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Diffstat (limited to 'arch/arm64/kvm/hyp/exception.c')
-rw-r--r--arch/arm64/kvm/hyp/exception.c20
1 files changed, 6 insertions, 14 deletions
diff --git a/arch/arm64/kvm/hyp/exception.c b/arch/arm64/kvm/hyp/exception.c
index 95d186e0bf54..bef40ddb16db 100644
--- a/arch/arm64/kvm/hyp/exception.c
+++ b/arch/arm64/kvm/hyp/exception.c
@@ -22,36 +22,28 @@
static inline u64 __vcpu_read_sys_reg(const struct kvm_vcpu *vcpu, int reg)
{
- u64 val;
-
- if (unlikely(vcpu_has_nv(vcpu)))
+ if (has_vhe())
return vcpu_read_sys_reg(vcpu, reg);
- else if (vcpu_get_flag(vcpu, SYSREGS_ON_CPU) &&
- __vcpu_read_sys_reg_from_cpu(reg, &val))
- return val;
return __vcpu_sys_reg(vcpu, reg);
}
static inline void __vcpu_write_sys_reg(struct kvm_vcpu *vcpu, u64 val, int reg)
{
- if (unlikely(vcpu_has_nv(vcpu)))
+ if (has_vhe())
vcpu_write_sys_reg(vcpu, val, reg);
- else if (!vcpu_get_flag(vcpu, SYSREGS_ON_CPU) ||
- !__vcpu_write_sys_reg_to_cpu(val, reg))
+ else
__vcpu_assign_sys_reg(vcpu, reg, val);
}
static void __vcpu_write_spsr(struct kvm_vcpu *vcpu, unsigned long target_mode,
u64 val)
{
- if (unlikely(vcpu_has_nv(vcpu))) {
+ if (has_vhe()) {
if (target_mode == PSR_MODE_EL1h)
vcpu_write_sys_reg(vcpu, val, SPSR_EL1);
else
vcpu_write_sys_reg(vcpu, val, SPSR_EL2);
- } else if (has_vhe()) {
- write_sysreg_el1(val, SYS_SPSR);
} else {
__vcpu_assign_sys_reg(vcpu, SPSR_EL1, val);
}
@@ -59,7 +51,7 @@ static void __vcpu_write_spsr(struct kvm_vcpu *vcpu, unsigned long target_mode,
static void __vcpu_write_spsr_abt(struct kvm_vcpu *vcpu, u64 val)
{
- if (has_vhe())
+ if (has_vhe() && vcpu_get_flag(vcpu, SYSREGS_ON_CPU))
write_sysreg(val, spsr_abt);
else
vcpu->arch.ctxt.spsr_abt = val;
@@ -67,7 +59,7 @@ static void __vcpu_write_spsr_abt(struct kvm_vcpu *vcpu, u64 val)
static void __vcpu_write_spsr_und(struct kvm_vcpu *vcpu, u64 val)
{
- if (has_vhe())
+ if (has_vhe() && vcpu_get_flag(vcpu, SYSREGS_ON_CPU))
write_sysreg(val, spsr_und);
else
vcpu->arch.ctxt.spsr_und = val;