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authorDavid Brazdil <dbrazdil@google.com>2020-12-08 17:24:48 +0300
committerMarc Zyngier <maz@kernel.org>2020-12-22 13:48:50 +0300
commit7a96a0687b80a1870c689418d7b72012c8bdd53d (patch)
treea342dae9f239d8e1908e06168272d154169fbd33 /arch/arm64/kvm/va_layout.c
parentff367fe473a9857160c17827931375a899076394 (diff)
downloadlinux-7a96a0687b80a1870c689418d7b72012c8bdd53d.tar.xz
KVM: arm64: Use lm_alias in nVHE-only VA conversion
init_hyp_physvirt_offset() computes PA from a kernel VA. Conversion to kernel linear-map is required first but the code used kvm_ksym_ref() for this purpose. Under VHE that is a NOP and resulted in a runtime warning. Replace kvm_ksym_ref with lm_alias. Reported-by: Qian Cai <qcai@redhat.com> Signed-off-by: David Brazdil <dbrazdil@google.com> Signed-off-by: Marc Zyngier <maz@kernel.org> Link: https://lore.kernel.org/r/20201208142452.87237-3-dbrazdil@google.com
Diffstat (limited to 'arch/arm64/kvm/va_layout.c')
-rw-r--r--arch/arm64/kvm/va_layout.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/arch/arm64/kvm/va_layout.c b/arch/arm64/kvm/va_layout.c
index d8cc51bd60bf..914732b88c69 100644
--- a/arch/arm64/kvm/va_layout.c
+++ b/arch/arm64/kvm/va_layout.c
@@ -42,7 +42,7 @@ static void init_hyp_physvirt_offset(void)
u64 kern_va, hyp_va;
/* Compute the offset from the hyp VA and PA of a random symbol. */
- kern_va = (u64)kvm_ksym_ref(__hyp_text_start);
+ kern_va = (u64)lm_alias(__hyp_text_start);
hyp_va = __early_kern_hyp_va(kern_va);
CHOOSE_NVHE_SYM(hyp_physvirt_offset) = (s64)__pa(kern_va) - (s64)hyp_va;
}