mirror of https://gitee.com/openkylin/qemu.git
0723cc8a55
This allows using "-cpu Haswell,+vmx", which we did not really want to
support in QEMU but was produced by Libvirt when using the "host-model"
CPU model. Without this patch, no VMX feature is _actually_ supported
(only the basic instruction set extensions are) and KVM fails to load
in the guest.
This was produced from the output of scripts/kvm/vmxcap using the following
very ugly Python script:
bits = {
'INS/OUTS instruction information': ['FEAT_VMX_BASIC', 'MSR_VMX_BASIC_INS_OUTS'],
'IA32_VMX_TRUE_*_CTLS support': ['FEAT_VMX_BASIC', 'MSR_VMX_BASIC_TRUE_CTLS'],
'External interrupt exiting': ['FEAT_VMX_PINBASED_CTLS', 'VMX_PIN_BASED_EXT_INTR_MASK'],
'NMI exiting': ['FEAT_VMX_PINBASED_CTLS', 'VMX_PIN_BASED_NMI_EXITING'],
'Virtual NMIs': ['FEAT_VMX_PINBASED_CTLS', 'VMX_PIN_BASED_VIRTUAL_NMIS'],
'Activate VMX-preemption timer': ['FEAT_VMX_PINBASED_CTLS', 'VMX_PIN_BASED_VMX_PREEMPTION_TIMER'],
'Process posted interrupts': ['FEAT_VMX_PINBASED_CTLS', 'VMX_PIN_BASED_POSTED_INTR'],
'Interrupt window exiting': ['FEAT_VMX_PROCBASED_CTLS', 'VMX_CPU_BASED_VIRTUAL_INTR_PENDING'],
'Use TSC offsetting': ['FEAT_VMX_PROCBASED_CTLS', 'VMX_CPU_BASED_USE_TSC_OFFSETING'],
'HLT exiting': ['FEAT_VMX_PROCBASED_CTLS', 'VMX_CPU_BASED_HLT_EXITING'],
'INVLPG exiting': ['FEAT_VMX_PROCBASED_CTLS', 'VMX_CPU_BASED_INVLPG_EXITING'],
'MWAIT exiting': ['FEAT_VMX_PROCBASED_CTLS', 'VMX_CPU_BASED_MWAIT_EXITING'],
'RDPMC exiting': ['FEAT_VMX_PROCBASED_CTLS', 'VMX_CPU_BASED_RDPMC_EXITING'],
'RDTSC exiting': ['FEAT_VMX_PROCBASED_CTLS', 'VMX_CPU_BASED_RDTSC_EXITING'],
'CR3-load exiting': ['FEAT_VMX_PROCBASED_CTLS', 'VMX_CPU_BASED_CR3_LOAD_EXITING'],
'CR3-store exiting': ['FEAT_VMX_PROCBASED_CTLS', 'VMX_CPU_BASED_CR3_STORE_EXITING'],
'CR8-load exiting': ['FEAT_VMX_PROCBASED_CTLS', 'VMX_CPU_BASED_CR8_LOAD_EXITING'],
'CR8-store exiting': ['FEAT_VMX_PROCBASED_CTLS', 'VMX_CPU_BASED_CR8_STORE_EXITING'],
'Use TPR shadow': ['FEAT_VMX_PROCBASED_CTLS', 'VMX_CPU_BASED_TPR_SHADOW'],
'NMI-window exiting': ['FEAT_VMX_PROCBASED_CTLS', 'VMX_CPU_BASED_VIRTUAL_NMI_PENDING'],
'MOV-DR exiting': ['FEAT_VMX_PROCBASED_CTLS', 'VMX_CPU_BASED_MOV_DR_EXITING'],
'Unconditional I/O exiting': ['FEAT_VMX_PROCBASED_CTLS', 'VMX_CPU_BASED_UNCOND_IO_EXITING'],
'Use I/O bitmaps': ['FEAT_VMX_PROCBASED_CTLS', 'VMX_CPU_BASED_USE_IO_BITMAPS'],
'Monitor trap flag': ['FEAT_VMX_PROCBASED_CTLS', 'VMX_CPU_BASED_MONITOR_TRAP_FLAG'],
'Use MSR bitmaps': ['FEAT_VMX_PROCBASED_CTLS', 'VMX_CPU_BASED_USE_MSR_BITMAPS'],
'MONITOR exiting': ['FEAT_VMX_PROCBASED_CTLS', 'VMX_CPU_BASED_MONITOR_EXITING'],
