- Use common KVM implementation of MMU memory caches
- SBI v0.2 support for Guest
- Initial KVM selftests support
- Fix to avoid spurious virtual interrupts after clearing hideleg CSR
- Update email address for Anup and Atish
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Merge tag 'kvm-riscv-5.17-1' of https://github.com/kvm-riscv/linux into HEAD
KVM/riscv changes for 5.17, take #1
- Use common KVM implementation of MMU memory caches
- SBI v0.2 support for Guest
- Initial KVM selftests support
- Fix to avoid spurious virtual interrupts after clearing hideleg CSR
- Update email address for Anup and Atish
- Simplification of the 'vcpu first run' by integrating it into
KVM's 'pid change' flow
- Refactoring of the FP and SVE state tracking, also leading to
a simpler state and less shared data between EL1 and EL2 in
the nVHE case
- Tidy up the header file usage for the nvhe hyp object
- New HYP unsharing mechanism, finally allowing pages to be
unmapped from the Stage-1 EL2 page-tables
- Various pKVM cleanups around refcounting and sharing
- A couple of vgic fixes for bugs that would trigger once
the vcpu xarray rework is merged, but not sooner
- Add minimal support for ARMv8.7's PMU extension
- Rework kvm_pgtable initialisation ahead of the NV work
- New selftest for IRQ injection
- Teach selftests about the lack of default IPA space and
page sizes
- Expand sysreg selftest to deal with Pointer Authentication
- The usual bunch of cleanups and doc update
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Merge tag 'kvmarm-5.17' of git://git.kernel.org/pub/scm/linux/kernel/git/kvmarm/kvmarm into HEAD
KVM/arm64 updates for Linux 5.16
- Simplification of the 'vcpu first run' by integrating it into
KVM's 'pid change' flow
- Refactoring of the FP and SVE state tracking, also leading to
a simpler state and less shared data between EL1 and EL2 in
the nVHE case
- Tidy up the header file usage for the nvhe hyp object
- New HYP unsharing mechanism, finally allowing pages to be
unmapped from the Stage-1 EL2 page-tables
- Various pKVM cleanups around refcounting and sharing
- A couple of vgic fixes for bugs that would trigger once
the vcpu xarray rework is merged, but not sooner
- Add minimal support for ARMv8.7's PMU extension
- Rework kvm_pgtable initialisation ahead of the NV work
- New selftest for IRQ injection
- Teach selftests about the lack of default IPA space and
page sizes
- Expand sysreg selftest to deal with Pointer Authentication
- The usual bunch of cleanups and doc update
We add initial support for RISC-V 64-bit in KVM selftests using
which we can cross-compile and run arch independent tests such as:
demand_paging_test
dirty_log_test
kvm_create_max_vcpus,
kvm_page_table_test
set_memory_region_test
kvm_binary_stats_test
All VM guest modes defined in kvm_util.h require at least 48-bit
guest virtual address so to use KVM RISC-V selftests hardware
need to support at least Sv48 MMU for guest (i.e. VS-mode).
Signed-off-by: Anup Patel <anup.patel@wdc.com>
Reviewed-and-tested-by: Atish Patra <atishp@rivosinc.com>
We add EXTRA_CFLAGS to the common CFLAGS of top-level Makefile which will
allow users to pass additional compile-time flags such as "-static".
Signed-off-by: Anup Patel <anup.patel@wdc.com>
Reviewed-and-tested-by: Atish Patra <atishp@rivosinc.com>
Reviewed-and-tested-by: Sean Christopherson <seanjc@google.com>
* kvm-arm64/selftest/irq-injection:
: .
: New tests from Ricardo Koller:
: "This series adds a new test, aarch64/vgic-irq, that validates the injection of
: different types of IRQs from userspace using various methods and configurations"
: .
KVM: selftests: aarch64: Add test for restoring active IRQs
KVM: selftests: aarch64: Add ISPENDR write tests in vgic_irq
KVM: selftests: aarch64: Add tests for IRQFD in vgic_irq
KVM: selftests: Add IRQ GSI routing library functions
KVM: selftests: aarch64: Add test_inject_fail to vgic_irq
KVM: selftests: aarch64: Add tests for LEVEL_INFO in vgic_irq
KVM: selftests: aarch64: Level-sensitive interrupts tests in vgic_irq
KVM: selftests: aarch64: Add preemption tests in vgic_irq
KVM: selftests: aarch64: Cmdline arg to set EOI mode in vgic_irq
KVM: selftests: aarch64: Cmdline arg to set number of IRQs in vgic_irq test
KVM: selftests: aarch64: Abstract the injection functions in vgic_irq
KVM: selftests: aarch64: Add vgic_irq to test userspace IRQ injection
KVM: selftests: aarch64: Add vGIC library functions to deal with vIRQ state
KVM: selftests: Add kvm_irq_line library function
KVM: selftests: aarch64: Add GICv3 register accessor library functions
KVM: selftests: aarch64: Add function for accessing GICv3 dist and redist registers
KVM: selftests: aarch64: Move gic_v3.h to shared headers
Signed-off-by: Marc Zyngier <maz@kernel.org>
The get-reg-list test ignores the Pointer Authentication features,
which is a shame now that we have relatively common HW with this feature.
