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* powerpc/iommu: Incorrect DDW Table is referenced for SR-IOV deviceGaurav Batra2023-05-172-5/+12
| | | | | | | | | | | | | | | | | | | | | | | | | | | For an SR-IOV device, while enabling DDW, a new table is created and added at index 1 in the group. In the below 2 scenarios, the table is incorrectly referenced at index 0 (which is where the table is for default DMA window). 1. When adding DDW This issue is exposed with "slub_debug". Error thrown out from dma_iommu_dma_supported() Warning: IOMMU offset too big for device mask mask: 0xffffffff, table offset: 0x800000000000000 2. During Dynamic removal of the PCI device. Error is from iommu_tce_table_put() since a NULL table pointer is passed in. Fixes: 381ceda88c4c ("powerpc/pseries/iommu: Make use of DDW for indirect mapping") Cc: stable@vger.kernel.org # v5.15+ Signed-off-by: Gaurav Batra <gbatra@linux.vnet.ibm.com> Reviewed-by: Brian King <brking@linux.vnet.ibm.com> Signed-off-by: Michael Ellerman <mpe@ellerman.id.au> Link: https://msgid.link/20230505184701.91613-1-gbatra@linux.vnet.ibm.com
* powerpc/iommu: DMA address offset is incorrectly calculated with 2MB TCEsGaurav Batra2023-05-171-4/+7
| | | | | | | | | | | | | | | | | | When DMA window is backed by 2MB TCEs, the DMA address for the mapped page should be the offset of the page relative to the 2MB TCE. The code was incorrectly setting the DMA address to the beginning of the TCE range. Mellanox driver is reporting timeout trying to ENABLE_HCA for an SR-IOV ethernet port, when DMA window is backed by 2MB TCEs. Fixes: 387273118714 ("powerps/pseries/dma: Add support for 2M IOMMU page size") Cc: stable@vger.kernel.org # v5.16+ Signed-off-by: Gaurav Batra <gbatra@linux.vnet.ibm.com> Reviewed-by: Greg Joyce <gjoyce@linux.vnet.ibm.com> Reviewed-by: Brian King <brking@linux.vnet.ibm.com> Signed-off-by: Michael Ellerman <mpe@ellerman.id.au> Link: https://msgid.link/20230504175913.83844-1-gbatra@linux.vnet.ibm.com
* powerpc/iommu: Remove iommu_del_device()Jason Gunthorpe2023-05-174-72/+0
| | | | | | | | | | | | | | | | | Now that power calls iommu_device_register() and populates its groups using iommu_ops->device_group it should not be calling iommu_group_remove_device(). The core code owns the groups and all the other related iommu data, it will clean it up automatically. Remove the bus notifiers and explicit calls to iommu_group_remove_device(). Fixes: a940904443e4 ("powerpc/iommu: Add iommu_ops to report capabilities and allow blocking domains") Signed-off-by: Jason Gunthorpe <jgg@nvidia.com> Signed-off-by: Michael Ellerman <mpe@ellerman.id.au> Link: https://msgid.link/0-v1-1421774b874b+167-ppc_device_group_jgg@nvidia.com
* powerpc/crypto: Fix aes-gcm-p10 build when VSX=nMichael Ellerman2023-05-151-1/+1
| | | | | | | | | | | | | | | | | When VSX is disabled, eg. microwatt_defconfig, the build fails with: In function ‘enable_kernel_vsx’, inlined from ‘vsx_begin’ at arch/powerpc/crypto/aes-gcm-p10-glue.c:68:2, inlined from ‘p10_aes_gcm_crypt.constprop’ at arch/powerpc/crypto/aes-gcm-p10-glue.c:244:2: ... arch/powerpc/include/asm/switch_to.h:86:9: note: in expansion of macro ‘BUILD_BUG’ 86 | BUILD_BUG(); | ^~~~~~~~~ Fix it by making the p10-aes-gcm code depend on VSX. Signed-off-by: Michael Ellerman <mpe@ellerman.id.au> Link: https://msgid.link/20230515124731.122962-1-mpe%40ellerman.id.au
* powerpc/bpf: populate extable entries only during the last passHari Bathini2023-05-151-0/+2
| | | | | | | | | | | | | | | | | Since commit 85e031154c7c ("powerpc/bpf: Perform complete extra passes to update addresses"), two additional passes are performed to avoid space and CPU time wastage on powerpc. But these extra passes led to WARN_ON_ONCE() hits in bpf_add_extable_entry() as extable entries are populated again, during the extra pass, without resetting the index. Fix it by resetting entry index before repopulating extable entries, if and when there is an additional pass. Fixes: 85e031154c7c ("powerpc/bpf: Perform complete extra passes to update addresses") Cc: stable@vger.kernel.org # v6.3+ Signed-off-by: Hari Bathini <hbathini@linux.ibm.com> Reviewed-by: Naveen N. Rao <naveen.n.rao@linux.vnet.ibm.com> Signed-off-by: Michael Ellerman <mpe@ellerman.id.au> Link: https://msgid.link/20230425065829.18189-1-hbathini@linux.ibm.com