'PAUSE exiting': ['FEAT_VMX_PROCBASED_CTLS', 'VMX_CPU_BASED_PAUSE_EXITING'],
'Activate secondary control': ['FEAT_VMX_PROCBASED_CTLS', 'VMX_CPU_BASED_ACTIVATE_SECONDARY_CONTROLS'],
'Virtualize APIC accesses': ['FEAT_VMX_SECONDARY_CTLS', 'VMX_SECONDARY_EXEC_VIRTUALIZE_APIC_ACCESSES'],
'Enable EPT': ['FEAT_VMX_SECONDARY_CTLS', 'VMX_SECONDARY_EXEC_ENABLE_EPT'],
'Descriptor-table exiting': ['FEAT_VMX_SECONDARY_CTLS', 'VMX_SECONDARY_EXEC_DESC'],
'Enable RDTSCP': ['FEAT_VMX_SECONDARY_CTLS', 'VMX_SECONDARY_EXEC_RDTSCP'],
'Virtualize x2APIC mode': ['FEAT_VMX_SECONDARY_CTLS', 'VMX_SECONDARY_EXEC_VIRTUALIZE_X2APIC_MODE'],
'Enable VPID': ['FEAT_VMX_SECONDARY_CTLS', 'VMX_SECONDARY_EXEC_ENABLE_VPID'],
'WBINVD exiting': ['FEAT_VMX_SECONDARY_CTLS', 'VMX_SECONDARY_EXEC_WBINVD_EXITING'],
'Unrestricted guest': ['FEAT_VMX_SECONDARY_CTLS', 'VMX_SECONDARY_EXEC_UNRESTRICTED_GUEST'],
'APIC register emulation': ['FEAT_VMX_SECONDARY_CTLS', 'VMX_SECONDARY_EXEC_APIC_REGISTER_VIRT'],
'Virtual interrupt delivery': ['FEAT_VMX_SECONDARY_CTLS', 'VMX_SECONDARY_EXEC_VIRTUAL_INTR_DELIVERY'],
'PAUSE-loop exiting': ['FEAT_VMX_SECONDARY_CTLS', 'VMX_SECONDARY_EXEC_PAUSE_LOOP_EXITING'],
'RDRAND exiting': ['FEAT_VMX_SECONDARY_CTLS', 'VMX_SECONDARY_EXEC_RDRAND_EXITING'],
'Enable INVPCID': ['FEAT_VMX_SECONDARY_CTLS', 'VMX_SECONDARY_EXEC_ENABLE_INVPCID'],
'Enable VM functions': ['FEAT_VMX_SECONDARY_CTLS', 'VMX_SECONDARY_EXEC_ENABLE_VMFUNC'],
'VMCS shadowing': ['FEAT_VMX_SECONDARY_CTLS', 'VMX_SECONDARY_EXEC_SHADOW_VMCS'],
'RDSEED exiting': ['FEAT_VMX_SECONDARY_CTLS', 'VMX_SECONDARY_EXEC_RDSEED_EXITING'],
'Enable PML': ['FEAT_VMX_SECONDARY_CTLS', 'VMX_SECONDARY_EXEC_ENABLE_PML'],
'Enable XSAVES/XRSTORS': ['FEAT_VMX_SECONDARY_CTLS', 'VMX_SECONDARY_EXEC_XSAVES'],
'Save debug controls': ['FEAT_VMX_EXIT_CTLS', 'VMX_VM_EXIT_SAVE_DEBUG_CONTROLS'],
'Load IA32_PERF_GLOBAL_CTRL': ['FEAT_VMX_EXIT_CTLS', 'VMX_VM_EXIT_LOAD_IA32_PERF_GLOBAL_CTRL'],
'Acknowledge interrupt on exit': ['FEAT_VMX_EXIT_CTLS', 'VMX_VM_EXIT_ACK_INTR_ON_EXIT'],
'Save IA32_PAT': ['FEAT_VMX_EXIT_CTLS', 'VMX_VM_EXIT_SAVE_IA32_PAT'],
'Load IA32_PAT': ['FEAT_VMX_EXIT_CTLS', 'VMX_VM_EXIT_LOAD_IA32_PAT'],
'Save IA32_EFER': ['FEAT_VMX_EXIT_CTLS', 'VMX_VM_EXIT_SAVE_IA32_EFER'],
'Load IA32_EFER': ['FEAT_VMX_EXIT_CTLS', 'VMX_VM_EXIT_LOAD_IA32_EFER'],
'Save VMX-preemption timer value': ['FEAT_VMX_EXIT_CTLS', 'VMX_VM_EXIT_SAVE_VMX_PREEMPTION_TIMER'],
'Clear IA32_BNDCFGS': ['FEAT_VMX_EXIT_CTLS', 'VMX_VM_EXIT_CLEAR_BNDCFGS'],
'Load debug controls': ['FEAT_VMX_ENTRY_CTLS', 'VMX_VM_ENTRY_LOAD_DEBUG_CONTROLS'],
'IA-32e mode guest': ['FEAT_VMX_ENTRY_CTLS', 'VMX_VM_ENTRY_IA32E_MODE'],
'Load IA32_PERF_GLOBAL_CTRL': ['FEAT_VMX_ENTRY_CTLS', 'VMX_VM_ENTRY_LOAD_IA32_PERF_GLOBAL_CTRL'],
'Load IA32_PAT': ['FEAT_VMX_ENTRY_CTLS', 'VMX_VM_ENTRY_LOAD_IA32_PAT'],
'Load IA32_EFER': ['FEAT_VMX_ENTRY_CTLS', 'VMX_VM_ENTRY_LOAD_IA32_EFER'],
'Load IA32_BNDCFGS': ['FEAT_VMX_ENTRY_CTLS', 'VMX_VM_ENTRY_LOAD_BNDCFGS'],
'Store EFER.LMA into IA-32e mode guest control': ['FEAT_VMX_MISC', 'MSR_VMX_MISC_STORE_LMA'],
'HLT activity state': ['FEAT_VMX_MISC', 'MSR_VMX_MISC_ACTIVITY_HLT'],
'VMWRITE to VM-exit information fields': ['FEAT_VMX_MISC', 'MSR_VMX_MISC_VMWRITE_VMEXIT'],
'Inject event with insn length=0': ['FEAT_VMX_MISC', 'MSR_VMX_MISC_ZERO_LEN_INJECT'],
'Execute-only EPT translations': ['FEAT_VMX_EPT_VPID_CAPS', 'MSR_VMX_EPT_EXECONLY'],
'Page-walk length 4': ['FEAT_VMX_EPT_VPID_CAPS', 'MSR_VMX_EPT_PAGE_WALK_LENGTH_4'],
'Paging-structure memory type WB': ['FEAT_VMX_EPT_VPID_CAPS', 'MSR_VMX_EPT_WB'],
'2MB EPT pages': ['FEAT_VMX_EPT_VPID_CAPS', 'MSR_VMX_EPT_2MB | MSR_VMX_EPT_1GB'],
'INVEPT supported': ['FEAT_VMX_EPT_VPID_CAPS', 'MSR_VMX_EPT_INVEPT'],
'EPT accessed and dirty flags': ['FEAT_VMX_EPT_VPID_CAPS', 'MSR_VMX_EPT_AD_BITS'],
'Single-context INVEPT': ['FEAT_VMX_EPT_VPID_CAPS', 'MSR_VMX_EPT_INVEPT_SINGLE_CONTEXT'],
'All-context INVEPT': ['FEAT_VMX_EPT_VPID_CAPS', 'MSR_VMX_EPT_INVEPT_ALL_CONTEXT'],
'INVVPID supported': ['FEAT_VMX_EPT_VPID_CAPS', 'MSR_VMX_EPT_INVVPID'],
'Individual-address INVVPID': ['FEAT_VMX_EPT_VPID_CAPS', 'MSR_VMX_EPT_INVVPID_SINGLE_ADDR'],
'Single-context INVVPID': ['FEAT_VMX_EPT_VPID_CAPS', 'MSR_VMX_EPT_INVVPID_SINGLE_CONTEXT'],
'All-context INVVPID': ['FEAT_VMX_EPT_VPID_CAPS', 'MSR_VMX_EPT_INVVPID_ALL_CONTEXT'],
'Single-context-retaining-globals INVVPID': ['FEAT_VMX_EPT_VPID_CAPS', 'MSR_VMX_EPT_INVVPID_SINGLE_CONTEXT_NOGLOBALS'],
'EPTP Switching': ['FEAT_VMX_VMFUNC', 'MSR_VMX_VMFUNC_EPT_SWITCHING']
}
import sys
import textwrap
out = {}
for l in sys.stdin.readlines():
l = l.rstrip()
if l.endswith('!!'):
l = l[:-2].rstrip()
if l.startswith(' ') and (l.endswith('default') or l.endswith('yes')):
l = l[4:]
for key, value in bits.items():
if l.startswith(key):
ctl, bit = value
if ctl in out:
out[ctl] = out[ctl] + ' | '
else:
out[ctl] = ' [%s] = ' % ctl
out[ctl] = out[ctl] + bit
for x in sorted(out.keys()):
print("\n ".join(textwrap.wrap(out[x] + ",")))
Note that the script has a bug in that some keys apply to both VM entry
and VM exit controls ("load IA32_PERF_GLOBAL_CTRL", "load IA32_EFER",
"load IA32_PAT". Those have to be fixed by hand.
Reviewed-by: Eduardo Habkost <ehabkost@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
|
||
|---|---|---|
| accel | ||
| audio | ||
| authz | ||
| backends | ||
| block | ||
| bsd-user | ||
| capstone@22ead3e0bf | ||
| chardev | ||
| contrib | ||
| crypto | ||
| default-configs | ||
| disas | ||
| docs | ||
| dtc@88f18909db | ||
| dump | ||
| fpu | ||
| fsdev | ||
| gdb-xml | ||
| hw | ||
| include | ||
| io | ||
| libdecnumber | ||
| linux-headers | ||
| linux-user | ||
| migration | ||
| monitor | ||
| nbd | ||
| net | ||
| pc-bios | ||
| plugins | ||
| po | ||
| python/qemu | ||
| qapi | ||
| qga | ||
| qobject | ||
| qom | ||
| replay | ||
| roms | ||
| scripts | ||
| scsi | ||
| slirp@126c04acba | ||
| stubs | ||
| target | ||
| tcg | ||
| tests | ||
| trace | ||
| ui | ||
| util | ||
| .cirrus.yml | ||
| .dir-locals.el | ||
| .editorconfig | ||
| .exrc | ||
| .gdbinit | ||
| .gitignore | ||
| .gitlab-ci.yml | ||
| .gitmodules | ||
| .gitpublish | ||
| .mailmap | ||
| .patchew.yml | ||
| .shippable.yml | ||
| .travis.yml | ||
| CODING_STYLE.rst | ||
| COPYING | ||
| COPYING.LIB | ||
| Changelog | ||
| Kconfig.host | ||
| LICENSE | ||
| MAINTAINERS | ||
| Makefile | ||
| Makefile.objs | ||
| Makefile.target | ||
| README.rst | ||
| VERSION | ||
| arch_init.c | ||
| balloon.c | ||
| block.c | ||
| blockdev-nbd.c | ||
| blockdev.c | ||
| blockjob.c | ||
| bootdevice.c | ||
| bt-host.c | ||
| bt-vhci.c | ||
| configure | ||
| cpus-common.c | ||
| cpus.c | ||
| device-hotplug.c | ||
| device_tree.c | ||
| disas.c | ||
| dma-helpers.c | ||
| exec-vary.c | ||
| exec.c | ||
| gdbstub.c | ||
| gitdm.config | ||
| hmp-commands-info.hx | ||
| hmp-commands.hx | ||
| ioport.c | ||
| iothread.c | ||
| job-qmp.c | ||
| job.c | ||
| memory.c | ||
| memory_ldst.inc.c | ||
| memory_mapping.c | ||
| module-common.c | ||
| os-posix.c | ||
| os-win32.c | ||
| qdev-monitor.c | ||
| qemu-bridge-helper.c | ||
| qemu-deprecated.texi | ||
| qemu-doc.texi | ||
| qemu-edid.c | ||
| qemu-img-cmds.hx | ||
| qemu-img.c | ||
| qemu-img.texi | ||
| qemu-io-cmds.c | ||
| qemu-io.c | ||
| qemu-keymap.c | ||
| qemu-nbd.c | ||
| qemu-nbd.texi | ||
| qemu-option-trace.texi | ||
| qemu-options-wrapper.h | ||
| qemu-options.h | ||
| qemu-options.hx | ||
| qemu-seccomp.c | ||
| qemu-tech.texi | ||
| qemu.nsi | ||
| qemu.sasl | ||
| qtest.c | ||
| replication.c | ||
| replication.h | ||
| rules.mak | ||
| thunk.c | ||
| tpm.c | ||
| trace-events | ||
| version.rc | ||
| vl.c | ||
README.rst
=========== QEMU README =========== QEMU is a generic and open source machine & userspace emulator and virtualizer. QEMU is capable of emulating a complete machine in software without any need for hardware virtualization support. By using dynamic translation, it achieves very good performance. QEMU can also integrate with the Xen and KVM hypervisors to provide emulated hardware while allowing the hypervisor to manage the CPU. With hypervisor support, QEMU can achieve near native performance for CPUs. When QEMU emulates CPUs directly it is capable of running operating systems made for one machine (e.g. an ARMv7 board) on a different machine (e.g. an x86_64 PC board). QEMU is also capable of providing userspace API virtualization for Linux and BSD kernel interfaces. This allows binaries compiled against one architecture ABI (e.g. the Linux PPC64 ABI) to be run on a host using a different architecture ABI (e.g. the Linux x86_64 ABI). This does not involve any hardware emulation, simply CPU and syscall emulation. QEMU aims to fit into a variety of use cases. It can be invoked directly by users wishing to have full control over its behaviour and settings. It also