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2023-03-16KVM: x86: Remove the KVM_GET_NR_MMU_PAGES ioctlThomas Huth
The KVM_GET_NR_MMU_PAGES ioctl is quite questionable on 64-bit hosts since it fails to return the full 64 bits of the value that can be set with the corresponding KVM_SET_NR_MMU_PAGES call. Its "long" return value is truncated into an "int" in the kvm_arch_vm_ioctl() function. Since this ioctl also never has been used by userspace applications (QEMU, Google's internal VMM, kvmtool and CrosVM have been checked), it's likely the best if we remove this badly designed ioctl before anybody really tries to use it. Signed-off-by: Thomas Huth <thuth@redhat.com> Reviewed-by: Sean Christopherson <seanjc@google.com> Message-Id: <20230208140105.655814-4-thuth@redhat.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2023-03-03tools headers kvm: Sync uapi/{asm/linux} kvm.h headers with the kernel sourcesArnaldo Carvalho de Melo
To pick up the changes in: 89b0e7de3451a17f ("KVM: arm64: nv: Introduce nested virtualization VCPU feature") 14329b825ffb7f27 ("KVM: x86/pmu: Introduce masked events to the pmu event filter") 6213b701a9df0472 ("KVM: x86: Replace 0-length arrays with flexible arrays") 3fd49805d19d1c56 ("KVM: s390: Extend MEM_OP ioctl by storage key checked cmpxchg") 14329b825ffb7f27 ("KVM: x86/pmu: Introduce masked events to the pmu event filter") That don't change functionality in tools/perf, as no new ioctl is added for the 'perf trace' scripts to harvest. This addresses these perf build warnings: Warning: Kernel ABI header at 'tools/include/uapi/linux/kvm.h' differs from latest version at 'include/uapi/linux/kvm.h' diff -u tools/include/uapi/linux/kvm.h include/uapi/linux/kvm.h Warning: Kernel ABI header at 'tools/arch/x86/include/uapi/asm/kvm.h' differs from latest version at 'arch/x86/include/uapi/asm/kvm.h' diff -u tools/arch/x86/include/uapi/asm/kvm.h arch/x86/include/uapi/asm/kvm.h Warning: Kernel ABI header at 'tools/arch/arm64/include/uapi/asm/kvm.h' differs from latest version at 'arch/arm64/include/uapi/asm/kvm.h' diff -u tools/arch/arm64/include/uapi/asm/kvm.h arch/arm64/include/uapi/asm/kvm.h Cc: Aaron Lewis <aaronlewis@google.com> Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Christoffer Dall <christoffer.dall@arm.com> Cc: Ian Rogers <irogers@google.com> Cc: Janis Schoetterl-Glausch <scgl@linux.ibm.com> Cc: Janosch Frank <frankja@linux.ibm.com> Cc: Jiri Olsa <jolsa@kernel.org> Cc: Kees Kook <keescook@chromium.org> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Oliver Upton <oliver.upton@linux.dev> Cc: Sean Christopherson <seanjc@google.com> Link: https://lore.kernel.org/lkml/ZAJlg7%2FfWDVGX0F3@kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2023-01-17tools headers UAPI: Sync linux/kvm.h with the kernel sourcesArnaldo Carvalho de Melo
To pick the changes in: b0305c1e0e27ad91 ("KVM: x86/xen: Add KVM_XEN_INVALID_GPA and KVM_XEN_INVALID_GFN to uapi") That just rebuilds perf, as these patches don't add any new KVM ioctl to be harvested for the the 'perf trace' ioctl syscall argument beautifiers. This silences this perf build warning: Warning: Kernel ABI header at 'tools/include/uapi/linux/kvm.h' differs from latest version at 'include/uapi/linux/kvm.h' diff -u tools/include/uapi/linux/kvm.h include/uapi/linux/kvm.h Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: David Woodhouse <dwmw@amazon.co.uk> Cc: Ian Rogers <irogers@google.com> Cc: Jiri Olsa <jolsa@kernel.org> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Paolo Bonzini <pbonzini@redhat.com> Link: http://lore.kernel.org/lkml/Y7Loj5slB908QSXf@kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2022-12-20tools headers UAPI: Sync linux/kvm.h with the kernel sourcesArnaldo Carvalho de Melo
To pick the changes in: 86bdf3ebcfe1ded0 ("KVM: Support dirty ring in conjunction with bitmap") That just rebuilds perf, as these patches don't add any new KVM ioctl to be harvested for the the 'perf trace' ioctl syscall argument beautifiers. This is also by now used by tools/testing/selftests/kvm/, a simple test build didn't succeed, but for another reason: lib/kvm_util.c: In function ‘vm_enable_dirty_ring’: lib/kvm_util.c:125:30: error: ‘KVM_CAP_DIRTY_LOG_RING_ACQ_REL’ undeclared (first use in this function); did you mean ‘KVM_CAP_DIRTY_LOG_RING’? 125 | if (vm_check_cap(vm, KVM_CAP_DIRTY_LOG_RING_ACQ_REL)) | ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ | KVM_CAP_DIRTY_LOG_RING I'll send a separate patch for that. This silences this perf build warning: Warning: Kernel ABI header at 'tools/include/uapi/linux/kvm.h' differs from latest version at 'include/uapi/linux/kvm.h' diff -u tools/include/uapi/linux/kvm.h include/uapi/linux/kvm.h Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Gavin Shan <gshan@redhat.com> Cc: Ian Rogers <irogers@google.com> Cc: Jiri Olsa <jolsa@kernel.org> Cc: Marc Zyngier <maz@kernel.org> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Paolo Bonzini <pbonzini@redhat.com> Link: http://lore.kernel.org/lkml/Y6H3b1Q4Msjy5Yz3@kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2022-12-02KVM: Reference to kvm_userspace_memory_region in doc and commentsJavier Martinez Canillas
There are still references to the removed kvm_memory_region data structure but the doc and comments should mention struct kvm_userspace_memory_region instead, since that is what's used by the ioctl that replaced the old one and this data structure support the same set of flags. Signed-off-by: Javier Martinez Canillas <javierm@redhat.com> Message-Id: <20221202105011.185147-4-javierm@redhat.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2022-12-02KVM: Delete all references to removed KVM_SET_MEMORY_ALIAS ioctlJavier Martinez Canillas
The documentation says that the ioctl has been deprecated, but it has been actually removed and the remaining references are just left overs. Suggested-by: Sean Christopherson <seanjc@google.com> Signed-off-by: Javier Martinez Canillas <javierm@redhat.com> Message-Id: <20221202105011.185147-3-javierm@redhat.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2022-12-02KVM: Delete all references to removed KVM_SET_MEMORY_REGION ioctlJavier Martinez Canillas
The documentation says that the ioctl has been deprecated, but it has been actually removed and the remaining references are just left overs. Suggested-by: Sean Christopherson <seanjc@google.com> Signed-off-by: Javier Martinez Canillas <javierm@redhat.com> Message-Id: <20221202105011.185147-2-javierm@redhat.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2022-10-22tools: include: sync include/api/linux/kvm.hPaolo Bonzini
Provide a definition of KVM_CAP_DIRTY_LOG_RING_ACQ_REL. Fixes: 17601bfed909 ("KVM: Add KVM_CAP_DIRTY_LOG_RING_ACQ_REL capability and config option") Cc: Marc Zyngier <maz@kernel.org> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2022-08-19tools headers UAPI: Sync linux/kvm.h with the kernel sourcesArnaldo Carvalho de Melo