Define two new configurations (with and without PMU) that exercise the
KVM capabilities.
Signed-off-by: Marc Zyngier <maz@kernel.org>
Reviewed-by: Andrew Jones <drjones@redhat.com>
Link: https://lore.kernel.org/r/20211228121414.1013250-1-maz@kernel.org
Add a test that restores multiple IRQs in active state, it does it by
writing into ISACTIVER from the guest and using KVM ioctls. This test
tries to emulate what would happen during a live migration: restore
active IRQs.
Signed-off-by: Ricardo Koller <ricarkol@google.com>
Acked-by: Andrew Jones <drjones@redhat.com>
Signed-off-by: Marc Zyngier <maz@kernel.org>
Link: https://lore.kernel.org/r/20211109023906.1091208-18-ricarkol@google.com
Add injection tests that use writing into the ISPENDR register (to mark
IRQs as pending). This is typically used by migration code.
Signed-off-by: Ricardo Koller <ricarkol@google.com>
Acked-by: Andrew Jones <drjones@redhat.com>
Signed-off-by: Marc Zyngier <maz@kernel.org>
Link: https://lore.kernel.org/r/20211109023906.1091208-17-ricarkol@google.com
Add an architecture independent wrapper function for creating and
writing IRQ GSI routing tables. Also add a function to add irqchip
entries.
Signed-off-by: Ricardo Koller <ricarkol@google.com>
Acked-by: Andrew Jones <drjones@redhat.com>
Signed-off-by: Marc Zyngier <maz@kernel.org>
Link: https://lore.kernel.org/r/20211109023906.1091208-15-ricarkol@google.com
Add tests for failed injections to vgic_irq. This tests that KVM can
handle bogus IRQ numbers.
Signed-off-by: Ricardo Koller <ricarkol@google.com>
Acked-by: Andrew Jones <drjones@redhat.com>
Signed-off-by: Marc Zyngier <maz@kernel.org>
Link: https://lore.kernel.org/r/20211109023906.1091208-14-ricarkol@google.com
Add injection tests for the LEVEL_INFO ioctl (level-sensitive specific)
into vgic_irq.
Signed-off-by: Ricardo Koller <ricarkol@google.com>
Acked-by: Andrew Jones <drjones@redhat.com>
Signed-off-by: Marc Zyngier <maz@kernel.org>
Link: https://lore.kernel.org/r/20211109023906.1091208-13-ricarkol@google.com
Add a cmdline arg for using level-sensitive interrupts (vs the default
edge-triggered). Then move the handler into a generic handler function
that takes the type of interrupt (level vs. edge) as an arg. When
handling line-sensitive interrupts it sets the line to low after
acknowledging the IRQ.
Signed-off-by: Ricardo Koller <ricarkol@google.com>
Acked-by: Andrew Jones <drjones@redhat.com>
Signed-off-by: Marc Zyngier <maz@kernel.org>
Link: https://lore.kernel.org/r/20211109023906.1091208-12-ricarkol@google.com
Add tests for IRQ preemption (having more than one activated IRQ at the
same time). This test injects multiple concurrent IRQs and handles them
without handling the actual exceptions. This is done by masking
interrupts for the whole test.
Signed-off-by: Ricardo Koller <ricarkol@google.com>
Acked-by: Andrew Jones <drjones@redhat.com>
Signed-off-by: Marc Zyngier <maz@kernel.org>
Link: https://lore.kernel.org/r/20211109023906.1091208-11-ricarkol@google.com
Add a new cmdline arg to set the EOI mode for all vgic_irq tests. This
specifies whether a write to EOIR will deactivate IRQs or not.
Signed-off-by: Ricardo Koller <ricarkol@google.com>
Acked-by: Andrew Jones <drjones@redhat.com>
Signed-off-by: Marc Zyngier <maz@kernel.org>
Link: https://lore.kernel.org/r/20211109023906.1091208-10-ricarkol@google.com
Add the ability to specify the number of vIRQs exposed by KVM (arg
defaults to 64). Then extend the KVM_IRQ_LINE test by injecting all
available SPIs at once (specified by the nr-irqs arg). As a bonus,
inject all SGIs at once as well.
Signed-off-by: Ricardo Koller <ricarkol@google.com>
Acked-by: Andrew Jones <drjones@redhat.com>
Signed-off-by: Marc Zyngier <maz@kernel.org>
Link: https://lore.kernel.org/r/20211109023906.1091208-9-ricarkol@google.com
Build an abstraction around the injection functions, so the preparation
and checking around the actual injection can be shared between tests.
All functions are stored as pointers in arrays of kvm_inject_desc's
which include the pointer and what kind of interrupts they can inject.
Signed-off-by: Ricardo Koller <ricarkol@google.com>
Acked-by: Andrew Jones <drjones@redhat.com>
Signed-off-by: Marc Zyngier <maz@kernel.org>
Link: https://lore.kernel.org/r/20211109023906.1091208-8-ricarkol@google.com
Add a new KVM selftest, vgic_irq, for testing userspace IRQ injection. This
particular test injects an SPI using KVM_IRQ_LINE on GICv3 and verifies
that the IRQ is handled in the guest. The next commits will add more
types of IRQs and different modes.
