From nobody Wed Nov 27 05:36:43 2024 Delivered-To: importer@patchew.org Received-SPF: pass (zohomail.com: domain of lists.xenproject.org designates 192.237.175.120 as permitted sender) client-ip=192.237.175.120; envelope-from=xen-devel-bounces@lists.xenproject.org; helo=lists.xenproject.org; Authentication-Results: mx.zohomail.com; dkim=pass; spf=pass (zohomail.com: domain of lists.xenproject.org designates 192.237.175.120 as permitted sender) smtp.mailfrom=xen-devel-bounces@lists.xenproject.org; dmarc=pass(p=none dis=none) header.from=redhat.com ARC-Seal: i=1; a=rsa-sha256; t=1701293227; cv=none; d=zohomail.com; s=zohoarc; b=cXuGfmKfK4vcODQPrdoSwmtp1/Iu/hSzKb61UrPKf8MTkOhB8NkHjcTWLAkwItXeasPBpHPaPiS+aRRFkdWBwKiuZ2Q7QPRdf8FK7n2B7awhhJPINegGTkaGjtyvnIYsnlWkte95R/Vk+67uzO66UIqF9DaEiMk+v9nKlISwRAc= ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=zohomail.com; s=zohoarc; t=1701293227; h=Content-Transfer-Encoding:Cc:Cc:Date:Date:From:From:In-Reply-To:List-Subscribe:List-Post:List-Id:List-Help:List-Unsubscribe:MIME-Version:Message-ID:References:Sender:Subject:Subject:To:To:Message-Id:Reply-To; bh=aRXyTaHypebwyOUnVd682fvvQLv7a/HZq8MmldgnYg0=; b=TvXHqwoPht4s6woDdsApqUEM++ftPJltnh34kpWHEMKJtTh+GgVbP8xWQg0/zldG+9X50AfbZhnt3dZpSXF8sIejPbUyoIT0fcGpC0+evO8bLaGjW3rZj15VWdDbPt0dzLzncbwcfx2ZfgGDS3SO8zAQ0gb6OwxoVvofP/pnQtA= ARC-Authentication-Results: i=1; mx.zohomail.com; dkim=pass; spf=pass (zohomail.com: domain of lists.xenproject.org designates 192.237.175.120 as permitted sender) smtp.mailfrom=xen-devel-bounces@lists.xenproject.org; dmarc=pass header.from= (p=none dis=none) Return-Path: Received: from lists.xenproject.org (lists.xenproject.org [192.237.175.120]) by mx.zohomail.com with SMTPS id 1701293227616390.96684461805137; Wed, 29 Nov 2023 13:27:07 -0800 (PST) Received: from list by lists.xenproject.org with outflank-mailman.644248.1005062 (Exim 4.92) (envelope-from ) id 1r8S53-0000Tq-S5; Wed, 29 Nov 2023 21:26:49 +0000 Received: by outflank-mailman (output) from mailman id 644248.1005062; Wed, 29 Nov 2023 21:26:49 +0000 Received: from localhost ([127.0.0.1] helo=lists.xenproject.org) by lists.xenproject.org with esmtp (Exim 4.92) (envelope-from ) id 1r8S53-0000Tj-NK; Wed, 29 Nov 2023 21:26:49 +0000 Received: by outflank-mailman (input) for mailman id 644248; Wed, 29 Nov 2023 21:26:48 +0000 Received: from se1-gles-sth1-in.inumbo.com ([159.253.27.254] helo=se1-gles-sth1.inumbo.com) by lists.xenproject.org with esmtp (Exim 4.92) (envelope-from ) id 1r8S52-00008d-SH for xen-devel@lists.xenproject.org; Wed, 29 Nov 2023 21:26:48 +0000 Received: from us-smtp-delivery-124.mimecast.com (us-smtp-delivery-124.mimecast.com [170.10.133.124]) by se1-gles-sth1.inumbo.com (Halon) with