From patchwork Wed Aug 16 10:19:34 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Oleksii Kurochko X-Patchwork-Id: 13354894 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from lists.xenproject.org (lists.xenproject.org [192.237.175.120]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id 3104EC001B0 for ; Wed, 16 Aug 2023 10:32:29 +0000 (UTC) Received: from list by lists.xenproject.org with outflank-mailman.584491.915329 (Exim 4.92) (envelope-from ) id 1qWDoy-0003ne-A9; Wed, 16 Aug 2023 10:32:12 +0000 X-Outflank-Mailman: Message body and most headers restored to incoming version Received: by outflank-mailman (output) from mailman id 584491.915329; Wed, 16 Aug 2023 10:32:12 +0000 Received: from localhost ([127.0.0.1] helo=lists.xenproject.org) by lists.xenproject.org with esmtp (Exim 4.92) (envelope-from ) id 1qWDoy-0003mV-0n; Wed, 16 Aug 2023 10:32:12 +0000 Received: by outflank-mailman (input) for mailman id 584491; Wed, 16 Aug 2023 10:32:10 +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 1qWDdj-0003R9-6B for xen-devel@lists.xenproject.org; Wed, 16 Aug 2023 10:20:35 +0000 Received: from mail-wr1-x430.google.com (mail-wr1-x430.google.com [2a00:1450:4864:20::430]) by se1-gles-sth1.inumbo.com (Halon) with ESMTPS id 89168ebc-3c1e-11ee-8779-cb3800f73035; Wed, 16 Aug 2023 12:20:34 +0200 (CEST) Received: by mail-wr1-x430.google.com with SMTP id ffacd0b85a97d-31768ce2e81so5612816f8f.1 for ; Wed, 16 Aug 2023 03:20:34 -0700 (PDT) Received: from 192.168.1.26 ([151.25.98.127]) by smtp.gmail.com with ESMTPSA id g5-20020adfe405000000b0031773a8e5c4sm20877843wrm.37.2023.08.16.03.20.32 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Wed, 16 Aug 2023 03:20:33 -0700 (PDT) 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: 89168ebc-3c1e-11ee-8779-cb3800f73035 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20221208; t=1692181233; x=1692786033; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:from:to:cc:subject:date :message-id:reply-to; bh=IRtiTYQRYbcZrtXq4n+hG2e+DxiDviaEq931etLVkR0=; b=aMuSACQJ5APZ3KpcB+04LYm5+njozs1fC9hVKCmbVy1RUcfg2pFx3iwFSYbMHKlEUw 2lQ/EVWyUwG+1moRnw9HgqZXtqfadnx3CxoTh/RU72DEdghHWSjB2poXJvkt/w+Pypmd dsXZkYyGMJwz8yHdwf2S7acfUlvOK6IpygEfI7Vf07nyz7W3StzqKJEbVzrQXgiyQTE+ s/tJnqq1IeiBNjo+BAY5S1zqhaxJZoW59g2UiVL9Y+DkkMhIdiyYqBfhVMmPgPWD5nPf 8f+TlkcqMfjTlrwcwtE5tOsZo4NLxY9e3KKRDTEfYKgt4ZAulGzx3xzoiTwABCcC+Gdo xccw== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20221208; t=1692181233; x=1692786033; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:x-gm-message-state:from:to:cc :subject:date:message-id:reply-to; bh=IRtiTYQRYbcZrtXq4n+hG2e+DxiDviaEq931etLVkR0=; b=Ewi2pD85/X5A/7iV55vp0N6fNDL1D4O5Fmt3XtalM1NqEAYuMMHKwu1X1s0u4dKX0f h3ywMwALBm+OqUIsPTMThW7Tvnb0EIm5eBm/F/3VHb6gHpf4qjeGri2grsYr0uWJgv2j ehyt60FPKzEJTCzuskndQf/Kdlma0cdSFEmgpQdzR40y1s/Cvxf6vsQ0tTUMF4zZzxlC u1TKUakS3BZrIKDBo2WfPMuPtYAHZLmgZFeRYjgWhbE+ccog/HEanAgPYpe1jY+N8XfC zFtfdQPyqTpfMMBv0+rGb6MxTNXcm8TPw3aEnDPqEscIap6AuuUgfICqMoHKK3XWW0FI jMfw== X-Gm-Message-State: AOJu0YypgsY0cHjNvwkF1lZ9wvyQszeANMcAPZqr7dl52a7jHH2cPsUP pLQY/TWYhOiWBRDzj2WakcX2TtQpsgVmXFY3 X-Google-Smtp-Source: AGHT+IFbTFVylxr/IB5kRWU6W9n2p2yc0LAU+SeWWffoBbgNlIVl7gRfczsV2vsmERd3aTbwxs9ANA== X-Received: by 2002:a5d:5349:0:b0:30e:19a8:4b0a with SMTP id t9-20020a5d5349000000b0030e19a84b0amr1086272wrv.2.1692181233369; Wed, 16 Aug 2023 03:20:33 -0700 (PDT) From: Oleksii Kurochko To: xen-devel@lists.xenproject.org Cc: Oleksii Kurochko , Bob Eshleman , Alistair Francis , Connor Davis Subject: [PATCH v1 23/57] xen/riscv: introduce flushtlb.h Date: Wed, 16 Aug 2023 13:19:34 +0300 Message-ID: X-Mailer: git-send-email 2.41.0 In-Reply-To: References: MIME-Version: 1.0 Signed-off-by: Oleksii Kurochko --- xen/arch/riscv/include/asm/flushtlb.h | 31 +++++++++++++++++++++++++++ 1 file changed, 31 insertions(+) create mode 100644 xen/arch/riscv/include/asm/flushtlb.h diff --git a/xen/arch/riscv/include/asm/flushtlb.h b/xen/arch/riscv/include/asm/flushtlb.h new file mode 100644 index 0000000000..7059a53823 --- /dev/null +++ b/xen/arch/riscv/include/asm/flushtlb.h @@ -0,0 +1,31 @@ +#ifndef __ASM_RISCV_FLUSHTLB_H__ +#define __ASM_RISCV_FLUSHTLB_H__ + +#include + +/* + * Filter the given set of CPUs, removing those that definitely flushed their + * TLB since @page_timestamp. + */ +/* XXX lazy implementation just doesn't clear anything.... */ +static inline void tlbflush_filter(cpumask_t *mask, uint32_t page_timestamp) {} + +#define tlbflush_current_time() (0) + +static inline void page_set_tlbflush_timestamp(struct page_info *page) +{ + BUG(); +} + +/* Flush specified CPUs' TLBs */ +void arch_flush_tlb_mask(const cpumask_t *mask); + +#endif /* __ASM_RISCV_FLUSHTLB_H__ */ +/* + * Local variables: + * mode: C + * c-file-style: "BSD" + * c-basic-offset: 4 + * indent-tabs-mode: nil + * End: + */