0];
|
|
uint32_t token = rtas_ld(rtas_r3, 0);
|
|
uint32_t nargs = rtas_ld(rtas_r3, 1);
|
|
uint32_t nret = rtas_ld(rtas_r3, 2);
|
|
|
|
return spapr_rtas_call(cpu, spapr, token, nargs, rtas_r3 + 12,
|
|
nret, rtas_r3 + 12 + 4*nargs);
|
|
}
|
|
|
|
static target_ulong h_logical_load(PowerPCCPU *cpu, sPAPRMachineState *spapr,
|
|
target_ulong opcode, target_ulong *args)
|
|
{
|
|
CPUState *cs = CPU(cpu);
|
|
target_ulong size = args[0];
|
|
target_ulong addr = args[1];
|
|
|
|
switch (size) {
|
|
case 1:
|
|
args[0] = ldub_phys(cs->as, addr);
|
|
return H_SUCCESS;
|
|
case 2:
|
|
args[0] = lduw_phys(cs->as, addr);
|
|
return H_SUCCESS;
|
|
case 4:
|
|
args[0] = ldl_phys(cs->as, addr);
|
|
return H_SUCCESS;
|
|
case 8:
|
|
args[0] = ldq_phys(cs->as, addr);
|
|
return H_SUCCESS;
|
|
}
|
|
return H_PARAMETER;
|
|
}
|
|
|
|
static target_ulong h_logical_store(PowerPCCPU *cpu, sPAPRMachineState *spapr,
|
|
target_ulong opcode, target_ulong *args)
|
|
{
|
|
CPUState *cs = CPU(cpu);
|
|
|
|
target_ulong size = args[0];
|
|
target_ulong addr = args[1];
|
|
target_ulong val = args[2];
|
|
|
|
switch (size) {
|
|
case 1:
|
|
stb_phys(cs->as, addr, val);
|
|
return H_SUCCESS;
|
|
case 2:
|
|
stw_phys(cs->as, addr, val);
|
|
return H_SUCCESS;
|
|
case 4:
|
|
stl_phys(cs->as, addr, val);
|
|
return H_SUCCESS;
|
|
case 8:
|
|
stq_phys(cs->as, addr, val);
|
|
return H_SUCCESS;
|
|
}
|
|
return H_PARAMETER;
|
|
}
|
|
|
|
static target_ulong h_logical_memop(PowerPCCPU *cpu, sPAPRMachineState *spapr,
|
|
target_ulong opcode, target_ulong *args)
|
|
{
|
|
CPUState *cs = CPU(cpu);
|
|
|
|
target_ulong dst = args[0]; /* Destination address */
|
|
target_ulong src = args[1]; /* Source address */
|
|
target_ulong esize = args[2]; /* Element size (0=1,1=2,2=4,3=8) */
|
|
target_ulong count = args[3]; /* Element count */
|
|
target_ulong op = args[4]; /* 0 = copy, 1 = invert */
|
|
uint64_t tmp;
|
|
unsigned int mask = (1 << esize) - 1;
|
|
int step = 1 << esize;
|
|
|
|
if (count > 0x80000000) {
|
|
return H_PARAMETER;
|
|
}
|
|
|
|
if ((dst & mask) || (src & mask) || (op > 1)) {
|
|
return H_PARAMETER;
|
|
}
|
|
|
|
if (dst >= src && dst < (src + (count << esize))) {
|
|
dst = dst + ((count - 1) << esize);
|
|
src = src + ((count - 1) << esize);
|
|
step = -step;
|
|
}
|
|
|
|
while (count--) {
|
|
switch (esize) {
|
|
case 0:
|
|
tmp = ldub_phys(cs->as, src);
|
|
break;
|
|
case 1:
|
|
tmp = lduw_phys(cs->as, src);
|
|
break;
|
|
case 2:
|
|
tmp = ldl_phys(cs->as, src);
|
|
break;
|
|
case 3:
|
|
tmp = ldq_phys(cs->as, src);
|
|
break;
|
|
default:
|
|
return H_PARAMETER;
|
|
}
|
|
if (op == 1) {
|
|
tmp = ~tmp;
|
|
}
|
|
