new file mode 100644
@@ -0,0 +1,197 @@
+/*
+ * PowerPC emulation special registers manipulation helpers for qemu.
+ *
+ * Copyright (c) 2003-2007 Jocelyn Mayer
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this library; if not, see <http://www.gnu.org/licenses/>.
+ */
+
+#include "qemu/osdep.h"
+#include "qemu/main-loop.h"
+#include "exec/exec-all.h"
+#include "sysemu/kvm.h"
+#include "helper_regs.h"
+
+/* Swap temporary saved registers with GPRs */
+void hreg_swap_gpr_tgpr(CPUPPCState *env)
+{
+ target_ulong tmp;
+
+ tmp = env->gpr[0];
+ env->gpr[0] = env->tgpr[0];
+ env->tgpr[0] = tmp;
+ tmp = env->gpr[1];
+ env->gpr[1] = env->tgpr[1];
+ env->tgpr[1] = tmp;
+ tmp = env->gpr[2];
+ env->gpr[2] = env->tgpr[2];
+ env->tgpr[2] = tmp;
+ tmp = env->gpr[3];
+ env->gpr[3] = env->tgpr[3];
+ env->tgpr[3] = tmp;
+}
+
+void hreg_compute_mem_idx(CPUPPCState *env)
+{
+ /*
+ * This is our encoding for server processors. The architecture
+ * specifies that there is no such thing as userspace with
+ * translation off, however it appears that MacOS does it and some
+ * 32-bit CPUs support it. Weird...
+ *
+ * 0 = Guest User space virtual mode
+ * 1 = Guest Kernel space virtual mode
+ * 2 = Guest User space real mode
+ * 3 = Guest Kernel space real mode
+ * 4 = HV User space virtual mode
+ * 5 = HV Kernel space virtual mode
+ * 6 = HV User space real mode
+ * 7 = HV Kernel space real mode
+ *
+ * For BookE, we need 8 MMU modes as follow:
+ *
+ * 0 = AS 0 HV User space
+ * 1 = AS 0 HV Kernel space
+ * 2 = AS 1 HV User space
+ * 3 = AS 1 HV Kernel space
+ * 4 = AS 0 Guest User space
+ * 5 = AS 0 Guest Kernel space
+ * 6 = AS 1 Guest User space
+ * 7 = AS 1 Guest Kernel space
+ */
+ if (env->mmu_model & POWERPC_MMU_BOOKE) {
+ env->immu_idx = env->dmmu_idx = msr_pr ? 0 : 1;
+ env->immu_idx += msr_is ? 2 : 0;
+ env->dmmu_idx += msr_ds ? 2 : 0;
+ env->immu_idx += msr_gs ? 4 : 0;
+ env->dmmu_idx += msr_gs ? 4 : 0;
+ } else {
+ env->immu_idx = env->dmmu_idx = msr_pr ? 0 : 1;
+ env->immu_idx += msr_ir ? 0 : 2;
+ env->dmmu_idx += msr_dr ? 0 : 2;
+ env->immu_idx += msr_hv ? 4 : 0;
+ env->dmmu_idx += msr_hv ? 4 : 0;
+ }
+}
+
+void hreg_compute_hflags(CPUPPCState *env)
+{
+ target_ulong hflags_mask;
+
+ /* We 'forget' FE0 & FE1: we'll never generate imprecise exceptions */
+ hflags_mask = (1 << MSR_VR) | (1 << MSR_AP) | (1 << MSR_SA) |
+ (1 << MSR_PR) | (1 << MSR_FP) | (1 << MSR_SE) | (1 << MSR_BE) |
+ (1 << MSR_LE) | (1 << MSR_VSX) | (1 << MSR_IR) | (1 << MSR_DR);
+ hflags_mask |= (1ULL << MSR_CM) | (1ULL << MSR_SF) | MSR_HVB;
+ hreg_compute_mem_idx(env);
+ env->hflags = env->msr & hflags_mask;
+ /* Merge with hflags coming from other registers */
+ env->hflags |= env->hflags_nmsr;
+}
+
+void cpu_interrupt_exittb(CPUState *cs)
