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 Received: from mm01.cs.columbia.edu (mm01.cs.columbia.edu [128.59.11.253]) by smtp.lore.kernel.org (Postfix) with ESMTP id 7F78FC4332F for ; Thu, 19 May 2022 13:43:05 +0000 (UTC) Received: from localhost (localhost [127.0.0.1]) by mm01.cs.columbia.edu (Postfix) with ESMTP id 38AE34B38A; Thu, 19 May 2022 09:43:05 -0400 (EDT) X-Virus-Scanned: at lists.cs.columbia.edu Authentication-Results: mm01.cs.columbia.edu (amavisd-new); dkim=softfail (fail, message has been altered) header.i=@kernel.org Received: from mm01.cs.columbia.edu ([127.0.0.1]) by localhost (mm01.cs.columbia.edu [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id fYqcB5uURhGF; Thu, 19 May 2022 09:43:04 -0400 (EDT) Received: from mm01.cs.columbia.edu (localhost [127.0.0.1]) by mm01.cs.columbia.edu (Postfix) with ESMTP id 2D32D4B382; Thu, 19 May 2022 09:43:04 -0400 (EDT) Received: from localhost (localhost [127.0.0.1]) by mm01.cs.columbia.edu (Postfix) with ESMTP id 31F9D4B105 for ; Thu, 19 May 2022 09:43:03 -0400 (EDT) X-Virus-Scanned: at lists.cs.columbia.edu Received: from mm01.cs.columbia.edu ([127.0.0.1]) by localhost (mm01.cs.columbia.edu [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id M1ci7JWjpVTo for ; Thu, 19 May 2022 09:43:02 -0400 (EDT) Received: from dfw.source.kernel.org (dfw.source.kernel.org [139.178.84.217]) by mm01.cs.columbia.edu (Postfix) with ESMTPS id ECD304B1FD for ; Thu, 19 May 2022 09:43:01 -0400 (EDT) Received: from smtp.kernel.org (relay.kernel.org [52.25.139.140]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by dfw.source.kernel.org (Postfix) with ESMTPS id 64FCC6176B; Thu, 19 May 2022 13:43:01 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 55950C36AE3; Thu, 19 May 2022 13:42:57 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1652967780; bh=NrldTKw4gy/AB6RKI6l9qxaqANtkJHYc69sbOYfX8H0=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=EYcUG+Rd5Iy1H2+7orRU5jbJJSXTyoid9xZEwJUJdhKF1jpfKD/5Hz5oxS8MNYswp jO3O3fNqUjpngNKH/am3JaOJYSiU8P9fElf6AGXTTsDcQ76myYidcj8l13D63TYj09 THvgbGo5pfRtjUlNwZBY5opYZygHg/nPN/tDIlZf1M3nxaz7JY+tGN4rYdDKemJvFg kKz1/P0yUUTvdgueD/mQtXumo0jDKve6WvJhn8NyGPa60gliRDP4/48UH3rkr1EvKq sIA2Jr6zy/IRkJsXuG0QxmdL9aKJ8bJf59SkzEo5qAqi3blh//oj0lpYrrP7cDCyVt xPa003YwbLtOA== From: Will Deacon To: kvmarm@lists.cs.columbia.edu Subject: [PATCH 09/89] KVM: arm64: Unify identifiers used to distinguish host and hypervisor Date: Thu, 19 May 2022 14:40:44 +0100 Message-Id: <20220519134204.5379-10-will@kernel.org> X-Mailer: git-send-email 2.20.1 In-Reply-To: <20220519134204.5379-1-will@kernel.org> References: <20220519134204.5379-1-will@kernel.org> MIME-Version: 1.0 Cc: Marc Zyngier , kernel-team@android.com, kvm@vger.kernel.org, Andy Lutomirski , linux-arm-kernel@lists.infradead.org, Michael Roth , Catalin Marinas , Chao Peng , Will Deacon X-BeenThere: kvmarm@lists.cs.columbia.edu X-Mailman-Version: 2.1.14 Precedence: list List-Id: Where KVM/ARM decisions are made List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Errors-To: kvmarm-bounces@lists.cs.columbia.edu Sender: kvmarm-bounces@lists.cs.columbia.edu The 'pkvm_component_id' enum type provides constants to refer to the host and the hypervisor, yet this information is duplicated by the 'pkvm_hyp_id' constant. Remove the definition of 'pkvm_hyp_id' and move the 'pkvm_component_id' type definition to 'mem_protect.h' so that it can be used outside of the memory protection code. Signed-off-by: Will Deacon --- arch/arm64/kvm/hyp/include/nvhe/mem_protect.h | 6 +++++- arch/arm64/kvm/hyp/nvhe/mem_protect.c | 8 -------- arch/arm64/kvm/hyp/nvhe/setup.c | 2 +- 3 files changed, 6 insertions(+), 10 deletions(-) diff --git a/arch/arm64/kvm/hyp/include/nvhe/mem_protect.h b/arch/arm64/kvm/hyp/include/nvhe/mem_protect.h index 80e99836eac7..f5705a1e972f 100644 --- a/arch/arm64/kvm/hyp/include/nvhe/mem_protect.h +++ b/arch/arm64/kvm/hyp/include/nvhe/mem_protect.h @@ -51,7 +51,11 @@ struct host_kvm { }; extern struct host_kvm host_kvm; -extern const u8 pkvm_hyp_id; +/* This corresponds to page-table locking order */ +enum pkvm_component_id { + PKVM_ID_HOST, + PKVM_ID_HYP, +}; int __pkvm_prot_finalize(void); int __pkvm_host_share_hyp(u64 pfn); diff --git a/arch/arm64/kvm/hyp/nvhe/mem_protect.c b/arch/arm64/kvm/hyp/nvhe/mem_protect.c index 1e78acf9662e..ff86f5bd230f 100644 --- a/arch/arm64/kvm/hyp/nvhe/mem_protect.c +++ b/arch/arm64/kvm/hyp/nvhe/mem_protect.c @@ -26,8 +26,6 @@ struct host_kvm host_kvm; static struct hyp_pool host_s2_pool; -const u8 pkvm_hyp_id = 1; - static void host_lock_component(void) { hyp_spin_lock(&host_kvm.lock); @@ -380,12 +378,6 @@ void handle_host_mem_abort(struct kvm_cpu_context *host_ctxt) BUG_ON(ret && ret != -EAGAIN); } -/* This corresponds to locking order */ -enum pkvm_component_id { - PKVM_ID_HOST, - PKVM_ID_HYP, -}; - struct pkvm_mem_transition { u64 nr_pages; diff --git a/arch/arm64/kvm/hyp/nvhe/setup.c b/arch/arm64/kvm/hyp/nvhe/setup.c index 7d2b325efb50..311197a223e6 100644 --- a/arch/arm64/kvm/hyp/nvhe/setup.c +++ b/arch/arm64/kvm/hyp/nvhe/setup.c @@ -197,7 +197,7 @@ static int finalize_host_mappings_walker(u64 addr, u64 end, u32 level, state = pkvm_getstate(kvm_pgtable_hyp_pte_prot(pte)); switch (state) { case PKVM_PAGE_OWNED: - return host_stage2_set_owner_locked(phys, PAGE_SIZE, pkvm_hyp_id); + return host_stage2_set_owner_locked(phys, PAGE_SIZE, PKVM_ID_HYP); case PKVM_PAGE_SHARED_OWNED: prot = pkvm_mkstate(PKVM_HOST_MEM_PROT, PKVM_PAGE_SHARED_BORROWED); break; -- 2.36.1.124.g0e6072fb45-goog _______________________________________________ kvmarm mailing list kvmarm@lists.cs.columbia.edu https://lists.cs.columbia.edu/mailman/listinfo/kvmarm 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 Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 843C9C433EF for ; Thu, 19 May 2022 13:44:57 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S229864AbiESNos (ORCPT ); Thu, 19 May 2022 09:44:48 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:48356 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S238917AbiESNnD (ORCPT ); Thu, 19 May 2022 09:43:03 -0400 Received: from dfw.source.kernel.org (dfw.source.kernel.org [IPv6:2604:1380:4641:c500::1]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 2EA5E3EF02 for ; Thu, 19 May 2022 06:43:01 -0700 (PDT) Received: from smtp.kernel.org (relay.kernel.org [52.25.139.140]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by dfw.source.kernel.org (Postfix) with ESMTPS id 5CA3D6173E for ; Thu, 19 May 2022 13:43:01 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 55950C36AE3; Thu, 19 May 2022 13:42:57 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1652967780; bh=NrldTKw4gy/AB6RKI6l9qxaqANtkJHYc69sbOYfX8H0=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=EYcUG+Rd5Iy1H2+7orRU5jbJJSXTyoid9xZEwJUJdhKF1jpfKD/5Hz5oxS8MNYswp jO3O3fNqUjpngNKH/am3JaOJYSiU8P9fElf6AGXTTsDcQ76myYidcj8l13D63TYj09 