switch (esize) {
|
|
case 0:
|
|
stb_phys(cs->as, dst, tmp);
|
|
break;
|
|
case 1:
|
|
stw_phys(cs->as, dst, tmp);
|
|
break;
|
|
case 2:
|
|
stl_phys(cs->as, dst, tmp);
|
|
break;
|
|
case 3:
|
|
stq_phys(cs->as, dst, tmp);
|
|
break;
|
|
}
|
|
dst = dst + step;
|
|
src = src + step;
|
|
}
|
|
|
|
return H_SUCCESS;
|
|
}
|
|
|
|
static target_ulong h_logical_icbi(PowerPCCPU *cpu, sPAPRMachineState *spapr,
|
|
target_ulong opcode, target_ulong *args)
|
|
{
|
|
/* Nothing to do on emulation, KVM will trap this in the kernel */
|
|
return H_SUCCESS;
|
|
}
|
|
|
|
static target_ulong h_logical_dcbf(PowerPCCPU *cpu, sPAPRMachineState *spapr,
|
|
target_ulong opcode, target_ulong *args)
|
|
{
|
|
/* Nothing to do on emulation, KVM will trap this in the kernel */
|
|
return H_SUCCESS;
|
|
}
|
|
|
|
static target_ulong h_set_mode_resource_le(PowerPCCPU *cpu,
|
|
target_ulong mflags,
|
|
target_ulong value1,
|
|
target_ulong value2)
|
|
{
|
|
CPUState *cs;
|
|
|
|
if (value1) {
|
|
return H_P3;
|
|
}
|
|
if (value2) {
|
|
return H_P4;
|
|
}
|
|
|
|
switch (mflags) {
|
|
case H_SET_MODE_ENDIAN_BIG:
|
|
CPU_FOREACH(cs) {
|
|
set_spr(cs, SPR_LPCR, 0, LPCR_ILE);
|
|
}
|
|
spapr_pci_switch_vga(true);
|
|
return H_SUCCESS;
|
|
|
|
case H_SET_MODE_ENDIAN_LITTLE:
|
|
CPU_FOREACH(cs) {
|
|
set_spr(cs, SPR_LPCR, LPCR_ILE, LPCR_ILE);
|
|
}
|
|
spapr_pci_switch_vga(false);
|
|
return H_SUCCESS;
|
|
}
|
|
|
|
return H_UNSUPPORTED_FLAG;
|
|
}
|
|
|
|
static target_ulong h_set_mode_resource_addr_trans_mode(PowerPCCPU *cpu,
|
|
target_ulong mflags,
|
|
target_ulong value1,
|
|
target_ulong value2)
|
|
{
|
|
CPUState *cs;
|
|
PowerPCCPUClass *pcc = POWERPC_CPU_GET_CLASS(cpu);
|
|
|
|
if (!(pcc->insns_flags2 & PPC2_ISA207S)) {
|
|
return H_P2;
|
|
}
|
|
if (value1) {
|
|
return H_P3;
|
|
}
|
|
if (value2) {
|
|
return H_P4;
|
|
}
|
|
|
|
if (mflags == AIL_RESERVED) {
|
|
return H_UNSUPPORTED_FLAG;
|
|
}
|
|
|
|
CPU_FOREACH(cs) {
|
|
set_spr(cs, SPR_LPCR, mflags << LPCR_AIL_SHIFT, LPCR_AIL);
|
|
}
|
|
|
|
return H_SUCCESS;
|
|
}
|
|
|
|
static target_ulong h_set_mode(PowerPCCPU *cpu, sPAPRMachineState *spapr,
|
|
target_ulong opcode, target_ulong *args)
|
|
{
|
|
target_ulong resource = args[1];
|
|
target_ulong ret = H_P2;
|
|
|
|
switch (resource) {
|
|
case H_SET_MODE_RESOURCE_LE:
|
|
ret = h_set_mode_resource_le(cpu, args[0], args[2], args[3]);
|
|
break;
|
|
case H_SET_MODE_RESOURCE_ADDR_TRANS_MODE:
|
|
ret = h_set_mode_resource_addr_trans_mode(cpu, args[0],
|
|
args[2], args[3]);
|
|
break;
|
|
}
|
|
|
|
return ret;
|
|
}
|
|
|
|
typedef struct {
|
|
uint32_t cpu_version;
|
|
Error *err;
|
|
} SetCompatState;
|
|
|
|