To pick the changes in: 8a061562e2f2b32b ("RISC-V: KVM: Add extensible CSR emulation framework") f5ecfee944934757 ("KVM: s390: resetting the Topology-Change-Report") 450a563924ae9437 ("KVM: stats: Fix value for KVM_STATS_UNIT_MAX for boolean stats") 1b870fa5573e260b ("kvm: stats: tell userspace which values are boolean") db1c875e0539518e ("KVM: s390: add KVM_S390_ZPCI_OP to manage guest zPCI devices") 94dfc73e7cf4a31d ("treewide: uapi: Replace zero-length arrays with flexible-array members") 084cc29f8bbb034c ("KVM: x86/MMU: Allow NX huge pages to be disabled on a per-vm basis") 2f4073e08f4cc5a4 ("KVM: VMX: Enable Notify VM exit") ed2351174e38ad4f ("KVM: x86: Extend KVM_{G,S}ET_VCPU_EVENTS to support pending triple fault") e9bf3acb23f0a6e1 ("KVM: s390: Add KVM_CAP_S390_PROTECTED_DUMP") 8aba09588d2af37c ("KVM: s390: Add CPU dump functionality") 0460eb35b443f73f ("KVM: s390: Add configuration dump functionality") fe9a93e07ba4f29d ("KVM: s390: pv: Add query dump information") 35d02493dba1ae63 ("KVM: s390: pv: Add query interface") c24a950ec7d60c4d ("KVM, SEV: Add KVM_EXIT_SHUTDOWN metadata for SEV-ES") ffbb61d09fc56c85 ("KVM: x86: Accept KVM_[GS]ET_TSC_KHZ as a VM ioctl.") 661a20fab7d156cf ("KVM: x86/xen: Advertise and document KVM_XEN_HVM_CONFIG_EVTCHN_SEND") fde0451be8fb3208 ("KVM: x86/xen: Support per-vCPU event channel upcall via local APIC") 28d1629f751c4a5f ("KVM: x86/xen: Kernel acceleration for XENVER_version") 536395260582be74 ("KVM: x86/xen: handle PV timers oneshot mode") 942c2490c23f2800 ("KVM: x86/xen: Add KVM_XEN_VCPU_ATTR_TYPE_VCPU_ID") 2fd6df2f2b47d430 ("KVM: x86/xen: intercept EVTCHNOP_send from guests") 35025735a79eaa89 ("KVM: x86/xen: Support direct injection of event channel events") That just rebuilds perf, as these patches add just an ioctl that is S390 specific and may clash with other arches, so are so far being excluded in the harvester script: $ tools/perf/trace/beauty/kvm_ioctl.sh > before $ cp include/uapi/linux/kvm.h tools/include/uapi/linux/kvm.h $ tools/perf/trace/beauty/kvm_ioctl.sh > after $ diff -u before after $ grep 390 tools/perf/trace/beauty/kvm_ioctl.sh egrep -v " ((ARM|PPC|S390)_|[GS]ET_(DEBUGREGS|PIT2|XSAVE|TSC_KHZ)|CREATE_SPAPR_TCE_64)" | \ $ This is also by now used by tools/testing/selftests/kvm/, a simple test build succeeded. This silences this perf build warning: Warning: Kernel ABI header at 'tools/include/uapi/linux/kvm.h' differs from latest version at 'include/uapi/linux/kvm.h' diff -u tools/include/uapi/linux/kvm.h include/uapi/linux/kvm.h Cc: Anup Patel <anup@brainfault.org> Cc: Ben Gardon <bgardon@google.com> Cc: Chenyi Qiang <chenyi.qiang@intel.com> Cc: Christian Borntraeger <borntraeger@linux.ibm.com> Cc: David Woodhouse <dwmw@amazon.co.uk> Cc: Gustavo A. R. Silva <gustavoars@kernel.org> Cc: Janosch Frank <frankja@linux.ibm.com> Cc: João Martins <joao.m.martins@oracle.com> Cc: Matthew Rosato <mjrosato@linux.ibm.com> Cc: Oliver Upton <oupton@google.com> Cc: Paolo Bonzini <pbonzini@redhat.com> Cc: Peter Gonda <pgonda@google.com> Cc: Pierre Morel <pmorel@linux.ibm.com> Cc: Tao Xu <tao3.xu@intel.com> Link: https://lore.kernel.org/lkml/YvzuryClcn%2FvA0Gn@kernel.org/ Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2022-08-02Merge tag 'flexible-array-transformations-UAPI-6.0-rc1' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/gustavoars/linux Pull uapi flexible array update from Gustavo Silva: "A treewide patch that replaces zero-length arrays with flexible-array members in UAPI. This has been baking in linux-next for 5 weeks now. '-fstrict-flex-arrays=3' is coming and we need to land these changes to prevent issues like these in the short future: fs/minix/dir.c:337:3: warning: 'strcpy' will always overflow; destination buffer has size 0, but the source string has length 2 (including NUL byte) [-Wfortify-source] strcpy(de3->name, "."); ^ Since these are all [0] to [] changes, the risk to UAPI is nearly zero. If this breaks anything, we can use a union with a new member name" Link: https://gcc.gnu.org/bugzilla/show_bug.cgi?id=101836 * tag 'flexible-array-transformations-UAPI-6.0-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gustavoars/linux: treewide: uapi: Replace zero-length arrays with flexible-array members
2022-07-19tools headers UAPI: Sync linux/kvm.h with the kernel sourcesPaolo Bonzini
Silence this perf build warning: Warning: Kernel ABI header at 'tools/include/uapi/linux/kvm.h' differs from latest version at 'include/uapi/linux/kvm.h' diff -u tools/include/uapi/linux/kvm.h include/uapi/linux/kvm.h Reported-by: Arnaldo Carvalho de Melo <acme@redhat.com> Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Ian Rogers <irogers@google.com> Cc: Jiri Olsa <jolsa@kernel.org> Cc: Namhyung Kim <namhyung@kernel.org> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2022-06-28treewide: uapi: Replace zero-length arrays with flexible-array membersGustavo A. R. Silva
There is a regular need in the kernel to provide a way to declare having a dynamically sized set of trailing elements in a structure. Kernel code should always use “flexible array members”[1] for these cases. The older style of one-element or zero-length arrays should no longer be used[2]. This code was transformed with the help of Coccinelle: (linux-5.19-rc2$ spatch --jobs $(getconf _NPROCESSORS_ONLN) --sp-file script.cocci --include-headers --dir . > output.patch) @@ identifier S, member, array; type T1, T2; @@ struct S { ... T1 member; T2 array[ - 0 ]; }; -fstrict-flex-arrays=3 is coming and we need to land these changes to prevent issues like these in the short future: ../fs/minix/dir.c:337:3: warning: 'strcpy' will always overflow; destination buffer has size 0, but the source string has length 2 (including NUL byte) [-Wfortify-source] strcpy(de3->name, "."); ^ Since these are all [0] to [] changes, the risk to UAPI is nearly zero. If this breaks anything, we can use a union with a new member name. [1] https://en.wikipedia.org/wiki/Flexible_array_member [2] https://www.kernel.org/doc/html/v5.16/process/deprecated.html#zero-length-and-one-element-arrays Link: https://github.com/KSPP/linux/issues/78 Build-tested-by: kernel test robot <lkp@intel.com> Link: https://lore.kernel.org/lkml/62b675ec.wKX6AOZ6cbE71vtF%25lkp@intel.com/ Acked-by: Dan Williams <dan.j.williams@intel.com> # For ndctl.h Signed-off-by: Gustavo A. R. Silva <gustavoars@kernel.org>
2022-06-28tools headers UAPI: Sync linux/kvm.h with the kernel sourcesArnaldo Carvalho de Melo
To pick the changes in: bfbab44568779e16 ("KVM: arm64: Implement PSCI SYSTEM_SUSPEND") 7b33a09d036ffd9a ("KVM: arm64: Add support for userspace to suspend a vCPU") ffbb61d09fc56c85 ("KVM: x86: Accept KVM_[GS]ET_TSC_KHZ as a VM ioctl.") 661a20fab7d156cf ("KVM: x86/xen: Advertise and document KVM_XEN_HVM_CONFIG_EVTCHN_SEND") fde0451be8fb3208 ("KVM: x86/xen: Support per-vCPU event channel upcall via local APIC") 28d1629f751c4a5f ("KVM: x86/xen: Kernel acceleration for XENVER_version") 536395260582be74 ("KVM: x86/xen: handle PV timers oneshot mode") 942c2490c23f2800 ("KVM: x86/xen: Add KVM_XEN_VCPU_ATTR_TYPE_VCPU_ID") 2fd6df2f2b47d430 ("KVM: x86/xen: intercept EVTCHNOP_send from guests") 35025735a79eaa89 ("KVM: x86/xen: Support direct injection of event channel events") That automatically adds support for this new ioctl: $ tools/perf/trace/beauty/kvm_ioctl.sh > before $ cp include/uapi/linux/kvm.h tools/include/uapi/linux/kvm.h $ tools/perf/trace/beauty/kvm_ioctl.sh > after $ diff -u before after --- before 2022-06-28 12:13:07.281150509 -0300 +++ after 2022-06-28 12:13:16.423392896 -0300 @@ -98,6 +98,7 @@ [0xcc] = "GET_SREGS2", [0xcd] = "SET_SREGS2", [0xce] = "GET_STATS_FD", + [0xd0] = "XEN_HVM_EVTCHN_SEND", [0xe0] = "CREATE_DEVICE", [0xe1] = "SET_DEVICE_ATTR", [0xe2] = "GET_DEVICE_ATTR", $ This silences these perf build warning: Warning: Kernel ABI header at 'tools/include/uapi/linux/kvm.h' differs from latest version at 'include/uapi/linux/kvm.h' diff -u tools/include/uapi/linux/kvm.h include/uapi/linux/kvm.h Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: David Woodhouse <dwmw@amazon.co.uk> Cc: Ian Rogers <irogers@google.com> Cc: Jiri Olsa <jolsa@kernel.org> Cc: Joao Martins <joao.m.martins@oracle.com> Cc: Marc Zyngier <maz@kernel.org> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Oliver Upton <oupton@google.com> Cc: Paolo Bonzini <pbonzini@redhat.com> Link: http://lore.kernel.org/lkml/Yrs4RE+qfgTaWdAt@kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2022-05-08tools headers UAPI: Sync linux/kvm.h with the kernel sourcesArnaldo Carvalho de Melo