aims to facilitate integration into higher level management layers, by providing a stable command line interface and monitor API. It is commonly invoked indirectly via the libvirt library when using open source applications such as oVirt, OpenStack and virt-manager. QEMU as a whole is released under the GNU General Public License, version 2. For full licensing details, consult the LICENSE file. Building ======== QEMU is multi-platform software intended to be buildable on all modern Linux platforms, OS-X, Win32 (via the Mingw64 toolchain) and a variety of other UNIX targets. The simple steps to build QEMU are: .. code-block:: shell mkdir build cd build ../configure make Additional information can also be found online via the QEMU website: * `<https://qemu.org/Hosts/Linux>`_ * `<https://qemu.org/Hosts/Mac>`_ * `<https://qemu.org/Hosts/W32>`_ Submitting patches ================== The QEMU source code is maintained under the GIT version control system. .. code-block:: shell git clone https://git.qemu.org/git/qemu.git When submitting patches, one common approach is to use 'git format-patch' and/or 'git send-email' to format & send the mail to the qemu-devel@nongnu.org mailing list. All patches submitted must contain a 'Signed-off-by' line from the author. Patches should follow the guidelines set out in the CODING_STYLE.rst file. Additional information on submitting patches can be found online via the QEMU website * `<https://qemu.org/Contribute/SubmitAPatch>`_ * `<https://qemu.org/Contribute/TrivialPatches>`_ The QEMU website is also maintained under source control. .. code-block:: shell git clone https://git.qemu.org/git/qemu-web.git * `<https://www.qemu.org/2017/02/04/the-new-qemu-website-is-up/>`_ A 'git-publish' utility was created to make above process less cumbersome, and is highly recommended for making regular contributions, or even just for sending consecutive patch series revisions. It also requires a working 'git send-email' setup, and by default doesn't automate everything, so you may want to go through the above steps manually for once. For installation instructions, please go to * `<https://github.com/stefanha/git-publish>`_ The workflow with 'git-publish' is: .. code-block:: shell $ git checkout master -b my-feature $ # work on new commits, add your 'Signed-off-by' lines to each $ git publish Your patch series will be sent and tagged as my-feature-v1 if you need to refer back to it in the future. Sending v2: .. code-block:: shell $ git checkout my-feature # same topic branch $ # making changes to the commits (using 'git rebase', for example) $ git publish Your patch series will be sent with 'v2' tag in the subject and the git tip will be tagged as my-feature-v2. Bug reporting ============= The QEMU project uses Launchpad as its primary upstream bug tracker. Bugs found when running code built from QEMU git or upstream released sources should be reported via: * `<https://bugs.launchpad.net/qemu/>`_ If using QEMU via an operating system vendor pre-built binary package, it is preferable to report bugs to the vendor's own bug tracker first. If the bug is also known to affect latest upstream code, it can also be reported via launchpad. For additional information on bug reporting consult: * `<https://qemu.org/Contribute/ReportABug>`_ Contact ======= The QEMU community can be contacted in a number of ways, with the two main methods being email and IRC * `<mailto:qemu-devel@nongnu.org>`_ * `<https://lists.nongnu.org/mailman/listinfo/qemu-devel>`_ * #qemu on irc.oftc.net Information on additional methods of contacting the community can be found online via the QEMU website: * `<https://qemu.org/Contribute/StartHere>`_