* powerpc/boot: Disable power10 features after BOOTAFLAGS assignmentNathan Chancellor2023-05-121-2/+4
| | | | | | | | | | | | | | | | | | | | | | | | | When building the boot wrapper assembly files with clang after commit 648a1783fe25 ("powerpc/boot: Fix boot wrapper code generation with CONFIG_POWER10_CPU"), the following warnings appear for each file built: '-prefixed' is not a recognized feature for this target (ignoring feature) '-pcrel' is not a recognized feature for this target (ignoring feature) While it is questionable whether or not LLVM should be emitting a warning when passed negative versions of code generation flags when building assembly files (since it does not emit a warning for the altivec and vsx flags), it is easy enough to work around this by just moving the disabled flags to BOOTCFLAGS after the assignment of BOOTAFLAGS, so that they are not added when building assembly files. Do so to silence the warnings. Fixes: 648a1783fe25 ("powerpc/boot: Fix boot wrapper code generation with CONFIG_POWER10_CPU") Link: https://github.com/ClangBuiltLinux/linux/issues/1839 Reviewed-by: Nicholas Piggin <npiggin@gmail.com> Signed-off-by: Nathan Chancellor <nathan@kernel.org> Signed-off-by: Michael Ellerman <mpe@ellerman.id.au> Link: https://msgid.link/20230427-remove-power10-args-from-boot-aflags-clang-v1-1-9107f7c943bc@kernel.org
* powerpc/64s/radix: Fix soft dirty trackingMichael Ellerman2023-05-111-2/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | It was reported that soft dirty tracking doesn't work when using the Radix MMU. The tracking is supposed to work by clearing the soft dirty bit for a mapping and then write protecting the PTE. If/when the page is written to, a page fault occurs and the soft dirty bit is added back via pte_mkdirty(). For example in wp_page_reuse(): entry = maybe_mkwrite(pte_mkdirty(entry), vma); if (ptep_set_access_flags(vma, vmf->address, vmf->pte, entry, 1)) update_mmu_cache(vma, vmf->address, vmf->pte); Unfortunately on radix _PAGE_SOFTDIRTY is being dropped by radix__ptep_set_access_flags(), called from ptep_set_access_flags(), meaning the soft dirty bit is not set even though the page has been written to. Fix it by adding _PAGE_SOFTDIRTY to the set of bits that are able to be changed in radix__ptep_set_access_flags(). Fixes: b0b5e9b13047 ("powerpc/mm/radix: Add radix pte #defines") Cc: stable@vger.kernel.org # v4.7+ Reported-by: Dan Horák <dan@danny.cz> Link: https://lore.kernel.org/r/20230511095558.56663a50f86bdc4cd97700b7@danny.cz Signed-off-by: Michael Ellerman <mpe@ellerman.id.au> Link: https://msgid.link/20230511114224.977423-1-mpe@ellerman.id.au
* powerpc/fsl_uli1575: fix kconfig warnings and build errorsRandy Dunlap2023-05-081-0/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Neither FSL_SOC_BOOKE nor PPC_86xx enables CONFIG_PCI by default, so it may be unset in some randconfigs. When that happens, FSL_ULI1575 may be set when it should not be since it is a PCI driver. When it is set, there are 3 kconfig warnings and a slew of build errors WARNING: unmet direct dependencies detected for PCI_QUIRKS Depends on [n]: PCI [=n] Selected by [y]: - FSL_PCI [=y] WARNING: unmet direct dependencies detected for GENERIC_ISA_DMA Depends on [n]: ISA_DMA_API [=n] Selected by [y]: - FSL_ULI1575 [=y] && (FSL_SOC_BOOKE [=n] || PPC_86xx [=y]) WARNING: unmet direct dependencies detected for PPC_INDIRECT_PCI Depends on [n]: PCI [=n] Selected by [y]: - FSL_PCI [=y] and 30+ build errors. Fixes: 22fdf79171e8 ("powerpc/fsl_uli1575: Allow to disable FSL_ULI1575 support") Signed-off-by: Randy Dunlap <rdunlap@infradead.org> Reviewed-by: Pali Rohár <pali@kernel.org> Signed-off-by: Michael Ellerman <mpe@ellerman.id.au> Link: https://msgid.link/20230429043519.19807-1-rdunlap@infradead.org
* powerpc/isa-bridge: Fix ISA mapping when "ranges" is not presentRob Herring2023-05-081-2/+3