To pick the changes in: d495f942f40aa412 ("KVM: fix bad user ABI for KVM_EXIT_SYSTEM_EVENT") That just rebuilds perf, as these patches don't add any new KVM ioctl to be harvested for the the 'perf trace' ioctl syscall argument beautifiers. This is also by now used by tools/testing/selftests/kvm/, a simple test build succeeded. This silences this perf build warning: Warning: Kernel ABI header at 'tools/include/uapi/linux/kvm.h' differs from latest version at 'include/uapi/linux/kvm.h' diff -u tools/include/uapi/linux/kvm.h include/uapi/linux/kvm.h Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Jiri Olsa <jolsa@kernel.org> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Paolo Bonzini <pbonzini@redhat.com> Link: http://lore.kernel.org/lkml/YnE5BIweGmCkpOTN@kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2022-04-01tools headers UAPI: Sync linux/kvm.h with the kernel sourcesArnaldo Carvalho de Melo
To pick the changes in: 6d8491910fcd3324 ("KVM: x86: Introduce KVM_CAP_DISABLE_QUIRKS2") ef11c9463ae00630 ("KVM: s390: Add vm IOCTL for key checked guest absolute memory access") e9e9feebcbc14b17 ("KVM: s390: Add optional storage key checking to MEMOP IOCTL") That just rebuilds perf, as these patches don't add any new KVM ioctl to be harvested for the the 'perf trace' ioctl syscall argument beautifiers. This is also by now used by tools/testing/selftests/kvm/, a simple test build succeeded. This silences this perf build warning: Warning: Kernel ABI header at 'tools/include/uapi/linux/kvm.h' differs from latest version at 'include/uapi/linux/kvm.h' diff -u tools/include/uapi/linux/kvm.h include/uapi/linux/kvm.h Cc: Christian Borntraeger <borntraeger@linux.ibm.com> Cc: Janis Schoetterl-Glausch <scgl@linux.ibm.com> Cc: Oliver Upton <oupton@google.com> Cc: Paolo Bonzini <pbonzini@redhat.com> Link: http://lore.kernel.org/lkml/YkSCOWHQdir1lhdJ@kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2022-02-25KVM: x86: Provide per VM capability for disabling PMU virtualizationDavid Dunn
Add a new capability, KVM_CAP_PMU_CAPABILITY, that takes a bitmask of settings/features to allow userspace to configure PMU virtualization on a per-VM basis. For now, support a single flag, KVM_PMU_CAP_DISABLE, to allow disabling PMU virtualization for a VM even when KVM is configured with enable_pmu=true a module level. To keep KVM simple, disallow changing VM's PMU configuration after vCPUs have been created. Signed-off-by: David Dunn <daviddunn@google.com> Message-Id: <20220223225743.2703915-2-daviddunn@google.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2022-02-22KVM: PPC: reserve capability 210 for KVM_CAP_PPC_AIL_MODE_3Nicholas Piggin
Add KVM_CAP_PPC_AIL_MODE_3 to advertise the capability to set the AIL resource mode to 3 with the H_SET_MODE hypercall. This capability differs between processor types and KVM types (PR, HV, Nested HV), and affects guest-visible behaviour. QEMU will implement a cap-ail-mode-3 to control this behaviour[1], and use the KVM CAP if available to determine KVM support[2]. Reviewed-by: Fabiano Rosas <farosas@linux.ibm.com> Signed-off-by: Nicholas Piggin <npiggin@gmail.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2022-02-06tools headers UAPI: Sync linux/kvm.h with the kernel sourcesArnaldo Carvalho de Melo
To pick the changes in: f6c6804c43fa18d3 ("kvm: Move KVM_GET_XSAVE2 IOCTL definition at the end of kvm.h") That just rebuilds perf, as these patches don't add any new KVM ioctl to be harvested for the the 'perf trace' ioctl syscall argument beautifiers. This is also by now used by tools/testing/selftests/kvm/, a simple test build succeeded. This silences this perf build warning: Warning: Kernel ABI header at 'tools/include/uapi/linux/kvm.h' differs from latest version at 'include/uapi/linux/kvm.h' diff -u tools/include/uapi/linux/kvm.h include/uapi/linux/kvm.h Cc: Janosch Frank <frankja@linux.ibm.com> Cc: Paolo Bonzini <pbonzini@redhat.com> Link: http://lore.kernel.org/lkml/Yf+4k5Fs5Q3HdSG9@kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2022-01-28selftests: kvm: check dynamic bits against KVM_X86_XCOMP_GUEST_SUPPPaolo Bonzini
Provide coverage for the new API. Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2022-01-19kvm: selftests: sync uapi/linux/kvm.h with Linux headerPaolo Bonzini
KVM_CAP_XSAVE2 is out of sync due to a conflict. Copy the whole file while at it. Reported-by: Yang Zhong <yang.zhong@intel.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2022-01-14kvm: selftests: Add support for KVM_CAP_XSAVE2Wei Wang
When KVM_CAP_XSAVE2 is supported, userspace is expected to allocate buffer for KVM_GET_XSAVE2 and KVM_SET_XSAVE using the size returned by KVM_CHECK_EXTENSION(KVM_CAP_XSAVE2). Signed-off-by: Wei Wang <wei.w.wang@intel.com> Signed-off-by: Guang Zeng <guang.zeng@intel.com> Signed-off-by: Jing Liu <jing2.liu@intel.com> Signed-off-by: Yang Zhong <yang.zhong@intel.com> Message-Id: <20220105123532.12586-20-yang.zhong@intel.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2021-11-18tools headers UAPI: Sync linux/kvm.h with the kernel sourcesArnaldo Carvalho de Melo
To pick the changes in: b56639318bb2be66 ("KVM: SEV: Add support for SEV intra host migration") e615e355894e6197 ("KVM: x86: On emulation failure, convey the exit reason, etc. to userspace") a9d496d8e08ca1eb ("KVM: x86: Clarify the kvm_run.emulation_failure structure layout") c68dc1b577eabd56 ("KVM: x86: Report host tsc and realtime values in KVM_GET_CLOCK") dea8ee31a0392775 ("RISC-V: KVM: Add SBI v0.1 support") That just rebuilds perf, as these patches don't add any new KVM ioctl to be harvested for the the 'perf trace' ioctl syscall argument beautifiers. This is also by now used by tools/testing/selftests/kvm/, a simple test build succeeded. This silences this perf build warning: Warning: Kernel ABI header at 'tools/include/uapi/linux/kvm.h' differs from latest version at 'include/uapi/linux/kvm.h' diff -u tools/include/uapi/linux/kvm.h include/uapi/linux/kvm.h Cc: Anup Patel <anup@brainfault.org> Cc: Atish Patra <atish.patra@wdc.com> Cc: David Edmondson <david.edmondson@oracle.com> Cc: Oliver Upton <oupton@google.com> Cc: Paolo Bonzini <pbonzini@redhat.com> Cc: Peter Gonda <pgonda@google.com> Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2021-09-10tools headers UAPI: Sync linux/kvm.h with the kernel sourcesArnaldo Carvalho de Melo
