From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mail-ot1-f74.google.com (mail-ot1-f74.google.com [209.85.210.74]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 8972210F8 for ; Fri, 11 Aug 2023 04:51:40 +0000 (UTC) Received: by mail-ot1-f74.google.com with SMTP id 46e09a7af769-6bb31e13a13so1886433a34.1 for ; Thu, 10 Aug 2023 21:51:40 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=20221208; t=1691729499; x=1692334299; h=content-transfer-encoding:cc:to:from:subject:message-id:references :mime-version:in-reply-to:date:from:to:cc:subject:date:message-id :reply-to; bh=KMunAMeBPKEY9T5yrPL+aMpFgaQV0/xsp/XormRaoBM=; b=oGyGjViqZNQB5Og/8KSGJT7aIHo2wwBSCnK8zrh4WX1dkLcj8j7++RIJ6MMhwLKJJM TFwYrscibPCB3QmC1vwbGjOxG+yFgDZoqgTW46Q0I43fh6plUvYPK40YZO8XMwTjrOdi fnlSk08NlXYIbGNj/3hHqeyZAiHuO84I1eN3h2UfQvsIoxOYp1344xAWxUoDUNlguK/d 5kLKAQj90+6/pX7UAxmtBlnRcJeCRHfDdeQh/yfwKQtOSPDaI07tcbauCsIMB854pARh XzBdqJA4i4gXWPKDMXc/sVC1BnOhZZ28pfZehmEJ44oNDRLqO12bBeCK/TDek5KZpg/u BZkg== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20221208; t=1691729499; x=1692334299; h=content-transfer-encoding:cc:to:from:subject:message-id:references :mime-version:in-reply-to:date:x-gm-message-state:from:to:cc:subject :date:message-id:reply-to; bh=KMunAMeBPKEY9T5yrPL+aMpFgaQV0/xsp/XormRaoBM=; b=IBfcXt0EHEcQbPwozZOyqSnxjvvDn0G2M6ar9w/G1rKyn7XuosqiMxnkeHyWrjX1a2 GJZ0V5oJxdO8pXEhzV0AIiDnZUlx03yH5VIbHFUJclBv9Izds024/LG/FO9UVAF2MFKg St6SgvVQ50YbB0oWsiBgZu5kbZj8/pzWQhTKYPqywxKS0tdu3FAqhcwzj3qv8yrfcSwr 5QRsH7/AaEgZj2Kgmxvz9XTWgO9Y2WQb93Si30ZXRT7ArZ912XS3MReoI9LuCfoCHRbx VShdtTEfSzRvbe4zNYrbQJ2o06hritxjKOp7/JR0sbLBsXSYOAU6ON2mqIaZorFMjDO1 jvwQ== X-Gm-Message-State: AOJu0Ywrt+QXMZWRNte+4S0JX29QQPGpLEr9WloJjS2XYkZ8OIXtGzl1 YFzVyza5IkH8cQpadCfAXWAja4F6i7Nu X-Google-Smtp-Source: AGHT+IE6iu8kZBBGXiPktI0w4Wht3tt9FXqeaiP6SFiaZO7WXbsaeVAitcRGbh4LxMh2/nvqjLQ5ZRjkCZrA X-Received: from rananta-linux.c.googlers.com ([fda3:e722:ac3:cc00:2b:ff92:c0a8:22b5]) (user=rananta job=sendgmr) by 2002:a05:6870:1ab5:b0:1c0:e9e9:ae91 with SMTP id ef53-20020a0568701ab500b001c0e9e9ae91mr13992oab.3.1691729499613; Thu, 10 Aug 2023 21:51:39 -0700 (PDT) Date: Fri, 11 Aug 2023 04:51:17 +0000 In-Reply-To: <20230811045127.3308641-1-rananta@google.com> Precedence: bulk X-Mailing-List: kvmarm@lists.linux.dev List-Id: List-Subscribe: List-Unsubscribe: Mime-Version: 1.0 References: <20230811045127.3308641-1-rananta@google.com> X-Mailer: git-send-email 2.41.0.640.ga95def55d0-goog Message-ID: <20230811045127.3308641-5-rananta@google.com> Subject: [PATCH v9 04/14] KVM: Remove CONFIG_HAVE_KVM_ARCH_TLB_FLUSH_ALL From: Raghavendra Rao Ananta To: Oliver Upton , Marc Zyngier , James Morse , Suzuki K Poulose Cc: Paolo Bonzini , Sean Christopherson , Huacai Chen , Zenghui Yu , Anup Patel , Atish Patra , Jing Zhang , Reiji Watanabe , Colton Lewis , Raghavendra Rao Anata , David Matlack , Fuad Tabba , linux-arm-kernel@lists.infradead.org, kvmarm@lists.linux.dev, linux-mips@vger.kernel.org, kvm-riscv@lists.infradead.org, linux-riscv@lists.infradead.org, linux-kernel@vger.kernel.org, kvm@vger.kernel.org, Shaoqin Huang , Gavin Shan , "=?UTF-8?q?Philippe=20Mathieu-Daud=C3=A9?=" Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: quoted-printable kvm_arch_flush_remote_tlbs() or CONFIG_HAVE_KVM_ARCH_TLB_FLUSH_ALL are two mechanisms to solve the same problem, allowing architecture-specific code to provide a non-IPI implementation of remote TLB flushing. Dropping CONFIG_HAVE_KVM_ARCH_TLB_FLUSH_ALL allows KVM to standardize all architectures on kvm_arch_flush_remote_tlbs() instead of maintaining two mechanisms. Signed-off-by: Raghavendra Rao Ananta Reviewed-by: Shaoqin Huang Reviewed-by: Gavin Shan Reviewed-by: Philippe Mathieu-Daud=C3=A9 --- virt/kvm/Kconfig | 3 --- virt/kvm/kvm_main.c | 2 -- 2 files changed, 5 deletions(-) diff --git a/virt/kvm/Kconfig b/virt/kvm/Kconfig index b74916de5183a..484d0873061ca 100644 --- a/virt/kvm/Kconfig +++ b/virt/kvm/Kconfig @@ -62,9 +62,6 @@ config HAVE_KVM_CPU_RELAX_INTERCEPT config KVM_VFIO bool =20 -config HAVE_KVM_ARCH_TLB_FLUSH_ALL - bool - config HAVE_KVM_INVALID_WAKEUPS bool =20 diff --git a/virt/kvm/kvm_main.c b/virt/kvm/kvm_main.c index 70e5479797ac3..d6b0507861550 100644 --- a/virt/kvm/kvm_main.c +++ b/virt/kvm/kvm_main.c @@ -345,7 +345,6 @@ bool kvm_make_all_cpus_request(struct kvm *kvm, unsigne= d int req) } EXPORT_SYMBOL_GPL(kvm_make_all_cpus_request); =20 -#ifndef CONFIG_HAVE_KVM_ARCH_TLB_FLUSH_ALL void kvm_flush_remote_tlbs(struct kvm *kvm) { ++kvm->stat.generic.remote_tlb_flush_requests; @@ -366,7 +365,6 @@ void kvm_flush_remote_tlbs(struct kvm *kvm) ++kvm->stat.generic.remote_tlb_flush; } EXPORT_SYMBOL_GPL(kvm_flush_remote_tlbs); -#endif =20 static void kvm_flush_shadow_all(struct kvm *kvm) { --=20 2.41.0.640.ga95def55d0-goog