From: Alexandru Elisei <alexandru.elisei@xxxxxxx> Don't read the register values for a running realm, because they don't reflect the actual hardware state of a realm. And don't try to read realm memory, because that will promptly lead to kvmtool being killed. Signed-off-by: Alexandru Elisei <alexandru.elisei@xxxxxxx> Signed-off-by: Suzuki K Poulose <suzuki.poulose@xxxxxxx> --- arm/aarch64/kvm-cpu.c | 8 ++++++++ 1 file changed, 8 insertions(+) diff --git a/arm/aarch64/kvm-cpu.c b/arm/aarch64/kvm-cpu.c index 32fa7609..a29a3413 100644 --- a/arm/aarch64/kvm-cpu.c +++ b/arm/aarch64/kvm-cpu.c @@ -250,6 +250,9 @@ void kvm_cpu__show_code(struct kvm_cpu *vcpu) reg.addr = (u64)&data; + if (vcpu->kvm->cfg.arch.is_realm) + return; + dprintf(debug_fd, "\n*pc:\n"); reg.id = ARM64_CORE_REG(regs.pc); if (ioctl(vcpu->vcpu_fd, KVM_GET_ONE_REG, ®) < 0) @@ -274,6 +277,11 @@ void kvm_cpu__show_registers(struct kvm_cpu *vcpu) reg.addr = (u64)&data; dprintf(debug_fd, "\n Registers:\n"); + if (vcpu->kvm->cfg.arch.is_realm) { + dprintf(debug_fd, " UNACCESSIBLE\n"); + return; + } + reg.id = ARM64_CORE_REG(regs.pc); if (ioctl(vcpu->vcpu_fd, KVM_GET_ONE_REG, ®) < 0) die("KVM_GET_ONE_REG failed (pc)"); -- 2.34.1