From nobody Wed Apr 24 05:14:08 2024 Delivered-To: importer@patchew.org Received-SPF: pass (zoho.com: domain of gnu.org designates 208.118.235.17 as permitted sender) client-ip=208.118.235.17; envelope-from=qemu-devel-bounces+importer=patchew.org@nongnu.org; helo=lists.gnu.org; Authentication-Results: mx.zohomail.com; spf=pass (zoho.com: domain of gnu.org designates 208.118.235.17 as permitted sender) smtp.mailfrom=qemu-devel-bounces+importer=patchew.org@nongnu.org Return-Path: Received: from lists.gnu.org (208.118.235.17 [208.118.235.17]) by mx.zohomail.com with SMTPS id 1513315480973217.7951253709649; Thu, 14 Dec 2017 21:24:40 -0800 (PST) Received: from localhost ([::1]:44518 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1ePiU1-00069D-5h for importer@patchew.org; Fri, 15 Dec 2017 00:24:29 -0500 Received: from eggs.gnu.org ([2001:4830:134:3::10]:39326) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1ePiT8-0005on-8a for qemu-devel@nongnu.org; Fri, 15 Dec 2017 00:23:35 -0500 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1ePiT5-0002KZ-4p for qemu-devel@nongnu.org; Fri, 15 Dec 2017 00:23:34 -0500 Received: from ozlabs.ru ([107.173.13.209]:54712) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1ePiT4-0002J7-Vx for qemu-devel@nongnu.org; Fri, 15 Dec 2017 00:23:31 -0500 Received: from vpl1.ozlabs.ibm.com (localhost [IPv6:::1]) by ozlabs.ru (Postfix) with ESMTP id 7CDD03A60014; Fri, 15 Dec 2017 00:22:53 -0500 (EST) From: Alexey Kardashevskiy To: qemu-devel@nongnu.org Date: Fri, 15 Dec 2017 16:23:26 +1100 Message-Id: <20171215052326.21386-1-aik@ozlabs.ru> X-Mailer: git-send-email 2.11.0 X-detected-operating-system: by eggs.gnu.org: GNU/Linux 3.x [fuzzy] X-Received-From: 107.173.13.209 Subject: [Qemu-devel] [PATCH qemu v2] kvm: Add kvm_set_user_memory tracepoint X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.21 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Alexey Kardashevskiy Errors-To: qemu-devel-bounces+importer=patchew.org@nongnu.org Sender: "Qemu-devel" X-ZohoMail: RSF_0 Z_629925259 SPT_0 Content-Transfer-Encoding: quoted-printable MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" This adds a tracepoint to trace the KVM_SET_USER_MEMORY_REGION ioctl parameters which is quite useful for debugging VFIO memory regions being actually registered with KVM. Signed-off-by: Alexey Kardashevskiy Reviewed-by: Darren Kenny --- Changes: v2: * added forgotten change to trace-events --- accel/kvm/kvm-all.c | 6 +++++- accel/kvm/trace-events | 1 + 2 files changed, 6 insertions(+), 1 deletion(-) diff --git a/accel/kvm/kvm-all.c b/accel/kvm/kvm-all.c index f290f48..b91fcb7 100644 --- a/accel/kvm/kvm-all.c +++ b/accel/kvm/kvm-all.c @@ -235,6 +235,7 @@ static int kvm_set_user_memory_region(KVMMemoryListener= *kml, KVMSlot *slot) { KVMState *s =3D kvm_state; struct kvm_userspace_memory_region mem; + int ret; =20 mem.slot =3D slot->slot | (kml->as_id << 16); mem.guest_phys_addr =3D slot->start_addr; @@ -248,7 +249,10 @@ static int kvm_set_user_memory_region(KVMMemoryListene= r *kml, KVMSlot *slot) kvm_vm_ioctl(s, KVM_SET_USER_MEMORY_REGION, &mem); } mem.memory_size =3D slot->memory_size; - return kvm_vm_ioctl(s, KVM_SET_USER_MEMORY_REGION, &mem); + ret =3D kvm_vm_ioctl(s, KVM_SET_USER_MEMORY_REGION, &mem); + trace_kvm_set_user_memory(mem.slot, mem.flags, mem.guest_phys_addr, + mem.memory_size, mem.userspace_addr, ret); + return ret; } =20 int kvm_destroy_vcpu(CPUState *cpu) diff --git a/accel/kvm/trace-events b/accel/kvm/trace-events index f89ba55..58e98ef 100644 --- a/accel/kvm/trace-events +++ b/accel/kvm/trace-events @@ -12,4 +12,5 @@ kvm_irqchip_commit_routes(void) "" kvm_irqchip_add_msi_route(char *name, int vector, int virq) "dev %s vector= %d virq %d" kvm_irqchip_update_msi_route(int virq) "Updating MSI route virq=3D%d" kvm_irqchip_release_virq(int virq) "virq %d" +kvm_set_user_memory(uint32_t slot, uint32_t flags, uint64_t guest_phys_add= r, uint64_t memory_size, uint64_t userspace_addr, int ret) "Slot#%d flags= =3D0x%x gpa=3D0x%"PRIx64 " size=3D0x%"PRIx64 " ua=3D0x%"PRIx64 " ret=3D%d" =20 --=20 2.11.0