To pick the changes in: f95937ccf5bd5e0a ("KVM: stats: Support linear and logarithmic histogram statistics") f0376edb1ddcab19 ("KVM: arm64: Add ioctl to fetch/store tags in a guest") ea7fc1bb1cd1b92b ("KVM: arm64: Introduce MTE VM feature") That just rebuilds perf, as these patches don't add any new KVM ioctl to be harvested for the the 'perf trace' ioctl syscall argument beautifiers. This is also by now used by tools/testing/selftests/kvm/, so that will pick the new KVM_STATS_TYPE_LINEAR_HIST and KVM_STATS_TYPE_LOG_HIST defines. This silences this perf build warning: Warning: Kernel ABI header at 'tools/include/uapi/linux/kvm.h' differs from latest version at 'include/uapi/linux/kvm.h' diff -u tools/include/uapi/linux/kvm.h include/uapi/linux/kvm.h Cc: Jing Zhang <jingzhangos@google.com> Cc: Marc Zyngier <maz@kernel.org> Cc: Paolo Bonzini <pbonzini@redhat.com> Cc: Steven Price <steven.price@arm.com> Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2021-07-01tools headers UAPI: Sync linux/kvm.h with the kernel sourcesArnaldo Carvalho de Melo
To pick the changes in: 19238e75bd8ed8ff ("kvm: x86: Allow userspace to handle emulation errors") cb082bfab59a224a ("KVM: stats: Add fd-based API to read binary stats data") b87cc116c7e1bc62 ("KVM: PPC: Book3S HV: Add KVM_CAP_PPC_RPT_INVALIDATE capability") f0376edb1ddcab19 ("KVM: arm64: Add ioctl to fetch/store tags in a guest") 0dbb11230437895f ("KVM: X86: Introduce KVM_HC_MAP_GPA_RANGE hypercall") 6dba940352038b56 ("KVM: x86: Introduce KVM_GET_SREGS2 / KVM_SET_SREGS2") 644f706719f0297b ("KVM: x86: hyper-v: Introduce KVM_CAP_HYPERV_ENFORCE_CPUID") That automatically adds support for these new ioctls: $ tools/perf/trace/beauty/kvm_ioctl.sh > before $ cp include/uapi/linux/kvm.h tools/include/uapi/linux/kvm.h $ tools/perf/trace/beauty/kvm_ioctl.sh > after $ diff -u before after --- before 2021-07-01 13:42:07.006387354 -0300 +++ after 2021-07-01 13:45:16.051649301 -0300 @@ -95,6 +95,9 @@ [0xc9] = "XEN_HVM_SET_ATTR", [0xca] = "XEN_VCPU_GET_ATTR", [0xcb] = "XEN_VCPU_SET_ATTR", + [0xcc] = "GET_SREGS2", + [0xcd] = "SET_SREGS2", + [0xce] = "GET_STATS_FD", [0xe0] = "CREATE_DEVICE", [0xe1] = "SET_DEVICE_ATTR", [0xe2] = "GET_DEVICE_ATTR", $ This silences these perf build warning: Warning: Kernel ABI header at 'tools/arch/x86/include/uapi/asm/kvm.h' differs from latest version at 'arch/x86/include/uapi/asm/kvm.h' diff -u tools/arch/x86/include/uapi/asm/kvm.h arch/x86/include/uapi/asm/kvm.h Warning: Kernel ABI header at 'tools/include/uapi/linux/kvm.h' differs from latest version at 'include/uapi/linux/kvm.h' diff -u tools/include/uapi/linux/kvm.h include/uapi/linux/kvm.h Cc: Aaron Lewis <aaronlewis@google.com> Cc: Ashish Kalra <ashish.kalra@amd.com> Cc: Bharata B Rao <bharata@linux.ibm.com> Cc: Jing Zhang <jingzhangos@google.com> Cc: Marc Zyngier <maz@kernel.org> Cc: Maxim Levitsky <mlevitsk@redhat.com> Cc: Michael Ellerman <mpe@ellerman.id.au> Cc: Paolo Bonzini <pbonzini@redhat.com> Cc: Steven Price <steven.price@arm.com> Cc: Vitaly Kuznetsov <vkuznets@redhat.com> Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2021-05-29Merge tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvmLinus Torvalds
Pull KVM fixes from Paolo Bonzini: "ARM fixes: - Another state update on exit to userspace fix - Prevent the creation of mixed 32/64 VMs - Fix regression with irqbypass not restarting the guest on failed connect - Fix regression with debug register decoding resulting in overlapping access - Commit exception state on exit to usrspace - Fix the MMU notifier return values - Add missing 'static' qualifiers in the new host stage-2 code x86 fixes: - fix guest missed wakeup with assigned devices - fix WARN reported by syzkaller - do not use BIT() in UAPI headers - make the kvm_amd.avic parameter bool PPC fixes: - make halt polling heuristics consistent with other architectures selftests: - various fixes - new performance selftest memslot_perf_test - test UFFD minor faults in demand_paging_test" * tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm: (44 commits) selftests: kvm: fix overlapping addresses in memslot_perf_test KVM: X86: Kill off ctxt->ud KVM: X86: Fix warning caused by stale emulation context KVM: X86: Use kvm_get_linear_rip() in single-step and #DB/#BP interception KVM: x86/mmu: Fix comment mentioning skip_4k KVM: VMX: update vcpu posted-interrupt descriptor when assigning device KVM: rename KVM_REQ_PENDING_TIMER to KVM_REQ_UNBLOCK KVM: x86: add start_assignment hook to kvm_x86_ops KVM: LAPIC: Narrow the timer latency between wait_lapic_expire and world switch selftests: kvm: do only 1 memslot_perf_test run by default KVM: X86: Use _BITUL() macro in UAPI headers KVM: selftests: add shared hugetlbfs backing source type KVM: selftests: allow using UFFD minor faults for demand paging KVM: selftests: create alias mappings when using shared memory KVM: selftests: add shmem backing source type KVM: selftests: refactor vm_mem_backing_src_type flags KVM: selftests: allow different backing source types KVM: selftests: compute correct demand paging size KVM: selftests: simplify setup_demand_paging error handling KVM: selftests: Print a message if /dev/kvm is missing ...
2021-05-27KVM: X86: Use _BITUL() macro in UAPI headersJoe Richey
Replace BIT() in KVM's UPAI header with _BITUL(). BIT() is not defined in the UAPI headers and its usage may cause userspace build errors. Fixes: fb04a1eddb1a ("KVM: X86: Implement ring-based dirty memory tracking") Signed-off-by: Joe Richey <joerichey@google.com> Message-Id: <20210521085849.37676-3-joerichey94@gmail.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2021-05-10tools headers UAPI: Sync linux/kvm.h with the kernel sourcesArnaldo Carvalho de Melo
To pick the changes in: 15fb7de1a7f5af0d ("KVM: SVM: Add KVM_SEV_RECEIVE_UPDATE_DATA command") 3bf725699bf62494 ("KVM: arm64: Add support for the KVM PTP service") 4cfdd47d6d95aca4 ("KVM: SVM: Add KVM_SEV SEND_START command") 54526d1fd59338fd ("KVM: x86: Support KVM VMs sharing SEV context") 5569e2e7a650dfff ("KVM: SVM: Add support for KVM_SEV_SEND_CANCEL command") 8b13c36493d8cb56 ("KVM: introduce KVM_CAP_SET_GUEST_DEBUG2") af43cbbf954b50ca ("KVM: SVM: Add support for KVM_SEV_RECEIVE_START command") d3d1af85e2c75bb5 ("KVM: SVM: Add KVM_SEND_UPDATE_DATA command") fe7e948837f312d8 ("KVM: x86: Add capability to grant VM access to privileged SGX attribute") That don't cause any change in tooling as it doesn't introduce any new ioctl. $ grep kvm tools/perf/trace/beauty/*.sh tools/perf/trace/beauty/kvm_ioctl.sh:printf "static const char *kvm_ioctl_cmds[] = {\n" tools/perf/trace/beauty/kvm_ioctl.sh:egrep $regex ${header_dir}/kvm.h | \ $ $ tools/perf/trace/beauty/kvm_ioctl.sh > before $ cp include/uapi/linux/kvm.h tools/include/uapi/linux/kvm.h $ tools/perf/trace/beauty/kvm_ioctl.sh > after $ diff -u before after $ This silences this perf build warning: Warning: Kernel ABI header at 'tools/include/uapi/linux/kvm.h' differs from latest version at 'include/uapi/linux/kvm.h' diff -u tools/include/uapi/linux/kvm.h include/uapi/linux/kvm.h Cc: Brijesh Singh <brijesh.singh@amd.com> Cc: Jianyong Wu <jianyong.wu@arm.com> Cc: Marc Zyngier <maz@kernel.org> Cc: Nathan Tempelman <natet@google.com> Cc: Paolo Bonzini <pbonzini@redhat.com> Cc: Sean Christopherson <seanjc@google.com> Cc: Steve Rutherford <srutherford@google.com> Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2021-03-10tools headers UAPI: Sync linux/kvm.h with the kernel sourcesArnaldo Carvalho de Melo