static void do_set_compat(CPUState *cs, run_on_cpu_data arg)
|
|
{
|
|
PowerPCCPU *cpu = POWERPC_CPU(cs);
|
|
SetCompatState *s = arg.host_ptr;
|
|
|
|
cpu_synchronize_state(cs);
|
|
ppc_set_compat(cpu, s->cpu_version, &s->err);
|
|
}
|
|
|
|
#define get_compat_level(cpuver) ( \
|
|
((cpuver) == CPU_POWERPC_LOGICAL_2_05) ? 2050 : \
|
|
((cpuver) == CPU_POWERPC_LOGICAL_2_06) ? 2060 : \
|
|
((cpuver) == CPU_POWERPC_LOGICAL_2_06_PLUS) ? 2061 : \
|
|
((cpuver) == CPU_POWERPC_LOGICAL_2_07) ? 2070 : 0)
|
|
|
|
static void cas_handle_compat_cpu(PowerPCCPUClass *pcc, uint32_t pvr,
|
|
unsigned max_lvl, unsigned *compat_lvl,
|
|
unsigned *cpu_version)
|
|
{
|
|
unsigned lvl = get_compat_level(pvr);
|
|
bool is205, is206, is207;
|
|
|
|
if (!lvl) {
|
|
return;
|
|
}
|
|
|
|
/* If it is a logical PVR, try to determine the highest level */
|
|
is205 = (pcc->pcr_supported & PCR_COMPAT_2_05) &&
|
|
(lvl == get_compat_level(CPU_POWERPC_LOGICAL_2_05));
|
|
is206 = (pcc->pcr_supported & PCR_COMPAT_2_06) &&
|
|
((lvl == get_compat_level(CPU_POWERPC_LOGICAL_2_06)) ||
|
|
(lvl == get_compat_level(CPU_POWERPC_LOGICAL_2_06_PLUS)));
|
|
is207 = (pcc->pcr_supported & PCR_COMPAT_2_07) &&
|
|
(lvl == get_compat_level(CPU_POWERPC_LOGICAL_2_07));
|
|
|
|
if (is205 || is206 || is207) {
|
|
if (!max_lvl) {
|
|
/* User did not set the level, choose the highest */
|
|
if (*compat_lvl <= lvl) {
|
|
*compat_lvl = lvl;
|
|
*cpu_version = pvr;
|
|
}
|
|
} else if (max_lvl >= lvl) {
|
|
/* User chose the level, don't set higher than this */
|
|
*compat_lvl = lvl;
|
|
*cpu_version = pvr;
|
|
}
|
|
}
|
|
}
|
|
|
|
static target_ulong h_client_architecture_support(PowerPCCPU *cpu_,
|
|
sPAPRMachineState *spapr,
|
|
target_ulong opcode,
|
|
target_ulong *args)
|
|
{
|
|
target_ulong list = ppc64_phys_to_real(args[0]);
|
|
target_ulong ov_table;
|
|
PowerPCCPUClass *pcc = POWERPC_CPU_GET_CLASS(cpu_);
|
|
CPUState *cs;
|
|
bool cpu_match = false, cpu_update = true;
|
|
unsigned old_cpu_version = cpu_->cpu_version;
|
|
unsigned compat_lvl = 0, cpu_version = 0;
|
|
unsigned max_lvl = get_compat_level(cpu_->max_compat);
|
|
int counter;
|
|
sPAPROptionVector *ov5_guest, *ov5_cas_old, *ov5_updates;
|
|
|
|
/* Parse PVR list */
|
|
for (counter = 0; counter < 512; ++counter) {
|
|
uint32_t pvr, pvr_mask;
|
|
|
|
pvr_mask = ldl_be_phys(&address_space_memory, list);
|
|
list += 4;
|
|
pvr = ldl_be_phys(&address_space_memory, list);
|
|
list += 4;
|
|
|
|
trace_spapr_cas_pvr_try(pvr);
|
|
if (!max_lvl &&
|
|
((cpu_->env.spr[SPR_PVR] & pvr_mask) == (pvr & pvr_mask))) {
|
|
cpu_match = true;
|
|
cpu_version = 0;
|
|
} else if (pvr == cpu_->cpu_version) {