Signed-off-by: Ricardo Koller <ricarkol@google.com>
Acked-by: Andrew Jones <drjones@redhat.com>
Signed-off-by: Marc Zyngier <maz@kernel.org>
Link: https://lore.kernel.org/r/20211109023906.1091208-7-ricarkol@google.com
Add a set of library functions for userspace code in selftests to deal
with vIRQ state (i.e., ioctl wrappers).
Signed-off-by: Ricardo Koller <ricarkol@google.com>
Acked-by: Andrew Jones <drjones@redhat.com>
Signed-off-by: Marc Zyngier <maz@kernel.org>
Link: https://lore.kernel.org/r/20211109023906.1091208-6-ricarkol@google.com
Add an architecture independent wrapper function for the KVM_IRQ_LINE
ioctl.
Signed-off-by: Ricardo Koller <ricarkol@google.com>
Acked-by: Andrew Jones <drjones@redhat.com>
Signed-off-by: Marc Zyngier <maz@kernel.org>
Link: https://lore.kernel.org/r/20211109023906.1091208-5-ricarkol@google.com
Add a generic library function for reading and writing GICv3 distributor
and redistributor registers. Then adapt some functions to use it; more
will come and use it in the next commit.
Signed-off-by: Ricardo Koller <ricarkol@google.com>
Acked-by: Andrew Jones <drjones@redhat.com>
Signed-off-by: Marc Zyngier <maz@kernel.org>
Link: https://lore.kernel.org/r/20211109023906.1091208-3-ricarkol@google.com
Move gic_v3.h to the shared headers location. There are some definitions
that will be used in the vgic-irq test.
Signed-off-by: Ricardo Koller <ricarkol@google.com>
Acked-by: Andrew Jones <drjones@redhat.com>
Signed-off-by: Marc Zyngier <maz@kernel.org>
Link: https://lore.kernel.org/r/20211109023906.1091208-2-ricarkol@google.com
The 16kB page size is not a popular choice, due to only a few CPUs
actually implementing support for it. However, it can lead to some
interesting performance improvements given the right uarch choices.
Add support for this page size for various PA/VA combinations.
Signed-off-by: Marc Zyngier <maz@kernel.org>
Reviewed-by: Andrew Jones <drjones@redhat.com>
Link: https://lore.kernel.org/r/20211227124809.1335409-7-maz@kernel.org
Some of the arm64 systems out there have an IPA space that is
positively tiny. Nonetheless, they make great KVM hosts.
Add support for 36bit IPA support with 4kB pages, which makes
some of the fruity machines happy. Whilst we're at it, add support
for 64kB pages as well, though these boxes have no support for it.
Reviewed-by: Andrew Jones <drjones@redhat.com>
Signed-off-by: Marc Zyngier <maz@kernel.org>
Link: https://lore.kernel.org/r/20211227124809.1335409-6-maz@kernel.org
The current way we initialise TCR_EL1 is a bit cumbersome, as
we mix setting TG0 and IPS in the same swtch statement.
Split it into two statements (one for the base granule size, and
another for the IPA size), allowing new modes to be added in a
more elegant way.
No functional change intended.
Signed-off-by: Marc Zyngier <maz@kernel.org>
Reviewed-by: Andrew Jones <drjones@redhat.com>
Link: https://lore.kernel.org/r/20211227124809.1335409-5-maz@kernel.org
Just as arm64 implemenations don't necessary support all IPA
ranges, they don't all support the same page sizes either. Fun.
Create a dummy VM to snapshot the page sizes supported by the
host, and filter the supported modes.
Signed-off-by: Marc Zyngier <maz@kernel.org>
Reviewed-by: Andrew Jones <drjones@redhat.com>
Link: https://lore.kernel.org/r/20211227124809.1335409-4-maz@kernel.org
Contrary to popular belief, there is no such thing as a default
IPA size on arm64. Anything goes, and implementations are the
usual Wild West.
The selftest infrastructure default to 40bit IPA, which obviously
doesn't work for some systems out there.
Turn VM_MODE_DEFAULT from a constant into a variable, and let
guest_modes_append_default() populate it, depending on what
the HW can do. In order to preserve the current behaviour, we
still pick 40bits IPA as the default if it is available, and
the largest supported IPA space otherwise.
Signed-off-by: Marc Zyngier <maz@kernel.org>
Reviewed-by: Andrew Jones <drjones@redhat.com>
Link: https://lore.kernel.org/r/20211227124809.1335409-3-maz@kernel.org
As we are going to add support for a variable default mode on arm64,
let's make sure it is setup first by using a constructor that gets
called before the actual test runs.
Suggested-by: Andrew Jones <drjones@redhat.com>
Signed-off-by: Marc Zyngier <maz@kernel.org>
Reviewed-by: Andrew Jones <drjones@redhat.com>
Link: https://lore.kernel.org/r/20211227124809.1335409-2-maz@kernel.org
Add a selftest to attempt to enter L2 with invalid guests state by
exiting to userspace via I/O from L2, and then using KVM_SET_SREGS to set
invalid guest state (marking TR unusable is arbitrary chosen for its
relative simplicity).