To pick the changes in: 30b5c851af7991ad ("KVM: x86/xen: Add support for vCPU runstate information") That don't cause any change in tooling as it doesn't introduce any new ioctl, just parameters to existing one. This silences this perf build warning: Warning: Kernel ABI header at 'tools/include/uapi/linux/kvm.h' differs from latest version at 'include/uapi/linux/kvm.h' diff -u tools/include/uapi/linux/kvm.h include/uapi/linux/kvm.h Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: David Woodhouse <dwmw@amazon.co.uk> Cc: Ian Rogers <irogers@google.com> Cc: Jiri Olsa <jolsa@kernel.org> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Paolo Bonzini <pbonzini@redhat.com> Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2021-03-06tools headers UAPI: Sync kvm.h headers with the kernel sourcesArnaldo Carvalho de Melo
To pick the changes in: d9a47edabc4f9481 ("KVM: PPC: Book3S HV: Introduce new capability for 2nd DAWR") 8d4e7e80838f45d3 ("KVM: x86: declare Xen HVM shared info capability and add test case") 40da8ccd724f7ca2 ("KVM: x86/xen: Add event channel interrupt vector upcall") These new IOCTLs are now supported on 'perf trace': $ tools/perf/trace/beauty/kvm_ioctl.sh > before $ cp include/uapi/linux/kvm.h tools/include/uapi/linux/kvm.h $ tools/perf/trace/beauty/kvm_ioctl.sh > after $ diff -u before after --- before 2021-02-23 09:55:46.229058308 -0300 +++ after 2021-02-23 09:55:57.509308058 -0300 @@ -91,6 +91,10 @@ [0xc1] = "GET_SUPPORTED_HV_CPUID", [0xc6] = "X86_SET_MSR_FILTER", [0xc7] = "RESET_DIRTY_RINGS", + [0xc8] = "XEN_HVM_GET_ATTR", + [0xc9] = "XEN_HVM_SET_ATTR", + [0xca] = "XEN_VCPU_GET_ATTR", + [0xcb] = "XEN_VCPU_SET_ATTR", [0xe0] = "CREATE_DEVICE", [0xe1] = "SET_DEVICE_ATTR", [0xe2] = "GET_DEVICE_ATTR", $ Addressing this perf build warning: Warning: Kernel ABI header at 'tools/include/uapi/linux/kvm.h' differs from latest version at 'include/uapi/linux/kvm.h' diff -u tools/include/uapi/linux/kvm.h include/uapi/linux/kvm.h Cc: David Woodhouse <dwmw@amazon.co.uk> Cc: Paul Mackerras <paulus@ozlabs.org> Cc: Ravi Bangoria <ravi.bangoria@linux.ibm.com> Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2021-02-12Merge tag 'kvmarm-5.12' of ↵Paolo Bonzini
git://git.kernel.org/pub/scm/linux/kernel/git/kvmarm/kvmarm into HEAD KVM/arm64 updates for Linux 5.12 - Make the nVHE EL2 object relocatable, resulting in much more maintainable code - Handle concurrent translation faults hitting the same page in a more elegant way - Support for the standard TRNG hypervisor call - A bunch of small PMU/Debug fixes - Allow the disabling of symbol export from assembly code - Simplification of the early init hypercall handling
2021-02-10KVM: PPC: Book3S HV: Introduce new capability for 2nd DAWRRavi Bangoria
Introduce KVM_CAP_PPC_DAWR1 which can be used by QEMU to query whether KVM supports 2nd DAWR or not. The capability is by default disabled even when the underlying CPU supports 2nd DAWR. QEMU needs to check and enable it manually to use the feature. Signed-off-by: Ravi Bangoria <ravi.bangoria@linux.ibm.com> Signed-off-by: Paul Mackerras <paulus@ozlabs.org>
2021-01-15tools headers UAPI: Sync kvm.h headers with the kernel sourcesArnaldo Carvalho de Melo
To pick the changes in: 647daca25d24fb6e ("KVM: SVM: Add support for booting APs in an SEV-ES guest") That don't cause any tooling change, just silences this perf build warning: Warning: Kernel ABI header at 'tools/include/uapi/linux/kvm.h' differs from latest version at 'include/uapi/linux/kvm.h' diff -u tools/include/uapi/linux/kvm.h include/uapi/linux/kvm.h Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Ian Rogers <irogers@google.com> Cc: Jiri Olsa <jolsa@kernel.org> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Paolo Bonzini <pbonzini@redhat.com> Cc: Tom Lendacky <thomas.lendacky@amd.com> Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2020-12-24tools headers UAPI: Sync kvm.h headers with the kernel sourcesArnaldo Carvalho de Melo
To pick the changes in: fb04a1eddb1a65b6 ("KVM: X86: Implement ring-based dirty memory tracking") That result in these change in tooling: $ tools/perf/trace/beauty/kvm_ioctl.sh > before $ cp include/uapi/linux/kvm.h tools/include/uapi/linux/kvm.h $ cp arch/x86/include/uapi/asm/kvm.h tools/arch/x86/include/uapi/asm/kvm.h $ tools/perf/trace/beauty/kvm_ioctl.sh > after $ diff -u before after --- before 2020-12-21 11:55:45.229737066 -0300 +++ after 2020-12-21 11:55:56.379983393 -0300 @@ -90,6 +90,7 @@ [0xc0] = "CLEAR_DIRTY_LOG", [0xc1] = "GET_SUPPORTED_HV_CPUID", [0xc6] = "X86_SET_MSR_FILTER", + [0xc7] = "RESET_DIRTY_RINGS", [0xe0] = "CREATE_DEVICE", [0xe1] = "SET_DEVICE_ATTR", [0xe2] = "GET_DEVICE_ATTR", $ Now one can use that string in filters when tracing ioctls, etc. And silences this perf build warning: Warning: Kernel ABI header at 'tools/include/uapi/linux/kvm.h' differs from latest version at 'include/uapi/linux/kvm.h' diff -u tools/include/uapi/linux/kvm.h include/uapi/linux/kvm.h Warning: Kernel ABI header at 'tools/arch/x86/include/uapi/asm/kvm.h' differs from latest version at 'arch/x86/include/uapi/asm/kvm.h' diff -u tools/arch/x86/include/uapi/asm/kvm.h arch/x86/include/uapi/asm/kvm.h Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Ian Rogers <irogers@google.com> Cc: Jiri Olsa <jolsa@kernel.org> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Paolo Bonzini <pbonzini@redhat.com> Cc: Peter Xu <peterx@redhat.com> Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2020-11-03tools kvm headers: Update KVM headers from the kernel sourcesArnaldo Carvalho de Melo
Some should cause changes in tooling, like the one adding LAST_EXCP, but the way it is structured end up not making that happen. The new SVM_EXIT_INVPCID should get used by arch/x86/util/kvm-stat.c, in the svm_exit_reasons table. The tools/perf/trace/beauty part has scripts to catch changes and automagically create tables, like tools/perf/trace/beauty/kvm_ioctl.sh, but changes are needed to make tools/perf/arch/x86/util/kvm-stat.c catch those automatically. These were handled by the existing scripts: $ tools/perf/trace/beauty/kvm_ioctl.sh > before $ cp include/uapi/linux/kvm.h tools/include/uapi/linux/kvm.h $ tools/perf/trace/beauty/kvm_ioctl.sh > after $ diff -u before after --- before 2020-11-03 08:43:52.910728608 -0300 +++ after 2020-11-03 08:44:04.273959984 -0300 @@ -89,6 +89,7 @@ [0xbf] = "SET_NESTED_STATE", [0xc0] = "CLEAR_DIRTY_LOG", [0xc1] = "GET_SUPPORTED_HV_CPUID", + [0xc6] = "X86_SET_MSR_FILTER", [0xe0] = "CREATE_DEVICE", [0xe1] = "SET_DEVICE_ATTR", [0xe2] = "GET_DEVICE_ATTR", $ $ tools/perf/trace/beauty/vhost_virtio_ioctl.sh > before $ cp include/uapi/linux/vhost.h tools/include/uapi/linux/vhost.h $ $ tools/perf/trace/beauty/vhost_virtio_ioctl.sh > after $ diff -u before after --- before 2020-11-03 08:45:55.522225198 -0300 +++ after 2020-11-03 08:46:12.881578666 -0300 @@ -37,4 +37,5 @@ [0x71] = "VDPA_GET_STATUS", [0x73] = "VDPA_GET_CONFIG", [0x76] = "VDPA_GET_VRING_NUM", + [0x78] = "VDPA_GET_IOVA_RANGE", }; $ This addresses these perf build warnings: Warning: Kernel ABI header at 'tools/arch/arm64/include/uapi/asm/kvm.h' differs from latest version at 'arch/arm64/include/uapi/asm/kvm.h' diff -u tools/arch/arm64/include/uapi/asm/kvm.h arch/arm64/include/uapi/asm/kvm.h Warning: Kernel ABI header at 'tools/arch/s390/include/uapi/asm/sie.h' differs from latest version at 'arch/s390/include/uapi/asm/sie.h' diff -u tools/arch/s390/include/uapi/asm/sie.h arch/s390/include/uapi/asm/sie.h Warning: Kernel ABI header at 'tools/arch/x86/include/uapi/asm/kvm.h' differs from latest version at 'arch/x86/include/uapi/asm/kvm.h' diff -u tools/arch/x86/include/uapi/asm/kvm.h arch/x86/include/uapi/asm/kvm.h Warning: Kernel ABI header at 'tools/arch/x86/include/uapi/asm/svm.h' differs from latest version at 'arch/x86/include/uapi/asm/svm.h' diff -u tools/arch/x86/include/uapi/asm/svm.h arch/x86/include/uapi/asm/svm.h Warning: Kernel ABI header at 'tools/include/uapi/linux/kvm.h' differs from latest version at 'include/uapi/linux/kvm.h' diff -u tools/include/uapi/linux/kvm.h include/uapi/linux/kvm.h Warning: Kernel ABI header at 'tools/include/uapi/linux/vhost.h' differs from latest version at 'include/uapi/linux/vhost.h' diff -u tools/include/uapi/linux/vhost.h include/uapi/linux/vhost.h Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Alexander Yarygin <yarygin@linux.vnet.ibm.com> Cc: Borislav Petkov <bp@suse.de> Cc: Christian Borntraeger <borntraeger@de.ibm.com> Cc: Cornelia Huck <cornelia.huck@de.ibm.com> Cc: David Ahern <dsahern@gmail.com> Cc: Ian Rogers <irogers@google.com> Cc: Jiri Olsa <jolsa@kernel.org> Cc: Joerg Roedel <jroedel@suse.de> Cc: Namhyung Kim <namhyung@kernel.org> Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2020-09-14tools headers UAPI: Sync kvm.h headers with the kernel sourcesArnaldo Carvalho de Melo
To pick the changes in: 15e9e35cd1dec2bc ("KVM: MIPS: Change the definition of kvm type") 004a01241c5a0d37 ("arm64/x86: KVM: Introduce steal-time cap") That do not result in any change in tooling, as the additions are not being used in any table generator. This silences these perf build warning: Warning: Kernel ABI header at 'tools/include/uapi/linux/kvm.h' differs from latest version at 'include/uapi/linux/kvm.h' diff -u tools/include/uapi/linux/kvm.h include/uapi/linux/kvm.h Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Andrew Jones <drjones@redhat.com> Cc: Huacai Chen <chenhc@lemote.com> Cc: Jiri Olsa <jolsa@kernel.org> Cc: Marc Zyngier <maz@kernel.org> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Paolo Bonzini <pbonzini@redhat.com> Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2020-08-12tools headers UAPI: Sync kvm.h headers with the kernel sourcesArnaldo Carvalho de Melo
To pick the changes in: 3edd68399dc1 ("KVM: x86: Add a capability for GUEST_MAXPHYADDR < HOST_MAXPHYADDR support") 1aa561b1a4c0 ("kvm: x86: Add "last CPU" to some KVM_EXIT information") 23a60f834406 ("s390/kvm: diagnose 0x318 sync and reset") That do not result in any change in tooling, as the additions are not being used in any table generator. This silences these perf build warning: Warning: Kernel ABI header at 'tools/include/uapi/linux/kvm.h' differs from latest version at 'include/uapi/linux/kvm.h' diff -u tools/include/uapi/linux/kvm.h include/uapi/linux/kvm.h Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Christian Borntraeger <borntraeger@de.ibm.com> Cc: Collin Walling <walling@linux.ibm.com> Cc: Jim Mattson <jmattson@google.com> Cc: Jiri Olsa <jolsa@kernel.org> Cc: Mohammed Gamal <mgamal@redhat.com> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Paolo Bonzini <pbonzini@redhat.com> Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2020-06-09tools headers UAPI: Sync kvm.h headers with the kernel sourcesArnaldo Carvalho de Melo
To pick the changes in: f97f5a56f597 ("x86/kvm/hyper-v: Add support for synthetic debugger interface") 850448f35aaf ("KVM: nVMX: Fix VMX preemption timer migration") 2c4c41325540 ("KVM: x86: Print symbolic names of VMX VM-Exit flags in traces") cc440cdad5b7 ("KVM: nSVM: implement KVM_GET_NESTED_STATE and KVM_SET_NESTED_STATE") f7d31e65368a ("x86/kvm/hyper-v: Explicitly align hcall param for kvm_hyperv_exit") 72de5fa4c161 ("KVM: x86: announce KVM_FEATURE_ASYNC_PF_INT") acd05785e48c ("kvm: add capability for halt polling") 3ecad8c2c1ff ("docs: fix broken references for ReST files that moved around") That do not result in any change in tooling, as the additions are not being used in any table generator. This silences these perf build warning: Warning: Kernel ABI header at 'tools/include/uapi/linux/kvm.h' differs from latest version at 'include/uapi/linux/kvm.h' diff -u tools/include/uapi/linux/kvm.h include/uapi/linux/kvm.h Warning: Kernel ABI header at 'tools/arch/x86/include/uapi/asm/kvm.h' differs from latest version at 'arch/x86/include/uapi/asm/kvm.h' diff -u tools/arch/x86/include/uapi/asm/kvm.h arch/x86/include/uapi/asm/kvm.h Warning: Kernel ABI header at 'tools/arch/x86/include/uapi/asm/vmx.h' differs from latest version at 'arch/x86/include/uapi/asm/vmx.h' diff -u tools/arch/x86/include/uapi/asm/vmx.h arch/x86/include/uapi/asm/vmx.h Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: David Matlack <dmatlack@google.com> Cc: Jiri Olsa <jolsa@kernel.org> Cc: Jon Doron <arilou@gmail.com> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Paolo Bonzini <pbonzini@redhat.com> Cc: Peter Shier <pshier@google.com> Cc: Sean Christopherson <sean.j.christopherson@intel.com> Cc: Vitaly Kuznetsov <vkuznets@redhat.com> Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2020-06-01Merge tag 'docs-5.8' of git://git.lwn.net/linuxLinus Torvalds
Pull documentation updates from Jonathan Corbet: "A fair amount of stuff this time around, dominated by yet another massive set from Mauro toward the completion of the RST conversion. I *really* hope we are getting close to the end of this. Meanwhile, those patches reach pretty far afield to update document references around the tree; there should be no actual code changes there. There will be, alas, more of the usual trivial merge conflicts. Beyond that we have more translations, improvements to the sphinx scripting, a number of additions to the sysctl documentation, and lots of fixes" * tag 'docs-5.8' of git://git.lwn.net/linux: (130 commits) Documentation: fixes to the maintainer-entry-profile template zswap: docs/vm: Fix typo accept_threshold_percent in zswap.rst tracing: Fix events.rst section numbering docs: acpi: fix old http link and improve document format docs: filesystems: add info about efivars content Documentation: LSM: Correct the basic LSM description mailmap: change email for Ricardo Ribalda docs: sysctl/kernel: document unaligned controls Documentation: admin-guide: update bug-hunting.rst docs: sysctl/kernel: document ngroups_max nvdimm: fixes to maintainter-entry-profile Documentation/features: Correct RISC-V kprobes support entry Documentation/features: Refresh the arch support status files Revert "docs: sysctl/kernel: document ngroups_max" docs: move locking-specific documents to locking/ docs: move digsig docs to the security book docs: move the kref doc into the core-api book docs: add IRQ documentation at the core-api book docs: debugging-via-ohci1394.txt: add it to the core-api book docs: fix references for ipmi.rst file ...
