With FEAT_NV2, a bunch of system register writes are turned into
memory writes. This is specially the fate of the EL12 registers
that the guest hypervisor manipulates out of context.
Remove the trap descriptors for those, as they are never going
to be used again.
Signed-off-by: Marc Zyngier <maz@xxxxxxxxxx>
---
arch/arm64/kvm/sys_regs.c | 15 ---------------
1 file changed, 15 deletions(-)
diff --git a/arch/arm64/kvm/sys_regs.c b/arch/arm64/kvm/sys_regs.c
index 4aacce494ee2..6405d9ebc28a 100644
--- a/arch/arm64/kvm/sys_regs.c
+++ b/arch/arm64/kvm/sys_regs.c
@@ -2577,21 +2577,6 @@ static const struct sys_reg_desc sys_reg_descs[] = {
EL2_REG(CNTVOFF_EL2, access_rw, reset_val, 0),
EL2_REG(CNTHCTL_EL2, access_rw, reset_val, 0),
- EL12_REG(SCTLR, access_vm_reg, reset_val, 0x00C50078),
- EL12_REG(CPACR, access_rw, reset_val, 0),
- EL12_REG(TTBR0, access_vm_reg, reset_unknown, 0),
- EL12_REG(TTBR1, access_vm_reg, reset_unknown, 0),
- EL12_REG(TCR, access_vm_reg, reset_val, 0),
- { SYS_DESC(SYS_SPSR_EL12), access_spsr},
- { SYS_DESC(SYS_ELR_EL12), access_elr},
- EL12_REG(AFSR0, access_vm_reg, reset_unknown, 0),
- EL12_REG(AFSR1, access_vm_reg, reset_unknown, 0),
- EL12_REG(ESR, access_vm_reg, reset_unknown, 0),
- EL12_REG(FAR, access_vm_reg, reset_unknown, 0),
- EL12_REG(MAIR, access_vm_reg, reset_unknown, 0),
- EL12_REG(AMAIR, access_vm_reg, reset_amair_el1, 0),
- EL12_REG(VBAR, access_rw, reset_val, 0),
- EL12_REG(CONTEXTIDR, access_vm_reg, reset_val, 0),
EL12_REG(CNTKCTL, access_rw, reset_val, 0),
EL2_REG(SP_EL2, NULL, reset_unknown, 0),
--
2.39.2
