From cc427cbb15375f1229e78908064cdff98138b8b1 Mon Sep 17 00:00:00 2001 From: Suzuki K Poulose Date: Mon, 5 Apr 2021 17:42:52 +0100 Subject: [PATCH] KVM: arm64: Handle access to TRFCR_EL1 Rather than falling to an "unhandled access", inject add an explicit "undefined access" for TRFCR_EL1 access from the guest. Cc: Marc Zyngier Cc: Will Deacon Cc: Mathieu Poirier Signed-off-by: Suzuki K Poulose Acked-by: Marc Zyngier Link: https://lore.kernel.org/r/20210405164307.1720226-6-suzuki.poulose@arm.com Signed-off-by: Mathieu Poirier --- 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 4f2f1e3..52fdb9a0 100644 --- a/arch/arm64/kvm/sys_regs.c +++ b/arch/arm64/kvm/sys_regs.c @@ -1472,6 +1472,7 @@ static const struct sys_reg_desc sys_reg_descs[] = { { SYS_DESC(SYS_GCR_EL1), undef_access }, { SYS_DESC(SYS_ZCR_EL1), NULL, reset_val, ZCR_EL1, 0, .visibility = sve_visibility }, + { SYS_DESC(SYS_TRFCR_EL1), undef_access }, { SYS_DESC(SYS_TTBR0_EL1), access_vm_reg, reset_unknown, TTBR0_EL1 }, { SYS_DESC(SYS_TTBR1_EL1), access_vm_reg, reset_unknown, TTBR1_EL1 }, { SYS_DESC(SYS_TCR_EL1), access_vm_reg, reset_val, TCR_EL1, 0 }, -- 2.7.4