This is a regression test for a bug introduced by commit c8607e4a08
("KVM: x86: nVMX: don't fail nested VM entry on invalid guest state if
!from_vmentry"), which incorrectly set vmx->fail=true when L2 had invalid
guest state and ultimately triggered a WARN due to nested_vmx_vmexit()
seeing vmx->fail==true while attempting to synthesize a nested VM-Exit.
The is also a functional test to verify that KVM sythesizes TRIPLE_FAULT
for L2, which is somewhat arbitrary behavior, instead of emulating L2.
KVM should never emulate L2 due to invalid guest state, as it's
architecturally impossible for L1 to run an L2 guest with invalid state
as nested VM-Enter should always fail, i.e. L1 needs to do the emulation.
Stuffing state via KVM ioctl() is a non-architctural, out-of-band case,
hence the TRIPLE_FAULT being rather arbitrary.
Signed-off-by: Sean Christopherson <seanjc@google.com>
Message-Id: <20211207193006.120997-5-seanjc@google.com>
Reviewed-by: Maxim Levitsky <mlevitsk@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Attempting to compile on a non-x86 architecture fails with
include/kvm_util.h: In function ‘vm_compute_max_gfn’:
include/kvm_util.h:79:21: error: dereferencing pointer to incomplete type ‘struct kvm_vm’
return ((1ULL << vm->pa_bits) >> vm->page_shift) - 1;
^~
This is because the declaration of struct kvm_vm is in
lib/kvm_util_internal.h as an effort to make it private to
the test lib code. We can still provide arch specific functions,
though, by making the generic function symbols weak. Do that to
fix the compile error.
Fixes: c8cc43c1ea ("selftests: KVM: avoid failures due to reserved HyperTransport region")
Cc: stable@vger.kernel.org
Signed-off-by: Andrew Jones <drjones@redhat.com>
Message-Id: <20211214151842.848314-1-drjones@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Host initiated writes to MSR_IA32_PERF_CAPABILITIES should not depend
on guest visible CPUIDs and (incorrect) KVM logic implementing it is
about to change. Also, KVM_SET_CPUID{,2} after KVM_RUN is now forbidden
and causes test to fail.
Reported-by: kernel test robot <oliver.sang@intel.com>
Fixes: feb627e8d6 ("KVM: x86: Forbid KVM_SET_CPUID{,2} after KVM_RUN")
Signed-off-by: Vitaly Kuznetsov <vkuznets@redhat.com>
Message-Id: <20211216165213.338923-2-vkuznets@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Add an x86 selftest to verify that KVM doesn't WARN or otherwise explode
if userspace modifies RCX during a userspace exit to handle string I/O.
This is a regression test for a user-triggerable WARN introduced by
commit 3b27de2718 ("KVM: x86: split the two parts of emulator_pio_in").
Signed-off-by: Sean Christopherson <seanjc@google.com>
Message-Id: <20211025201311.1881846-3-seanjc@google.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
AMD proceessors define an address range that is reserved by HyperTransport
and causes a failure if used for guest physical addresses. Avoid
selftests failures by reserving those guest physical addresses; the
rules are:
- On parts with <40 bits, its fully hidden from software.
- Before Fam17h, it was always 12G just below 1T, even if there was more
RAM above this location. In this case we just not use any RAM above 1T.
- On Fam17h and later, it is variable based on SME, and is either just
below 2^48 (no encryption) or 2^43 (encryption).
Fixes: ef4c9f4f65 ("KVM: selftests: Fix 32-bit truncation of vm_get_max_gfn()")
Cc: stable@vger.kernel.org
Cc: David Matlack <dmatlack@google.com>
Reported-by: Maxim Levitsky <mlevitsk@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Message-Id: <20210805105423.412878-1-pbonzini@redhat.com>
Reviewed-by: Sean Christopherson <seanjc@google.com>
Tested-by: Sean Christopherson <seanjc@google.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
INTERCEPT_x are bit positions, but the code was using the raw value of
INTERCEPT_VINTR (4) instead of BIT(INTERCEPT_VINTR).
This resulted in masking of bit 2 - that is, SMI instead of VINTR.
Signed-off-by: Maciej S. Szmigiero <maciej.szmigiero@oracle.com>
Message-Id: <49b9571d25588870db5380b0be1a41df4bbaaf93.1638486479.git.maciej.szmigiero@oracle.com>
- Use the proper operand types in __{get,put}_user() to prevent
truncation in SEV-ES string io
- Make sure the kernel mappings are present in trampoline_pgd in order
to prevent any potential accesses to unmapped memory after switching to
it
- Fix a trivial list corruption in objtool's pv_ops validation
- Disable the clocksource watchdog for TSC on platforms which claim
that the TSC is constant, doesn't stop in sleep states, CPU has TSC
adjust and the number of sockets of the platform are max 2, to prevent
erroneous markings of the TSC as unstable.