ESMTPS id 000d1d83-8efe-11ee-98e4-6d05b1d4d9a1; Wed, 29 Nov 2023 22:26:48 +0100 (CET) Received: from mimecast-mx02.redhat.com (mimecast-mx02.redhat.com [66.187.233.88]) by relay.mimecast.com with ESMTP with STARTTLS (version=TLSv1.3, cipher=TLS_AES_256_GCM_SHA384) id us-mta-342-VPB8p9y3P4KteZhh_p8yNg-1; Wed, 29 Nov 2023 16:26:44 -0500 Received: from smtp.corp.redhat.com (int-mx06.intmail.prod.int.rdu2.redhat.com [10.11.54.6]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (2048 bits) server-digest SHA256) (No client certificate requested) by mimecast-mx02.redhat.com (Postfix) with ESMTPS id 58F31836EF1; Wed, 29 Nov 2023 21:26:38 +0000 (UTC) Received: from localhost (unknown [10.39.192.91]) by smtp.corp.redhat.com (Postfix) with ESMTP id 01B912166B26; Wed, 29 Nov 2023 21:26:36 +0000 (UTC) X-Outflank-Mailman: Message body and most headers restored to incoming version X-BeenThere: xen-devel@lists.xenproject.org List-Id: Xen developer discussion List-Unsubscribe: , List-Post: List-Help: List-Subscribe: , Errors-To: xen-devel-bounces@lists.xenproject.org Precedence: list Sender: "Xen-devel" X-Inumbo-ID: 000d1d83-8efe-11ee-98e4-6d05b1d4d9a1 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1701293206; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=aRXyTaHypebwyOUnVd682fvvQLv7a/HZq8MmldgnYg0=; b=Iy2QWiMAD+l3+xKeZd10nLBnrq/p1GjcjyjesLFNyIY8mNKwmmo7HMVH68x9ExwU10PcXI tqbkbiyKXRXiSU/MY1vEpJ4prQeA/jcvPZ1PhWjo+OsXxXhTOEr6db1+W+S7vrwddsBCLb LvsG2MUd0fMGwfT+bWDK6PiGtiVk/Zs= X-MC-Unique: VPB8p9y3P4KteZhh_p8yNg-1 From: Stefan Hajnoczi To: qemu-devel@nongnu.org Cc: Jean-Christophe Dubois , Fabiano Rosas , qemu-s390x@nongnu.org, Song Gao , Marcel Apfelbaum , Thomas Huth , Hyman Huang , Marcelo Tosatti , David Woodhouse , Andrey Smirnov , Peter Maydell , Kevin Wolf , Ilya Leoshkevich , Artyom Tarasenko , Mark Cave-Ayland , Max Filippov , Alistair Francis , Paul Durrant , Jagannathan Raman , Juan Quintela , =?UTF-8?q?Daniel=20P=2E=20Berrang=C3=A9?= , qemu-arm@nongnu.org, Jason Wang , Gerd Hoffmann , Hanna Reitz , =?UTF-8?q?Marc-Andr=C3=A9=20Lureau?= , BALATON Zoltan , Daniel Henrique Barboza , Elena Ufimtseva , Aurelien Jarno , Hailiang Zhang , Roman Bolshakov , Huacai Chen , Fam Zheng , Eric Blake , Jiri Slaby , Alexander Graf , Liu Zhiwei , Weiwei Li , Eric Farman , Stafford Horne , David Hildenbrand , Markus Armbruster , Reinoud Zandijk , Palmer Dabbelt , Cameron Esfahani , xen-devel@lists.xenproject.org, Pavel Dovgalyuk , qemu-riscv@nongnu.org, Aleksandar Rikalo , John Snow , Sunil Muthuswamy , Michael Roth , David Gibson , "Michael S. Tsirkin" , Richard Henderson , Bin Meng , Stefano Stabellini , kvm@vger.kernel.org, Stefan Hajnoczi , qemu-block@nongnu.org, Halil Pasic , Peter Xu , Anthony Perard , Harsh Prateek Bora , =?UTF-8?q?Alex=20Benn=C3=A9e?