From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-14.9 required=3.0 tests=BAYES_00,DKIM_INVALID, DKIM_SIGNED,HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER,INCLUDES_PATCH, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,URIBL_BLACK,USER_AGENT_GIT autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 04A28C433E0 for ; Sat, 27 Mar 2021 14:36:58 +0000 (UTC) Received: from lists.gnu.org (lists.gnu.org [209.51.188.17]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id 814AD61949 for ; Sat, 27 Mar 2021 14:36:57 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 814AD61949 Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=amsat.org Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Received: from localhost ([::1]:42000 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1lQA3c-0003iG-H5 for qemu-devel@archiver.kernel.org; Sat, 27 Mar 2021 10:36:56 -0400 Received: from eggs.gnu.org ([2001:470:142:3::10]:35104) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1lQA1x-0001tV-3X for qemu-devel@nongnu.org; Sat, 27 Mar 2021 10:35:13 -0400 Received: from mail-wm1-x333.google.com ([2a00:1450:4864:20::333]:38401) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_128_GCM_SHA256:128) (Exim 4.90_1) (envelope-from ) id 1lQA1t-0003pn-Ox for qemu-devel@nongnu.org; Sat, 27 Mar 2021 10:35:11 -0400 Received: by mail-wm1-x333.google.com with SMTP id m20-20020a7bcb940000b029010cab7e5a9fso6323175wmi.3 for ; Sat, 27 Mar 2021 07:35:05 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=sender:from:to:cc:subject:date:message-id:in-reply-to:references :mime-version:content-transfer-encoding; bh=N8Qe6iFUAzFrr7FUr4KBajWcwtH7OzQT1dC3OwtApNs=; b=kWMiD7NzM2dELBD4//sn1cs77sxIagYIxC53EcXYnw4eaRjjqjeinc6xcVil7i4m/V 3SvmAIMxHyT+guL51gCjg8LzN1NZdqlcX8MCsHp0XbwpFb6NXaKaOJHCeDSu85mqwGLo qP6Vd9y578drU0Q6nIJMQGpfPNGM/O8mcG6944IhAsug9IS71PIBur4msDgpjEGkTRBE z8aWziYa2zT2SXbRgHPMhkPsBU3c9vMJFFs2mCENANBijsjmwlvhk7qkwiBf5hYtepla rIKe2XKWnM0PqAfudrHinyd3ELQ0VhZsF1273ddvtrcvexhX2Z1RnMcpIw1KjuPkYuQm uKIQ== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:sender:from:to:cc:subject:date:message-id :in-reply-to:references:mime-version:content-transfer-encoding; bh=N8Qe6iFUAzFrr7FUr4KBajWcwtH7OzQT1dC3OwtApNs=; b=VYjixhekc4kLNjxHmxRMvPsfoRhBi9czyUiI1oKzLuOVBFkMMMq3Ok8w1LxNCD15yV qrO+dB51GzsqZNqsz6DPx4ul2MEXbZ7jno+7G5MqKVxF7XFnayWOh8LHeXZ7wJv7uJdx Q2o7ufwmuM5Ehl0EjOxDU+7I5L2cyYjoZaF5IpgPjP2XIgCxfBA47CpUoyM76UrT+rpd BobRmc68Qpq+enc02KJyVpvLGNFTipY85LTcfxQNqDQU7yLuJyA4hpUSEPDWrznbMkKb 5Xn5U3LPFFnHKqD0woTcSlrdPXj/bQp0+aMLJRmLZ+0rYuM7vj6hioAmTlTRqe7chv75 udrA== X-Gm-Message-State: AOAM533pfsf14NAsuYn/S/aR9DkwGITtgHvlgmMxNntaRfPm7ZTeOXYT fWZY6/3KTo1zQZ4ThnAcMNveoB2WZjtrgQ== X-Google-Smtp-Source: ABdhPJybGjgYBYwLYRdTSVa6+jGgcPlIn1T9XaUHGjDj8USzGM5udM102yWlhQQdyHnkcVFiP1xeKg== X-Received: by 2002:a1c:43c6:: with SMTP id q189mr17627023wma.80.1616855704413; Sat, 27 Mar 2021 07:35:04 -0700 (PDT) Received: from localhost.localdomain (17.red-88-21-201.staticip.rima-tde.net. [88.21.201.17]) by smtp.gmail.com with ESMTPSA id s20sm16412602wmj.36.2021.03.27.07.35.03 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Sat, 27 Mar 2021 07:35:03 -0700 (PDT) From: =?UTF-8?q?Philippe=20Mathieu-Daud=C3=A9?= To: qemu-devel@nongnu.org Subject: [PATCH-for-6.1 v3 2/5] memory: Add memory_region_set_priority() Date: Sat, 27 Mar 2021 15:34:49 +0100 Message-Id: <20210327143452.1514392-3-f4bug@amsat.org> X-Mailer: git-send-email 2.26.2 In-Reply-To: <20210327143452.1514392-1-f4bug@amsat.org> References: <20210327143452.1514392-1-f4bug@amsat.org> MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Received-SPF: pass client-ip=2a00:1450:4864:20::333; envelope-from=philippe.mathieu.daude@gmail.com; helo=mail-wm1-x333.google.com X-Spam_score_int: -14 X-Spam_score: -1.5 X-Spam_bar: - X-Spam_report: (-1.5 / 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, RCVD_IN_DNSWL_NONE=-0.0001, SPF_HELO_NONE=0.001, SPF_PASS=-0.001 autolearn=no autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Alexey Kardashevskiy , Paolo Bonzini , KONRAD Frederic , =?UTF-8?q?Philippe=20Mathieu-Daud=C3=A9?= , Peter Maydell Errors-To: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Sender: "Qemu-devel" Add an helper to change the priority of a memory region at runtime. Suggested-by: Alexey Kardashevskiy Signed-off-by: Philippe Mathieu-Daudé --- include/exec/memory.h | 10 ++++++++++ softmmu/memory.c | 11 +++++++++++ 2 files changed, 21 insertions(+) diff --git a/include/exec/memory.h b/include/exec/memory.h index 5728a681b27..6ad9ff83457 100644 --- a/include/exec/memory.h +++ b/include/exec/memory.h @@ -1983,6 +1983,16 @@ void memory_region_set_size(MemoryRegion *mr, uint64_t size); void memory_region_set_alias_offset(MemoryRegion *mr, hwaddr offset); +/** + * memory_region_set_priority: dynamically update the priority of a region. + * + * Dynamically updates the priority of a region. + * + * @mr: the #MemoryRegion to be updated. + * @priority: priority of the region. + */ +void memory_region_set_priority(MemoryRegion *mr, int priority); + /** * memory_region_present: checks if an address relative to a @container * translates into #MemoryRegion within @container diff --git a/softmmu/memory.c b/softmmu/memory.c index 4fbeee02dc7..fdba938f299 100644 --- a/softmmu/memory.c +++ b/softmmu/memory.c @@ -2504,6 +2504,17 @@ void memory_region_set_size(MemoryRegion *mr, uint64_t size) memory_region_transaction_commit(); } +void memory_region_set_priority(MemoryRegion *mr, int priority) +{ + if (priority == mr->priority) { + return; + } + memory_region_transaction_begin(); + mr->priority = priority; + memory_region_update_pending = true; + memory_region_transaction_commit(); +} + static void memory_region_readd_subregion(MemoryRegion *mr) { MemoryRegion *container = mr->container; -- 2.26.2