| | | | | | | | | | | | | | | | | Commit e4ab08be5b49 ("powerpc/isa-bridge: Remove open coded "ranges" parsing") broke PASemi Nemo board booting. The issue is the ISA I/O range was not getting mapped as the logic to handle no "ranges" was inverted. If phb_io_base_phys is non-zero, then the ISA range defaults to the first 64K of the PCI I/O space. phb_io_base_phys should only be 0 when looking for a non-PCI ISA region. Fixes: e4ab08be5b49 ("powerpc/isa-bridge: Remove open coded "ranges" parsing") Reported-by: Christian Zigotzky <chzigotzky@xenosoft.de> Link: https://lore.kernel.org/all/301595ad-0edf-2113-b55f-f5b8051ed24c@xenosoft.de/ Signed-off-by: Rob Herring <robh@kernel.org> Tested-by: Christian Zigotzky <chzigotzky@xenosoft.de> Signed-off-by: Michael Ellerman <mpe@ellerman.id.au> Link: https://msgid.link/20230505171816.3175865-1-robh@kernel.org
* Merge tag 'locking-core-2023-05-05' of ↵Linus Torvalds2023-05-052-2/+13
|\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip Pull locking updates from Ingo Molnar: - Introduce local{,64}_try_cmpxchg() - a slightly more optimal primitive, which will be used in perf events ring-buffer code - Simplify/modify rwsems on PREEMPT_RT, to address writer starvation - Misc cleanups/fixes * tag 'locking-core-2023-05-05' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: locking/atomic: Correct (cmp)xchg() instrumentation locking/x86: Define arch_try_cmpxchg_local() locking/arch: Wire up local_try_cmpxchg() locking/generic: Wire up local{,64}_try_cmpxchg() locking/atomic: Add generic try_cmpxchg{,64}_local() support locking/rwbase: Mitigate indefinite writer starvation locking/arch: Rename all internal __xchg() names to __arch_xchg()
| * locking/arch: Wire up local_try_cmpxchg()Uros Bizjak2023-04-291-0/+11
| | | | | | | | | | | | | | | | | | | | | | | | | | Implement target specific support for local_try_cmpxchg() and local_cmpxchg() using typed C wrappers that call their _local counterpart and provide additional checking of their input arguments. Signed-off-by: Uros Bizjak <ubizjak@gmail.com> Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org> Signed-off-by: Ingo Molnar <mingo@kernel.org> Link: https://lore.kernel.org/r/20230405141710.3551-4-ubizjak@gmail.com Cc: Linus Torvalds <torvalds@linux-foundation.org>
| * locking/arch: Rename all internal __xchg() names to __arch_xchg()Andrzej Hajda2023-04-291-2/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Decrease the probability of this internal facility to be used by driver code. Signed-off-by: Andrzej Hajda <andrzej.hajda@intel.com> Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org> Signed-off-by: Ingo Molnar <mingo@kernel.org> Reviewed-by: Arnd Bergmann <arnd@arndb.de> Reviewed-by: Andi Shyti <andi.shyti@linux.intel.com> Acked-by: Geert Uytterhoeven <geert@linux-m68k.org> [m68k] Acked-by: Palmer Dabbelt <palmer@rivosinc.com> [riscv] Link: https://lore.kernel.org/r/20230118154450.73842-1-andrzej.hajda@intel.com Cc: Linus Torvalds <torvalds@linux-foundation.org>
* | Merge tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvmLinus Torvalds2023-05-016-24/+23
|\ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Pull kvm updates from Paolo Bonzini: "s390: - More phys_to_virt conversions - Improvement of AP management for VSIE (nested virtualization) ARM64: - Numerous fixes for the pathological lock inversion issue that plagued KVM/arm64 since... forever. - New framework allowing SMCCC-compliant hypercalls to be forwarded to userspace, hopefully paving the way for some more features being moved to VMMs rather than be implemented in the kernel. - Large rework of the timer code to allow a VM-wide offset to be applied to both virtual and physical counters as well as a per-timer, per-vcpu offset that complements the global one. This last part allows the NV timer code to be implemented on top. - A small set of fixes to make sure that we don't change anything affecting the EL1&0 translation regime just after having having taken an exception to EL2 until we have executed a DSB. This ensures that speculative walks started in EL1&0 have completed. - The usual selftest fixes and improvements. x86: - Optimize CR0.WP toggling by avoiding an MMU reload when TDP is enabled, and by giving the guest control of CR0.WP when EPT is enabled on VMX (VMX-only because SVM doesn't support per-bit controls) - Add CR0/CR4 helpers to query single bits, and clean up related code where KVM was interpreting kvm_read_cr4_bits()'s "unsigned