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authorGreg Kroah-Hartman <gregkh@linuxfoundation.org>2025-08-20 20:42:41 +0300
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2025-08-20 20:42:41 +0300
commit5c40cd7db64a2949f268d7467b9be551a565d14b (patch)
treefb8a67f6edcb0c9922c256a598d675c1c04051d6 /arch/arm64/kvm/hyp/exception.c
parent8bde384a2090759efc9b92f34300887d418a2a3a (diff)
parent25bf10be219d37d2fb221c93816a913f5f735530 (diff)
downloadlinux-rolling-stable.tar.xz
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'arch/arm64/kvm/hyp/exception.c')
-rw-r--r--arch/arm64/kvm/hyp/exception.c10
1 files changed, 6 insertions, 4 deletions
diff --git a/arch/arm64/kvm/hyp/exception.c b/arch/arm64/kvm/hyp/exception.c
index 424a5107cddb..9f5d837cc03f 100644
--- a/arch/arm64/kvm/hyp/exception.c
+++ b/arch/arm64/kvm/hyp/exception.c
@@ -26,7 +26,8 @@ static inline u64 __vcpu_read_sys_reg(const struct kvm_vcpu *vcpu, int reg)
if (unlikely(vcpu_has_nv(vcpu)))
return vcpu_read_sys_reg(vcpu, reg);
- else if (__vcpu_read_sys_reg_from_cpu(reg, &val))
+ 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);
@@ -36,8 +37,9 @@ static inline void __vcpu_write_sys_reg(struct kvm_vcpu *vcpu, u64 val, int reg)
{
if (unlikely(vcpu_has_nv(vcpu)))
vcpu_write_sys_reg(vcpu, val, reg);
- else if (!__vcpu_write_sys_reg_to_cpu(val, reg))
- __vcpu_sys_reg(vcpu, reg) = val;
+ else if (!vcpu_get_flag(vcpu, SYSREGS_ON_CPU) ||
+ !__vcpu_write_sys_reg_to_cpu(val, reg))
+ __vcpu_assign_sys_reg(vcpu, reg, val);
}
static void __vcpu_write_spsr(struct kvm_vcpu *vcpu, unsigned long target_mode,
@@ -51,7 +53,7 @@ static void __vcpu_write_spsr(struct kvm_vcpu *vcpu, unsigned long target_mode,
} else if (has_vhe()) {
write_sysreg_el1(val, SYS_SPSR);
} else {
- __vcpu_sys_reg(vcpu, SPSR_EL1) = val;
+ __vcpu_assign_sys_reg(vcpu, SPSR_EL1, val);
}
}