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From: "Philippe Mathieu-Daudé" <philmd@linaro.org>
To: qemu-devel@nongnu.org
Cc: "Richard Henderson" <richard.henderson@linaro.org>,
	"Thomas Huth" <thuth@redhat.com>,
	qemu-arm@nongnu.org, qemu-ppc@nongnu.org, qemu-s390x@nongnu.org,
	"Paolo Bonzini" <pbonzini@redhat.com>,
	qemu-riscv@nongnu.org,
	"Philippe Mathieu-Daudé" <philmd@linaro.org>
Subject: [RFC PATCH v2 5/9] hw/core/cpu: Check for USER_ONLY definition instead of SOFTMMU one
Date: Tue,  6 Jun 2023 00:24:16 +0200	[thread overview]
Message-ID: <20230605222420.14776-6-philmd@linaro.org> (raw)
In-Reply-To: <20230605222420.14776-1-philmd@linaro.org>

Since we *might* have user emulation with softmmu,
replace the system emulation check by !user emulation one.

Invert the #ifdef'ry in TCGCPUOps structure for clarity.

Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
---
 include/hw/core/cpu.h         |   4 +-
 include/hw/core/tcg-cpu-ops.h | 102 +++++++++++++++++-----------------
 2 files changed, 53 insertions(+), 53 deletions(-)

diff --git a/include/hw/core/cpu.h b/include/hw/core/cpu.h
index 383456d1b3..f41b0c56f7 100644
--- a/include/hw/core/cpu.h
+++ b/include/hw/core/cpu.h
@@ -1014,7 +1014,7 @@ void page_size_init(void);
 
 #ifdef NEED_CPU_H
 
-#ifdef CONFIG_SOFTMMU
+#ifndef CONFIG_USER_ONLY
 
 extern const VMStateDescription vmstate_cpu_common;
 
@@ -1025,7 +1025,7 @@ extern const VMStateDescription vmstate_cpu_common;
     .flags = VMS_STRUCT,                                                    \
     .offset = 0,                                                            \
 }
-#endif /* CONFIG_SOFTMMU */
+#endif /* !CONFIG_USER_ONLY */
 
 #endif /* NEED_CPU_H */
 
diff --git a/include/hw/core/tcg-cpu-ops.h b/include/hw/core/tcg-cpu-ops.h
index 0ae08df47e..3e8b1b737a 100644
--- a/include/hw/core/tcg-cpu-ops.h
+++ b/include/hw/core/tcg-cpu-ops.h
@@ -64,7 +64,56 @@ struct TCGCPUOps {
      */
     void (*do_interrupt)(CPUState *cpu);
 #endif /* !CONFIG_USER_ONLY || !TARGET_I386 */
-#ifdef CONFIG_SOFTMMU
+#ifdef CONFIG_USER_ONLY
+    /**
+     * record_sigsegv:
+     * @cpu: cpu context
+     * @addr: faulting guest address
+     * @access_type: access was read/write/execute
+     * @maperr: true for invalid page, false for permission fault
+     * @ra: host pc for unwinding
+     *
+     * We are about to raise SIGSEGV with si_code set for @maperr,
+     * and si_addr set for @addr.  Record anything further needed
+     * for the signal ucontext_t.
+     *
+     * If the emulated kernel does not provide anything to the signal
+     * handler with anything besides the user context registers, and
+     * the siginfo_t, then this hook need do nothing and may be omitted.
+     * Otherwise, record the data and return; the caller will raise
+     * the signal, unwind the cpu state, and return to the main loop.
+     *
+     * If it is simpler to re-use the sysemu tlb_fill code, @ra is provided
+     * so that a "normal" cpu exception can be raised.  In this case,
+     * the signal must be raised by the architecture cpu_loop.
+     */
+    void (*record_sigsegv)(CPUState *cpu, vaddr addr,
+                           MMUAccessType access_type,
+                           bool maperr, uintptr_t ra);
+    /**
+     * record_sigbus:
+     * @cpu: cpu context
+     * @addr: misaligned guest address
+     * @access_type: access was read/write/execute
+     * @ra: host pc for unwinding
+     *
+     * We are about to raise SIGBUS with si_code BUS_ADRALN,
+     * and si_addr set for @addr.  Record anything further needed
+     * for the signal ucontext_t.
+     *
+     * If the emulated kernel does not provide the signal handler with
+     * anything besides the user context registers, and the siginfo_t,
+     * then this hook need do nothing and may be omitted.
+     * Otherwise, record the data and return; the caller will raise
+     * the signal, unwind the cpu state, and return to the main loop.
+     *
+     * If it is simpler to re-use the sysemu do_unaligned_access code,
+     * @ra is provided so that a "normal" cpu exception can be raised.
+     * In this case, the signal must be raised by the architecture cpu_loop.
+     */
+    void (*record_sigbus)(CPUState *cpu, vaddr addr,
+                          MMUAccessType access_type, uintptr_t ra);
+#else
     /** @cpu_exec_interrupt: Callback for processing interrupts in cpu_exec */
     bool (*cpu_exec_interrupt)(CPUState *cpu, int interrupt_request);
     /**
@@ -121,56 +170,7 @@ struct TCGCPUOps {
      */
     bool (*io_recompile_replay_branch)(CPUState *cpu,
                                        const TranslationBlock *tb);
-#else
-    /**
-     * record_sigsegv:
-     * @cpu: cpu context
-     * @addr: faulting guest address
-     * @access_type: access was read/write/execute
-     * @maperr: true for invalid page, false for permission fault
-     * @ra: host pc for unwinding
-     *
-     * We are about to raise SIGSEGV with si_code set for @maperr,
-     * and si_addr set for @addr.  Record anything further needed
-     * for the signal ucontext_t.
-     *
-     * If the emulated kernel does not provide anything to the signal
-     * handler with anything besides the user context registers, and
-     * the siginfo_t, then this hook need do nothing and may be omitted.
-     * Otherwise, record the data and return; the caller will raise
-     * the signal, unwind the cpu state, and return to the main loop.
-     *
-     * If it is simpler to re-use the sysemu tlb_fill code, @ra is provided
-     * so that a "normal" cpu exception can be raised.  In this case,
-     * the signal must be raised by the architecture cpu_loop.
-     */
-    void (*record_sigsegv)(CPUState *cpu, vaddr addr,
-                           MMUAccessType access_type,
-                           bool maperr, uintptr_t ra);
-    /**
-     * record_sigbus:
-     * @cpu: cpu context
-     * @addr: misaligned guest address
-     * @access_type: access was read/write/execute
-     * @ra: host pc for unwinding
-     *
-     * We are about to raise SIGBUS with si_code BUS_ADRALN,
-     * and si_addr set for @addr.  Record anything further needed
-     * for the signal ucontext_t.
-     *
-     * If the emulated kernel does not provide the signal handler with
-     * anything besides the user context registers, and the siginfo_t,
-     * then this hook need do nothing and may be omitted.
-     * Otherwise, record the data and return; the caller will raise
-     * the signal, unwind the cpu state, and return to the main loop.
-     *
-     * If it is simpler to re-use the sysemu do_unaligned_access code,
-     * @ra is provided so that a "normal" cpu exception can be raised.
-     * In this case, the signal must be raised by the architecture cpu_loop.
-     */
-    void (*record_sigbus)(CPUState *cpu, vaddr addr,
-                          MMUAccessType access_type, uintptr_t ra);
-#endif /* CONFIG_SOFTMMU */
+#endif /* !CONFIG_USER_ONLY */
 #endif /* NEED_CPU_H */
 