long" return as a bool - Move AMD_PSFD to cpufeatures.h and purge KVM's definition - Avoid unnecessary writes+flushes when the guest is only adding new PTEs - Overhaul .sync_page() and .invlpg() to utilize .sync_page()'s optimizations when emulating invalidations - Clean up the range-based flushing APIs - Revamp the TDP MMU's reaping of Accessed/Dirty bits to clear a single A/D bit using a LOCK AND instead of XCHG, and skip all of the "handle changed SPTE" overhead associated with writing the entire entry - Track the number of "tail" entries in a pte_list_desc to avoid having to walk (potentially) all descriptors during insertion and deletion, which gets quite expensive if the guest is spamming fork() - Disallow virtualizing legacy LBRs if architectural LBRs are available, the two are mutually exclusive in hardware - Disallow writes to immutable feature MSRs (notably PERF_CAPABILITIES) after KVM_RUN, similar to CPUID features - Overhaul the vmx_pmu_caps selftest to better validate PERF_CAPABILITIES - Apply PMU filters to emulated events and add test coverage to the pmu_event_filter selftest - AMD SVM: - Add support for virtual NMIs - Fixes for edge cases related to virtual interrupts - Intel AMX: - Don't advertise XTILE_CFG in KVM_GET_SUPPORTED_CPUID if XTILE_DATA is not being reported due to userspace not opting in via prctl() - Fix a bug in emulation of ENCLS in compatibility mode - Allow emulation of NOP and PAUSE for L2 - AMX selftests improvements - Misc cleanups MIPS: - Constify MIPS's internal callbacks (a leftover from the hardware enabling rework that landed in 6.3) Generic: - Drop unnecessary casts from "void *" throughout kvm_main.c - Tweak the layout of "struct kvm_mmu_memory_cache" to shrink the struct size by 8 bytes on 64-bit kernels by utilizing a padding hole Documentation: - Fix goof introduced by the conversion to rST" * tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm: (211 commits) KVM: s390: pci: fix virtual-physical confusion on module unload/load KVM: s390: vsie: clarifications on setting the APCB KVM: s390: interrupt: fix virtual-physical confusion for next alert GISA KVM: arm64: Have kvm_psci_vcpu_on() use WRITE_ONCE() to update mp_state KVM: arm64: Acquire mp_state_lock in kvm_arch_vcpu_ioctl_vcpu_init() KVM: selftests: Test the PMU event "Instructions retired" KVM: selftests: Copy full counter values from guest in PMU event filter test KVM: selftests: Use error codes to signal errors in PMU event filter test KVM: selftests: Print detailed info in PMU event filter asserts KVM: selftests: Add helpers for PMC asserts in PMU event filter test KVM: selftests: Add a common helper for the PMU event filter guest code KVM: selftests: Fix spelling mistake "perrmited" -> "permitted" KVM: arm64: vhe: Drop extra isb() on guest exit KVM: arm64: vhe: Synchronise with page table walker on MMU update KVM: arm64: pkvm: Document the side effects of kvm_flush_dcache_to_poc() KVM: arm64: nvhe: Synchronise with page table walker on TLBI KVM: arm64: Handle 32bit CNTPCTSS traps KVM: arm64: nvhe: Synchronise with page table walker on vcpu run KVM: arm64: vgic: Don't acquire its_lock before config_lock KVM: selftests: Add test to verify KVM's supported XCR0 ...
| * \ Merge tag 'kvmarm-6.4' of ↵Paolo Bonzini2023-04-265-10/+28
| |\ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/kvmarm/kvmarm into HEAD KVM/arm64 updates for 6.4 - Numerous fixes for the pathological lock inversion issue that plagued KVM/arm64 since... forever. - New framework allowing SMCCC-compliant hypercalls to be forwarded to userspace, hopefully paving the way for some more features being moved to VMMs rather than be implemented in the kernel. - Large rework of the timer code to allow a VM-wide offset to be applied to both virtual and physical counters as well as a per-timer, per-vcpu offset that complements the global one. This last part allows the NV timer code to be implemented on top. - A small set of fixes to make sure that we don't change anything affecting the EL1&0 translation regime just after having having taken an exception to EL2 until we have executed a DSB. This ensures that speculative walks started in EL1&0 have completed. - The usual selftest fixes and improvements.
