From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mgamail.intel.com (mgamail.intel.com [198.175.65.21]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 21960274657 for ; Tue, 20 May 2025 10:29:15 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=198.175.65.21 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1747736957; cv=none; b=mxZQGmOu25vpU7piuYG4XnjT5XA6WzUXyxtz1b9CmLVE3sQ2zrFDPRbGEoyoqp3xWlT8JIcDX3FxPXGPIbx3c4CT8XB3fFMSvLzTdQkhRw2f2YTnqlPEysF5W3lrzFkry5jlEub6VflIsrp//zhEEt5mHVsjWPsLvpEnwk5Bt4k= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1747736957; c=relaxed/simple; bh=buapM487lyBcGcvGhevWysjMWOzzKGFo5Q7pkxmvxGQ=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=JLfP/9b7AzS7elIzxv3fnd5/a+5LMb4V0PVv0Kav3PVPDrnj0jRtvodU8jXbbUK8uMrGCSTNjCaCxkUz3f1FrGohnw+hZLYNae27OhKEBaPL31j8FrwXDRBRA01V1U8pEttyJP97cvRgEHlJZk4dQYiELVMNI3MQHIUrvwc5ouk= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=intel.com; spf=pass smtp.mailfrom=intel.com; dkim=pass (2048-bit key) header.d=intel.com header.i=@intel.com header.b=UJCu4yjB; arc=none smtp.client-ip=198.175.65.21 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=intel.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=intel.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=intel.com header.i=@intel.com header.b="UJCu4yjB" DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1747736956; x=1779272956; h=from:to:cc:subject:date:message-id:in-reply-to: references:mime-version:content-transfer-encoding; bh=buapM487lyBcGcvGhevWysjMWOzzKGFo5Q7pkxmvxGQ=; b=UJCu4yjBk8TMEhcEilqi2m1b9TF5coMiy8Q75E+6n9bCz2vk9c+Dwy+W 1gIMbcQ+g/pVhmYtSPca8uzNaKF715Lhv5pkFwbruhkZteZ4LwPidSIw+ QObHGcvBiTbmaBCrIecinjw+01Nq9QtbinuiTCaw32jse3SkkhbOutWOY sUp5DFXtjP9SLI2Y6LjsM90eSJEiDaYmDLQN0FnXbTGO2bBeliTaumbCq zq1nAj8iamlR33/1T1iHrcFibsAy+pr4RPgFSq4CL3hq3tr+DY1128mhU qdrT4LsD5ukniXJypSIQa42afp4HQGyF0jalLK8jR1VxOToGdk+gsk+fL Q==; X-CSE-ConnectionGUID: Q01epWCyR66hXZF5NM2IGg== X-CSE-MsgGUID: qw2yQkc+RA2IDTBe7ZvN/g== X-IronPort-AV: E=McAfee;i="6700,10204,11438"; a="49566644" X-IronPort-AV: E=Sophos;i="6.15,302,1739865600"; d="scan'208";a="49566644" Received: from fmviesa004.fm.intel.com ([10.60.135.144]) by orvoesa113.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 20 May 2025 03:29:15 -0700 X-CSE-ConnectionGUID: SniMQfG3Tni8orlthbbS6w== X-CSE-MsgGUID: GlW27O+sRKO/XpL45zkNfg== X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="6.15,302,1739865600"; d="scan'208";a="144905239" Received: from emr-bkc.sh.intel.com ([10.112.230.82]) by fmviesa004-auth.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 20 May 2025 03:29:11 -0700 From: Chenyi Qiang To: David Hildenbrand , Alexey Kardashevskiy , Peter Xu , Gupta Pankaj , Paolo Bonzini , =?UTF-8?q?Philippe=20Mathieu-Daud=C3=A9?= , Michael Roth Cc: Chenyi Qiang , qemu-devel@nongnu.org, kvm@vger.kernel.org, Williams Dan J , Zhao Liu , Baolu Lu , Gao Chao , Xu Yilun , Li Xiaoyao Subject: [PATCH v5 03/10] memory: Unify the definiton of ReplayRamPopulate() and ReplayRamDiscard() Date: Tue, 20 May 2025 18:28:43 +0800 Message-ID: <20250520102856.132417-4-chenyi.qiang@intel.com> X-Mailer: git-send-email 2.43.5 In-Reply-To: <20250520102856.132417-1-chenyi.qiang@intel.com> References: <20250520102856.132417-1-chenyi.qiang@intel.com> Precedence: bulk X-Mailing-List: kvm@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Update ReplayRamDiscard() function to return the result and unify the ReplayRamPopulate() and ReplayRamDiscard() to ReplayRamDiscardState() at the same time due to their identical definitions. This unification simplifies related structures, such as VirtIOMEMReplayData, which makes it cleaner. Signed-off-by: Chenyi Qiang --- Changes in v5: - Rename ReplayRamStateChange to ReplayRamDiscardState (David) - return data->fn(s, data->opaque) instead of 0 in virtio_mem_rdm_replay_discarded_cb(). (Alexey) Changes in v4: - Modify the commit message. We won't use Replay() operation when doing the attribute change like v3. Changes in v3: - Newly added. --- hw/virtio/virtio-mem.c | 21 ++++++++++----------- include/system/memory.h | 36 +++++++++++++++++++----------------- migration/ram.c | 5 +++-- system/memory.c | 12 ++++++------ 4 files changed, 38 insertions(+), 36 deletions(-) diff --git a/hw/virtio/virtio-mem.c b/hw/virtio/virtio-mem.c index 2e491e8c44..c46f6f9c3e 100644 --- a/hw/virtio/virtio-mem.c +++ b/hw/virtio/virtio-mem.c @@ -1732,7 +1732,7 @@ static bool virtio_mem_rdm_is_populated(const RamDiscardManager *rdm, } struct VirtIOMEMReplayData { - void *fn; + ReplayRamDiscardState fn; void *opaque; }; @@ -1740,12 +1740,12 @@ static int virtio_mem_rdm_replay_populated_cb(MemoryRegionSection *s, void *arg) { struct VirtIOMEMReplayData *data = arg; - return ((ReplayRamPopulate)data->fn)(s, data->opaque); + return data->fn(s, data->opaque); } static int virtio_mem_rdm_replay_populated(const RamDiscardManager *rdm, MemoryRegionSection *s, - ReplayRamPopulate replay_fn, + ReplayRamDiscardState replay_fn, void *opaque) { const VirtIOMEM *vmem = VIRTIO_MEM(rdm); @@ -1764,14 +1764,13 @@ static int virtio_mem_rdm_replay_discarded_cb(MemoryRegionSection *s, { struct VirtIOMEMReplayData *data = arg; - ((ReplayRamDiscard)data->fn)(s, data->opaque); - return 0; + return data->fn(s, data->opaque); } -static void virtio_mem_rdm_replay_discarded(const RamDiscardManager *rdm, - MemoryRegionSection *s, - ReplayRamDiscard replay_fn, - void *opaque) +static int virtio_mem_rdm_replay_discarded(const RamDiscardManager *rdm, + MemoryRegionSection *s, + ReplayRamDiscardState replay_fn, + void *opaque) { const VirtIOMEM *vmem = VIRTIO_MEM(rdm); struct VirtIOMEMReplayData data = { @@ -1780,8 +1779,8 @@ static void virtio_mem_rdm_replay_discarded(const RamDiscardManager *rdm, }; g_assert(s->mr == &vmem->memdev->mr); - virtio_mem_for_each_unplugged_section(vmem, s, &data, - virtio_mem_rdm_replay_discarded_cb); + return virtio_mem_for_each_unplugged_section(vmem, s, &data, + virtio_mem_rdm_replay_discarded_cb); } static void virtio_mem_rdm_register_listener(RamDiscardManager *rdm, diff --git a/include/system/memory.h b/include/system/memory.h index 896948deb1..83b28551c4 100644 --- a/include/system/memory.h +++ b/include/system/memory.h @@ -575,8 +575,8 @@ static inline void ram_discard_listener_init(RamDiscardListener *rdl, rdl->double_discard_supported = double_discard_supported; } -typedef int (*ReplayRamPopulate)(MemoryRegionSection *section, void *opaque); -typedef void (*ReplayRamDiscard)(MemoryRegionSection *section, void *opaque); +typedef int (*ReplayRamDiscardState)(MemoryRegionSection *section, + void *opaque); /* * RamDiscardManagerClass: @@ -650,36 +650,38 @@ struct RamDiscardManagerClass { /** * @replay_populated: * - * Call the #ReplayRamPopulate callback for all populated parts within the - * #MemoryRegionSection via the #RamDiscardManager. + * Call the #ReplayRamDiscardState callback for all populated parts within + * the #MemoryRegionSection via the #RamDiscardManager. * * In case any call fails, no further calls are made. * * @rdm: the #RamDiscardManager * @section: the #MemoryRegionSection - * @replay_fn: the #ReplayRamPopulate callback + * @replay_fn: the #ReplayRamDiscardState callback * @opaque: pointer to forward to the callback * * Returns 0 on success, or a negative error if any notification failed. */ int (*replay_populated)(const RamDiscardManager *rdm, MemoryRegionSection *section, - ReplayRamPopulate replay_fn, void *opaque); + ReplayRamDiscardState replay_fn, void *opaque); /** * @replay_discarded: * - * Call the #ReplayRamDiscard callback for all discarded parts within the - * #MemoryRegionSection via the #RamDiscardManager. + * Call the #ReplayRamDiscardState callback for all discarded parts within + * the #MemoryRegionSection via the #RamDiscardManager. * * @rdm: the #RamDiscardManager * @section: the #MemoryRegionSection - * @replay_fn: the #ReplayRamDiscard callback + * @replay_fn: the #ReplayRamDiscardState callback * @opaque: pointer to forward to the callback + * + * Returns 0 on success, or a negative error if any notification failed. */ - void (*replay_discarded)(const RamDiscardManager *rdm, - MemoryRegionSection *section, - ReplayRamDiscard replay_fn, void *opaque); + int (*replay_discarded)(const RamDiscardManager *rdm, + MemoryRegionSection *section, + ReplayRamDiscardState replay_fn, void *opaque); /** * @register_listener: @@ -722,13 +724,13 @@ bool ram_discard_manager_is_populated(const RamDiscardManager *rdm, int ram_discard_manager_replay_populated(const RamDiscardManager *rdm, MemoryRegionSection *section, - ReplayRamPopulate replay_fn, + ReplayRamDiscardState replay_fn, void *opaque); -void ram_discard_manager_replay_discarded(const RamDiscardManager *rdm, - MemoryRegionSection *section, - ReplayRamDiscard replay_fn, - void *opaque); +int ram_discard_manager_replay_discarded(const RamDiscardManager *rdm, + MemoryRegionSection *section, + ReplayRamDiscardState replay_fn, + void *opaque); void ram_discard_manager_register_listener(RamDiscardManager *rdm, RamDiscardListener *rdl, diff --git a/migration/ram.c b/migration/ram.c index e12913b43e..c004f37060 100644 --- a/migration/ram.c +++ b/migration/ram.c @@ -848,8 +848,8 @@ static inline bool migration_bitmap_clear_dirty(RAMState *rs, return ret; } -static void dirty_bitmap_clear_section(MemoryRegionSection *section, - void *opaque) +static int dirty_bitmap_clear_section(MemoryRegionSection *section, + void *opaque) { const hwaddr offset = section->offset_within_region; const hwaddr size = int128_get64(section->size); @@ -868,6 +868,7 @@ static void dirty_bitmap_clear_section(MemoryRegionSection *section, } *cleared_bits += bitmap_count_one_with_offset(rb->bmap, start, npages); bitmap_clear(rb->bmap, start, npages); + return 0; } /* diff --git a/system/memory.c b/system/memory.c index b45b508dce..de45fbdd3f 100644 --- a/system/memory.c +++ b/system/memory.c @@ -2138,7 +2138,7 @@ bool ram_discard_manager_is_populated(const RamDiscardManager *rdm, int ram_discard_manager_replay_populated(const RamDiscardManager *rdm, MemoryRegionSection *section, - ReplayRamPopulate replay_fn, + ReplayRamDiscardState replay_fn, void *opaque) { RamDiscardManagerClass *rdmc = RAM_DISCARD_MANAGER_GET_CLASS(rdm); @@ -2147,15 +2147,15 @@ int ram_discard_manager_replay_populated(const RamDiscardManager *rdm, return rdmc->replay_populated(rdm, section, replay_fn, opaque); } -void ram_discard_manager_replay_discarded(const RamDiscardManager *rdm, - MemoryRegionSection *section, - ReplayRamDiscard replay_fn, - void *opaque) +int ram_discard_manager_replay_discarded(const RamDiscardManager *rdm, + MemoryRegionSection *section, + ReplayRamDiscardState replay_fn, + void *opaque) { RamDiscardManagerClass *rdmc = RAM_DISCARD_MANAGER_GET_CLASS(rdm); g_assert(rdmc->replay_discarded); - rdmc->replay_discarded(rdm, section, replay_fn, opaque); + return rdmc->replay_discarded(rdm, section, replay_fn, opaque); } void ram_discard_manager_register_listener(RamDiscardManager *rdm, -- 2.43.5