arm64: kvm: Split hyp/timer-sr.c to VHE/nVHE
timer-sr.c contains a HVC handler for setting CNTVOFF_EL2 and two helper
functions for controlling access to physical counter. The former is used by
both VHE/nVHE and is duplicated, the latter are used only by nVHE and moved
to nvhe/timer-sr.c.
Signed-off-by: David Brazdil <dbrazdil@google.com>
diff --git a/arch/arm64/include/asm/kvm_hyp.h b/arch/arm64/include/asm/kvm_hyp.h
index c8bbd22..8a1510f 100644
--- a/arch/arm64/include/asm/kvm_hyp.h
+++ b/arch/arm64/include/asm/kvm_hyp.h
@@ -63,8 +63,10 @@
void __vgic_v3_restore_aprs(struct vgic_v3_cpu_if *cpu_if);
int __vgic_v3_perform_cpuif_access(struct kvm_vcpu *vcpu);
+#ifdef __KVM_NVHE_HYPERVISOR__
void __timer_enable_traps(struct kvm_vcpu *vcpu);
void __timer_disable_traps(struct kvm_vcpu *vcpu);
+#endif
#ifdef __KVM_NVHE_HYPERVISOR__
void __sysreg_save_state_nvhe(struct kvm_cpu_context *ctxt);
diff --git a/arch/arm64/kernel/image-vars.h b/arch/arm64/kernel/image-vars.h
index d3a226f..e38b1a3 100644
--- a/arch/arm64/kernel/image-vars.h
+++ b/arch/arm64/kernel/image-vars.h
@@ -76,11 +76,6 @@
KVM_NVHE_ALIAS(__fpsimd_restore_state);
KVM_NVHE_ALIAS(__fpsimd_save_state);
-/* Symbols defined in timer-sr.c (not yet compiled with nVHE build rules). */
-KVM_NVHE_ALIAS(__kvm_timer_set_cntvoff);
-KVM_NVHE_ALIAS(__timer_disable_traps);
-KVM_NVHE_ALIAS(__timer_enable_traps);
-
/* Symbols defined in vgic-v2-cpuif-proxy.c (not yet compiled with nVHE build rules). */
KVM_NVHE_ALIAS(__vgic_v2_perform_cpuif_access);
diff --git a/arch/arm64/kvm/hyp/Makefile b/arch/arm64/kvm/hyp/Makefile
index cf363ba..59e2c11 100644
--- a/arch/arm64/kvm/hyp/Makefile
+++ b/arch/arm64/kvm/hyp/Makefile
@@ -9,7 +9,7 @@
obj-$(CONFIG_KVM) += hyp.o vhe/ nvhe/
obj-$(CONFIG_KVM_INDIRECT_VECTORS) += smccc_wa.o
-hyp-y := vgic-v3-sr.o timer-sr.o aarch32.o vgic-v2-cpuif-proxy.o entry.o \
+hyp-y := vgic-v3-sr.o aarch32.o vgic-v2-cpuif-proxy.o entry.o \
fpsimd.o
# KVM code is run at a different exception code with a different map, so
diff --git a/arch/arm64/kvm/hyp/nvhe/Makefile b/arch/arm64/kvm/hyp/nvhe/Makefile
index d242e43..6067c2a 100644
--- a/arch/arm64/kvm/hyp/nvhe/Makefile
+++ b/arch/arm64/kvm/hyp/nvhe/Makefile
@@ -7,7 +7,8 @@
ccflags-y := -D__KVM_NVHE_HYPERVISOR__ -fno-stack-protector \
-DDISABLE_BRANCH_PROFILING $(DISABLE_STACKLEAK_PLUGIN)
-obj-y := sysreg-sr.o debug-sr.o switch.o tlb.o hyp-init.o ../hyp-entry.o
+obj-y := timer-sr.o sysreg-sr.o debug-sr.o switch.o tlb.o hyp-init.o \
+ ../hyp-entry.o
obj-y := $(patsubst %.o,%.hyp.o,$(obj-y))
extra-y := $(patsubst %.hyp.o,%.hyp.tmp.o,$(obj-y))
diff --git a/arch/arm64/kvm/hyp/timer-sr.c b/arch/arm64/kvm/hyp/nvhe/timer-sr.c
similarity index 95%
rename from arch/arm64/kvm/hyp/timer-sr.c
rename to arch/arm64/kvm/hyp/nvhe/timer-sr.c
index fb5c0be..42c8ed71 100644
--- a/arch/arm64/kvm/hyp/timer-sr.c
+++ b/arch/arm64/kvm/hyp/nvhe/timer-sr.c
@@ -10,7 +10,7 @@
#include <asm/kvm_hyp.h>
-void __hyp_text __kvm_timer_set_cntvoff(u64 cntvoff)
+void __kvm_timer_set_cntvoff(u64 cntvoff)
{
write_sysreg(cntvoff, cntvoff_el2);
}
diff --git a/arch/arm64/kvm/hyp/vhe/Makefile b/arch/arm64/kvm/hyp/vhe/Makefile
index 04c9e88..149b859 100644
--- a/arch/arm64/kvm/hyp/vhe/Makefile
+++ b/arch/arm64/kvm/hyp/vhe/Makefile
@@ -7,7 +7,7 @@
ccflags-y := -D__KVM_VHE_HYPERVISOR__ -fno-stack-protector \
-DDISABLE_BRANCH_PROFILING $(DISABLE_STACKLEAK_PLUGIN)
-obj-y := sysreg-sr.o debug-sr.o switch.o tlb.o ../hyp-entry.o
+obj-y := timer-sr.o sysreg-sr.o debug-sr.o switch.o tlb.o ../hyp-entry.o
# KVM code is run at a different exception code with a different map, so
# compiler instrumentation that inserts callbacks or checks into the code may
diff --git a/arch/arm64/kvm/hyp/vhe/timer-sr.c b/arch/arm64/kvm/hyp/vhe/timer-sr.c
new file mode 100644
index 0000000..4cda674
--- /dev/null
+++ b/arch/arm64/kvm/hyp/vhe/timer-sr.c
@@ -0,0 +1,12 @@
+// SPDX-License-Identifier: GPL-2.0-only
+/*
+ * Copyright (C) 2012-2015 - ARM Ltd
+ * Author: Marc Zyngier <marc.zyngier@arm.com>
+ */
+
+#include <asm/kvm_hyp.h>
+
+void __kvm_timer_set_cntvoff(u64 cntvoff)
+{
+ write_sysreg(cntvoff, cntvoff_el2);
+}