|
|
cpu_match = true;
|
|
cpu_version = cpu_->cpu_version;
|
|
} else if (!cpu_match) {
|
|
cas_handle_compat_cpu(pcc, pvr, max_lvl, &compat_lvl, &cpu_version);
|
|
}
|
|
/* Terminator record */
|
|
if (~pvr_mask & pvr) {
|
|
break;
|
|
}
|
|
}
|
|
|
|
/* Parsing finished */
|
|
trace_spapr_cas_pvr(cpu_->cpu_version, cpu_match,
|
|
cpu_version, pcc->pcr_mask);
|
|
|
|
/* Update CPUs */
|
|
if (old_cpu_version != cpu_version) {
|
|
CPU_FOREACH(cs) {
|
|
SetCompatState s = {
|
|
.cpu_version = cpu_version,
|
|
.err = NULL,
|
|
};
|
|
|
|
run_on_cpu(cs, do_set_compat, RUN_ON_CPU_HOST_PTR(&s));
|
|
|
|
if (s.err) {
|
|
error_report_err(s.err);
|
|
return H_HARDWARE;
|
|
}
|
|
}
|
|
}
|
|
|
|
if (!cpu_version) {
|
|
cpu_update = false;
|
|
}
|
|
|
|
/* For the future use: here @ov_table points to the first option vector */
|
|
ov_table = list;
|
|
|
|
ov5_guest = spapr_ovec_parse_vector(ov_table, 5);
|
|
|
|
/* NOTE: there are actually a number of ov5 bits where input from the
|
|
* guest is always zero, and the platform/QEMU enables them independently
|
|
* of guest input. To model these properly we'd want some sort of mask,
|
|
* but since they only currently apply to memory migration as defined
|
|
* by LoPAPR 1.1, 14.5.4.8, which QEMU doesn't implement, we don't need
|
|
* to worry about this for now.
|
|
*/
|
|
ov5_cas_old = spapr_ovec_clone(spapr->ov5_cas);
|
|
/* full range of negotiated ov5 capabilities */
|
|
spapr_ovec_intersect(spapr->ov5_cas, spapr->ov5, ov5_guest);
|
|
spapr_ovec_cleanup(ov5_guest);
|
|
/* capabilities that have been added since CAS-generated guest reset.
|
|
* if capabilities have since been removed, generate another reset
|
|
*/
|
|
ov5_updates = spapr_ovec_new();
|
|
spapr->cas_reboot = spapr_ovec_diff(ov5_updates,
|
|
ov5_cas_old, spapr->ov5_cas);
|
|
|
|
if (!spapr->cas_reboot) {
|
|
spapr->cas_reboot =
|
|
(spapr_h_cas_compose_response(spapr, args[1], args[2], cpu_update,
|
|
ov5_updates) != 0);
|
|
}
|
|
spapr_ovec_cleanup(ov5_updates);
|
|
|
|
if (spapr->cas_reboot) {
|
|
qemu_system_reset_request();
|
|
}
|
|
|
|
return H_SUCCESS;
|
|
}
|
|
|
|
static spapr_hcall_fn papr_hypercall_table[(MAX_HCALL_OPCODE / 4) + 1];
|
|
static spapr_hcall_fn kvmppc_hypercall_table[KVMPPC_HCALL_MAX - KVMPPC_HCALL_BASE + 1];
|
|
|
|
void spapr_register_hypercall(target_ulong opcode, spapr_hcall_fn fn)
|
|
{
|
|
spapr_hcall_fn *slot;
|
|
|
|
if (opcode <= MAX_HCALL_OPCODE) {
|
|
assert((opcode & 0x3) == 0);
|
|
|
|
slot = &papr_hypercall_table[opcode / 4];
|
|
} else {
|
|
assert((opcode >= KVMPPC_HCALL_BASE) && (opcode <= KVMPPC_HCALL_MAX));
|
|
|
|
slot = &kvmppc_hypercall_table[opcode - KVMPPC_HCALL_BASE];
