[PATCH v2 05/22] KVM: ARM64: Add a helper for CP15 registers reset to UNKNOWN
From: Shannon Zhao <hidden>
Date: 2015-09-11 08:54:58
Also in:
kvm, kvmarm
Subsystem:
arm64 port (aarch64 architecture), kernel virtual machine for arm64 (kvm/arm64), the rest · Maintainers:
Catalin Marinas, Will Deacon, Marc Zyngier, Oliver Upton, Linus Torvalds
From: Shannon Zhao <redacted> Signed-off-by: Shannon Zhao <redacted> --- arch/arm64/kvm/sys_regs.h | 8 ++++++++ 1 file changed, 8 insertions(+)
diff --git a/arch/arm64/kvm/sys_regs.h b/arch/arm64/kvm/sys_regs.h
index d411e25..a0b3811 100644
--- a/arch/arm64/kvm/sys_regs.h
+++ b/arch/arm64/kvm/sys_regs.h@@ -104,6 +104,14 @@ static inline void reset_unknown(struct kvm_vcpu *vcpu, vcpu_sys_reg(vcpu, r->reg) = 0x1de7ec7edbadc0deULL; } +static inline void reset_unknown_cp15(struct kvm_vcpu *vcpu, + const struct sys_reg_desc *r) +{ + BUG_ON(!r->reg); + BUG_ON(r->reg >= NR_COPRO_REGS); + vcpu_cp15(vcpu, r->reg) = 0xdecafbad; +} + static inline void reset_val(struct kvm_vcpu *vcpu, const struct sys_reg_desc *r) { BUG_ON(!r->reg);
--
2.0.4