| * | | KVM: Change return type of kvm_arch_vm_ioctl() to "int"Thomas Huth2023-03-161-3/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | All kvm_arch_vm_ioctl() implementations now only deal with "int" types as return values, so we can change the return type of these functions to use "int" instead of "long". Signed-off-by: Thomas Huth <thuth@redhat.com> Acked-by: Anup Patel <anup@brainfault.org> Message-Id: <20230208140105.655814-7-thuth@redhat.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
| * | | KVM: PPC: Standardize on "int" return types in the powerpc KVM codeThomas Huth2023-03-165-21/+21
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Most functions that are related to kvm_arch_vm_ioctl() already use "int" as return type to pass error values back to the caller. Some outlier functions use "long" instead for no good reason (they do not really require long values here). Let's standardize on "int" here to avoid casting the values back and forth between the two types. Reviewed-by: Nicholas Piggin <npiggin@gmail.com> Signed-off-by: Thomas Huth <thuth@redhat.com> Message-Id: <20230208140105.655814-2-thuth@redhat.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
* | | | Merge tag 'dma-mapping-6.4-2023-04-28' of ↵Linus Torvalds2023-04-291-1/+1
|\ \ \ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.infradead.org/users/hch/dma-mapping Pull dma-mapping updates from Christoph Hellwig: - fix a PageHighMem check in dma-coherent initialization (Doug Berger) - clean up the coherency defaul initialiation (Jiaxun Yang) - add cacheline to user/kernel dma-debug space dump messages (Desnes Nunes, Geert Uytterhoeve) - swiotlb statistics improvements (Michael Kelley) - misc cleanups (Petr Tesarik) * tag 'dma-mapping-6.4-2023-04-28' of git://git.infradead.org/users/hch/dma-mapping: swiotlb: Omit total_used and used_hiwater if !CONFIG_DEBUG_FS swiotlb: track and report io_tlb_used high water marks in debugfs swiotlb: fix debugfs reporting of reserved memory pools swiotlb: relocate PageHighMem test away from rmem_swiotlb_setup of: address: always use dma_default_coherent for default coherency dma-mapping: provide CONFIG_ARCH_DMA_DEFAULT_COHERENT dma-mapping: provide a fallback dma_default_coherent dma-debug: Use %pa to format phys_addr_t dma-debug: add cacheline to user/kernel space dump messages dma-debug: small dma_debug_entry's comment and variable name updates dma-direct: cleanup parameters to dma_direct_optimal_gfp_mask
| * | | | of: address: always use dma_default_coherent for default coherencyJiaxun Yang2023-04-071-1/+1
| |/ / / | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | As for now all arches have dma_default_coherent reflecting default DMA coherency for of devices, so there is no need to have a standalone config option. Signed-off-by: Jiaxun Yang <jiaxun.yang@flygoat.com> Reviewed-by: Rob Herring <robh@kernel.org> Acked-by: Michael Ellerman <mpe@ellerman.id.au> (powerpc) Signed-off-by: Christoph Hellwig <hch@lst.de>
* | | | Merge tag 'riscv-for-linus-6.4-mw1' of ↵Linus Torvalds2023-04-281-16/+2
|\ \ \ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/riscv/linux Pull RISC-V updates from Palmer Dabbelt: - Support for runtime detection of the Svnapot extension - Support for Zicboz when clearing pages - We've moved to GENERIC_ENTRY - Support for !MMU on rv32 systems - The linear region is now mapped via huge pages - Support for building relocatable kernels - Support for the hwprobe interface - Various fixes and cleanups throughout the tree * tag 'riscv-for-linus-6.4-mw1' of git://git.kernel.org/pub/scm/linux/kernel/git/riscv/linux: (57 commits) RISC-V: hwprobe: Explicity check for -1 in vdso init RISC-V: hwprobe: There can only be one first riscv: Allow to downgrade paging mode from the command line dt-bindings: riscv: add sv57 mmu-type RISC-V: hwprobe: Remove __init on probe_vendor_features() riscv: Use --emit-relocs in order to move .rela.dyn in init riscv: Check relocations at compile time powerpc: Move script to check relocations at compile time in scripts/ riscv: Introduce CONFIG_RELOCATABLE riscv: Move .rela.dyn outside of init to avoid empty relocations riscv: Prepare EFI header for relocatable kernels riscv: Unconditionnally select KASAN_VMALLOC if KASAN riscv: Fix ptdump when KASAN is enabled riscv: Fix EFI stub usage of KASAN instrumented strcmp function riscv: Move DTB_EARLY_BASE_VA to the kernel address space riscv: Rework kasan population functions riscv: Split early and final KASAN population functions riscv: Use PUD/P4D/PGD pages for the linear mapping riscv: Move the linear mapping creation in its own function riscv: Get rid of riscv_pfn_base variable ...
