From: Ben Gardon <bgardon@google.com>
To: linux-kernel@vger.kernel.org, kvm@vger.kernel.org
Cc: Paolo Bonzini <pbonzini@redhat.com>, Peter Xu <peterx@redhat.com>,
Sean Christopherson <seanjc@google.com>,
David Matlack <dmatlack@google.com>,
Vipin Sharma <vipinsh@google.com>,
Ricardo Koller <ricarkol@google.com>,
Ben Gardon <bgardon@google.com>
Subject: [PATCH 04/21] KVM: x86/MMU: Add shadow_mmu.(c|h)
Date: Thu, 2 Feb 2023 18:27:52 +0000 [thread overview]
Message-ID: <20230202182809.1929122-5-bgardon@google.com> (raw)
In-Reply-To: <20230202182809.1929122-1-bgardon@google.com>
As a first step to splitting the Shadow MMU out of KVM MMU common code,
add separate files for it with some of the boilerplate and includes the
Shadow MMU will need.
No functional change intended.
Signed-off-by: Ben Gardon <bgardon@google.com>
---
arch/x86/kvm/Makefile | 2 +-
arch/x86/kvm/mmu/mmu.c | 1 +
arch/x86/kvm/mmu/shadow_mmu.c | 23 +++++++++++++++++++++++
arch/x86/kvm/mmu/shadow_mmu.h | 21 +++++++++++++++++++++
4 files changed, 46 insertions(+), 1 deletion(-)
create mode 100644 arch/x86/kvm/mmu/shadow_mmu.c
create mode 100644 arch/x86/kvm/mmu/shadow_mmu.h
diff --git a/arch/x86/kvm/Makefile b/arch/x86/kvm/Makefile
index 80e3fe184d17e..d6e94660b006e 100644
--- a/arch/x86/kvm/Makefile
+++ b/arch/x86/kvm/Makefile
@@ -12,7 +12,7 @@ include $(srctree)/virt/kvm/Makefile.kvm
kvm-y += x86.o emulate.o i8259.o irq.o lapic.o \
i8254.o ioapic.o irq_comm.o cpuid.o pmu.o mtrr.o \
hyperv.o debugfs.o mmu/mmu.o mmu/page_track.o \
- mmu/spte.o
+ mmu/spte.o mmu/shadow_mmu.o
ifdef CONFIG_HYPERV
kvm-y += kvm_onhyperv.o
diff --git a/arch/x86/kvm/mmu/mmu.c b/arch/x86/kvm/mmu/mmu.c
index 3674bde2203b2..752c38d625a32 100644
--- a/arch/x86/kvm/mmu/mmu.c
+++ b/arch/x86/kvm/mmu/mmu.c
@@ -21,6 +21,7 @@
#include "mmu.h"
#include "mmu_internal.h"
#include "tdp_mmu.h"
+#include "shadow_mmu.h"
#include "x86.h"
#include "kvm_cache_regs.h"
#include "smm.h"
diff --git a/arch/x86/kvm/mmu/shadow_mmu.c b/arch/x86/kvm/mmu/shadow_mmu.c
new file mode 100644
index 0000000000000..eee5a6796d9b0
--- /dev/null
+++ b/arch/x86/kvm/mmu/shadow_mmu.c
@@ -0,0 +1,23 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * KVM Shadow MMU
+ *
+ * Extracted from mmu.c
+ *
+ * Copyright (C) 2006 Qumranet, Inc.
+ * Copyright 2010 Red Hat, Inc. and/or its affiliates.
+ * Copyright (C) 2023, Google, Inc.
+ *
+ * Original authors:
+ * Yaniv Kamay <yaniv@qumranet.com>
+ * Avi Kivity <avi@qumranet.com>
+ */
+#include "mmu.h"
+#include "mmu_internal.h"
+#include "mmutrace.h"
+#include "shadow_mmu.h"
+#include "spte.h"
+
+#include <asm/vmx.h>
+#include <asm/cmpxchg.h>
+#include <trace/events/kvm.h>
diff --git a/arch/x86/kvm/mmu/shadow_mmu.h b/arch/x86/kvm/mmu/shadow_mmu.h
new file mode 100644
index 0000000000000..2bfba6ad20688
--- /dev/null
+++ b/arch/x86/kvm/mmu/shadow_mmu.h
@@ -0,0 +1,21 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/*
+ * KVM Shadow MMU
+ *
+ * Extracted from mmu.c
+ *
+ * Copyright (C) 2006 Qumranet, Inc.
+ * Copyright 2010 Red Hat, Inc. and/or its affiliates.