+{
+ if (!kvm_enabled()) {
+ return;
+ }
+
+ if (!qemu_mutex_iothread_locked()) {
+ qemu_mutex_lock_iothread();
+ cpu_interrupt(cs, CPU_INTERRUPT_EXITTB);
+ qemu_mutex_unlock_iothread();
+ } else {
+ cpu_interrupt(cs, CPU_INTERRUPT_EXITTB);
+ }
+}
+
+int hreg_store_msr(CPUPPCState *env, target_ulong value, int alter_hv)
+{
+ int excp;
+#if !defined(CONFIG_USER_ONLY)
+ CPUState *cs = env_cpu(env);
+#endif
+
+ excp = 0;
+ value &= env->msr_mask;
+#if !defined(CONFIG_USER_ONLY)
+ /* Neither mtmsr nor guest state can alter HV */
+ if (!alter_hv || !(env->msr & MSR_HVB)) {
+ value &= ~MSR_HVB;
+ value |= env->msr & MSR_HVB;
+ }
+ if (((value >> MSR_IR) & 1) != msr_ir ||
+ ((value >> MSR_DR) & 1) != msr_dr) {
+ cpu_interrupt_exittb(cs);
+ }
+ if ((env->mmu_model & POWERPC_MMU_BOOKE) &&
+ ((value >> MSR_GS) & 1) != msr_gs) {
+ cpu_interrupt_exittb(cs);
+ }
+ if (unlikely((env->flags & POWERPC_FLAG_TGPR) &&
+ ((value ^ env->msr) & (1 << MSR_TGPR)))) {
+ /* Swap temporary saved registers with GPRs */
+ hreg_swap_gpr_tgpr(env);
+ }
+ if (unlikely((value >> MSR_EP) & 1) != msr_ep) {
+ /* Change the exception prefix on PowerPC 601 */
+ env->excp_prefix = ((value >> MSR_EP) & 1) * 0xFFF00000;
+ }
+ /*
+ * If PR=1 then EE, IR and DR must be 1
+ *
+ * Note: We only enforce this on 64-bit server processors.
+ * It appears that:
+ * - 32-bit implementations supports PR=1 and EE/DR/IR=0 and MacOS
+ * exploits it.
+ * - 64-bit embedded implementations do not need any operation to be
+ * performed when PR is set.
+ */
+ if (is_book3s_arch2x(env) && ((value >> MSR_PR) & 1)) {
+ value |= (1 << MSR_EE) | (1 << MSR_DR) | (1 << MSR_IR);
+ }
+#endif
+ env->msr = value;
+ hreg_compute_hflags(env);
+#if !defined(CONFIG_USER_ONLY)
+ if (unlikely(msr_pow == 1)) {
+ if (!env->pending_interrupts && (*env->check_pow)(env)) {
+ cs->halted = 1;
+ excp = EXCP_HALTED;
+ }
+ }
+#endif
+
+ return excp;
+}
+
+#ifndef CONFIG_USER_ONLY
+void check_tlb_flush(CPUPPCState *env, bool global)
+{
+ CPUState *cs = env_cpu(env);
+
+ /* Handle global flushes first */
+ if (global && (env->tlb_need_flush & TLB_NEED_GLOBAL_FLUSH)) {
+ env->tlb_need_flush &= ~TLB_NEED_GLOBAL_FLUSH;
+ env->tlb_need_flush &= ~TLB_NEED_LOCAL_FLUSH;
+ tlb_flush_all_cpus_synced(cs);
+ return;
+ }
+
+ /* Then handle local ones */
+ if (env->tlb_need_flush & TLB_NEED_LOCAL_FLUSH) {
+ env->tlb_need_flush &= ~TLB_NEED_LOCAL_FLUSH;
+ tlb_flush(cs);
+ }
+}
+#endif
@@ -20,184 +20,16 @@
#ifndef HELPER_REGS_H
#define HELPER_REGS_H
-#include "qemu/main-loop.h"
-#include "exec/exec-all.h"
-#include "sysemu/kvm.h"
+void hreg_swap_gpr_tgpr(CPUPPCState *env);
+void hreg_compute_mem_idx(CPUPPCState *env);
+void hreg_compute_hflags(CPUPPCState *env);
+void cpu_interrupt_exittb(CPUState *cs);