| * | | | powerpc: Move script to check relocations at compile time in scripts/Alexandre Ghiti2023-04-191-16/+2
| | |_|/ | |/| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Relocating kernel at runtime is done very early in the boot process, so it is not convenient to check for relocations there and react in case a relocation was not expected. Powerpc architecture has a script that allows to check at compile time for such unexpected relocations: extract the common logic to scripts/ so that other architectures can take advantage of it. Signed-off-by: Alexandre Ghiti <alex@ghiti.fr> Reviewed-by: Anup Patel <anup@brainfault.org> Acked-by: Michael Ellerman <mpe@ellerman.id.au> (powerpc) Link: https://lore.kernel.org/r/20230329045329.64565-5-alexghiti@rivosinc.com Signed-off-by: Palmer Dabbelt <palmer@rivosinc.com>
* | | | Merge tag 'powerpc-6.4-1' of ↵Linus Torvalds2023-04-28248-9228/+2305
|\ \ \ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux Pull powerpc updates from Michael Ellerman: - Add support for building the kernel using PC-relative addressing on Power10. - Allow HV KVM guests on Power10 to use prefixed instructions. - Unify support for the P2020 CPU (85xx) into a single machine description. - Always build the 64-bit kernel with 128-bit long double. - Drop support for several obsolete 2000's era development boards as identified by Paul Gortmaker. - A series fixing VFIO on Power since some generic changes. - Various other small features and fixes. Thanks to Alexey Kardashevskiy, Andrew Donnellan, Benjamin Gray, Bo Liu, Christophe Leroy, Dan Carpenter, David Binderman, Ira Weiny, Joel Stanley, Kajol Jain, Kautuk Consul, Liang He, Luis Chamberlain, Masahiro Yamada, Michael Neuling, Nathan Chancellor, Nathan Lynch, Nicholas Miehlbradt, Nicholas Piggin, Nick Desaulniers, Nysal Jan K.A, Pali Rohár, Paul Gortmaker, Paul Mackerras, Petr Vaněk, Randy Dunlap, Rob Herring, Sachin Sant, Sean Christopherson, Segher Boessenkool, and Timothy Pearson. * tag 'powerpc-6.4-1' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux: (156 commits) powerpc/64s: Disable pcrel code model on Clang powerpc: Fix merge conflict between pcrel and copy_thread changes powerpc/configs/powernv: Add IGB=y powerpc/configs/64s: Drop JFS Filesystem powerpc/configs/64s: Use EXT4 to mount EXT2 filesystems powerpc/configs: Make pseries_defconfig an alias for ppc64le_guest powerpc/configs: Make pseries_le an alias for ppc64le_guest powerpc/configs: Incorporate generic kvm_guest.config into guest configs powerpc/configs: Add IBMVETH=y and IBMVNIC=y to guest configs powerpc/configs/64s: Enable Device Mapper options powerpc/configs/64s: Enable PSTORE powerpc/configs/64s: Enable VLAN support powerpc/configs/64s: Enable BLK_DEV_NVME powerpc/configs/64s: Drop REISERFS powerpc/configs/64s: Use SHA512 for module signatures powerpc/configs/64s: Enable IO_STRICT_DEVMEM powerpc/configs/64s: Enable SCHEDSTATS powerpc/configs/64s: Enable DEBUG_VM & other options powerpc/configs/64s: Enable EMULATED_STATS powerpc/configs/64s: Enable KUNIT and most tests ...
| * | | | powerpc/64s: Disable pcrel code model on ClangNicholas Piggin2023-04-261-1/+6
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Clang has a bug that casues the pcrel code model not to be used when any of -msoft-float, -mno-altivec, or -mno-vsx are set. Leaving these off causes FP/vector instructions to be generated, causing crashes. So disable pcrel for clang for now. Fixes: 7e3a68be42e10 ("powerpc/64: vmlinux support building with PCREL addresing") Signed-off-by: Nicholas Piggin <npiggin@gmail.com> Signed-off-by: Michael Ellerman <mpe@ellerman.id.au> Link: https://msgid.link/20230426055848.402993-3-npiggin@gmail.com
| * | | | powerpc: Fix merge conflict between pcrel and copy_thread changesNicholas Piggin2023-04-261-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Fix a conflict between commit 4e991e3c16a35 ("powerpc: add CFUNC assembly label annotation") and commit b504b6aade040 ("powerpc: differentiate kthread from user kernel thread start"). Fixes: 4e991e3c16a35 ("powerpc: add CFUNC assembly label annotation") Fixes: b504b6aade040 ("powerpc: differentiate kthread from user kernel thread start") Signed-off-by: Nicholas Piggin <npiggin@gmail.com> Signed-off-by: Michael Ellerman <mpe@ellerman.id.au> Link: https://msgid.link/20230426055848.402993-2-npiggin@gmail.com
| * | | | powerpc/configs/powernv: Add IGB=yMichael Ellerman2023-04-211-0/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Some powernv machines use IGB for networking, so build the driver in to enable net booting such machines. Suggested-by: Nicholas Piggin <npiggin@gmail.com> Signed-off-by: Michael Ellerman <mpe@ellerman.id.au> Link: https://msgid.link/20230420052149.1328094-1-mpe@ellerman.id.au