THvgbGo5pfRtjUlNwZBY5opYZygHg/nPN/tDIlZf1M3nxaz7JY+tGN4rYdDKemJvFg kKz1/P0yUUTvdgueD/mQtXumo0jDKve6WvJhn8NyGPa60gliRDP4/48UH3rkr1EvKq sIA2Jr6zy/IRkJsXuG0QxmdL9aKJ8bJf59SkzEo5qAqi3blh//oj0lpYrrP7cDCyVt xPa003YwbLtOA== From: Will Deacon To: kvmarm@lists.cs.columbia.edu Cc: Will Deacon , Ard Biesheuvel , Sean Christopherson , Alexandru Elisei , Andy Lutomirski , Catalin Marinas , James Morse , Chao Peng , Quentin Perret , Suzuki K Poulose , Michael Roth , Mark Rutland , Fuad Tabba , Oliver Upton , Marc Zyngier , kernel-team@android.com, kvm@vger.kernel.org, linux-arm-kernel@lists.infradead.org Subject: [PATCH 09/89] KVM: arm64: Unify identifiers used to distinguish host and hypervisor Date: Thu, 19 May 2022 14:40:44 +0100 Message-Id: <20220519134204.5379-10-will@kernel.org> X-Mailer: git-send-email 2.20.1 In-Reply-To: <20220519134204.5379-1-will@kernel.org> References: <20220519134204.5379-1-will@kernel.org> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Precedence: bulk List-ID: X-Mailing-List: kvm@vger.kernel.org The 'pkvm_component_id' enum type provides constants to refer to the host and the hypervisor, yet this information is duplicated by the 'pkvm_hyp_id' constant. Remove the definition of 'pkvm_hyp_id' and move the 'pkvm_component_id' type definition to 'mem_protect.h' so that it can be used outside of the memory protection code. Signed-off-by: Will Deacon --- arch/arm64/kvm/hyp/include/nvhe/mem_protect.h | 6 +++++- arch/arm64/kvm/hyp/nvhe/mem_protect.c | 8 -------- arch/arm64/kvm/hyp/nvhe/setup.c | 2 +- 3 files changed, 6 insertions(+), 10 deletions(-) diff --git a/arch/arm64/kvm/hyp/include/nvhe/mem_protect.h b/arch/arm64/kvm/hyp/include/nvhe/mem_protect.h index 80e99836eac7..f5705a1e972f 100644 --- a/arch/arm64/kvm/hyp/include/nvhe/mem_protect.h +++ b/arch/arm64/kvm/hyp/include/nvhe/mem_protect.h @@ -51,7 +51,11 @@ struct host_kvm { }; extern struct host_kvm host_kvm; -extern const u8 pkvm_hyp_id; +/* This corresponds to page-table locking order */ +enum pkvm_component_id { + PKVM_ID_HOST, + PKVM_ID_HYP, +}; int __pkvm_prot_finalize(void); int __pkvm_host_share_hyp(u64 pfn); diff --git a/arch/arm64/kvm/hyp/nvhe/mem_protect.c b/arch/arm64/kvm/hyp/nvhe/mem_protect.c index 1e78acf9662e..ff86f5bd230f 100644 --- a/arch/arm64/kvm/hyp/nvhe/mem_protect.c +++ b/arch/arm64/kvm/hyp/nvhe/mem_protect.c @@ -26,8 +26,6 @@ struct host_kvm host_kvm; static struct hyp_pool host_s2_pool; -const u8 pkvm_hyp_id = 1; - static void host_lock_component(void) { hyp_spin_lock(&host_kvm.lock); @@ -380,12 +378,6 @@ void handle_host_mem_abort(struct kvm_cpu_context *host_ctxt) BUG_ON(ret && ret != -EAGAIN); } -/* This corresponds to locking order */ -enum pkvm_component_id { - PKVM_ID_HOST, - PKVM_ID_HYP, -}; - struct pkvm_mem_transition { u64 nr_pages; diff --git a/arch/arm64/kvm/hyp/nvhe/setup.c b/arch/arm64/kvm/hyp/nvhe/setup.c index 7d2b325efb50..311197a223e6 100644 --- a/arch/arm64/kvm/hyp/nvhe/setup.c +++ b/arch/arm64/kvm/hyp/nvhe/setup.c @@ -197,7 +197,7 @@ static int finalize_host_mappings_walker(u64 addr, u64 end, u32 level, state = pkvm_getstate(kvm_pgtable_hyp_pte_prot(pte)); switch (state) { case PKVM_PAGE_OWNED: - return host_stage2_set_owner_locked(phys, PAGE_SIZE, pkvm_hyp_id); + return host_stage2_set_owner_locked(phys, PAGE_SIZE, PKVM_ID_HYP); case PKVM_PAGE_SHARED_OWNED: prot = pkvm_mkstate(PKVM_HOST_MEM_PROT, PKVM_PAGE_SHARED_BORROWED); break; -- 2.36.1.124.g0e6072fb45-goog 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 Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (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 01496C433F5 for ; Thu, 19 May 2022 13:46:55 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender: Content-Transfer-Encoding:Content-Type:List-Subscribe:List-Help:List-Post: List-Archive:List-Unsubscribe:List-Id:MIME-Version:References:In-Reply-To: Message-Id:Date:Subject:Cc:To:From:Reply-To:Content-ID:Content-Description: Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID: List-Owner; bh=+2daAGnI8HPlfD5AYxMX/lwMNFDZM7muSO0Elkmdhzk=; b=RJUlcLZmQqWJkb SyFbSzejjGeQNJ4XFLFvvQ8utueFkNDlNHBZ3zTYx7pqdxxdneSSfgqynmDPlUoWNn8p+TlX+/3Ng 3Tjjz96YXjLndC641u6DknrjFxAKZa8i3mQ/PhCGn/Eftppm0lQXm3lnYl76+PYDkEDGXuDtxzN7Q noejG5XxwH9xVNhA0v9Sg2YD+AAA81kFHLrGBvl8p1J6x5qyMdkGrIxn5vSPt51baZGlYsYA6JBTD DeQ3gIK7kD9ubUVT2otAes4yeq2l5hfEzcge+EaRNQe+6PFg5fiNVo+cH0jyDo4Mz+Uw0PFCRsBus jW8vV/cDXK5xoEyG5HLQ==; 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charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org The 'pkvm_component_id' enum type provides constants to refer to the host and the hypervisor, yet this information is duplicated by the 'pkvm_hyp_id' constant. Remove the definition of 'pkvm_hyp_id' and move the 'pkvm_component_id' type definition to 'mem_protect.h' so that it can be used outside of the memory protection code. Signed-off-by: Will Deacon --- arch/arm64/kvm/hyp/include/nvhe/mem_protect.h | 6 +++++- arch/arm64/kvm/hyp/nvhe/mem_protect.c | 8 -------- arch/arm64/kvm/hyp/nvhe/setup.c | 2 +- 3 files changed, 6 insertions(+), 10 deletions(-) diff --git a/arch/arm64/kvm/hyp/include/nvhe/mem_protect.h b/arch/arm64/kvm/hyp/include/nvhe/mem_protect.h index 80e99836eac7..f5705a1e972f 100644 --- a/arch/arm64/kvm/hyp/include/nvhe/mem_protect.h +++ b/arch/arm64/kvm/hyp/include/nvhe/mem_protect.h @@ -51,7 +51,11 @@ struct host_kvm { }; extern struct host_kvm host_kvm; -extern const u8 pkvm_hyp_id; +/* This corresponds to page-table locking order */ +enum pkvm_component_id { + PKVM_ID_HOST, + PKVM_ID_HYP, +}; int __pkvm_prot_finalize(void); int __pkvm_host_share_hyp(u64 pfn); diff --git a/arch/arm64/kvm/hyp/nvhe/mem_protect.c b/arch/arm64/kvm/hyp/nvhe/mem_protect.c index 1e78acf9662e..ff86f5bd230f 100644 --- a/arch/arm64/kvm/hyp/nvhe/mem_protect.c +++ b/arch/arm64/kvm/hyp/nvhe/mem_protect.c @@ -26,8 +26,6 @@ struct host_kvm host_kvm; static struct hyp_pool host_s2_pool; -const u8 pkvm_hyp_id = 1; - static void host_lock_component(void) { hyp_spin_lock(&host_kvm.lock); @@ -380,12 +378,6 @@ void handle_host_mem_abort(struct kvm_cpu_context *host_ctxt) BUG_ON(ret && ret != -EAGAIN); } -/* This corresponds to locking order */ -enum pkvm_component_id { - PKVM_ID_HOST, - PKVM_ID_HYP, -}; - struct pkvm_mem_transition { u64 nr_pages; diff --git a/arch/arm64/kvm/hyp/nvhe/setup.c b/arch/arm64/kvm/hyp/nvhe/setup.c index 7d2b325efb50..311197a223e6 100644 --- a/arch/arm64/kvm/hyp/nvhe/setup.c +++ b/arch/arm64/kvm/hyp/nvhe/setup.c @@ -197,7 +197,7 @@ static int finalize_host_mappings_walker(u64 addr, u64 end, u32 level, state = pkvm_getstate(kvm_pgtable_hyp_pte_prot(pte)); switch (state) { case PKVM_PAGE_OWNED: - return host_stage2_set_owner_locked(phys, PAGE_SIZE, pkvm_hyp_id); + return host_stage2_set_owner_locked(phys, PAGE_SIZE, PKVM_ID_HYP); case PKVM_PAGE_SHARED_OWNED: prot = pkvm_mkstate(PKVM_HOST_MEM_PROT, PKVM_PAGE_SHARED_BORROWED); break; -- 2.36.1.124.g0e6072fb45-goog _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel