Linus Torvalds 0c02183427 ARM: ... * Clean up vCPU targets, always returning generic v8 as the preferred target * Trap forwarding infrastructure for nested virtualization (used for traps that are taken from an L2 guest and are needed by the L1 hypervisor) * FEAT_TLBIRANGE support to only invalidate specific ranges of addresses when collapsing a table PTE to a block PTE. This avoids that the guest refills the TLBs again for addresses that aren't covered by the table PTE. * Fix vPMU issues related to handling of PMUver. * Don't unnecessary align non-stack allocations in the EL2 VA space * Drop HCR_VIRT_EXCP_MASK, which was never used... * Don't use smp_processor_id() in kvm_arch_vcpu_load(), but the cpu parameter instead * Drop redundant call to kvm_set_pfn_accessed() in user_mem_abort() * Remove prototypes without implementations RISC-V: * Zba, Zbs, Zicntr, Zicsr, Zifencei, and Zihpm support for guest * Added ONE_REG interface for SATP mode * Added ONE_REG interface to enable/disable multiple ISA extensions * Improved error codes returned by ONE_REG interfaces * Added KVM_GET_REG_LIST ioctl() implementation for KVM RISC-V * Added get-reg-list selftest for KVM RISC-V s390: * PV crypto passthrough enablement (Tony, Steffen, Viktor, Janosch) Allows a PV guest to use crypto cards. Card access is governed by the firmware and once a crypto queue is "bound" to a PV VM every other entity (PV or not) looses access until it is not bound anymore. Enablement is done via flags when creating the PV VM. * Guest debug fixes (Ilya) x86: * Clean up KVM's handling of Intel architectural events * Intel bugfixes * Add support for SEV-ES DebugSwap, allowing SEV-ES guests to use debug registers and generate/handle #DBs * Clean up LBR virtualization code * Fix a bug where KVM fails to set the target pCPU during an IRTE update * Fix fatal bugs in SEV-ES intrahost migration * Fix a bug where the recent (architecturally correct) change to reinject #BP and skip INT3 broke SEV guests (can't decode INT3 to skip it) * Retry APIC map recalculation if a vCPU is added/enabled * Overhaul emergency reboot code to bring SVM up to par with VMX, tie the "emergency disabling" behavior to KVM actually being loaded, and move all of the logic within KVM * Fix user triggerable WARNs in SVM where KVM incorrectly assumes the TSC ratio MSR cannot diverge from the default when TSC scaling is disabled up related code * Add a framework to allow "caching" feature flags so that KVM can check if the guest can use a feature without needing to search guest CPUID * Rip out the ancient MMU_DEBUG crud and replace the useful bits with CONFIG_KVM_PROVE_MMU * Fix KVM's handling of !visible guest roots to avoid premature triple fault injection * Overhaul KVM's page-track APIs, and KVMGT's usage, to reduce the API surface that is needed by external users (currently only KVMGT), and fix a variety of issues in the process This last item had a silly one-character bug in the topic branch that was sent to me. Because it caused pretty bad selftest failures in some configurations, I decided to squash in the fix. So, while the exact commit ids haven't been in linux-next, the code has (from the kvm-x86 tree). Generic: * Wrap kvm_{gfn,hva}_range.pte in a union to allow mmu_notifier events to pass action specific data without needing to constantly update the main handlers. * Drop unused function declarations Selftests: * Add testcases to x86's sync_regs_test for detecting KVM TOCTOU bugs * Add support for printf() in guest code and covert all guest asserts to use printf-based reporting * Clean up the PMU event filter test and add new testcases * Include x86 selftests in the KVM x86 MAINTAINERS entry -----BEGIN PGP SIGNATURE----- iQFIBAABCAAyFiEE8TM4V0tmI4mGbHaCv/vSX3jHroMFAmT1m0kUHHBib256aW5p QHJlZGhhdC5jb20ACgkQv/vSX3jHroMNgggAiN7nz6UC423FznuI+yO3TLm8tkx1 CpKh5onqQogVtchH+vrngi97cfOzZb1/AtifY90OWQi31KEWhehkeofcx7G6ERhj 5a9NFADY1xGBsX4exca/VHDxhnzsbDWaWYPXw5vWFWI6erft9Mvy3tp1LwTvOzqM v8X4aWz+g5bmo/DWJf4Wu32tEU6mnxzkrjKU14JmyqQTBawVmJ3RYvHVJ/Agpw+n hRtPAy7FU6XTdkmq/uCT+KUHuJEIK0E/l1js47HFAqSzwdW70UDg14GGo1o4ETxu RjZQmVNvL57yVgi6QU38/A0FWIsWQm5IlaX1Ug6x8pjZPnUKNbo9BY4T1g== =W+4p -----END PGP SIGNATURE----- Merge tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm Pull kvm updates from Paolo Bonzini: "ARM: - Clean up vCPU targets, always returning generic v8 as the preferred target - Trap forwarding infrastructure for nested virtualization (used for traps that are taken from an L2 guest and are needed by the L1 hypervisor) - FEAT_TLBIRANGE support to only invalidate specific ranges of addresses when collapsing a table