2020-04-20docs: fix broken references for ReST files that moved aroundMauro Carvalho Chehab
Some broken references happened due to shifting files around and ReST renames. Those can't be auto-fixed by the script, so let's fix them manually. Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org> Acked-by: Corentin Labbe <clabbe.montjoie@gmail.com> Link: https://lore.kernel.org/r/64773a12b4410aaf3e3be89e3ec7e34de2484eea.1586881715.git.mchehab+huawei@kernel.org Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2020-04-14tools headers kvm: Sync linux/kvm.h with the kernel sourcesArnaldo Carvalho de Melo
To pick up the changes from: 9a5788c615f5 ("KVM: PPC: Book3S HV: Add a capability for enabling secure guests") 3c9bd4006bfc ("KVM: x86: enable dirty log gradually in small chunks") 13da9ae1cdbf ("KVM: s390: protvirt: introduce and enable KVM_CAP_S390_PROTECTED") e0d2773d487c ("KVM: s390: protvirt: UV calls in support of diag308 0, 1") 19e122776886 ("KVM: S390: protvirt: Introduce instruction data area bounce buffer") 29b40f105ec8 ("KVM: s390: protvirt: Add initial vm and cpu lifecycle handling") So far we're ignoring those arch specific ioctls, we need to revisit this at some time to have arch specific tables, etc: $ grep S390 tools/perf/trace/beauty/kvm_ioctl.sh egrep -v " ((ARM|PPC|S390)_|[GS]ET_(DEBUGREGS|PIT2|XSAVE|TSC_KHZ)|CREATE_SPAPR_TCE_64)" | \ $ This addresses these tools/perf build warnings: Warning: Kernel ABI header at 'tools/arch/arm/include/uapi/asm/kvm.h' differs from latest version at 'arch/arm/include/uapi/asm/kvm.h' diff -u tools/arch/arm/include/uapi/asm/kvm.h arch/arm/include/uapi/asm/kvm.h Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Christian Borntraeger <borntraeger@de.ibm.com> Cc: Janosch Frank <frankja@linux.ibm.com> Cc: Jay Zhou <jianjay.zhou@huawei.com> Cc: Jiri Olsa <jolsa@kernel.org> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Paolo Bonzini <pbonzini@redhat.com> Cc: Paul Mackerras <paulus@ozlabs.org> Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2020-02-12tools headers kvm: Sync linux/kvm.h with the kernel sourcesArnaldo Carvalho de Melo
To pick up the changes from: 7de3f1423ff9 ("KVM: s390: Add new reset vcpu API") So far we're ignoring those arch specific ioctls, we need to revisit this at some time to have arch specific tables, etc: $ grep S390 tools/perf/trace/beauty/kvm_ioctl.sh egrep -v " ((ARM|PPC|S390)_|[GS]ET_(DEBUGREGS|PIT2|XSAVE|TSC_KHZ)|CREATE_SPAPR_TCE_64)" | \ $ This addresses these tools/perf build warnings: Warning: Kernel ABI header at 'tools/arch/arm/include/uapi/asm/kvm.h' differs from latest version at 'arch/arm/include/uapi/asm/kvm.h' diff -u tools/arch/arm/include/uapi/asm/kvm.h arch/arm/include/uapi/asm/kvm.h Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Christian Borntraeger <borntraeger@de.ibm.com> Cc: Janosch Frank <frankja@linux.ibm.com> Cc: Jiri Olsa <jolsa@kernel.org> Cc: Namhyung Kim <namhyung@kernel.org> Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2019-12-11tools headers kvm: Sync linux/kvm.h with the kernel sourcesArnaldo Carvalho de Melo
To pick up the changes from: 22945688acd4 ("KVM: PPC: Book3S HV: Support reset of secure guest") No tools changes are caused by this, as the only defines so far used from these files are for syscall arg pretty printing are: $ grep KVM tools/perf/trace/beauty/*.sh tools/perf/trace/beauty/kvm_ioctl.sh:regex='^#[[:space:]]*define[[:space:]]+KVM_(\w+)[[:space:]]+_IO[RW]*\([[:space:]]*KVMIO[[:space:]]*,[[:space:]]*(0x[[:xdigit:]]+).*' $ This addresses these tools/perf build warnings: Warning: Kernel ABI header at 'tools/include/uapi/linux/kvm.h' differs from latest version at 'include/uapi/linux/kvm.h' diff -u tools/include/uapi/linux/kvm.h include/uapi/linux/kvm.h Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Bharata B Rao <bharata@linux.ibm.com> Cc: Jiri Olsa <jolsa@kernel.org> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Paul Mackerras <paulus@ozlabs.org> Link: https://lkml.kernel.org/n/tip-bdbe4x02johhul05a03o27zj@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2019-12-02tools headers kvm: Sync kvm headers with the kernel sourcesArnaldo Carvalho de Melo
To pick up the changes from: 14edff88315a Merge tag 'kvmarm-5.5' of git://git.kernel.org/pub/scm/linux/kernel/git/kvmarm/kvmarm into HEAD a4b28f5c6798 Merge remote-tracking branch 'kvmarm/kvm-arm64/stolen-time' into kvmarm-master/next 58772e9a3db7 ("KVM: arm64: Provide VCPU attributes for stolen time") da345174ceca ("KVM: arm/arm64: Allow user injection of external data aborts") c726200dd106 ("KVM: arm/arm64: Allow reporting non-ISV data aborts to userspace") efe5ddcae496 ("KVM: PPC: Book3S HV: XIVE: Allow userspace to set the # of VPs") No tools changes are caused by this, as the only defines so far used from these files are for syscall arg pretty printing are: $ grep KVM tools/perf/trace/beauty/*.sh tools/perf/trace/beauty/kvm_ioctl.sh:regex='^#[[:space:]]*define[[:space:]]+KVM_(\w+)[[:space:]]+_IO[RW]*\([[:space:]]*KVMIO[[:space:]]*,[[:space:]]*(0x[[:xdigit:]]+).*' $ Some are also include by: tools/perf/arch/x86/util/kvm-stat.c tools/perf/arch/powerpc/util/kvm-stat.c This addresses these tools/perf build warnings: Warning: Kernel ABI header at 'tools/include/uapi/linux/kvm.h' differs from latest version at 'include/uapi/linux/kvm.h' diff -u tools/include/uapi/linux/kvm.h include/uapi/linux/kvm.h Warning: Kernel ABI header at 'tools/arch/powerpc/include/uapi/asm/kvm.h' differs from latest version at 'arch/powerpc/include/uapi/asm/kvm.h' diff -u tools/arch/powerpc/include/uapi/asm/kvm.h arch/powerpc/include/uapi/asm/kvm.h Warning: Kernel ABI header at 'tools/arch/arm/include/uapi/asm/kvm.h' differs from latest version at 'arch/arm/include/uapi/asm/kvm.h' diff -u tools/arch/arm/include/uapi/asm/kvm.h arch/arm/include/uapi/asm/kvm.h Warning: Kernel ABI header at 'tools/arch/arm64/include/uapi/asm/kvm.h' differs from latest version at 'arch/arm64/include/uapi/asm/kvm.h' diff -u tools/arch/arm64/include/uapi/asm/kvm.h arch/arm64/include/uapi/asm/kvm.h Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Christoffer Dall <christoffer.dall@arm.com> Cc: Fabiano Rosas <farosas@linux.ibm.com> Cc: Greg Kurz <groug@kaod.org> Cc: Jiri Olsa <jolsa@kernel.org> Cc: Marc Zyngier <maz@kernel.org> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Paul Mackerras <paulus@ozlabs.org> Cc: Steven Price <steven.price@arm.com> Link: https://lkml.kernel.org/n/tip-qrjdudhq25mk5bfnhveofbm4@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2019-10-15tools headers kvm: Sync kvm.h headers with the kernel sourcesArnaldo Carvalho de Melo
To pick the changes in: 344c6c804703 ("KVM/Hyper-V: Add new KVM capability KVM_CAP_HYPERV_DIRECT_TLBFLUSH") dee04eee9182 ("KVM: RISC-V: Add KVM_REG_RISCV for ONE_REG interface") These trigger the rebuild of this object: CC /tmp/build/perf/trace/beauty/ioctl.o But do not result in any change in tooling, as the additions are not being used in any table generatator. This silences this perf build warning: Warning: Kernel ABI header at 'tools/include/uapi/linux/kvm.h' differs from latest version at 'include/uapi/linux/kvm.h' diff -u tools/include/uapi/linux/kvm.h include/uapi/linux/kvm.h Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Anup Patel <Anup.Patel@wdc.com> Cc: Jiri Olsa <jolsa@kernel.org> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Paolo Bonzini <pbonzini@redhat.com> Cc: Paul Walmsley <paul.walmsley@sifive.com> Cc: Tianyu Lan <Tianyu.Lan@microsoft.com> Link: https://lkml.kernel.org/n/tip-d1v48a0qfoe98u5v9tn3mu5u@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2019-09-30tools headers kvm: Sync kvm headers with the kernel sourcesArnaldo Carvalho de Melo
