We don't want to expose complicated features to guests until we have
a good grasp on the basic CPU emulation. So let's pretend that RAS,
doesn't exist in a nested guest. We already hide the feature bits,
let's now make sure VDISR_EL1 will UNDEF.
Signed-off-by: Marc Zyngier <maz@xxxxxxxxxx>
---
arch/arm64/kvm/sys_regs.c | 1 +
1 file changed, 1 insertion(+)
diff --git a/arch/arm64/kvm/sys_regs.c b/arch/arm64/kvm/sys_regs.c
index 4c5bb883773d..7405053a6dc8 100644
--- a/arch/arm64/kvm/sys_regs.c
+++ b/arch/arm64/kvm/sys_regs.c
@@ -2764,6 +2764,7 @@ static const struct sys_reg_desc sys_reg_descs[] = {
EL2_REG(VBAR_EL2, access_rw, reset_val, 0),
EL2_REG(RVBAR_EL2, access_rw, reset_val, 0),
{ SYS_DESC(SYS_RMR_EL2), trap_undef },
+ { SYS_DESC(SYS_VDISR_EL2), trap_undef },
EL2_REG(CONTEXTIDR_EL2, access_rw, reset_val, 0),
EL2_REG(TPIDR_EL2, access_rw, reset_val, 0),
--
2.39.2
