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[PATCH v6 29/66] target/microblaze: Make mb_cpu_tlb_fill sysemu only
From: |
Richard Henderson |
Subject: |
[PATCH v6 29/66] target/microblaze: Make mb_cpu_tlb_fill sysemu only |
Date: |
Sat, 30 Oct 2021 10:15:58 -0700 |
The fallback code in cpu_loop_exit_sigsegv is sufficient
for microblaze linux-user.
Remove the code from cpu_loop that handled the unnamed 0xaa exception.
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
---
target/microblaze/cpu.h | 8 ++++----
linux-user/microblaze/cpu_loop.c | 10 ----------
target/microblaze/cpu.c | 2 +-
target/microblaze/helper.c | 13 +------------
4 files changed, 6 insertions(+), 27 deletions(-)
diff --git a/target/microblaze/cpu.h b/target/microblaze/cpu.h
index b7a848bbae..e9cd0b88de 100644
--- a/target/microblaze/cpu.h
+++ b/target/microblaze/cpu.h
@@ -394,10 +394,6 @@ void mb_tcg_init(void);
#define MMU_USER_IDX 2
/* See NB_MMU_MODES further up the file. */
-bool mb_cpu_tlb_fill(CPUState *cs, vaddr address, int size,
- MMUAccessType access_type, int mmu_idx,
- bool probe, uintptr_t retaddr);
-
typedef CPUMBState CPUArchState;
typedef MicroBlazeCPU ArchCPU;
@@ -415,6 +411,10 @@ static inline void cpu_get_tb_cpu_state(CPUMBState *env,
target_ulong *pc,
}
#if !defined(CONFIG_USER_ONLY)
+bool mb_cpu_tlb_fill(CPUState *cs, vaddr address, int size,
+ MMUAccessType access_type, int mmu_idx,
+ bool probe, uintptr_t retaddr);
+
void mb_cpu_transaction_failed(CPUState *cs, hwaddr physaddr, vaddr addr,
unsigned size, MMUAccessType access_type,
int mmu_idx, MemTxAttrs attrs,
diff --git a/linux-user/microblaze/cpu_loop.c b/linux-user/microblaze/cpu_loop.c
index 52222eb93f..a94467dd2d 100644
--- a/linux-user/microblaze/cpu_loop.c
+++ b/linux-user/microblaze/cpu_loop.c
@@ -37,16 +37,6 @@ void cpu_loop(CPUMBState *env)
process_queued_cpu_work(cs);
switch (trapnr) {
- case 0xaa:
- {
- info.si_signo = TARGET_SIGSEGV;
- info.si_errno = 0;
- /* XXX: check env->error_code */
- info.si_code = TARGET_SEGV_MAPERR;
- info._sifields._sigfault._addr = 0;
- queue_signal(env, info.si_signo, QEMU_SI_FAULT, &info);
- }
- break;
case EXCP_INTERRUPT:
/* just indicate that signals should be handled asap */
break;
diff --git a/target/microblaze/cpu.c b/target/microblaze/cpu.c
index 15db277925..b9c888b87e 100644
--- a/target/microblaze/cpu.c
+++ b/target/microblaze/cpu.c
@@ -365,9 +365,9 @@ static const struct SysemuCPUOps mb_sysemu_ops = {
static const struct TCGCPUOps mb_tcg_ops = {
.initialize = mb_tcg_init,
.synchronize_from_tb = mb_cpu_synchronize_from_tb,
- .tlb_fill = mb_cpu_tlb_fill,
#ifndef CONFIG_USER_ONLY
+ .tlb_fill = mb_cpu_tlb_fill,
.cpu_exec_interrupt = mb_cpu_exec_interrupt,
.do_interrupt = mb_cpu_do_interrupt,
.do_transaction_failed = mb_cpu_transaction_failed,
diff --git a/target/microblaze/helper.c b/target/microblaze/helper.c
index dd2aecd1d5..a607fe68e5 100644
--- a/target/microblaze/helper.c
+++ b/target/microblaze/helper.c
@@ -24,18 +24,7 @@
#include "qemu/host-utils.h"
#include "exec/log.h"
-#if defined(CONFIG_USER_ONLY)
-
-bool mb_cpu_tlb_fill(CPUState *cs, vaddr address, int size,
- MMUAccessType access_type, int mmu_idx,
- bool probe, uintptr_t retaddr)
-{
- cs->exception_index = 0xaa;
- cpu_loop_exit_restore(cs, retaddr);
-}
-
-#else /* !CONFIG_USER_ONLY */
-
+#ifndef CONFIG_USER_ONLY
static bool mb_cpu_access_is_secure(MicroBlazeCPU *cpu,
MMUAccessType access_type)
{
--
2.25.1
- [PATCH v6 10/66] linux-user/host/sparc: Populate host_signal.h, (continued)
- [PATCH v6 10/66] linux-user/host/sparc: Populate host_signal.h, Richard Henderson, 2021/10/30
- [PATCH v6 06/66] linux-user: Reorg handling for SIGSEGV, Richard Henderson, 2021/10/30
- [PATCH v6 11/66] linux-user/host/arm: Populate host_signal.h, Richard Henderson, 2021/10/30
- [PATCH v6 13/66] linux-user/host/s390: Populate host_signal.h, Richard Henderson, 2021/10/30
- [PATCH v6 07/66] linux-user/host/x86: Populate host_signal.h, Richard Henderson, 2021/10/30
- [PATCH v6 12/66] linux-user/host/aarch64: Populate host_signal.h, Richard Henderson, 2021/10/30
- [PATCH v6 09/66] linux-user/host/alpha: Populate host_signal.h, Richard Henderson, 2021/10/30
- [PATCH v6 14/66] linux-user/host/mips: Populate host_signal.h, Richard Henderson, 2021/10/30
- [PATCH v6 16/66] target/arm: Fixup comment re handle_cpu_signal, Richard Henderson, 2021/10/30
- [PATCH v6 24/66] target/cris: Make cris_cpu_tlb_fill sysemu only, Richard Henderson, 2021/10/30
- [PATCH v6 29/66] target/microblaze: Make mb_cpu_tlb_fill sysemu only,
Richard Henderson <=
- [PATCH v6 21/66] target/alpha: Implement alpha_cpu_record_sigsegv, Richard Henderson, 2021/10/30
- [PATCH v6 28/66] target/m68k: Make m68k_cpu_tlb_fill sysemu only, Richard Henderson, 2021/10/30
- [PATCH v6 34/66] target/ppc: Implement ppc_cpu_record_sigsegv, Richard Henderson, 2021/10/30
- [PATCH v6 27/66] target/i386: Implement x86_cpu_record_sigsegv, Richard Henderson, 2021/10/30
- [PATCH v6 35/66] target/riscv: Make riscv_cpu_tlb_fill sysemu only, Richard Henderson, 2021/10/30
- [PATCH v6 38/66] target/sh4: Make sh4_cpu_tlb_fill sysemu only, Richard Henderson, 2021/10/30
- [PATCH v6 39/66] target/sparc: Make sparc_cpu_tlb_fill sysemu only, Richard Henderson, 2021/10/30