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[PATCH v4 38/41] target/sh4: Make sh4_cpu_tlb_fill sysemu only
From: |
Richard Henderson |
Subject: |
[PATCH v4 38/41] target/sh4: Make sh4_cpu_tlb_fill sysemu only |
Date: |
Wed, 6 Oct 2021 10:23:04 -0700 |
The fallback code in cpu_loop_exit_sigsegv is sufficient
for sh4 linux-user.
Remove the code from cpu_loop that raised SIGSEGV.
Cc: Yoshinori Sato <ysato@users.sourceforge.jp>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
---
target/sh4/cpu.h | 6 +++---
linux-user/sh4/cpu_loop.c | 8 --------
target/sh4/cpu.c | 2 +-
target/sh4/helper.c | 9 +--------
4 files changed, 5 insertions(+), 20 deletions(-)
diff --git a/target/sh4/cpu.h b/target/sh4/cpu.h
index dc81406646..4cfb109f56 100644
--- a/target/sh4/cpu.h
+++ b/target/sh4/cpu.h
@@ -213,12 +213,12 @@ void superh_cpu_do_unaligned_access(CPUState *cpu, vaddr
addr,
uintptr_t retaddr) QEMU_NORETURN;
void sh4_translate_init(void);
+void sh4_cpu_list(void);
+
+#if !defined(CONFIG_USER_ONLY)
bool superh_cpu_tlb_fill(CPUState *cs, vaddr address, int size,
MMUAccessType access_type, int mmu_idx,
bool probe, uintptr_t retaddr);
-
-void sh4_cpu_list(void);
-#if !defined(CONFIG_USER_ONLY)
void superh_cpu_do_interrupt(CPUState *cpu);
bool superh_cpu_exec_interrupt(CPUState *cpu, int int_req);
void cpu_sh4_invalidate_tlb(CPUSH4State *s);
diff --git a/linux-user/sh4/cpu_loop.c b/linux-user/sh4/cpu_loop.c
index 65b8972e3c..ac9b01840c 100644
--- a/linux-user/sh4/cpu_loop.c
+++ b/linux-user/sh4/cpu_loop.c
@@ -65,14 +65,6 @@ void cpu_loop(CPUSH4State *env)
info.si_code = TARGET_TRAP_BRKPT;
queue_signal(env, info.si_signo, QEMU_SI_FAULT, &info);
break;
- case 0xa0:
- case 0xc0:
- info.si_signo = TARGET_SIGSEGV;
- info.si_errno = 0;
- info.si_code = TARGET_SEGV_MAPERR;
- info._sifields._sigfault._addr = env->tea;
- queue_signal(env, info.si_signo, QEMU_SI_FAULT, &info);
- break;
case EXCP_ATOMIC:
cpu_exec_step_atomic(cs);
arch_interrupt = false;
diff --git a/target/sh4/cpu.c b/target/sh4/cpu.c
index 2047742d03..06b2691dc4 100644
--- a/target/sh4/cpu.c
+++ b/target/sh4/cpu.c
@@ -236,9 +236,9 @@ static const struct SysemuCPUOps sh4_sysemu_ops = {
static const struct TCGCPUOps superh_tcg_ops = {
.initialize = sh4_translate_init,
.synchronize_from_tb = superh_cpu_synchronize_from_tb,
- .tlb_fill = superh_cpu_tlb_fill,
#ifndef CONFIG_USER_ONLY
+ .tlb_fill = superh_cpu_tlb_fill,
.cpu_exec_interrupt = superh_cpu_exec_interrupt,
.do_interrupt = superh_cpu_do_interrupt,
.do_unaligned_access = superh_cpu_do_unaligned_access,
diff --git a/target/sh4/helper.c b/target/sh4/helper.c
index 53cb9c3b63..6a620e36fc 100644
--- a/target/sh4/helper.c
+++ b/target/sh4/helper.c
@@ -796,8 +796,6 @@ bool superh_cpu_exec_interrupt(CPUState *cs, int
interrupt_request)
return false;
}
-#endif /* !CONFIG_USER_ONLY */
-
bool superh_cpu_tlb_fill(CPUState *cs, vaddr address, int size,
MMUAccessType access_type, int mmu_idx,
bool probe, uintptr_t retaddr)
@@ -806,11 +804,6 @@ bool superh_cpu_tlb_fill(CPUState *cs, vaddr address, int
size,
CPUSH4State *env = &cpu->env;
int ret;
-#ifdef CONFIG_USER_ONLY
- ret = (access_type == MMU_DATA_STORE ? MMU_DTLB_VIOLATION_WRITE :
- access_type == MMU_INST_FETCH ? MMU_ITLB_VIOLATION :
- MMU_DTLB_VIOLATION_READ);
-#else
target_ulong physical;
int prot;
@@ -829,7 +822,6 @@ bool superh_cpu_tlb_fill(CPUState *cs, vaddr address, int
size,
if (ret != MMU_DTLB_MULTIPLE && ret != MMU_ITLB_MULTIPLE) {
env->pteh = (env->pteh & PTEH_ASID_MASK) | (address & PTEH_VPN_MASK);
}
-#endif
env->tea = address;
switch (ret) {
@@ -868,3 +860,4 @@ bool superh_cpu_tlb_fill(CPUState *cs, vaddr address, int
size,
}
cpu_loop_exit_restore(cs, retaddr);
}
+#endif /* !CONFIG_USER_ONLY */
--
2.25.1
- [PATCH v4 02/41] accel/tcg: Move clear_helper_retaddr to cpu loop, (continued)
- [PATCH v4 02/41] accel/tcg: Move clear_helper_retaddr to cpu loop, Richard Henderson, 2021/10/06
- [PATCH v4 22/41] target/arm: Use cpu_loop_exit_sigsegv for mte tag lookup, Richard Henderson, 2021/10/06
- [PATCH v4 25/41] target/hexagon: Remove hexagon_cpu_tlb_fill, Richard Henderson, 2021/10/06
- [PATCH v4 31/41] target/nios2: Implement nios2_cpu_record_sigsegv, Richard Henderson, 2021/10/06
- [PATCH v4 30/41] target/mips: Make mips_cpu_tlb_fill sysemu only, Richard Henderson, 2021/10/06
- [PATCH v4 32/41] linux-user/openrisc: Adjust signal for EXCP_RANGE, EXCP_FPE, Richard Henderson, 2021/10/06
- [PATCH v4 36/41] target/s390x: Use probe_access_flags in s390_probe_access, Richard Henderson, 2021/10/06
- [PATCH v4 35/41] target/riscv: Make riscv_cpu_tlb_fill sysemu only, Richard Henderson, 2021/10/06
- [PATCH v4 38/41] target/sh4: Make sh4_cpu_tlb_fill sysemu only,
Richard Henderson <=
- [PATCH v4 40/41] target/xtensa: Make xtensa_cpu_tlb_fill sysemu only, Richard Henderson, 2021/10/06
- [PATCH v4 41/41] accel/tcg: Restrict TCGCPUOps::tlb_fill() to sysemu, Richard Henderson, 2021/10/06