 };
-- 
2.38.1



  parent reply	other threads:[~2023-06-05 22:27 UTC|newest]

Thread overview: 18+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2023-06-05 22:24 [RFC PATCH v2 0/9] bulk: Replace CONFIG_SOFTMMU by !CONFIG_USER_ONLY/CONFIG_SYSTEM_ONLY Philippe Mathieu-Daudé
2023-06-05 22:24 ` [RFC PATCH v2 1/9] target/tricore: Remove pointless CONFIG_SOFTMMU guard Philippe Mathieu-Daudé
2023-06-06 14:45   ` Richard Henderson
2023-06-05 22:24 ` [RFC PATCH v2 2/9] target/i386: Check for USER_ONLY definition instead of SOFTMMU one Philippe Mathieu-Daudé
2023-06-06 14:47   ` Richard Henderson
2023-06-05 22:24 ` [RFC PATCH v2 3/9] target/m68k: " Philippe Mathieu-Daudé
2023-06-06 14:48   ` Richard Henderson
2023-06-05 22:24 ` [RFC PATCH v2 4/9] target/ppc: " Philippe Mathieu-Daudé
2023-06-06 14:49   ` Richard Henderson
2023-06-05 22:24 ` Philippe Mathieu-Daudé [this message]
2023-06-06 14:50   ` [RFC PATCH v2 5/9] hw/core/cpu: " Richard Henderson
2023-06-05 22:24 ` [RFC PATCH v2 6/9] accel/tcg: " Philippe Mathieu-Daudé
2023-06-06 14:51   ` Richard Henderson
2023-06-05 22:24 ` [RFC PATCH v2 7/9] meson: Alias CONFIG_SOFTMMU -> CONFIG_SYSTEM_ONLY Philippe Mathieu-Daudé
2023-06-05 22:24 ` [RFC PATCH v2 8/9] meson: Replace " Philippe Mathieu-Daudé
2023-06-05 22:24 ` [RFC PATCH v2 9/9] meson: Replace softmmu_ss -> system_ss Philippe Mathieu-Daudé
2023-06-06 14:54   ` Richard Henderson
2023-06-05 22:28 ` [RFC PATCH v2 0/9] bulk: Replace CONFIG_SOFTMMU by !CONFIG_USER_ONLY/CONFIG_SYSTEM_ONLY Philippe Mathieu-Daudé

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