- Make sure TSC adjust is always checked not only when going idle
- Prevent a stack leak by initializing struct _fpx_sw_bytes properly in
the FPU code
- Fix INTEL_FAM6_RAPTORLAKE define naming to adhere to the convention
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Merge tag 'x86_urgent_for_v5.16_rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull x86 fixes from Borislav Petkov:
- Fix a couple of SWAPGS fencing issues in the x86 entry code
- Use the proper operand types in __{get,put}_user() to prevent
truncation in SEV-ES string io
- Make sure the kernel mappings are present in trampoline_pgd in order
to prevent any potential accesses to unmapped memory after switching
to it
- Fix a trivial list corruption in objtool's pv_ops validation
- Disable the clocksource watchdog for TSC on platforms which claim
that the TSC is constant, doesn't stop in sleep states, CPU has TSC
adjust and the number of sockets of the platform are max 2, to
prevent erroneous markings of the TSC as unstable.
- Make sure TSC adjust is always checked not only when going idle
- Prevent a stack leak by initializing struct _fpx_sw_bytes properly in
the FPU code
- Fix INTEL_FAM6_RAPTORLAKE define naming to adhere to the convention
* tag 'x86_urgent_for_v5.16_rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
x86/xen: Add xenpv_restore_regs_and_return_to_usermode()
x86/entry: Use the correct fence macro after swapgs in kernel CR3
x86/entry: Add a fence for kernel entry SWAPGS in paranoid_entry()
x86/sev: Fix SEV-ES INS/OUTS instructions for word, dword, and qword
x86/64/mm: Map all kernel memory into trampoline_pgd
objtool: Fix pv_ops noinstr validation
x86/tsc: Disable clocksource watchdog for TSC on qualified platorms
x86/tsc: Add a timer to make sure TSC_adjust is always checked
x86/fpu/signal: Initialize sw_bytes in save_xstate_epilog()
x86/cpu: Drop spurious underscore from RAPTOR_LAKE #define
Boris reported that in one of his randconfig builds, objtool got
infinitely stuck. Turns out there's trivial list corruption in the
pv_ops tracking when a function is both in a static table and in a code
assignment.
Avoid re-adding function to the pv_ops[] lists when they're already on
it.
Fixes: db2b0c5d7b ("objtool: Support pv_opsindirect calls for noinstr")
Reported-by: Borislav Petkov <bp@alien8.de>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Signed-off-by: Borislav Petkov <bp@suse.de>
Tested-by: Borislav Petkov <bp@alien8.de>
Link: https://lkml.kernel.org/r/20211202204534.GA16608@worktop.programming.kicks-ass.net
and wireguard.
Current release - regressions:
- smc: keep smc_close_final()'s error code during active close
Current release - new code bugs:
- iwlwifi: various static checker fixes (int overflow, leaks, missing
error codes)
- rtw89: fix size of firmware header before transfer, avoid crash
- mt76: fix timestamp check in tx_status; fix pktid leak;
- mscc: ocelot: fix missing unlock on error in ocelot_hwstamp_set()
Previous releases - regressions:
- smc: fix list corruption in smc_lgr_cleanup_early
- ipv4: convert fib_num_tclassid_users to atomic_t
Previous releases - always broken:
- tls: fix authentication failure in CCM mode
- vrf: reset IPCB/IP6CB when processing outbound pkts, prevent
incorrect processing
- dsa: mv88e6xxx: fixes for various device errata
- rds: correct socket tunable error in rds_tcp_tune()
- ipv6: fix memory leak in fib6_rule_suppress
- wireguard: reset peer src endpoint when netns exits
- wireguard: improve resilience to DoS around incoming handshakes
- tcp: fix page frag corruption on page fault which involves TCP
- mpls: fix missing attributes in delete notifications
- mt7915: fix NULL pointer dereference with ad-hoc mode
Misc:
- rt2x00: be more lenient about EPROTO errors during start
- mlx4_en: update reported link modes for 1/10G
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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Merge tag 'net-5.16-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net
Pull networking fixes from Jakub Kicinski:
"Including fixes from wireless, and wireguard.
Mostly scattered driver changes this week, with one big clump in
mv88e6xxx. Nothing of note, really.