| * | | | powerpc/configs/64s: Drop JFS FilesystemMichael Ellerman2023-04-211-3/+0
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Unlikely that anyone is still regularly using JFS, drop it from the defconfig. Suggested-by: Nicholas Piggin <npiggin@gmail.com> Signed-off-by: Michael Ellerman <mpe@ellerman.id.au> Link: https://msgid.link/20230420051609.1324201-2-mpe@ellerman.id.au
| * | | | powerpc/configs/64s: Use EXT4 to mount EXT2 filesystemsMichael Ellerman2023-04-211-4/+0
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The ext4 code will mount ext2 filesystems, no need to build in both. Suggested-by: Nicholas Piggin <npiggin@gmail.com> Signed-off-by: Michael Ellerman <mpe@ellerman.id.au> Link: https://msgid.link/20230420051609.1324201-1-mpe@ellerman.id.au
| * | | | powerpc/configs: Make pseries_defconfig an alias for ppc64le_guestMichael Ellerman2023-04-212-323/+3
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Rather than trying to keep multiple configs up to date, make pseries_defconfig an alias for ppc64le_guest_defconfig. NOTE, pseries_defconfig was a big endian config, but this commit switches it to little endian. Almost all distros are ppc64le these days, so little endian is much more likely to be what a user wants when they build for "pseries". For an actual big endian guest, use ppc64_guest_defconfig. Signed-off-by: Michael Ellerman <mpe@ellerman.id.au> Link: https://msgid.link/20230414132415.821564-32-mpe@ellerman.id.au
| * | | | powerpc/configs: Make pseries_le an alias for ppc64le_guestMichael Ellerman2023-04-211-4/+3
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Rather than trying to keep multiple configs up to date, make pseries_le_defconfig an alias for ppc64le_guest_defconfig. ppc64le_guest_defconfig should work in all cases that pseries_le_defconfig currently does, but if not we can update it. Move pseries_le_defconfig down in the Makefile, so it appears after ppc64le_guest_defconfig in the help output. Signed-off-by: Michael Ellerman <mpe@ellerman.id.au> Link: https://msgid.link/20230414132415.821564-31-mpe@ellerman.id.au
| * | | | powerpc/configs: Incorporate generic kvm_guest.config into guest configsMichael Ellerman2023-04-212-2/+3
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Incorporate the generic kvm_guest.config into the powerpc guest configs, ppc64[le]_guest_defconfig. This brings in some useful options, in particular 9P support, and also means future additions to the generic file will be automatically picked up by the powerpc configs. Signed-off-by: Michael Ellerman <mpe@ellerman.id.au> Link: https://msgid.link/20230414132415.821564-30-mpe@ellerman.id.au
| * | | | powerpc/configs: Add IBMVETH=y and IBMVNIC=y to guest configsMichael Ellerman2023-04-211-0/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | These drivers are sometimes required to have functional networking in a guest, so build them in when building ppc64[le]_guest_defconfig. Signed-off-by: Michael Ellerman <mpe@ellerman.id.au> Link: https://msgid.link/20230414132415.821564-29-mpe@ellerman.id.au
| * | | | powerpc/configs/64s: Enable Device Mapper optionsMichael Ellerman2023-04-211-2/+14
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Add device mapper options for test coverage and in case folks are booting systems that require them. Signed-off-by: Michael Ellerman <mpe@ellerman.id.au> Link: https://msgid.link/20230414132415.821564-28-mpe@ellerman.id.au
| * | | | powerpc/configs/64s: Enable PSTOREMichael Ellerman2023-04-211-0/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Like pseries & powernv_defconfig, enable PSTORE. Signed-off-by: Michael Ellerman <mpe@ellerman.id.au> Link: https://msgid.link/20230414132415.821564-27-mpe@ellerman.id.au
| * | | | powerpc/configs/64s: Enable VLAN supportMichael Ellerman2023-04-211-0/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Most other configs, and distros enable it. Signed-off-by: Michael Ellerman <mpe@ellerman.id.au> Link: https://msgid.link/20230414132415.821564-26-mpe@ellerman.id.au
| * | | | powerpc/configs/64s: Enable BLK_DEV_NVMEMichael Ellerman2023-04-211-0/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Copy powernv_defconfig and enable BLK_DEV_NVME. Signed-off-by: Michael Ellerman <mpe@ellerman.id.au> Link: https://msgid.link/20230414132415.821564-25-mpe@ellerman.id.au
| * | | | powerpc/configs/64s: Drop REISERFSMichael Ellerman2023-04-211-4/+0
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | No reason to use this anymore. Signed-off-by: Michael Ellerman <mpe@ellerman.id.au> Link: https://msgid.link/20230414132415.821564-24-mpe@ellerman.id.au
| * | | | powerpc/configs/64s: Use SHA512 for module signaturesMichael Ellerman2023-04-211-0/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Modern distros use SHA512 for module signing. Signed-off-by: Michael Ellerman <mpe@ellerman.id.au> Link: https://msgid.link/20230414132415.821564-23-mpe@ellerman.id.au