|
|
}
|
|
|
|
assert(!(*slot));
|
|
*slot = fn;
|
|
}
|
|
|
|
target_ulong spapr_hypercall(PowerPCCPU *cpu, target_ulong opcode,
|
|
target_ulong *args)
|
|
{
|
|
sPAPRMachineState *spapr = SPAPR_MACHINE(qdev_get_machine());
|
|
|
|
if ((opcode <= MAX_HCALL_OPCODE)
|
|
&& ((opcode & 0x3) == 0)) {
|
|
spapr_hcall_fn fn = papr_hypercall_table[opcode / 4];
|
|
|
|
if (fn) {
|
|
return fn(cpu, spapr, opcode, args);
|
|
}
|
|
} else if ((opcode >= KVMPPC_HCALL_BASE) &&
|
|
(opcode <= KVMPPC_HCALL_MAX)) {
|
|
spapr_hcall_fn fn = kvmppc_hypercall_table[opcode - KVMPPC_HCALL_BASE];
|
|
|
|
if (fn) {
|
|
return fn(cpu, spapr, opcode, args);
|
|
}
|
|
}
|
|
|
|
qemu_log_mask(LOG_UNIMP, "Unimplemented SPAPR hcall 0x" TARGET_FMT_lx "\n",
|
|
opcode);
|
|
return H_FUNCTION;
|
|
}
|
|
|
|
static void hypercall_register_types(void)
|
|
{
|
|
/* hcall-pft */
|
|
spapr_register_hypercall(H_ENTER, h_enter);
|
|
spapr_register_hypercall(H_REMOVE, h_remove);
|
|
spapr_register_hypercall(H_PROTECT, h_protect);
|
|
spapr_register_hypercall(H_READ, h_read);
|
|
|
|
/* hcall-bulk */
|
|
spapr_register_hypercall(H_BULK_REMOVE, h_bulk_remove);
|
|
|
|
/* hcall-splpar */
|
|
spapr_register_hypercall(H_REGISTER_VPA, h_register_vpa);
|
|
spapr_register_hypercall(H_CEDE, h_cede);
|
|
|
|
/* processor register resource access h-calls */
|
|
spapr_register_hypercall(H_SET_SPRG0, h_set_sprg0);
|
|
spapr_register_hypercall(H_SET_DABR, h_set_dabr);
|
|
spapr_register_hypercall(H_SET_XDABR, h_set_xdabr);
|
|
spapr_register_hypercall(H_PAGE_INIT, h_page_init);
|
|
spapr_register_hypercall(H_SET_MODE, h_set_mode);
|
|
|
|
/* "debugger" hcalls (also used by SLOF). Note: We do -not- differenciate
|
|
* here between the "CI" and the "CACHE" variants, they will use whatever
|
|
* mapping attributes qemu is using. When using KVM, the kernel will
|
|
* enforce the attributes more strongly
|
|
*/
|
|
spapr_register_hypercall(H_LOGICAL_CI_LOAD, h_logical_load);
|
|
spapr_register_hypercall(H_LOGICAL_CI_STORE, h_logical_store);
|
|
spapr_register_hypercall(H_LOGICAL_CACHE_LOAD, h_logical_load);
|
|
spapr_register_hypercall(H_LOGICAL_CACHE_STORE, h_logical_store);
|
|
spapr_register_hypercall(H_LOGICAL_ICBI, h_logical_icbi);
|
|
spapr_register_hypercall(H_LOGICAL_DCBF, h_logical_dcbf);
|
|
spapr_register_hypercall(KVMPPC_H_LOGICAL_MEMOP, h_logical_memop);
|
|
|
|
/* qemu/KVM-PPC specific hcalls */
|
|
spapr_register_hypercall(KVMPPC_H_RTAS, h_rtas);
|
|
|
|
/* ibm,client-architecture-support support */
|
|
spapr_register_hypercall(KVMPPC_H_CAS, h_client_architecture_support);
|
|
}
|
|
|
|
type_init(hypercall_register_types)
|