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[PATCH v3 00/19] i386: KVM: expand Hyper-V features early and provide si
From: |
Vitaly Kuznetsov |
Subject: |
[PATCH v3 00/19] i386: KVM: expand Hyper-V features early and provide simple 'hv-default=on' option |
Date: |
Thu, 7 Jan 2021 16:06:21 +0100 |
This series is a successor of "[PATCH RFC v3 00/23] i386: KVM: expand
Hyper-V features early" and "[PATCH v2 2/2] i386: provide simple 'hyperv=on'"
option to x86 machine types".
Changes:
- Make 'hv-default' a CPU option and not a machine type option [Igor].
- Introduce a simple qtest [Eduardo].
- Update linux headers from 5.11-rc2.
Description:
Upper layer tools like libvirt want to figure out which Hyper-V features are
supported by the underlying stack (QEMU/KVM) but currently they are unable to
do so. We have a nice 'hv_passthrough' CPU flag supported by QEMU but it has
no effect on e.g. QMP's
query-cpu-model-expansion type=full
model={"name":"host","props":{"hv-passthrough":true}}
command as we parse Hyper-V features after creating KVM vCPUs and not at
feature expansion time. To support the use-case we first need to make
KVM_GET_SUPPORTED_HV_CPUID ioctl a system-wide ioctl as the existing
vCPU version can't be used that early. This is what KVM part does. With
that done, we can make early Hyper-V feature expansion (this series).
In addition, provide a simple 'hv-default' option which enables (and
requires from KVM) all currently supported Hyper-V enlightenments.
Unlike 'hv_passthrough' mode, this is going to be migratable.
Vitaly Kuznetsov (19):
linux-headers: update against 5.11-rc2
i386: introduce kvm_hv_evmcs_available()
i386: keep hyperv_vendor string up-to-date
i386: invert hyperv_spinlock_attempts setting logic with
hv_passthrough
i386: always fill Hyper-V CPUID feature leaves from X86CPU data
i386: stop using env->features[] for filling Hyper-V CPUIDs
i386: introduce hyperv_feature_supported()
i386: introduce hv_cpuid_get_host()
i386: drop FEAT_HYPERV feature leaves
i386: introduce hv_cpuid_cache
i386: split hyperv_handle_properties() into
hyperv_expand_features()/hyperv_fill_cpuids()
i386: move eVMCS enablement to hyperv_init_vcpu()
i386: switch hyperv_expand_features() to using error_setg()
i386: adjust the expected KVM_GET_SUPPORTED_HV_CPUID array size
i386: prefer system KVM_GET_SUPPORTED_HV_CPUID ioctl over vCPU's one
i386: use global kvm_state in hyperv_enabled() check
i386: expand Hyper-V features during CPU feature expansion time
i386: provide simple 'hv-default=on' option
qtest/hyperv: Introduce a simple hyper-v test
MAINTAINERS | 1 +
docs/hyperv.txt | 16 +-
.../infiniband/hw/vmw_pvrdma/pvrdma_verbs.h | 2 +-
include/standard-headers/drm/drm_fourcc.h | 175 +++++-
include/standard-headers/linux/const.h | 36 ++
include/standard-headers/linux/ethtool.h | 2 +-
include/standard-headers/linux/fuse.h | 30 +-
include/standard-headers/linux/kernel.h | 9 +-
include/standard-headers/linux/pci_regs.h | 16 +
include/standard-headers/linux/vhost_types.h | 9 +
include/standard-headers/linux/virtio_gpu.h | 82 +++
include/standard-headers/linux/virtio_ids.h | 44 +-
linux-headers/asm-arm64/kvm.h | 3 -
linux-headers/asm-generic/unistd.h | 6 +-
linux-headers/asm-mips/unistd_n32.h | 1 +
linux-headers/asm-mips/unistd_n64.h | 1 +
linux-headers/asm-mips/unistd_o32.h | 1 +
linux-headers/asm-powerpc/unistd_32.h | 1 +
linux-headers/asm-powerpc/unistd_64.h | 1 +
linux-headers/asm-s390/unistd_32.h | 1 +
linux-headers/asm-s390/unistd_64.h | 1 +
linux-headers/asm-x86/kvm.h | 1 +
linux-headers/asm-x86/unistd_32.h | 1 +
linux-headers/asm-x86/unistd_64.h | 1 +
linux-headers/asm-x86/unistd_x32.h | 1 +
linux-headers/linux/kvm.h | 56 +-
linux-headers/linux/userfaultfd.h | 9 +
linux-headers/linux/vfio.h | 1 +
linux-headers/linux/vhost.h | 4 +
scripts/update-linux-headers.sh | 5 +-
target/i386/cpu.c | 151 ++---
target/i386/cpu.h | 11 +-
target/i386/kvm/kvm-stub.c | 10 +
target/i386/kvm/kvm.c | 524 ++++++++++--------
target/i386/kvm/kvm_i386.h | 2 +
tests/qtest/hyperv-test.c | 238 ++++++++
tests/qtest/meson.build | 3 +-
37 files changed, 1074 insertions(+), 382 deletions(-)
create mode 100644 include/standard-headers/linux/const.h
create mode 100644 tests/qtest/hyperv-test.c
--
2.29.2
- [PATCH v3 00/19] i386: KVM: expand Hyper-V features early and provide simple 'hv-default=on' option,
Vitaly Kuznetsov <=
- [PATCH v3 01/19] linux-headers: update against 5.11-rc2, Vitaly Kuznetsov, 2021/01/07
- [PATCH v3 02/19] i386: introduce kvm_hv_evmcs_available(), Vitaly Kuznetsov, 2021/01/07
- [PATCH v3 04/19] i386: invert hyperv_spinlock_attempts setting logic with hv_passthrough, Vitaly Kuznetsov, 2021/01/07
- [PATCH v3 03/19] i386: keep hyperv_vendor string up-to-date, Vitaly Kuznetsov, 2021/01/07
- [PATCH v3 05/19] i386: always fill Hyper-V CPUID feature leaves from X86CPU data, Vitaly Kuznetsov, 2021/01/07
- [PATCH v3 06/19] i386: stop using env->features[] for filling Hyper-V CPUIDs, Vitaly Kuznetsov, 2021/01/07
- [PATCH v3 07/19] i386: introduce hyperv_feature_supported(), Vitaly Kuznetsov, 2021/01/07
- [PATCH v3 08/19] i386: introduce hv_cpuid_get_host(), Vitaly Kuznetsov, 2021/01/07
- [PATCH v3 09/19] i386: drop FEAT_HYPERV feature leaves, Vitaly Kuznetsov, 2021/01/07
- [PATCH v3 10/19] i386: introduce hv_cpuid_cache, Vitaly Kuznetsov, 2021/01/07