+int hreg_store_msr(CPUPPCState *env, target_ulong value, int alter_hv);
-/* Swap temporary saved registers with GPRs */
-static inline void hreg_swap_gpr_tgpr(CPUPPCState *env)
-{
- target_ulong tmp;
-
- tmp = env->gpr[0];
- env->gpr[0] = env->tgpr[0];
- env->tgpr[0] = tmp;
- tmp = env->gpr[1];
- env->gpr[1] = env->tgpr[1];
- env->tgpr[1] = tmp;
- tmp = env->gpr[2];
- env->gpr[2] = env->tgpr[2];
- env->tgpr[2] = tmp;
- tmp = env->gpr[3];
- env->gpr[3] = env->tgpr[3];
- env->tgpr[3] = tmp;
-}
-
-static inline void hreg_compute_mem_idx(CPUPPCState *env)
-{
- /*
- * This is our encoding for server processors. The architecture
- * specifies that there is no such thing as userspace with
- * translation off, however it appears that MacOS does it and some
- * 32-bit CPUs support it. Weird...
- *
- * 0 = Guest User space virtual mode
- * 1 = Guest Kernel space virtual mode
- * 2 = Guest User space real mode
- * 3 = Guest Kernel space real mode
- * 4 = HV User space virtual mode
- * 5 = HV Kernel space virtual mode
- * 6 = HV User space real mode
- * 7 = HV Kernel space real mode
- *
- * For BookE, we need 8 MMU modes as follow:
- *
- * 0 = AS 0 HV User space
- * 1 = AS 0 HV Kernel space
- * 2 = AS 1 HV User space
- * 3 = AS 1 HV Kernel space
- * 4 = AS 0 Guest User space
- * 5 = AS 0 Guest Kernel space
- * 6 = AS 1 Guest User space
- * 7 = AS 1 Guest Kernel space
- */
- if (env->mmu_model & POWERPC_MMU_BOOKE) {
- env->immu_idx = env->dmmu_idx = msr_pr ? 0 : 1;
- env->immu_idx += msr_is ? 2 : 0;
- env->dmmu_idx += msr_ds ? 2 : 0;
- env->immu_idx += msr_gs ? 4 : 0;
- env->dmmu_idx += msr_gs ? 4 : 0;
- } else {
- env->immu_idx = env->dmmu_idx = msr_pr ? 0 : 1;
- env->immu_idx += msr_ir ? 0 : 2;
- env->dmmu_idx += msr_dr ? 0 : 2;
- env->immu_idx += msr_hv ? 4 : 0;
- env->dmmu_idx += msr_hv ? 4 : 0;
- }
-}
-
-static inline void hreg_compute_hflags(CPUPPCState *env)
-{
- target_ulong hflags_mask;
-
- /* We 'forget' FE0 & FE1: we'll never generate imprecise exceptions */
- hflags_mask = (1 << MSR_VR) | (1 << MSR_AP) | (1 << MSR_SA) |
- (1 << MSR_PR) | (1 << MSR_FP) | (1 << MSR_SE) | (1 << MSR_BE) |
- (1 << MSR_LE) | (1 << MSR_VSX) | (1 << MSR_IR) | (1 << MSR_DR);
- hflags_mask |= (1ULL << MSR_CM) | (1ULL << MSR_SF) | MSR_HVB;
- hreg_compute_mem_idx(env);
- env->hflags = env->msr & hflags_mask;
- /* Merge with hflags coming from other registers */
- env->hflags |= env->hflags_nmsr;
-}
-
-static inline void cpu_interrupt_exittb(CPUState *cs)
-{
- if (!kvm_enabled()) {
- return;
- }
-
- if (!qemu_mutex_iothread_locked()) {
- qemu_mutex_lock_iothread();
- cpu_interrupt(cs, CPU_INTERRUPT_EXITTB);
- qemu_mutex_unlock_iothread();
- } else {
- cpu_interrupt(cs, CPU_INTERRUPT_EXITTB);
- }
-}
-
