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([94.75.70.14]) by smtp.gmail.com with ESMTPSA id j7-20020a056512108700b0050e6df07728sm45983lfg.180.2023.12.22.07.13.33 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Fri, 22 Dec 2023 07:13:34 -0800 (PST) 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: ad0273a2-a0dc-11ee-98eb-6d05b1d4d9a1 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20230601; t=1703258014; x=1703862814; darn=lists.xenproject.org; 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=34jIfAHruS1igTLy4v5O5K/2+Cv87aWM2kyu/xj3kDI=; b=hGTGvTbadHqjtAesU75R/y1q7dMNwI3VAKV5+rZCuDPHI6E8C3AgJTtQWAL07IVQt9 o3pRnIaZJgLKkfCJ7CmeB1QjXiEw65EIlXkmFzuq+W6jYpstl/5Cdgxbpsefx/yHo9bC Grd2j4u4YOztNGjACFNq+ioYReUokF5ISIEyDnvHWqzeY/8PBejLBbUfyKn8aJzLfLGr qn64kH6uUO/H5agJIpcpwHeP9bi0w3LRhifZXaG2aqB/cKXqt2ysDN8B+6OlSnYEjNuY aUgPVdjRZs+P7BR+Qjm20NhToT8uredgmmKWwt4BfFPyS8XGA8RobY/LYq50qvHXvdqe ecUg== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1703258014; x=1703862814; 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=34jIfAHruS1igTLy4v5O5K/2+Cv87aWM2kyu/xj3kDI=; b=kMGBTh5SpQPuhGQVvkTMH+H0W42tYjq85O8YbvY09oIrLDgmj+TeM1w0+Z+Tv1+xmI Vonp8Qt9ZsE373er4k0K9TOrfraHQckfbjRM6/v/d2Y9qMnKv00Vnr+S0/c3SVS8tJX3 Cru+fVMMiT7N5WZcm4J/GWD6EqGUoAQU6RngCZEZVSks5/R6/eXgNwxXWSAuL46vK7G2 yXaN3mcIjLgfSwPuWIadkseQfK9wOi8R2bDJDU/wbTWuHsynHj/Xn4pGOHo3HyhZyb9W CH7UfgfMQ5EONJZmXuuEdKFTftf1bzKU98yjINCxS/pEqpEFnXg8ecrWemiH4DbxsBfB 6NdQ== X-Gm-Message-State: AOJu0YxKkTT8CmdnWMBXFcLV4a35+Latd2BSgbbHoLl8XJXRYoANN3sE 7ol9mgtYk/gqEmSXMb+rICw83Niy02k= X-Google-Smtp-Source: AGHT+IHD/yBfdoadthgsprvPOestR7uYY9evy4Bg+UKv4XV9FrHwiZpUfNCXyls3OXQrVJFlRkEKHQ== X-Received: by 2002:a05:6512:613:b0:50e:568d:d527 with SMTP id b19-20020a056512061300b0050e568dd527mr706765lfe.11.1703258014512; Fri, 22 Dec 2023 07:13:34 -0800 (PST) From: Oleksii Kurochko To: xen-devel@lists.xenproject.org Cc: Oleksii Kurochko , Alistair Francis , Bob Eshleman , Connor Davis , Andrew Cooper , George Dunlap , Jan Beulich , Julien Grall , Stefano Stabellini , Wei Liu Subject: [PATCH v3 11/34] xen/riscv: introduce flushtlb.h Date: Fri, 22 Dec 2023 17:12:55 +0200 Message-ID: <2e067c286c7002b4b2a41538dde040ff06fc6cfb.1703255175.git.oleksii.kurochko@gmail.com> X-Mailer: git-send-email 2.43.0 In-Reply-To: References: MIME-Version: 1.0 Signed-off-by: Oleksii Kurochko Acked-by: Jan Beulich --- Changes in V3: - add SPDX & footer - add Acked-by: Jan Beulich --- Changes in V2: - Nothing changed. Only rebase. --- xen/arch/riscv/include/asm/flushtlb.h | 33 +++++++++++++++++++++++++++ 1 file changed, 33 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..3bdcb08e3a --- /dev/null +++ b/xen/arch/riscv/include/asm/flushtlb.h @@ -0,0 +1,33 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ +#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: + */