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FROMGIT: KVM: arm64: Stub EXPORT_SYMBOL for nVHE EL2 code

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In order to ensure the module loader does not get confused if a symbol
is exported in EL2 nVHE code (as will be the case when we will compile
e.g. lib/memset.S into the EL2 object), make sure to stub all exports
using __DISABLE_EXPORTS in the nvhe folder.

Suggested-by: Ard Biesheuvel <ardb@kernel.org>
Signed-off-by: Quentin Perret <qperret@google.com>
Signed-off-by: Marc Zyngier <maz@kernel.org>
Link: https://lore.kernel.org/r/20210203141931.615898-3-qperret@google.com
(cherry picked from commit bbc075e01c
 git://git.kernel.org/pub/scm/linux/kernel/git/kvmarm/kvmarm.git next)
Signed-off-by: Will Deacon <willdeacon@google.com>
Change-Id: I99090963a702ffd4a68b99f2c2b6afebbec05426
Bug: 178098380
Test: atest VirtualizationHostTestCases on an EL2-enabled device
This commit is contained in:
Quentin Perret
2021-02-03 14:19:31 +00:00
committed by Will Deacon
parent ae24286b49
commit 916bf93d52
1 changed files with 2 additions and 2 deletions
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4
arch/arm64/kvm/hyp/nvhe/Makefile
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@@ -3,8 +3,8 @@
# Makefile for Kernel-based Virtual Machine module, HYP/nVHE part
#
asflags-y := -D__KVM_NVHE_HYPERVISOR__
ccflags-y := -D__KVM_NVHE_HYPERVISOR__
asflags-y := -D__KVM_NVHE_HYPERVISOR__ -D__DISABLE_EXPORTS
ccflags-y := -D__KVM_NVHE_HYPERVISOR__ -D__DISABLE_EXPORTS
hostprogs := gen-hyprel
HOST_EXTRACFLAGS += -I$(objtree)/include