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author | Linus Torvalds <torvalds@linux-foundation.org> | 2021-11-02 11:24:14 -0700 |
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committer | Linus Torvalds <torvalds@linux-foundation.org> | 2021-11-02 11:24:14 -0700 |
commit | d7e0a795bf37a13554c80cfc5ba97abedf53f391 (patch) | |
tree | 26f107fbe530b1bd0912a748b808cbe476bfbf49 /tools/testing/selftests/kvm/memslot_perf_test.c | |
parent | 44261f8e287d1b02a2e4bfbd7399fb8d37d1ee24 (diff) | |
parent | 52cf891d8dbd7592261fa30f373410b97f22b76c (diff) | |
download | linux-d7e0a795bf37a13554c80cfc5ba97abedf53f391.tar.bz2 |
Merge tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm
Pull KVM updates from Paolo Bonzini:
"ARM:
- More progress on the protected VM front, now with the full fixed
feature set as well as the limitation of some hypercalls after
initialisation.
- Cleanup of the RAZ/WI sysreg handling, which was pointlessly
complicated
- Fixes for the vgic placement in the IPA space, together with a
bunch of selftests
- More memcg accounting of the memory allocated on behalf of a guest
- Timer and vgic selftests
- Workarounds for the Apple M1 broken vgic implementation
- KConfig cleanups
- New kvmarm.mode=none option, for those who really dislike us
RISC-V:
- New KVM port.
x86:
- New API to control TSC offset from userspace
- TSC scaling for nested hypervisors on SVM
- Switch masterclock protection from raw_spin_lock to seqcount
- Clean up function prototypes in the page fault code and avoid
repeated memslot lookups
- Convey the exit reason to userspace on emulation failure
- Configure time between NX page recovery iterations
- Expose Predictive Store Forwarding Disable CPUID leaf
- Allocate page tracking data structures lazily (if the i915 KVM-GT
functionality is not compiled in)
- Cleanups, fixes and optimizations for the shadow MMU code
s390:
- SIGP Fixes
- initial preparations for lazy destroy of secure VMs
- storage key improvements/fixes
- Log the guest CPNC
Starting from this release, KVM-PPC patches will come from Michael
Ellerman's PPC tree"
* tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm: (227 commits)
RISC-V: KVM: fix boolreturn.cocci warnings
RISC-V: KVM: remove unneeded semicolon
RISC-V: KVM: Fix GPA passed to __kvm_riscv_hfence_gvma_xyz() functions
RISC-V: KVM: Factor-out FP virtualization into separate sources
KVM: s390: add debug statement for diag 318 CPNC data
KVM: s390: pv: properly handle page flags for protected guests
KVM: s390: Fix handle_sske page fault handling
KVM: x86: SGX must obey the KVM_INTERNAL_ERROR_EMULATION protocol
KVM: x86: On emulation failure, convey the exit reason, etc. to userspace
KVM: x86: Get exit_reason as part of kvm_x86_ops.get_exit_info
KVM: x86: Clarify the kvm_run.emulation_failure structure layout
KVM: s390: Add a routine for setting userspace CPU state
KVM: s390: Simplify SIGP Set Arch handling
KVM: s390: pv: avoid stalls when making pages secure
KVM: s390: pv: avoid stalls for kvm_s390_pv_init_vm
KVM: s390: pv: avoid double free of sida page
KVM: s390: pv: add macros for UVC CC values
s390/mm: optimize reset_guest_reference_bit()
s390/mm: optimize set_guest_storage_key()
s390/mm: no need for pte_alloc_map_lock() if we know the pmd is present
...
Diffstat (limited to 'tools/testing/selftests/kvm/memslot_perf_test.c')
-rw-r--r-- | tools/testing/selftests/kvm/memslot_perf_test.c | 56 |
1 files changed, 34 insertions, 22 deletions
diff --git a/tools/testing/selftests/kvm/memslot_perf_test.c b/tools/testing/selftests/kvm/memslot_perf_test.c index d6e381e01db7..1727f75e0c2c 100644 --- a/tools/testing/selftests/kvm/memslot_perf_test.c +++ b/tools/testing/selftests/kvm/memslot_perf_test.c @@ -127,43 +127,54 @@ static bool verbose; pr_info(__VA_ARGS__); \ } while (0) +static void check_mmio_access(struct vm_data *vm, struct kvm_run *run) +{ + TEST_ASSERT(vm->mmio_ok, "Unexpected mmio exit"); + TEST_ASSERT(run->mmio.is_write, "Unexpected mmio read"); + TEST_ASSERT(run->mmio.len == 8, + "Unexpected exit mmio size = %u", run->mmio.len); + TEST_ASSERT(run->mmio.phys_addr >= vm->mmio_gpa_min && + run->mmio.phys_addr <= vm->mmio_gpa_max, + "Unexpected exit mmio address = 0x%llx", + run->mmio.phys_addr); +} + static void *vcpu_worker(void *data) { struct vm_data *vm = data; struct kvm_run *run; struct ucall uc; - uint64_t cmd; run = vcpu_state(vm->vm, VCPU_ID); while (1) { vcpu_run(vm->vm, VCPU_ID); - if (run->exit_reason == KVM_EXIT_IO) { - cmd = get_ucall(vm->vm, VCPU_ID, &uc); - if (cmd != UCALL_SYNC) - break; - + switch (get_ucall(vm->vm, VCPU_ID, &uc)) { + case UCALL_SYNC: + TEST_ASSERT(uc.args[1] == 0, + "Unexpected sync ucall, got %lx", + (ulong)uc.args[1]); sem_post(&vcpu_ready); continue; - } - - if (run->exit_reason != KVM_EXIT_MMIO) + case UCALL_NONE: + if (run->exit_reason == KVM_EXIT_MMIO) + check_mmio_access(vm, run); + else + goto done; break; - - TEST_ASSERT(vm->mmio_ok, "Unexpected mmio exit"); - TEST_ASSERT(run->mmio.is_write, "Unexpected mmio read"); - TEST_ASSERT(run->mmio.len == 8, - "Unexpected exit mmio size = %u", run->mmio.len); - TEST_ASSERT(run->mmio.phys_addr >= vm->mmio_gpa_min && - run->mmio.phys_addr <= vm->mmio_gpa_max, - "Unexpected exit mmio address = 0x%llx", - run->mmio.phys_addr); + case UCALL_ABORT: + TEST_FAIL("%s at %s:%ld, val = %lu", + (const char *)uc.args[0], + __FILE__, uc.args[1], uc.args[2]); + break; + case UCALL_DONE: + goto done; + default: + TEST_FAIL("Unknown ucall %lu", uc.cmd); + } } - if (run->exit_reason == KVM_EXIT_IO && cmd == UCALL_ABORT) - TEST_FAIL("%s at %s:%ld, val = %lu", (const char *)uc.args[0], - __FILE__, uc.args[1], uc.args[2]); - +done: return NULL; } @@ -268,6 +279,7 @@ static bool prepare_vm(struct vm_data *data, int nslots, uint64_t *maxslots, TEST_ASSERT(data->hva_slots, "malloc() fail"); data->vm = vm_create_default(VCPU_ID, mempages, guest_code); + ucall_init(data->vm, NULL); pr_info_v("Adding slots 1..%i, each slot with %"PRIu64" pages + %"PRIu64" extra pages last\n", max_mem_slots - 1, data->pages_per_slot, rempages); |