Current release - regressions:
- smc: keep smc_close_final()'s error code during active close
Current release - new code bugs:
- iwlwifi: various static checker fixes (int overflow, leaks, missing
error codes)
- rtw89: fix size of firmware header before transfer, avoid crash
- mt76: fix timestamp check in tx_status; fix pktid leak;
- mscc: ocelot: fix missing unlock on error in ocelot_hwstamp_set()
Previous releases - regressions:
- smc: fix list corruption in smc_lgr_cleanup_early
- ipv4: convert fib_num_tclassid_users to atomic_t
Previous releases - always broken:
- tls: fix authentication failure in CCM mode
- vrf: reset IPCB/IP6CB when processing outbound pkts, prevent
incorrect processing
- dsa: mv88e6xxx: fixes for various device errata
- rds: correct socket tunable error in rds_tcp_tune()
- ipv6: fix memory leak in fib6_rule_suppress
- wireguard: reset peer src endpoint when netns exits
- wireguard: improve resilience to DoS around incoming handshakes
- tcp: fix page frag corruption on page fault which involves TCP
- mpls: fix missing attributes in delete notifications
- mt7915: fix NULL pointer dereference with ad-hoc mode
Misc:
- rt2x00: be more lenient about EPROTO errors during start
- mlx4_en: update reported link modes for 1/10G"
* tag 'net-5.16-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net: (85 commits)
net: dsa: b53: Add SPI ID table
gro: Fix inconsistent indenting
selftests: net: Correct case name
net/rds: correct socket tunable error in rds_tcp_tune()
mctp: Don't let RTM_DELROUTE delete local routes
net/smc: Keep smc_close_final rc during active close
ibmvnic: drop bad optimization in reuse_tx_pools()
ibmvnic: drop bad optimization in reuse_rx_pools()
net/smc: fix wrong list_del in smc_lgr_cleanup_early
Fix Comment of ETH_P_802_3_MIN
ethernet: aquantia: Try MAC address from device tree
ipv4: convert fib_num_tclassid_users to atomic_t
net: avoid uninit-value from tcp_conn_request
net: annotate data-races on txq->xmit_lock_owner
octeontx2-af: Fix a memleak bug in rvu_mbox_init()
net/mlx4_en: Fix an use-after-free bug in mlx4_en_try_alloc_resources()
vrf: Reset IPCB/IP6CB when processing outbound pkts in vrf dev xmit
net: qlogic: qlcnic: Fix a NULL pointer dereference in qlcnic_83xx_add_rings()
net: dsa: mv88e6xxx: Link in pcs_get_state() if AN is bypassed
net: dsa: mv88e6xxx: Fix inband AN for 2500base-x on 88E6393X family
...
ipv6_addr_bind/ipv4_addr_bind are function names. Previously, bind test
would not be run by default due to the wrong case names
Fixes: 34d0302ab8 ("selftests: Add ipv6 address bind tests to fcnal-test")
Fixes: 75b2b2b3db ("selftests: Add ipv4 address bind tests to fcnal-test")
Signed-off-by: Li Zhijian <lizhijian@cn.fujitsu.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
* Fix constant sign extension affecting TCR_EL2 and preventing
running on ARMv8.7 models due to spurious bits being set
* Fix use of helpers using PSTATE early on exit by always sampling
it as soon as the exit takes place
* Move pkvm's 32bit handling into a common helper
RISC-V:
* Fix incorrect KVM_MAX_VCPUS value
* Unmap stage2 mapping when deleting/moving a memslot
x86:
* Fix and downgrade BUG_ON due to uninitialized cache
* Many APICv and MOVE_ENC_CONTEXT_FROM fixes
* Correctly emulate TLB flushes around nested vmentry/vmexit
and when the nested hypervisor uses VPID
* Prevent modifications to CPUID after the VM has run
* Other smaller bugfixes
Generic:
* Memslot handling bugfixes
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Merge tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm
Pull kvm fixes from Paolo Bonzini:
"ARM64:
- Fix constant sign extension affecting TCR_EL2 and preventing
running on ARMv8.7 models due to spurious bits being set
- Fix use of helpers using PSTATE early on exit by always sampling it
as soon as the exit takes place
- Move pkvm's 32bit handling into a common helper
RISC-V:
- Fix incorrect KVM_MAX_VCPUS value
- Unmap stage2 mapping when deleting/moving a memslot
x86:
- Fix and downgrade BUG_ON due to uninitialized cache
- Many APICv and MOVE_ENC_CONTEXT_FROM fixes
- Correctly emulate TLB flushes around nested vmentry/vmexit and when
the nested hypervisor uses VPID
- Prevent modifications to CPUID after the VM has run
- Other smaller bugfixes
Generic:
- Memslot handling bugfixes"
* tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm: (44 commits)
KVM: fix avic_set_running for preemptable kernels
KVM: VMX: clear vmx_x86_ops.sync_pir_to_irr if APICv is disabled
KVM: SEV: accept signals in sev_lock_two_vms
KVM: SEV: do not take kvm->lock when destroying
KVM: SEV: Prohibit migration of a VM that has mirrors
KVM: SEV: Do COPY_ENC_CONTEXT_FROM with both VMs locked
selftests: sev_migrate_tests: add tests for KVM_CAP_VM_COPY_ENC_CONTEXT_FROM
KVM: SEV: move mirror status to destination of KVM_CAP_VM_MOVE_ENC_CONTEXT_FROM
KVM: SEV: initialize regions_list of a mirror VM
KVM: SEV: cleanup locking for KVM_CAP_VM_MOVE_ENC_CONTEXT_FROM
KVM: SEV: do not use list_replace_init on an empty list
KVM: x86: Use a stable condition around all VT-d PI paths
KVM: x86: check PIR even for vCPUs with disabled APICv
KVM: VMX: prepare sync_pir_to_irr for running with APICv disabled
KVM: selftests: page_table_test: fix calculation of guest_test_phys_mem
KVM: x86/mmu: Handle "default" period when selectively waking kthread
KVM: MMU: shadow nested paging does not have PKU
KVM: x86/mmu: Remove spurious TLB flushes in TDP MMU zap collapsible path
KVM: x86/mmu: Use yield-safe TDP MMU root iter in MMU notifier unmapping
KVM: X86: Use vcpu->arch.walk_mmu for kvm_mmu_invlpg()
...
