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 6bd5e4084cee..7353d5eaeaca 100644
--- a/arch/arm64/kvm/sys_regs.c
+++ b/arch/arm64/kvm/sys_regs.c
@@ -2129,6 +2129,7 @@ static const struct sys_reg_desc sys_reg_descs[] = {
{ SYS_DESC(SYS_VBAR_EL2), access_rw, reset_val, VBAR_EL2, 0 },
{ SYS_DESC(SYS_RVBAR_EL2), access_rw, reset_val, RVBAR_EL2, 0 },
{ SYS_DESC(SYS_RMR_EL2), trap_undef },
+ { SYS_DESC(SYS_VDISR_EL2), trap_undef },
{ SYS_DESC(SYS_CONTEXTIDR_EL2), access_rw, reset_val, CONTEXTIDR_EL2, 0 },
{ SYS_DESC(SYS_TPIDR_EL2), access_rw, reset_val, TPIDR_EL2, 0 },
--
2.29.2
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