From: Lu Feifei lufeifei@wxiat.com
Sunway inclusion category: feature bugzilla: https://gitee.com/openeuler/kernel/issues/I56WV8
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In guest os, ldl_u and stl_u may access mmio in some cases, so we have to decode and handle this issue when exit mmio.
Signed-off-by: Lu Feifei lufeifei@wxiat.com
Signed-off-by: Gu Zitao guzitao@wxiat.com Acked-by: Xie XiuQi xiexiuqi@huawei.com Signed-off-by: Zheng Zengkai zhengzengkai@huawei.com --- arch/sw_64/kvm/emulate.c | 2 ++ 1 file changed, 2 insertions(+)
diff --git a/arch/sw_64/kvm/emulate.c b/arch/sw_64/kvm/emulate.c index 1552119e6346..bcc06c0dd618 100644 --- a/arch/sw_64/kvm/emulate.c +++ b/arch/sw_64/kvm/emulate.c @@ -32,6 +32,7 @@ void sw64_decode(struct kvm_vcpu *vcpu, unsigned int insn, struct kvm_run *run) vcpu->arch.mmio_decode.rt = ra; break; case 0x23: /* LDL */ + case 0x24: /* LDL_U */ run->mmio.is_write = 0; run->mmio.len = 8; vcpu->arch.mmio_decode.rt = ra; @@ -52,6 +53,7 @@ void sw64_decode(struct kvm_vcpu *vcpu, unsigned int insn, struct kvm_run *run) run->mmio.len = 4; break; case 0x2b: /* STL */ + case 0x2c: /* STL_U */ run->mmio.is_write = 1; *(unsigned long *)run->mmio.data = vcpu_get_reg(vcpu, ra); run->mmio.len = 8;