= , Eduardo Habkost , Paolo Bonzini , Vladimir Sementsov-Ogievskiy , =?UTF-8?q?C=C3=A9dric=20Le=20Goater?= , qemu-ppc@nongnu.org, =?UTF-8?q?Philippe=20Mathieu-Daud=C3=A9?= , Christian Borntraeger , Akihiko Odaki , Leonardo Bras , Nicholas Piggin , Jiaxun Yang Subject: [PATCH 2/6] qemu/main-loop: rename QEMU_IOTHREAD_LOCK_GUARD to QEMU_BQL_LOCK_GUARD Date: Wed, 29 Nov 2023 16:26:21 -0500 Message-ID: <20231129212625.1051502-3-stefanha@redhat.com> In-Reply-To: <20231129212625.1051502-1-stefanha@redhat.com> References: <20231129212625.1051502-1-stefanha@redhat.com> MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable X-Scanned-By: MIMEDefang 3.4.1 on 10.11.54.6 X-ZohoMail-DKIM: pass (identity @redhat.com) X-ZM-MESSAGEID: 1701293228789000004 Content-Type: text/plain; charset="utf-8" The name "iothread" is overloaded. Use the term Big QEMU Lock (BQL) instead, it is already widely used and unambiguous. Signed-off-by: Stefan Hajnoczi Acked-by: David Woodhouse Acked-by: Ilya Leoshkevich Reviewed-by: C=C3=A9dric Le Goater Reviewed-by: Paul Durrant --- include/qemu/main-loop.h | 20 ++++++++++---------- hw/i386/kvm/xen_evtchn.c | 14 +++++++------- hw/i386/kvm/xen_gnttab.c | 2 +- hw/mips/mips_int.c | 2 +- hw/ppc/ppc.c | 2 +- target/i386/kvm/xen-emu.c | 2 +- target/ppc/excp_helper.c | 2 +- target/ppc/helper_regs.c | 2 +- target/riscv/cpu_helper.c | 4 ++-- 9 files changed, 25 insertions(+), 25 deletions(-) diff --git a/include/qemu/main-loop.h b/include/qemu/main-loop.h index d6f75e57bd..0b6a3e4824 100644 --- a/include/qemu/main-loop.h +++ b/include/qemu/main-loop.h @@ -344,13 +344,13 @@ void qemu_bql_lock_impl(const char *file, int line); void qemu_bql_unlock(void); =20 /** - * QEMU_IOTHREAD_LOCK_GUARD + * QEMU_BQL_LOCK_GUARD * - * Wrap a block of code in a conditional qemu_mutex_{lock,unlock}_iothread. + * Wrap a block of code in a conditional qemu_bql_{lock,unlock}. */ -typedef struct IOThreadLockAuto IOThreadLockAuto; +typedef struct BQLLockAuto BQLLockAuto; =20 -static inline IOThreadLockAuto *qemu_iothread_auto_lock(const char *file, +static inline BQLLockAuto *qemu_bql_auto_lock(const char *file, int line) { if (qemu_bql_locked()) { @@ -358,19 +358,19 @@ static inline IOThreadLockAuto *qemu_iothread_auto_lo= ck(const char *file, } qemu_bql_lock_impl(file, line); /* Anything non-NULL causes the cleanup function to be called */ - return (IOThreadLockAuto *)(uintptr_t)1; + return (BQLLockAuto *)(uintptr_t)1; } =20 -static inline void qemu_iothread_auto_unlock(IOThreadLockAuto *l) +static inline void qemu_bql_auto_unlock(BQLLockAuto *l) { qemu_bql_unlock(); } =20 -G_DEFINE_AUTOPTR_CLEANUP_FUNC(IOThreadLockAuto, qemu_iothread_auto_unlock) +G_DEFINE_AUTOPTR_CLEANUP_FUNC(BQLLockAuto, qemu_bql_auto_unlock) =20 -#define QEMU_IOTHREAD_LOCK_GUARD() \ - g_autoptr(IOThreadLockAuto) _iothread_lock_auto __attribute__((unused)= ) \ - =3D qemu_iothread_auto_lock(__FILE__, __LINE__) +#define QEMU_BQL_LOCK_GUARD() \ + g_autoptr(BQLLockAuto) _bql_lock_auto __attribute__((unused)) \ + =3D qemu_bql_auto_lock(__FILE__, __LINE__) =20 /* * qemu_cond_wait_iothread: Wait on condition for the main loop mutex diff --git a/hw/i386/kvm/xen_evtchn.c b/hw/i386/kvm/xen_evtchn.c index 07d0ff0253..3ab686bd79 100644 --- a/hw/i386/kvm/xen_evtchn.c +++ b/hw/i386/kvm/xen_evtchn.c @@ -1127,7 +1127,7 @@ int xen_evtchn_reset_op(struct evtchn_reset *reset) return -ESRCH; } =20 - QEMU_IOTHREAD_LOCK_GUARD(); + QEMU_BQL_LOCK_GUARD(); return xen_evtchn_soft_reset(); } =20 @@ -1145,7 +1145,7 @@ int xen_evtchn_close_op(struct evtchn_close *close) return -EINVAL; } =20 - QEMU_IOTHREAD_LOCK_GUARD(); + QEMU_BQL_LOCK_GUARD(); qemu_mutex_lock(&s->port_lock); =20 ret =3D close_port(s, close->port, &flush_kvm_routes); @@ -1272,7 +1272,7 @@ int xen_evtchn_bind_pirq_op(struct evtchn_bind_pirq *= pirq) return -EINVAL; } =20 - QEMU_IOTHREAD_LOCK_GUARD(); + QEMU_BQL_LOCK_GUARD(); =20 if (s->pirq[pirq->pirq].port) { return -EBUSY; @@ -1824,7 +1824,7 @@ int xen_physdev_map_pirq(struct physdev_map_pirq *map) return -ENOTSUP; } =20 - QEMU_IOTHREAD_LOCK_GUARD(); + QEMU_BQL_LOCK_GUARD(); QEMU_LOCK_GUARD(&s->port_lock); =20 if (map->domid !=3D DOMID_SELF && map->domid !=3D xen_domid) { @@ -1884,7 +1884,7 @@ int xen_physdev_unmap_pirq(struct physdev_unmap_pirq = *unmap) return -EINVAL; } =20 - QEMU_IOTHREAD_LOCK_GUARD(); + QEMU_BQL_LOCK_GUARD(); qemu_mutex_lock(&s->port_lock); =20 if (!pirq_inuse(s, pirq)) { @@ -1924,7 +1924,7 @@ int xen_physdev_eoi_pirq(struct physdev_eoi *eoi) return -ENOTSUP; } =20 - QEMU_IOTHREAD_LOCK_GUARD(); + QEMU_BQL_LOCK_GUARD(); QEMU_LOCK_GUARD(&s->port_lock); =20 if (!pirq_inuse(s, pirq)) { @@ -1956,7 +1956,7 @@ int xen_physdev_query_pirq(struct physdev_irq_status_= query *query) return -ENOTSUP; } =20 - QEMU_IOTHREAD_LOCK_GUARD(); + QEMU_BQL_LOCK_GUARD(); QEMU_LOCK_GUARD(&s->port_lock); =20 if (!pirq_inuse(s, pirq)) { diff --git a/hw/i386/kvm/xen_gnttab.c b/hw/i386/kvm/xen_gnttab.c index 0a24f53f20..ee5f8cf257 100644 --- a/hw/i386/kvm/xen_gnttab.c +++ b/hw/i386/kvm/xen_gnttab.c @@ -176,7 +176,7 @@ int xen_gnttab_map_page(uint64_t idx, uint64_t gfn) return -EINVAL; } =20 - QEMU_IOTHREAD_LOCK_GUARD(); + QEMU_BQL_LOCK_GUARD(); QEMU_LOCK_GUARD(&s->gnt_lock); =20 xen_overlay_do_map_page(&s->gnt_aliases[idx], gpa); diff --git a/hw/mips/mips_int.c b/hw/mips/mips_int.c index 