PTE to a block PTE. This avoids that the guest refills the TLBs again for addresses that aren't covered by the table PTE. - Fix vPMU issues related to handling of PMUver. - Don't unnecessary align non-stack allocations in the EL2 VA space - Drop HCR_VIRT_EXCP_MASK, which was never used... - Don't use smp_processor_id() in kvm_arch_vcpu_load(), but the cpu parameter instead - Drop redundant call to kvm_set_pfn_accessed() in user_mem_abort() - Remove prototypes without implementations RISC-V: - Zba, Zbs, Zicntr, Zicsr, Zifencei, and Zihpm support for guest - Added ONE_REG interface for SATP mode - Added ONE_REG interface to enable/disable multiple ISA extensions - Improved error codes returned by ONE_REG interfaces - Added KVM_GET_REG_LIST ioctl() implementation for KVM RISC-V - Added get-reg-list selftest for KVM RISC-V s390: - PV crypto passthrough enablement (Tony, Steffen, Viktor, Janosch) Allows a PV guest to use crypto cards. Card access is governed by the firmware and once a crypto queue is "bound" to a PV VM every other entity (PV or not) looses access until it is not bound anymore. Enablement is done via flags when creating the PV VM. - Guest debug fixes (Ilya) x86: - Clean up KVM's handling of Intel architectural events - Intel bugfixes - Add support for SEV-ES DebugSwap, allowing SEV-ES guests to use debug registers and generate/handle #DBs - Clean up LBR virtualization code - Fix a bug where KVM fails to set the target pCPU during an IRTE update - Fix fatal bugs in SEV-ES intrahost migration - Fix a bug where the recent (architecturally correct) change to reinject #BP and skip INT3 broke SEV guests (can't decode INT3 to skip it) - Retry APIC map recalculation if a vCPU is added/enabled - Overhaul emergency reboot code to bring SVM up to par with VMX, tie the "emergency disabling" behavior to KVM actually being loaded, and move all of the logic within KVM - Fix user triggerable WARNs in SVM where KVM incorrectly assumes the TSC ratio MSR cannot diverge from the default when TSC scaling is disabled up related code - Add a framework to allow "caching" feature flags so that KVM can check if the guest can use a feature without needing to search guest CPUID - Rip out the ancient MMU_DEBUG crud and replace the useful bits with CONFIG_KVM_PROVE_MMU - Fix KVM's handling of !visible guest roots to avoid premature triple fault injection - Overhaul KVM's page-track APIs, and KVMGT's usage, to reduce the API surface that is needed by external users (currently only KVMGT), and fix a variety of issues in the process Generic: - Wrap kvm_{gfn,hva}_range.pte in a union to allow mmu_notifier events to pass action specific data without needing to constantly update the main handlers. - Drop unused function declarations Selftests: - Add testcases to x86's sync_regs_test for detecting KVM TOCTOU bugs - Add support for printf() in guest code and covert all guest asserts to use printf-based reporting - Clean up the PMU event filter test and add new testcases - Include x86 selftests in the KVM x86 MAINTAINERS entry" * tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm: (279 commits) KVM: x86/mmu: Include mmu.h in spte.h KVM: x86/mmu: Use dummy root, backed by zero page, for !visible guest roots KVM: x86/mmu: Disallow guest from using !visible slots for page tables KVM: x86/mmu: Harden TDP MMU iteration against root w/o shadow page KVM: x86/mmu: Harden new PGD against roots without shadow pages KVM: x86/mmu: Add helper to convert root hpa to shadow page drm/i915/gvt: Drop final dependencies on KVM internal details KVM: x86/mmu: Handle KVM bookkeeping in page-track APIs, not callers KVM: x86/mmu: Drop @slot param from exported/external page-track APIs KVM: x86/mmu: Bug the VM if write-tracking is used but not enabled KVM: x86/mmu: Assert that correct locks are held for page write-tracking KVM: x86/mmu: Rename page-track APIs to reflect the new reality KVM: x86/mmu: Drop infrastructure for multiple page-track modes KVM: x86/mmu: Use page-track notifiers iff there are external users KVM: x86/mmu: Move KVM-only page-track declarations to internal header KVM: x86: Remove the unused page-track hook track_flush_slot() drm/i915/gvt: switch from ->track_flush_slot() to ->track_remove_region() KVM: x86: Add a new page-track hook to handle memslot deletion drm/i915/gvt: Don't bother removing write-protection on to-be-deleted slot KVM: x86: Reject memslot MOVE operations if KVMGT is attached ...		2023-09-07 13:52:20 -07:00
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kvm	ARM:	2023-09-07 13:52:20 -07:00
lib
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