From 4d4f52052ba8357f1591cb9bc3086541070711af Mon Sep 17 00:00:00 2001 From: Marc Zyngier Date: Wed, 8 Nov 2023 19:10:12 +0000 Subject: KVM: arm64: nv: Drop EL12 register traps that are redirected to VNCR 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. Reviewed-by: Oliver Upton Signed-off-by: Marc Zyngier --- arch/arm64/kvm/sys_regs.c | 15 --------------- 1 file changed, 15 deletions(-) (limited to 'arch') diff --git a/arch/arm64/kvm/sys_regs.c b/arch/arm64/kvm/sys_regs.c index 3eae84195d48..cdfc79ccc7a1 100644 --- a/arch/arm64/kvm/sys_regs.c +++ b/arch/arm64/kvm/sys_regs.c @@ -2566,21 +2566,6 @@ 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), -- cgit v1.2.3