Message ID | 20230515021522.2445551-18-zhaotianrui@loongson.cn |
---|---|
State | New |
Headers |
Return-Path: <linux-kernel-owner@vger.kernel.org> Delivered-To: ouuuleilei@gmail.com Received: by 2002:a59:b0ea:0:b0:3b6:4342:cba0 with SMTP id b10csp6617002vqo; Sun, 14 May 2023 19:34:56 -0700 (PDT) X-Google-Smtp-Source: ACHHUZ4D+Zl9ewjUKutlFAuKaf6ni/8VF/1WFgjxNsbR2Acy5pi+PNKxoGD5T53LuItWo0UOnZR9 X-Received: by 2002:a05:6a20:8412:b0:101:7e8e:445d with SMTP id c18-20020a056a20841200b001017e8e445dmr25058862pzd.19.1684118096294; Sun, 14 May 2023 19:34:56 -0700 (PDT) ARC-Seal: i=1; a=rsa-sha256; t=1684118096; cv=none; d=google.com; s=arc-20160816; b=k8Yta+NttvVv1BresHqbhv2gWYy7cqTkj7CnY7MkVU7owZxshhruWG5zUjIZpDcjeo iOdxvmIA1M8HBCG4hgF8m/x0TE5Y9VAtxxB6/5RWGzFcxjqgIadSu8yy+6RXE/BDERGC NZgRKmk3J32jNd7QiSUUmm3XpfYc43ENYb6wwvjBOfdyV5MYON9jZv234eTKHJDEV+gs YOmuhcLVzhz2IRSoq8Tbn55mS4WemLc4bnoEZpTTd0cvJvhiT5XBSZyJ3iLKBTwPuGN+ qNjtLoIaQDXfRutdSYEqitN2jMJa/Bci1DB6Q3TjdFusHKtUuxhRArAF/U2o6WaQtH/s WUag== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=arc-20160816; h=list-id:precedence:content-transfer-encoding:mime-version :references:in-reply-to:message-id:date:subject:cc:to:from; bh=pPUAVqzxrVaPAu0Mn4fRGc3mFLafEc/2/eskiGpI1FI=; b=CCxpJduFVSH+Kvl09Doe/T6yC0ZpWlPnFwt4pskXHqn7DoesVJxwZCWF3P2lbOqdzM aXgFqGcGY4VOHjzUh10A4Z0IkjdqW+ihwonS8UGJaSAKDuVuyKvrtGUWS+ktEeWfr1St kgno/8BP2tWUcJUQg+OK8YmLumrwGIpAQOmks5RBHtCWSyB37N3QZqtjPG55yoMv6GCe hjO0rrr0NYcMVqURhzrfypQaW+QVtwUIRNWESWqPUfGlbbaTyhaZTkw8h7qGIEVJXGad fy9Ve+5AqDctbZ4hW4q2GARYhN4tY7QgMG7GX0kYyTBb5KI7KO3j6lX7mtfuZ+MraPMQ 4bxQ== ARC-Authentication-Results: i=1; mx.google.com; spf=pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 2620:137:e000::1:20 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org Received: from out1.vger.email (out1.vger.email. [2620:137:e000::1:20]) by mx.google.com with ESMTP id w21-20020a63af15000000b0050bd8dd1b5asi14989061pge.43.2023.05.14.19.34.44; Sun, 14 May 2023 19:34:56 -0700 (PDT) Received-SPF: pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 2620:137:e000::1:20 as permitted sender) client-ip=2620:137:e000::1:20; Authentication-Results: mx.google.com; spf=pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 2620:137:e000::1:20 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S238790AbjEOCQ5 (ORCPT <rfc822;peekingduck44@gmail.com> + 99 others); Sun, 14 May 2023 22:16:57 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:53424 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S235813AbjEOCPh (ORCPT <rfc822;linux-kernel@vger.kernel.org>); Sun, 14 May 2023 22:15:37 -0400 Received: from loongson.cn (mail.loongson.cn [114.242.206.163]) by lindbergh.monkeyblade.net (Postfix) with ESMTP id 3575C199E; Sun, 14 May 2023 19:15:35 -0700 (PDT) Received: from loongson.cn (unknown [10.2.5.185]) by gateway (Coremail) with SMTP id _____8BxKurGlWFk268IAA--.14772S3; Mon, 15 May 2023 10:15:34 +0800 (CST) Received: from localhost.localdomain (unknown [10.2.5.185]) by localhost.localdomain (Coremail) with SMTP id AQAAf8Dxn7O6lWFk0KJeAA--.33838S19; Mon, 15 May 2023 10:15:33 +0800 (CST) From: Tianrui Zhao <zhaotianrui@loongson.cn> To: Paolo Bonzini <pbonzini@redhat.com>, Huacai Chen <chenhuacai@kernel.org> Cc: WANG Xuerui <kernel@xen0n.name>, Greg Kroah-Hartman <gregkh@linuxfoundation.org>, loongarch@lists.linux.dev, linux-kernel@vger.kernel.org, kvm@vger.kernel.org, Jens Axboe <axboe@kernel.dk>, Mark Brown <broonie@kernel.org>, Alex Deucher <alexander.deucher@amd.com>, Oliver