To pick the changes in: 200824f55eef ("KVM: s390: Disallow invalid bits in kvm_valid_regs and kvm_dirty_regs") 4a53d99dd0c2 ("KVM: VMX: Introduce exit reason for receiving INIT signal on guest-mode") 7396d337cfad ("KVM: x86: Return to userspace with internal error on unexpected exit reason") 92f35b751c71 ("KVM: arm/arm64: vgic: Allow more than 256 vcpus for KVM_IRQ_LINE") None of them trigger any changes in tooling, this time this is just to silence these perf build warnings: Warning: Kernel ABI header at 'tools/include/uapi/linux/kvm.h' differs from latest version at 'include/uapi/linux/kvm.h' diff -u tools/include/uapi/linux/kvm.h include/uapi/linux/kvm.h Warning: Kernel ABI header at 'tools/arch/x86/include/uapi/asm/vmx.h' differs from latest version at 'arch/x86/include/uapi/asm/vmx.h' diff -u tools/arch/x86/include/uapi/asm/vmx.h arch/x86/include/uapi/asm/vmx.h Warning: Kernel ABI header at 'tools/arch/s390/include/uapi/asm/kvm.h' differs from latest version at 'arch/s390/include/uapi/asm/kvm.h' diff -u tools/arch/s390/include/uapi/asm/kvm.h arch/s390/include/uapi/asm/kvm.h Warning: Kernel ABI header at 'tools/arch/arm/include/uapi/asm/kvm.h' differs from latest version at 'arch/arm/include/uapi/asm/kvm.h' diff -u tools/arch/arm/include/uapi/asm/kvm.h arch/arm/include/uapi/asm/kvm.h Warning: Kernel ABI header at 'tools/arch/arm64/include/uapi/asm/kvm.h' differs from latest version at 'arch/arm64/include/uapi/asm/kvm.h' diff -u tools/arch/arm64/include/uapi/asm/kvm.h arch/arm64/include/uapi/asm/kvm.h Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Janosch Frank <frankja@linux.ibm.com> Cc: Jiri Olsa <jolsa@kernel.org> Cc: Liran Alon <liran.alon@oracle.com> Cc: Marc Zyngier <maz@kernel.org> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Paolo Bonzini <pbonzini@redhat.com> Cc: Thomas Huth <thuth@redhat.com> Link: https://lkml.kernel.org/n/tip-akuugvvjxte26kzv23zp5d2z@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2019-07-29Merge tag 'perf-urgent-for-mingo-5.3-20190729' of ↵Ingo Molnar
git://git.kernel.org/pub/scm/linux/kernel/git/acme/linux into perf/urgent Pull perf/urgent fixes from Arnaldo Carvalho de Melo: perf header: Vince Weaver: - Fix divide by zero error if f_header.attr_size==0, found using a perf tool fuzzer. Numfor Mbiziwo-Tiapo: - Silence use of uninitialized value warning pointed out by clang's MSAN tool. libbpf: Andrii Nakryiko: - Fix missing __WORDSIZE definition in some systems, such as musl libc (Alpine Linux). tools header UAPI: Arnaldo Carvalho de Melo: - Sync headers to address perf build warnings: - syscalls_64.tbl and generic unistd.h to pick up clone3 and pidfd_open. - With new ioctls: kvm.h, drm.h and usbdevice_fs.h. - No tooling change: mman.h, sched.h and if_link.h. Documentation: Vince Weaver: - Fix perf.data documentation units for memory size, its kB, not bytes. Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com> Signed-off-by: Ingo Molnar <mingo@kernel.org>
2019-07-26tools headers UAPI: Update tools's copy of kvm.h headersArnaldo Carvalho de Melo
Picking the changes from: 66bb8a065f5a ("KVM: x86: PMU Event Filter") f087a02941fe ("KVM: nVMX: Stash L1's CR3 in vmcs01.GUEST_CR3 on nested entry w/o EPT") 99adb567632b ("KVM: arm/arm64: Add save/restore support for firmware workaround state") Silencing this perf build warning: Warning: Kernel ABI header at 'tools/arch/arm/include/uapi/asm/kvm.h' differs from latest version at 'arch/arm/include/uapi/asm/kvm.h' diff -u tools/arch/arm/include/uapi/asm/kvm.h arch/arm/include/uapi/asm/kvm.h Warning: Kernel ABI header at 'tools/arch/arm64/include/uapi/asm/kvm.h' differs from latest version at 'arch/arm64/include/uapi/asm/kvm.h' diff -u tools/arch/arm64/include/uapi/asm/kvm.h arch/arm64/include/uapi/asm/kvm.h Warning: Kernel ABI header at 'tools/arch/x86/include/uapi/asm/vmx.h' differs from latest version at 'arch/x86/include/uapi/asm/vmx.h' diff -u tools/arch/x86/include/uapi/asm/vmx.h arch/x86/include/uapi/asm/vmx.h Warning: Kernel ABI header at 'tools/arch/x86/include/uapi/asm/kvm.h' differs from latest version at 'arch/x86/include/uapi/asm/kvm.h' diff -u tools/arch/x86/include/uapi/asm/kvm.h arch/x86/include/uapi/asm/kvm.h Warning: Kernel ABI header at 'tools/include/uapi/linux/kvm.h' differs from latest version at 'include/uapi/linux/kvm.h' diff -u tools/include/uapi/linux/kvm.h include/uapi/linux/kvm.h Now 'perf trace' and other code that might use the tools/perf/trace/beauty autogenerated tables will be able to translate this new ioctl code into a string: $ tools/perf/trace/beauty/kvm_ioctl.sh > before $ $ cp include/uapi/linux/kvm.h tools/include/uapi/linux/kvm.h $ tools/perf/trace/beauty/kvm_ioctl.sh > after $ diff -u before after --- before 2019-07-26 12:32:47.959220236 -0300 +++ after 2019-07-26 12:33:05.766464871 -0300 @@ -79,6 +79,7 @@ [0xac] = "SET_ONE_REG", [0xad] = "KVMCLOCK_CTRL", [0xb0] = "GET_REG_LIST", + [0xb2] = "SET_PMU_EVENT_FILTER", [0xb7] = "SMI", [0xba] = "MEMORY_ENCRYPT_OP", [0xbb] = "MEMORY_ENCRYPT_REG_REGION", $ Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Andre Przywara <andre.przywara@arm.com> Cc: Brendan Gregg <brendan.d.gregg@gmail.com> Cc: Eric Hankland <ehankland@google.com> Cc: Jiri Olsa <jolsa@kernel.org> Cc: Luis Cláudio Gonçalves <lclaudio@redhat.com> Cc: Marc Zyngier <marc.zyngier@arm.com> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Paolo Bonzini <pbonzini@redhat.com> Cc: Sean Christopherson <sean.j.christopherson@intel.com> Link: https://lkml.kernel.org/n/tip-py1gcmt6rboehlwg6zvagfg2@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2019-07-24Documentation: move Documentation/virtual to Documentation/virtChristoph Hellwig
Renaming docs seems to be en vogue at the moment, so fix on of the grossly misnamed directories. We usually never use "virtual" as a shortcut for virtualization in the kernel, but always virt, as seen in the virt/ top-level directory. Fix up the documentation to match that. Fixes: ed16648eb5b8 ("Move kvm, uml, and lguest subdirectories under a common "virtual" directory, I.E:") Signed-off-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2019-07-11Merge tag 'kvm-arm-for-5.3' of ↵Paolo Bonzini
git://git.kernel.org/pub/scm/linux/kernel/git/kvmarm/kvmarm into HEAD KVM/arm updates for 5.3 - Add support for chained PMU counters in guests - Improve SError handling - Handle Neoverse N1 erratum #1349291 - Allow side-channel mitigation status to be migrated - Standardise most AArch64 system register accesses to msr_s/mrs_s - Fix host MPIDR corruption on 32bit
2019-06-04KVM: X86: Provide a capability to disable cstate msr read interceptsWanpeng Li
Allow guest reads CORE cstate when exposing host CPU power management capabilities to the guest. PKG cstate is restricted to avoid a guest to get the whole package information in multi-tenant scenario. Cc: Paolo Bonzini <pbonzini@redhat.com> Cc: Radim Krčmář <rkrcmar@redhat.com> Cc: Sean Christopherson <sean.j.christopherson@intel.com> Cc: Liran Alon <liran.alon@oracle.com> Signed-off-by: Wanpeng Li <wanpengli@tencent.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
generated by cgit v1.2.3 (git 2.0.4) at 2026-01-03 16:34:49 +0000