[PATCH v3 2/4] LoongArch: KVM: Add LBT feature detection with cpucfg

[Bibo Mao]

Loongson Binary Translation (LBT) feature is defined in register
cpucfg2. Here LBT capability detection for VM is added.

Signed-off-by: Bibo Mao <maobibo@xxxxxxxxxxx>
---
 arch/loongarch/kvm/vcpu.c | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/arch/loongarch/kvm/vcpu.c b/arch/loongarch/kvm/vcpu.c
index 8f80d1a2dcbb..c32aff8e261e 100644
--- a/arch/loongarch/kvm/vcpu.c
+++ b/arch/loongarch/kvm/vcpu.c
@@ -537,6 +537,12 @@ static int _kvm_get_cpucfg_mask(int id, u64 *v)
 			*v |= CPUCFG2_LSX;
 		if (cpu_has_lasx)
 			*v |= CPUCFG2_LASX;
+		if (cpu_has_lbt_x86)
+			*v |= CPUCFG2_X86BT;
+		if (cpu_has_lbt_arm)
+			*v |= CPUCFG2_ARMBT;
+		if (cpu_has_lbt_mips)
+			*v |= CPUCFG2_MIPSBT;
 
 		return 0;
 	case LOONGARCH_CPUCFG3:
-- 
2.39.3