Commit 98e1385ef2 ("include/linux/radix-tree.h: replace kernel.h with
the necessary inclusions") broke the radix tree test suite in two
different ways; first by including math.h which didn't exist in the
tools directory, and second by removing an implicit include of
spinlock.h before lockdep.h. Fix both issues.
Cc: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: Matthew Wilcox (Oracle) <willy@infradead.org>
Acked-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
VMs that mirror an encryption context rely on the owner to keep the
ASID allocated. Performing a KVM_CAP_VM_MOVE_ENC_CONTEXT_FROM
would cause a dangling ASID:
1. copy context from A to B (gets ref to A)
2. move context from A to L (moves ASID from A to L)
3. close L (releases ASID from L, B still references it)
The right way to do the handoff instead is to create a fresh mirror VM
on the destination first:
1. copy context from A to B (gets ref to A)
[later] 2. close B (releases ref to A)
3. move context from A to L (moves ASID from A to L)
4. copy context from L to M
So, catch the situation by adding a count of how many VMs are
mirroring this one's encryption context.
Fixes: 0b020f5af0 ("KVM: SEV: Add support for SEV-ES intra host migration")
Message-Id: <20211123005036.2954379-11-pbonzini@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
I am putting the tests in sev_migrate_tests because the failure conditions are
very similar and some of the setup code can be reused, too.
The tests cover both successful creation of a mirror VM, and error
conditions.
Cc: Peter Gonda <pgonda@google.com>
Cc: Sean Christopherson <seanjc@google.com>
Message-Id: <20211123005036.2954379-9-pbonzini@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
A kvm_page_table_test run with its default settings fails on VMX due to
memory region add failure:
> ==== Test Assertion Failure ====
> lib/kvm_util.c:952: ret == 0
> pid=10538 tid=10538 errno=17 - File exists
> 1 0x00000000004057d1: vm_userspace_mem_region_add at kvm_util.c:947
> 2 0x0000000000401ee9: pre_init_before_test at kvm_page_table_test.c:302
> 3 (inlined by) run_test at kvm_page_table_test.c:374
> 4 0x0000000000409754: for_each_guest_mode at guest_modes.c:53
> 5 0x0000000000401860: main at kvm_page_table_test.c:500
> 6 0x00007f82ae2d8554: ?? ??:0
> 7 0x0000000000401894: _start at ??:?
> KVM_SET_USER_MEMORY_REGION IOCTL failed,
> rc: -1 errno: 17
> slot: 1 flags: 0x0
> guest_phys_addr: 0xc0000000 size: 0x40000000
This is because the memory range that this test is trying to add
(0x0c0000000 - 0x100000000) conflicts with LAPIC mapping at 0x0fee00000.
Looking at the code it seems that guest_test_*phys*_mem variable gets
mistakenly overwritten with guest_test_*virt*_mem while trying to adjust
the former for alignment.
With the correct variable adjusted this test runs successfully.
Signed-off-by: Maciej S. Szmigiero <maciej.szmigiero@oracle.com>
Message-Id: <52e487458c3172923549bbcf9dfccfbe6faea60b.1637940473.git.maciej.szmigiero@oracle.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Each peer's endpoint contains a dst_cache entry that takes a reference
to another netdev. When the containing namespace exits, we take down the
socket and prevent future sockets from being created (by setting
creating_net to NULL), which removes that potential reference on the
netns. However, it doesn't release references to the netns that a netdev
cached in dst_cache might be taking, so the netns still might fail to
exit. Since the socket is gimped anyway, we can simply clear all the
dst_caches (by way of clearing the endpoint src), which will release all
references.
However, the current dst_cache_reset function only releases those
references lazily. But it turns out that all of our usages of
wg_socket_clear_peer_endpoint_src are called from contexts that are not
exactly high-speed or bottle-necked. For example, when there's
connection difficulty, or when userspace is reconfiguring the interface.
And in particular for this patch, when the netns is exiting. So for
those cases, it makes more sense to call dst_release immediately. For
that, we add a small helper function to dst_cache.
This patch also adds a test to netns.sh from Hangbin Liu to ensure this
doesn't regress.
Tested-by: Hangbin Liu <liuhangbin@gmail.com>
Reported-by: Xiumei Mu <xmu@redhat.com>
Cc: Toke Høiland-Jørgensen <toke@redhat.com>
Cc: Paolo Abeni <pabeni@redhat.com>
Fixes: 900575aa33 ("wireguard: device: avoid circular netns references")
Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
DEBUG_PI_LIST was renamed to DEBUG_PLIST since 8e18faeac3 ("lib/plist:
rename DEBUG_PI_LIST to DEBUG_PLIST").
Signed-off-by: Li Zhijian <lizhijian@cn.fujitsu.com>
Fixes: 8e18faeac3 ("lib/plist: rename DEBUG_PI_LIST to DEBUG_PLIST")
Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
We previously removed the restriction on looping to self, and then added
a test to make sure the kernel didn't blow up during a routing loop. The
kernel didn't blow up, thankfully, but on certain architectures where
skb fragmentation is easier, such as ppc64, the skbs weren't actually
being discarded after a few rounds through. But the test wasn't catching
this. So actually test explicitly for massive increases in tx to see if
we have a routing loop. Note that the actual loop problem will need to
be addressed in a different commit.