| * | | | powerpc/configs/64s: Enable IO_STRICT_DEVMEMMichael Ellerman2023-04-211-0/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Distros enable it. Signed-off-by: Michael Ellerman <mpe@ellerman.id.au> Link: https://msgid.link/20230414132415.821564-22-mpe@ellerman.id.au
| * | | | powerpc/configs/64s: Enable SCHEDSTATSMichael Ellerman2023-04-211-0/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Distros enable it. Signed-off-by: Michael Ellerman <mpe@ellerman.id.au> Link: https://msgid.link/20230414132415.821564-21-mpe@ellerman.id.au
| * | | | powerpc/configs/64s: Enable DEBUG_VM & other optionsMichael Ellerman2023-04-211-0/+6
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Fedora enables DEBUG_VM, which has led to occasions where a VM_BUG_ON() is not caught by upstream testing, but rather is first found in Fedora, which is not how it's meant to be. PAGE_OWNER & PAGE_POISONING both need to be enabled on the kernel command line, so should not add much overhead in normal operation. Signed-off-by: Michael Ellerman <mpe@ellerman.id.au> Link: https://msgid.link/20230414132415.821564-20-mpe@ellerman.id.au
| * | | | powerpc/configs/64s: Enable EMULATED_STATSMichael Ellerman2023-04-211-0/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This is enabled in some of the other powerpc configs, and can be useful for debugging, so enable it in ppc64[le]_defconfig. Signed-off-by: Michael Ellerman <mpe@ellerman.id.au> Link: https://msgid.link/20230414132415.821564-19-mpe@ellerman.id.au
| * | | | powerpc/configs/64s: Enable KUNIT and most testsMichael Ellerman2023-04-211-0/+43
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | All built as modules, so the tests only happen when the modules are loaded, not affecting normal boot time. Signed-off-by: Michael Ellerman <mpe@ellerman.id.au> Link: https://msgid.link/20230414132415.821564-18-mpe@ellerman.id.au
| * | | | powerpc/configs/64s: Enable SELINUXMichael Ellerman2023-04-211-0/+3
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Fedora, CentOS, RHEL & SUSE all enable it. Signed-off-by: Michael Ellerman <mpe@ellerman.id.au> Link: https://msgid.link/20230414132415.821564-17-mpe@ellerman.id.au
| * | | | powerpc/configs/64s: Enable YAMA, LANDLOCK & BPF LSMsMichael Ellerman2023-04-211-0/+3
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Multiple distros enable these. Signed-off-by: Michael Ellerman <mpe@ellerman.id.au> Link: https://msgid.link/20230414132415.821564-16-mpe@ellerman.id.au
| * | | | powerpc/configs/64s: Enable SLAB hardening optionsMichael Ellerman2023-04-211-0/+4
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Fedora & CentOS enable these. Signed-off-by: Michael Ellerman <mpe@ellerman.id.au> Link: https://msgid.link/20230414132415.821564-15-mpe@ellerman.id.au
| * | | | powerpc/configs/64s: Enable ZSWAP & ZRAMMichael Ellerman2023-04-211-0/+4
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Most distros enable these. In particular Fedore uses zram in the default install. Signed-off-by: Michael Ellerman <mpe@ellerman.id.au> Link: https://msgid.link/20230414132415.821564-14-mpe@ellerman.id.au
| * | | | powerpc/configs/64s: Enable CHECKPOINT_RESTOREMichael Ellerman2023-04-211-0/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Most distros enable this. Signed-off-by: Michael Ellerman <mpe@ellerman.id.au> Link: https://msgid.link/20230414132415.821564-13-mpe@ellerman.id.au
| * | | | powerpc/configs/64s: Enable common CGROUP & related optionsMichael Ellerman2023-04-211-2/+7
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Distros enable these options. Signed-off-by: Michael Ellerman <mpe@ellerman.id.au> Link: https://msgid.link/20230414132415.821564-12-mpe@ellerman.id.au
| * | | | powerpc/configs/64s: Enable NO_HZ_FULLMichael Ellerman2023-04-211-2/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | At least Fedora & SUSE enable it. VIRT_CPU_ACCOUNTING_GEN is selected so no longer needs to be in the defconfig. Signed-off-by: Michael Ellerman <mpe@ellerman.id.au> Link: https://msgid.link/20230414132415.821564-11-mpe@ellerman.id.au
| * | | | powerpc/configs/64s: Enable common accounting optionsMichael Ellerman2023-04-211-0/+5
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | These options are enabled by most distros. Signed-off-by: Michael Ellerman <mpe@ellerman.id.au> Link: https://msgid.link/20230414132415.821564-10-mpe@ellerman.id.au
| * | | | powerpc/configs/64s: Enable AUDITMichael Ellerman2023-04-211-0/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Essentially all distros enable it. Signed-off-by: Michael Ellerman <mpe@ellerman.id.au> Link: https://msgid.link/20230414132415.821564-9-mpe@ellerman.id.au
generated by cgit v1.2.3 (git 2.25.1) at 2024-07-14 11:33:31 +0000