6c32e466a3..c2454f9724 100644 --- a/hw/mips/mips_int.c +++ b/hw/mips/mips_int.c @@ -36,7 +36,7 @@ static void cpu_mips_irq_request(void *opaque, int irq, i= nt level) return; } =20 - QEMU_IOTHREAD_LOCK_GUARD(); + QEMU_BQL_LOCK_GUARD(); =20 if (level) { env->CP0_Cause |=3D 1 << (irq + CP0Ca_IP); diff --git a/hw/ppc/ppc.c b/hw/ppc/ppc.c index c8c3b43602..ce7d3692c4 100644 --- a/hw/ppc/ppc.c +++ b/hw/ppc/ppc.c @@ -47,7 +47,7 @@ void ppc_set_irq(PowerPCCPU *cpu, int irq, int level) unsigned int old_pending; =20 /* We may already have the BQL if coming from the reset path */ - QEMU_IOTHREAD_LOCK_GUARD(); + QEMU_BQL_LOCK_GUARD(); =20 old_pending =3D env->pending_interrupts; =20 diff --git a/target/i386/kvm/xen-emu.c b/target/i386/kvm/xen-emu.c index f79f5d270f..be8a1fef58 100644 --- a/target/i386/kvm/xen-emu.c +++ b/target/i386/kvm/xen-emu.c @@ -581,7 +581,7 @@ static int xen_set_shared_info(uint64_t gfn) uint64_t gpa =3D gfn << TARGET_PAGE_BITS; int i, err; =20 - QEMU_IOTHREAD_LOCK_GUARD(); + QEMU_BQL_LOCK_GUARD(); =20 /* * The xen_overlay device tells KVM about it too, since it had to diff --git a/target/ppc/excp_helper.c b/target/ppc/excp_helper.c index 0a1c942831..2122f89990 100644 --- a/target/ppc/excp_helper.c +++ b/target/ppc/excp_helper.c @@ -2222,7 +2222,7 @@ static int ppc_next_unmasked_interrupt(CPUPPCState *e= nv) void ppc_maybe_interrupt(CPUPPCState *env) { CPUState *cs =3D env_cpu(env); - QEMU_IOTHREAD_LOCK_GUARD(); + QEMU_BQL_LOCK_GUARD(); =20 if (ppc_next_unmasked_interrupt(env)) { cpu_interrupt(cs, CPU_INTERRUPT_HARD); diff --git a/target/ppc/helper_regs.c b/target/ppc/helper_regs.c index f380342d4d..b92e3a223a 100644 --- a/target/ppc/helper_regs.c +++ b/target/ppc/helper_regs.c @@ -244,7 +244,7 @@ void cpu_interrupt_exittb(CPUState *cs) * unless running with TCG. */ if (tcg_enabled()) { - QEMU_IOTHREAD_LOCK_GUARD(); + QEMU_BQL_LOCK_GUARD(); cpu_interrupt(cs, CPU_INTERRUPT_EXITTB); } } diff --git a/target/riscv/cpu_helper.c b/target/riscv/cpu_helper.c index e7e23b34f4..fa73bb8ce9 100644 --- a/target/riscv/cpu_helper.c +++ b/target/riscv/cpu_helper.c @@ -655,7 +655,7 @@ void riscv_cpu_interrupt(CPURISCVState *env) uint64_t gein, vsgein =3D 0, vstip =3D 0, irqf =3D 0; CPUState *cs =3D env_cpu(env); =20 - QEMU_IOTHREAD_LOCK_GUARD(); + QEMU_BQL_LOCK_GUARD(); =20 if (env->virt_enabled) { gein =3D get_field(env->hstatus, HSTATUS_VGEIN); @@ -681,7 +681,7 @@ uint64_t riscv_cpu_update_mip(CPURISCVState *env, uint6= 4_t mask, uint64_t value) /* No need to update mip for VSTIP */ mask =3D ((mask =3D=3D MIP_VSTIP) && env->vstime_irq) ? 0 : mask; =20 - QEMU_IOTHREAD_LOCK_GUARD(); + QEMU_BQL_LOCK_GUARD(); =20 env->mip =3D (env->mip & ~mask) | (value & mask); =20 --=20 2.42.0