Upton <oliver.upton@linux.dev>, maobibo@loongson.cn, Xi Ruoyao <xry111@xry111.site>, zhaotianrui@loongson.cn Subject: [PATCH v10 17/30] LoongArch: KVM: Implement virtual machine tlb operations Date: Mon, 15 May 2023 10:15:09 +0800 Message-Id: <20230515021522.2445551-18-zhaotianrui@loongson.cn> X-Mailer: git-send-email 2.39.1 In-Reply-To: <20230515021522.2445551-1-zhaotianrui@loongson.cn> References: <20230515021522.2445551-1-zhaotianrui@loongson.cn> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-CM-TRANSID: AQAAf8Dxn7O6lWFk0KJeAA--.33838S19 X-CM-SenderInfo: p2kd03xldq233l6o00pqjv00gofq/ X-Coremail-Antispam: 1Uk129KBjvJXoW7WrW7Xw4fGF4xGw1xtw43KFg_yoW8JF4kpF yfurs5Gw4fX3ZxW39xXwn7Wr13Xr4vkF17ZFW3ua4rZrZrtr1vyFnakrykJFWUtayrCr48 W34ftF4jgFWUJw7anT9S1TB71UUUUjJqnTZGkaVYY2UrUUUUj1kv1TuYvTs0mT0YCTnIWj qI5I8CrVACY4xI64kE6c02F40Ex7xfYxn0WfASr-VFAUDa7-sFnT9fnUUIcSsGvfJTRUUU bxxFc2x0x2IEx4CE42xK8VAvwI8IcIk0rVWrJVCq3wA2ocxC64kIII0Yj41l84x0c7CEw4 AK67xGY2AK021l84ACjcxK6xIIjxv20xvE14v26w1j6s0DM28EF7xvwVC0I7IYx2IY6xkF 7I0E14v26r4UJVWxJr1l84ACjcxK6I8E87Iv67AKxVW8Jr0_Cr1UM28EF7xvwVC2z280aV CY1x0267AKxVW8Jr0_Cr1UM2kKe7AKxVWUAVWUtwAS0I0E0xvYzxvE52x082IY62kv0487 Mc804VCY07AIYIkI8VC2zVCFFI0UMc02F40EFcxC0VAKzVAqx4xG6I80ewAv7VCjz48v1s IEY20_WwAm72CE4IkC6x0Yz7v_Jr0_Gr1lF7xvr2IYc2Ij64vIr41lc7CjxVAaw2AFwI0_ JF0_Jw1l42xK82IYc2Ij64vIr41l42xK82IY6x8ErcxFaVAv8VWrMxC20s026xCaFVCjc4 AY6r1j6r4UMxCIbckI1I0E14v26r126r1DMI8I3I0E5I8CrVAFwI0_Jr0_Jr4lx2IqxVCj r7xvwVAFwI0_JrI_JrWlx4CE17CEb7AF67AKxVWUtVW8ZwCIc40Y0x0EwIxGrwCI42IY6x IIjxv20xvE14v26w1j6s0DMIIF0xvE2Ix0cI8IcVCY1x0267AKxVW8Jr0_Cr1UMIIF0xvE 42xK8VAvwI8IcIk0rVWUJVWUCwCI42IY6I8E87Iv67AKxVW8Jr0_Cr1UMIIF0xvEx4A2js IEc7CjxVAFwI0_Gr1j6F4UJbIYCTnIWIevJa73UjIFyTuYvj4RKpBTUUUUU X-Spam-Status: No, score=-1.9 required=5.0 tests=BAYES_00,SPF_HELO_PASS, SPF_PASS,T_SCC_BODY_TEXT_LINE autolearn=ham autolearn_force=no version=3.4.6 X-Spam-Checker-Version: SpamAssassin 3.4.6 (2021-04-09) on lindbergh.monkeyblade.net Precedence: bulk List-ID: <linux-kernel.vger.kernel.org> X-Mailing-List: linux-kernel@vger.kernel.org X-getmail-retrieved-from-mailbox: =?utf-8?q?INBOX?= X-GMAIL-THRID: =?utf-8?q?1765925816510447661?= X-GMAIL-MSGID: =?utf-8?q?1765925816510447661?= |
Series |
Add KVM LoongArch support
|
|
Commit Message
zhaotianrui
May 15, 2023, 2:15 a.m. UTC
Implement LoongArch virtual machine tlb operations such as flush tlb by
specific gpa parameter and flush all of the virt machines tlb.
Signed-off-by: Tianrui Zhao <zhaotianrui@loongson.cn>
---
arch/loongarch/kvm/tlb.c | 31 +++++++++++++++++++++++++++++++
1 file changed, 31 insertions(+)
create mode 100644 arch/loongarch/kvm/tlb.c
diff --git a/arch/loongarch/kvm/tlb.c b/arch/loongarch/kvm/tlb.c new file mode 100644 index 000000000000..66e116cf2486 --- /dev/null +++ b/arch/loongarch/kvm/tlb.c @@ -0,0 +1,31 @@ +// SPDX-License-Identifier: GPL-2.0 +/* + * Copyright (C) 2020-2023 Loongson Technology Corporation Limited + */ + +#include <linux/kvm_host.h> +#include <asm/tlb.h> + +int kvm_flush_tlb_gpa(struct kvm_vcpu *vcpu, unsigned long gpa) +{ + preempt_disable(); + gpa &= (PAGE_MASK << 1); + invtlb(INVTLB_GID_ADDR, read_csr_gstat() & CSR_GSTAT_GID, gpa); + preempt_enable(); + return 0; +} + +/** + * kvm_flush_tlb_all() - Flush all root TLB entries for + * guests. + * + * Invalidate all entries including GVA-->GPA and GPA-->HPA mappings. + */ +void kvm_flush_tlb_all(void) +{ + unsigned long flags; + + local_irq_save(flags); + invtlb_all(INVTLB_ALLGID, 0, 0); + local_irq_restore(flags); +}