+ * Copyright (C) 2023, Google, Inc.
+ *
+ * Original authors:
+ * Yaniv Kamay <yaniv@qumranet.com>
+ * Avi Kivity <avi@qumranet.com>
+ */
+
+#ifndef __KVM_X86_MMU_SHADOW_MMU_H
+#define __KVM_X86_MMU_SHADOW_MMU_H
+
+#include <linux/kvm_host.h>
+
+#endif /* __KVM_X86_MMU_SHADOW_MMU_H */
--
2.39.1.519.gcb327c4b5f-goog
next prev parent reply other threads:[~2023-02-02 18:28 UTC|newest]
Thread overview: 30+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-02-02 18:27 [PATCH 00/21] KVM: x86/MMU: Formalize the Shadow MMU Ben Gardon
2023-02-02 18:27 ` [PATCH 01/21] KVM: x86/mmu: Rename slot rmap walkers to add clarity and clean up code Ben Gardon
2023-02-02 18:27 ` [PATCH 02/21] KVM: x86/mmu: Replace comment with an actual lockdep assertion on mmu_lock Ben Gardon
2023-02-02 18:27 ` [PATCH 03/21] KVM: x86/mmu: Clean up mmu.c functions that put return type on separate line Ben Gardon
2023-02-02 18:27 ` Ben Gardon [this message]
2023-02-02 18:27 ` [PATCH 05/21] KVM: x86/MMU: Expose functions for the Shadow MMU Ben Gardon
2023-02-02 18:27 ` [PATCH 06/21] KVM: x86/mmu: Get rid of is_cpuid_PSE36() Ben Gardon
2023-03-20 18:51 ` Sean Christopherson
2023-02-02 18:27 ` [PATCH 07/21] KVM: x86/MMU: Move the Shadow MMU implementation to shadow_mmu.c Ben Gardon
2023-02-02 18:27 ` [PATCH 08/21] KVM: x86/MMU: Expose functions for paging_tmpl.h Ben Gardon
2023-02-02 18:27 ` [PATCH 09/21] KVM: x86/MMU: Move paging_tmpl.h includes to shadow_mmu.c Ben Gardon
2023-03-20 18:41 ` Sean Christopherson
2023-03-21 18:43 ` Ben Gardon
2023-02-02 18:27 ` [PATCH 10/21] KVM: x86/MMU: Clean up Shadow MMU exports Ben Gardon
2023-02-02 18:27 ` [PATCH 11/21] KVM: x86/MMU: Cleanup shrinker interface with Shadow MMU Ben Gardon
2023-02-04 13:52 ` kernel test robot
2023-02-04 19:10 ` kernel test robot
2023-02-02 18:28 ` [PATCH 12/21] KVM: x86/MMU: Clean up naming of exported Shadow MMU functions Ben Gardon
2023-02-02 18:28 ` [PATCH 13/21] KVM: x86/MMU: Fix naming on prepare / commit zap page functions Ben Gardon
2023-02-02 18:28 ` [PATCH 14/21] KVM: x86/MMU: Factor Shadow MMU wrprot / clear dirty ops out of mmu.c Ben Gardon
2023-02-02 18:28 ` [PATCH 15/21] KVM: x86/MMU: Remove unneeded exports from shadow_mmu.c Ben Gardon
2023-02-04 14:44 ` kernel test robot
2023-02-02 18:28 ` [PATCH 16/21] KVM: x86/MMU: Wrap uses of kvm_handle_gfn_range in mmu.c Ben Gardon
2023-02-02 18:28 ` [PATCH 17/21] KVM: x86/MMU: Add kvm_shadow_mmu_ to the last few functions in shadow_mmu.h Ben Gardon
2023-02-02 18:28 ` [PATCH 18/21] KVM: x86/mmu: Move split cache topup functions to shadow_mmu.c Ben Gardon
2023-02-02 18:28 ` [PATCH 19/21] KVM: x86/mmu: Move Shadow MMU part of kvm_mmu_zap_all() to shadow_mmu.h Ben Gardon
2023-02-02 18:28 ` [PATCH 20/21] KVM: x86/mmu: Move Shadow MMU init/teardown to shadow_mmu.c Ben Gardon
2023-02-02 18:28 ` [PATCH 21/21] KVM: x86/mmu: Split out Shadow MMU lockless walk begin/end Ben Gardon
2023-03-20 19:09 ` [PATCH 00/21] KVM: x86/MMU: Formalize the Shadow MMU Sean Christopherson
2023-03-23 23:02 ` Sean Christopherson
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