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68337e55f6
Taking a stab at implementing #14479. Add {Condition,Assert}CPUFeature to `systemd-analyze` & friends. Implement it by executing the CPUID instruction. Add tables for common x86/i386 features. Tested via unit tests + checked that commands such as: ```bash systemd-analyze condition 'AssertCPUFeature = rdrand' ``` Succeed as expected and that commands such as ```bash systemd-analyze condition 'AssertCPUFeature = foobar' ``` Fail as expected. Finally, I have amended the `systemd.unit` manual page with the new condition and the list of all currently supported flags.
65 lines
1.8 KiB
C
65 lines
1.8 KiB
C
/* SPDX-License-Identifier: LGPL-2.1-or-later */
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#pragma once
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#include <stdbool.h>
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#include "macro.h"
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enum {
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VIRTUALIZATION_NONE = 0,
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VIRTUALIZATION_VM_FIRST,
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VIRTUALIZATION_KVM = VIRTUALIZATION_VM_FIRST,
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VIRTUALIZATION_QEMU,
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VIRTUALIZATION_BOCHS,
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VIRTUALIZATION_XEN,
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VIRTUALIZATION_UML,
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VIRTUALIZATION_VMWARE,
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VIRTUALIZATION_ORACLE,
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VIRTUALIZATION_MICROSOFT,
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VIRTUALIZATION_ZVM,
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VIRTUALIZATION_PARALLELS,
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VIRTUALIZATION_BHYVE,
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VIRTUALIZATION_QNX,
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VIRTUALIZATION_ACRN,
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VIRTUALIZATION_POWERVM,
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VIRTUALIZATION_VM_OTHER,
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VIRTUALIZATION_VM_LAST = VIRTUALIZATION_VM_OTHER,
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VIRTUALIZATION_CONTAINER_FIRST,
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VIRTUALIZATION_SYSTEMD_NSPAWN = VIRTUALIZATION_CONTAINER_FIRST,
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VIRTUALIZATION_LXC_LIBVIRT,
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VIRTUALIZATION_LXC,
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VIRTUALIZATION_OPENVZ,
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VIRTUALIZATION_DOCKER,
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VIRTUALIZATION_PODMAN,
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VIRTUALIZATION_RKT,
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VIRTUALIZATION_WSL,
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VIRTUALIZATION_PROOT,
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VIRTUALIZATION_POUCH,
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VIRTUALIZATION_CONTAINER_OTHER,
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VIRTUALIZATION_CONTAINER_LAST = VIRTUALIZATION_CONTAINER_OTHER,
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_VIRTUALIZATION_MAX,
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_VIRTUALIZATION_INVALID = -EINVAL,
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};
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static inline bool VIRTUALIZATION_IS_VM(int x) {
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return x >= VIRTUALIZATION_VM_FIRST && x <= VIRTUALIZATION_VM_LAST;
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}
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static inline bool VIRTUALIZATION_IS_CONTAINER(int x) {
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return x >= VIRTUALIZATION_CONTAINER_FIRST && x <= VIRTUALIZATION_CONTAINER_LAST;
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}
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int detect_vm(void);
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int detect_container(void);
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int detect_virtualization(void);
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int running_in_userns(void);
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int running_in_chroot(void);
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const char *virtualization_to_string(int v) _const_;
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int virtualization_from_string(const char *s) _pure_;
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bool has_cpu_with_flag(const char *flag);
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