From: Quentin Perret <qperret@google.com>
To: catalin.marinas@arm.com, will@kernel.org, maz@kernel.org,
james.morse@arm.com, julien.thierry.kdev@gmail.com,
suzuki.poulose@arm.com
Cc: android-kvm@google.com, linux-kernel@vger.kernel.org,
kernel-team@android.com, kvmarm@lists.cs.columbia.edu,
linux-arm-kernel@lists.infradead.org, tabba@google.com,
mark.rutland@arm.com, dbrazdil@google.com,
mate.toth-pal@arm.com, seanjc@google.com, qperret@google.com,
robh+dt@kernel.org, ardb@kernel.org
Subject: [PATCH v4 11/34] KVM: arm64: Stub CONFIG_DEBUG_LIST at Hyp
Date: Wed, 10 Mar 2021 17:57:28 +0000 [thread overview]
Message-ID: <20210310175751.3320106-12-qperret@google.com> (raw)
In-Reply-To: <20210310175751.3320106-1-qperret@google.com>
In order to use the kernel list library at EL2, introduce stubs for the
CONFIG_DEBUG_LIST out-of-lines calls.
Signed-off-by: Quentin Perret <qperret@google.com>
---
arch/arm64/kvm/hyp/nvhe/Makefile | 2 +-
arch/arm64/kvm/hyp/nvhe/stub.c | 22 ++++++++++++++++++++++
2 files changed, 23 insertions(+), 1 deletion(-)
create mode 100644 arch/arm64/kvm/hyp/nvhe/stub.c
diff --git a/arch/arm64/kvm/hyp/nvhe/Makefile b/arch/arm64/kvm/hyp/nvhe/Makefile
index 24ff99e2eac5..144da72ad510 100644
--- a/arch/arm64/kvm/hyp/nvhe/Makefile
+++ b/arch/arm64/kvm/hyp/nvhe/Makefile
@@ -13,7 +13,7 @@ lib-objs := clear_page.o copy_page.o memcpy.o memset.o
lib-objs := $(addprefix ../../../lib/, $(lib-objs))
obj-y := timer-sr.o sysreg-sr.o debug-sr.o switch.o tlb.o hyp-init.o host.o \
- hyp-main.o hyp-smp.o psci-relay.o early_alloc.o
+ hyp-main.o hyp-smp.o psci-relay.o early_alloc.o stub.o
obj-y += ../vgic-v3-sr.o ../aarch32.o ../vgic-v2-cpuif-proxy.o ../entry.o \
../fpsimd.o ../hyp-entry.o ../exception.o
obj-y += $(lib-objs)
diff --git a/arch/arm64/kvm/hyp/nvhe/stub.c b/arch/arm64/kvm/hyp/nvhe/stub.c
new file mode 100644
index 000000000000..c0aa6bbfd79d
--- /dev/null
+++ b/arch/arm64/kvm/hyp/nvhe/stub.c
@@ -0,0 +1,22 @@
+// SPDX-License-Identifier: GPL-2.0-only
+/*
+ * Stubs for out-of-line function calls caused by re-using kernel
+ * infrastructure at EL2.
+ *
+ * Copyright (C) 2020 - Google LLC
+ */
+
+#include <linux/list.h>
+
+#ifdef CONFIG_DEBUG_LIST
+bool __list_add_valid(struct list_head *new, struct list_head *prev,
+ struct list_head *next)
+{
+ return true;
+}
+
+bool __list_del_entry_valid(struct list_head *entry)
+{
+ return true;
+}
+#endif
--
2.30.1.766.gb4fecdf3b7-goog
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next prev parent reply other threads:[~2021-03-10 18:02 UTC|newest]
Thread overview: 59+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-03-10 17:57 [PATCH v4 00/34] KVM: arm64: A stage 2 for the host Quentin Perret
2021-03-10 17:57 ` [PATCH v4 01/34] arm64: lib: Annotate {clear, copy}_page() as position-independent Quentin Perret
2021-03-10 17:57 ` [PATCH v4 02/34] KVM: arm64: Link position-independent string routines into .hyp.text Quentin Perret
2021-03-10 17:57 ` [PATCH v4 03/34] arm64: kvm: Add standalone ticket spinlock implementation for use at hyp Quentin Perret
2021-03-10 17:57 ` [PATCH v4 04/34] KVM: arm64: Initialize kvm_nvhe_init_params early Quentin Perret
2021-03-10 17:57 ` [PATCH v4 05/34] KVM: arm64: Avoid free_page() in page-table allocator Quentin Perret
2021-03-10 17:57 ` [PATCH v4 06/34] KVM: arm64: Factor memory allocation out of pgtable.c Quentin Perret
2021-03-11 16:09 ` Will Deacon
2021-03-10 17:57 ` [PATCH v4 07/34] KVM: arm64: Introduce a BSS section for use at Hyp Quentin Perret