-static inline int hreg_store_msr(CPUPPCState *env, target_ulong value,
- int alter_hv)
-{
- int excp;
-#if !defined(CONFIG_USER_ONLY)
- CPUState *cs = env_cpu(env);
-#endif
-
- excp = 0;
- value &= env->msr_mask;
-#if !defined(CONFIG_USER_ONLY)
- /* Neither mtmsr nor guest state can alter HV */
- if (!alter_hv || !(env->msr & MSR_HVB)) {
- value &= ~MSR_HVB;
- value |= env->msr & MSR_HVB;
- }
- if (((value >> MSR_IR) & 1) != msr_ir ||
- ((value >> MSR_DR) & 1) != msr_dr) {
- cpu_interrupt_exittb(cs);
- }
- if ((env->mmu_model & POWERPC_MMU_BOOKE) &&
- ((value >> MSR_GS) & 1) != msr_gs) {
- cpu_interrupt_exittb(cs);
- }
- if (unlikely((env->flags & POWERPC_FLAG_TGPR) &&
- ((value ^ env->msr) & (1 << MSR_TGPR)))) {
- /* Swap temporary saved registers with GPRs */
- hreg_swap_gpr_tgpr(env);
- }
- if (unlikely((value >> MSR_EP) & 1) != msr_ep) {
- /* Change the exception prefix on PowerPC 601 */
- env->excp_prefix = ((value >> MSR_EP) & 1) * 0xFFF00000;
- }
- /*
- * If PR=1 then EE, IR and DR must be 1
- *
- * Note: We only enforce this on 64-bit server processors.
- * It appears that:
- * - 32-bit implementations supports PR=1 and EE/DR/IR=0 and MacOS
- * exploits it.
- * - 64-bit embedded implementations do not need any operation to be
- * performed when PR is set.
- */
- if (is_book3s_arch2x(env) && ((value >> MSR_PR) & 1)) {
- value |= (1 << MSR_EE) | (1 << MSR_DR) | (1 << MSR_IR);
- }
-#endif
- env->msr = value;
- hreg_compute_hflags(env);
-#if !defined(CONFIG_USER_ONLY)
- if (unlikely(msr_pow == 1)) {
- if (!env->pending_interrupts && (*env->check_pow)(env)) {
- cs->halted = 1;
- excp = EXCP_HALTED;
- }
- }
-#endif
-
- return excp;
-}
-
-#if !defined(CONFIG_USER_ONLY)
-static inline void check_tlb_flush(CPUPPCState *env, bool global)
-{
- CPUState *cs = env_cpu(env);
-
- /* Handle global flushes first */
- if (global && (env->tlb_need_flush & TLB_NEED_GLOBAL_FLUSH)) {
- env->tlb_need_flush &= ~TLB_NEED_GLOBAL_FLUSH;
- env->tlb_need_flush &= ~TLB_NEED_LOCAL_FLUSH;
- tlb_flush_all_cpus_synced(cs);
- return;
- }
-
- /* Then handle local ones */
- if (env->tlb_need_flush & TLB_NEED_LOCAL_FLUSH) {
- env->tlb_need_flush &= ~TLB_NEED_LOCAL_FLUSH;
- tlb_flush(cs);
- }
-}
-#else
+#ifdef CONFIG_USER_ONLY
static inline void check_tlb_flush(CPUPPCState *env, bool global) { }
+#else
+void check_tlb_flush(CPUPPCState *env, bool global);
#endif
#endif /* HELPER_REGS_H */
@@ -22,6 +22,7 @@
#include "internal.h"
#include "qemu/host-utils.h"
#include "qemu/main-loop.h"
+#include "qemu/log.h"
#include "exec/helper-proto.h"
#include "crypto/aes.h"
#include "fpu/softfloat.h"
@@ -6,6 +6,7 @@ ppc_ss.add(files(
'excp_helper.c',
'fpu_helper.c',
'gdbstub.c',
+ 'helper_regs.c',
'int_helper.c',
'mem_helper.c',
'misc_helper.c',