Fixes: b673e24aad ("wireguard: socket: remove errant restriction on looping to self")
Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
The selftests currently parse the kernel log at the end to track
potential memory leaks. With these tests now reading off the end of the
buffer, due to recent optimizations, some creation messages were lost,
making the tests think that there was a free without an alloc. Fix this
by increasing the kernel log size.
Fixes: 24b70eeeb4 ("wireguard: use synchronize_net rather than synchronize_rcu")
Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Current release - regressions:
- r8169: fix incorrect mac address assignment
- vlan: fix underflow for the real_dev refcnt when vlan creation fails
- smc: avoid warning of possible recursive locking
Current release - new code bugs:
- vsock/virtio: suppress used length validation
- neigh: fix crash in v6 module initialization error path
Previous releases - regressions:
- af_unix: fix change in behavior in read after shutdown
- igb: fix netpoll exit with traffic, avoid warning
- tls: fix splice_read() when starting mid-record
- lan743x: fix deadlock in lan743x_phy_link_status_change()
- marvell: prestera: fix bridge port operation
Previous releases - always broken:
- tcp_cubic: fix spurious Hystart ACK train detections for
not-cwnd-limited flows
- nexthop: fix refcount issues when replacing IPv6 groups
- nexthop: fix null pointer dereference when IPv6 is not enabled
- phylink: force link down and retrigger resolve on interface change
- mptcp: fix delack timer length calculation and incorrect early
clearing
- ieee802154: handle iftypes as u32, prevent shift-out-of-bounds
- nfc: virtual_ncidev: change default device permissions
- netfilter: ctnetlink: fix error codes and flags used for kernel side
filtering of dumps
- netfilter: flowtable: fix IPv6 tunnel addr match
- ncsi: align payload to 32-bit to fix dropped packets
- iavf: fix deadlock and loss of config during VF interface reset
- ice: avoid bpf_prog refcount underflow
- ocelot: fix broken PTP over IP and PTP API violations
Misc:
- marvell: mvpp2: increase MTU limit when XDP enabled
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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Merge tag 'net-5.16-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net
Pull networking fixes from Jakub Kicinski:
"Networking fixes, including fixes from netfilter.
Current release - regressions:
- r8169: fix incorrect mac address assignment
- vlan: fix underflow for the real_dev refcnt when vlan creation
fails
- smc: avoid warning of possible recursive locking
Current release - new code bugs:
- vsock/virtio: suppress used length validation
- neigh: fix crash in v6 module initialization error path
Previous releases - regressions:
- af_unix: fix change in behavior in read after shutdown
- igb: fix netpoll exit with traffic, avoid warning
- tls: fix splice_read() when starting mid-record
- lan743x: fix deadlock in lan743x_phy_link_status_change()
- marvell: prestera: fix bridge port operation
Previous releases - always broken:
- tcp_cubic: fix spurious Hystart ACK train detections for
not-cwnd-limited flows
- nexthop: fix refcount issues when replacing IPv6 groups
- nexthop: fix null pointer dereference when IPv6 is not enabled
- phylink: force link down and retrigger resolve on interface change
- mptcp: fix delack timer length calculation and incorrect early
clearing
- ieee802154: handle iftypes as u32, prevent shift-out-of-bounds
- nfc: virtual_ncidev: change default device permissions
- netfilter: ctnetlink: fix error codes and flags used for kernel
side filtering of dumps
- netfilter: flowtable: fix IPv6 tunnel addr match
- ncsi: align payload to 32-bit to fix dropped packets
- iavf: fix deadlock and loss of config during VF interface reset
- ice: avoid bpf_prog refcount underflow
- ocelot: fix broken PTP over IP and PTP API violations
Misc:
- marvell: mvpp2: increase MTU limit when XDP enabled"
* tag 'net-5.16-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net: (94 commits)
net: dsa: microchip: implement multi-bridge support
net: mscc: ocelot: correctly report the timestamping RX filters in ethtool
net: mscc: ocelot: set up traps for PTP packets
net: ptp: add a definition for the UDP port for IEEE 1588 general messages
net: mscc: ocelot: create a function that replaces an existing VCAP filter
net: mscc: ocelot: don't downgrade timestamping RX filters in SIOCSHWTSTAMP
net: hns3: fix incorrect components info of ethtool --reset command
net: hns3: fix one incorrect value of page pool info when queried by debugfs
net: hns3: add check NULL address for page pool
net: hns3: fix VF RSS failed problem after PF enable multi-TCs
net: qed: fix the array may be out of bound
net/smc: Don't call clcsock shutdown twice when smc shutdown
net: vlan: fix underflow for the real_dev refcnt
ptp: fix filter names in the documentation
ethtool: ioctl: fix potential NULL deref in ethtool_set_coalesce()
nfc: virtual_ncidev: change default device permissions
net/sched: sch_ets: don't peek at classes beyond 'nbands'
net: stmmac: Disable Tx queues when reconfiguring the interface
selftests: tls: test for correct proto_ops
tls: fix replacing proto_ops
...