2021-03-10 17:57 ` [PATCH v4 08/34] KVM: arm64: Make kvm_call_hyp() a function call " Quentin Perret
2021-03-10 17:57 ` [PATCH v4 09/34] KVM: arm64: Allow using kvm_nvhe_sym() in hyp code Quentin Perret
2021-03-10 17:57 ` [PATCH v4 10/34] KVM: arm64: Introduce an early Hyp page allocator Quentin Perret
2021-03-10 17:57 ` Quentin Perret [this message]
2021-03-11 16:11 ` [PATCH v4 11/34] KVM: arm64: Stub CONFIG_DEBUG_LIST at Hyp Will Deacon
2021-03-10 17:57 ` [PATCH v4 12/34] KVM: arm64: Introduce a Hyp buddy page allocator Quentin Perret
2021-03-11 16:14 ` Will Deacon
2021-03-10 17:57 ` [PATCH v4 13/34] KVM: arm64: Enable access to sanitized CPU features at EL2 Quentin Perret
2021-03-11 19:36 ` Will Deacon
2021-03-12 6:34 ` Quentin Perret
2021-03-12 9:25 ` Will Deacon
2021-03-10 17:57 ` [PATCH v4 14/34] KVM: arm64: Factor out vector address calculation Quentin Perret
2021-03-10 17:57 ` [PATCH v4 15/34] arm64: asm: Provide set_sctlr_el2 macro Quentin Perret
2021-03-11 16:22 ` Will Deacon
2021-03-10 17:57 ` [PATCH v4 16/34] KVM: arm64: Prepare the creation of s1 mappings at EL2 Quentin Perret
2021-03-11 16:21 ` Will Deacon
2021-03-10 17:57 ` [PATCH v4 17/34] KVM: arm64: Elevate hypervisor mappings creation " Quentin Perret
2021-03-11 17:28 ` Will Deacon
2021-03-10 17:57 ` [PATCH v4 18/34] KVM: arm64: Use kvm_arch for stage 2 pgtable Quentin Perret
2021-03-10 17:57 ` [PATCH v4 19/34] KVM: arm64: Use kvm_arch in kvm_s2_mmu Quentin Perret
2021-03-10 17:57 ` [PATCH v4 20/34] KVM: arm64: Set host stage 2 using kvm_nvhe_init_params Quentin Perret
2021-03-10 17:57 ` [PATCH v4 21/34] KVM: arm64: Refactor kvm_arm_setup_stage2() Quentin Perret
2021-03-10 17:57 ` [PATCH v4 22/34] KVM: arm64: Refactor __load_guest_stage2() Quentin Perret
2021-03-10 17:57 ` [PATCH v4 23/34] KVM: arm64: Refactor __populate_fault_info() Quentin Perret
2021-03-10 17:57 ` [PATCH v4 24/34] KVM: arm64: Make memcache anonymous in pgtable allocator Quentin Perret
2021-03-10 17:57 ` [PATCH v4 25/34] KVM: arm64: Reserve memory for host stage 2 Quentin Perret
2021-03-10 17:57 ` [PATCH v4 26/34] KVM: arm64: Sort the hypervisor memblocks Quentin Perret
2021-03-10 17:57 ` [PATCH v4 27/34] KVM: arm64: Always zero invalid PTEs Quentin Perret
2021-03-11 17:33 ` Will Deacon
2021-03-12 9:15 ` Quentin Perret
2021-03-10 17:57 ` [PATCH v4 28/34] KVM: arm64: Use page-table to track page ownership Quentin Perret
2021-03-11 18:38 ` Will Deacon
2021-03-12 6:23 ` Quentin Perret
2021-03-12 9:32 ` Will Deacon
2021-03-12 10:13 ` Quentin Perret
2021-03-12 11:18 ` Will Deacon
2021-03-12 11:45 ` Quentin Perret
2021-03-10 17:57 ` [PATCH v4 29/34] KVM: arm64: Refactor stage2_map_set_prot_attr() Quentin Perret
2021-03-11 18:48 ` Will Deacon
2021-03-12 5:10 ` Quentin Perret
2021-03-10 17:57 ` [PATCH v4 30/34] KVM: arm64: Add kvm_pgtable_stage2_find_range() Quentin Perret
2021-03-11 19:04 ` Will Deacon
2021-03-12 5:32 ` Quentin Perret
2021-03-12 9:40 ` Will Deacon
2021-03-10 17:57 ` [PATCH v4 31/34] KVM: arm64: Wrap the host with a stage 2 Quentin Perret
2021-03-11 19:09 ` Will Deacon
2021-03-10 17:57 ` [PATCH v4 32/34] KVM: arm64: Page-align the .hyp sections Quentin Perret
2021-03-10 17:57 ` [PATCH v4 33/34] KVM: arm64: Disable PMU support in protected mode Quentin Perret
2021-03-10 17:57 ` [PATCH v4 34/34] KVM: arm64: Protect the .hyp sections from the host Quentin Perret
2021-03-11 19:17 ` Will Deacon
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