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[83.50.83.154]) by smtp.gmail.com with ESMTPSA id c17sm32065905pfv.68.2022.02.03.11.19.46 (version=TLS1_3 cipher=TLS_CHACHA20_POLY1305_SHA256 bits=256/256); Thu, 03 Feb 2022 11:19:47 -0800 (PST) To: qemu-devel@nongnu.org Cc: Richard Henderson , Thomas Huth , Paolo Bonzini , =?utf-8?q?Philippe_Mathieu-Daud=C3=A9?= Subject: [PATCH v2 11/21] accel: Introduce AccelOpsClass::cpus_are_resettable() Date: Thu, 3 Feb 2022 20:18:04 +0100 Message-Id: <20220203191814.45023-12-f4bug@amsat.org> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20220203191814.45023-1-f4bug@amsat.org> References: <20220203191814.45023-1-f4bug@amsat.org> MIME-Version: 1.0 X-Host-Lookup-Failed: Reverse DNS lookup failed for 2607:f8b0:4864:20::42c (failed) Received-SPF: pass client-ip=2607:f8b0:4864:20::42c; envelope-from=philippe.mathieu.daude@gmail.com; helo=mail-pf1-x42c.google.com X-Spam_score_int: -6 X-Spam_score: -0.7 X-Spam_bar: / X-Spam_report: (-0.7 / 5.0 requ) BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_EF=-0.1, FREEMAIL_FORGED_FROMDOMAIN=0.249, FREEMAIL_FROM=0.001, HEADER_FROM_DIFFERENT_DOMAINS=0.25, PDS_HP_HELO_NORDNS=0.001, RCVD_IN_DNSWL_NONE=-0.0001, RDNS_NONE=0.793, SPF_HELO_NONE=0.001, SPF_PASS=-0.001, T_SCC_BODY_TEXT_LINE=-0.01 autolearn=no autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Sender: "Qemu-devel" Reply-to: =?utf-8?q?Philippe_Mathieu-Daud=C3=A9?= X-Patchwork-Original-From: =?utf-8?q?Philippe_Mathieu-Daud=C3=A9?= via From: =?utf-8?q?Philippe_Mathieu-Daud=C3=A9?= Add cpus_are_resettable() to AccelOps, and implement it for the KVM accelerator. Suggested-by: Richard Henderson Signed-off-by: Philippe Mathieu-Daudé Reviewed-by: Richard Henderson --- accel/kvm/kvm-accel-ops.c | 6 ++++++ include/sysemu/accel-ops.h | 2 ++ include/sysemu/hw_accel.h | 5 ----- softmmu/cpus.c | 5 ++++- 4 files changed, 12 insertions(+), 6 deletions(-) diff --git a/accel/kvm/kvm-accel-ops.c b/accel/kvm/kvm-accel-ops.c index 95b7b08020..cd4d4a06a7 100644 --- a/accel/kvm/kvm-accel-ops.c +++ b/accel/kvm/kvm-accel-ops.c @@ -79,12 +79,18 @@ static bool kvm_vcpu_thread_is_idle(CPUState *cpu) return !kvm_halt_in_kernel(); } +static bool kvm_cpus_are_resettable(void) +{ + return kvm_enabled() ? kvm_cpu_check_are_resettable() : true; +} + static void kvm_accel_ops_class_init(ObjectClass *oc, void *data) { AccelOpsClass *ops = ACCEL_OPS_CLASS(oc); ops->create_vcpu_thread = kvm_start_vcpu_thread; ops->cpu_thread_is_idle = kvm_vcpu_thread_is_idle; + ops->cpus_are_resettable = kvm_cpus_are_resettable; ops->synchronize_post_reset = kvm_cpu_synchronize_post_reset; ops->synchronize_post_init = kvm_cpu_synchronize_post_init; ops->synchronize_state = kvm_cpu_synchronize_state; diff --git a/include/sysemu/accel-ops.h b/include/sysemu/accel-ops.h index 50c72540c7..6013c9444c 100644 --- a/include/sysemu/accel-ops.h +++ b/include/sysemu/accel-ops.h @@ -28,6 +28,8 @@ struct AccelOpsClass { /* initialization function called when accel is chosen */ void (*ops_init)(AccelOpsClass *ops); + bool (*cpus_are_resettable)(void); + void (*create_vcpu_thread)(CPUState *cpu); /* MANDATORY NON-NULL */ void (*kick_vcpu_thread)(CPUState *cpu); bool (*cpu_thread_is_idle)(CPUState *cpu); diff --git a/include/sysemu/hw_accel.h b/include/sysemu/hw_accel.h index 01b5ebf442..22903a55f7 100644 --- a/include/sysemu/hw_accel.h +++ b/include/sysemu/hw_accel.h @@ -23,9 +23,4 @@ void cpu_synchronize_post_reset(CPUState *cpu); void cpu_synchronize_post_init(CPUState *cpu); void cpu_synchronize_pre_loadvm(CPUState *cpu); -static inline bool cpu_check_are_resettable(void) -{ - return kvm_enabled() ? kvm_cpu_check_are_resettable() : true; -} - #endif /* QEMU_HW_ACCEL_H */ diff --git a/softmmu/cpus.c b/softmmu/cpus.c index 5b0bcb8c65..79e7d7a608 100644 --- a/softmmu/cpus.c +++ b/softmmu/cpus.c @@ -199,7 +199,10 @@ void cpu_synchronize_pre_loadvm(CPUState *cpu) bool cpus_are_resettable(void) { - return cpu_check_are_resettable(); + if (cpus_accel->cpus_are_resettable) { + return cpus_accel->cpus_are_resettable(); + } + return true; } int64_t cpus_get_virtual_clock(void)