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author | Linus Torvalds <torvalds@linux-foundation.org> | 2022-08-05 00:59:54 +0300 |
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committer | Linus Torvalds <torvalds@linux-foundation.org> | 2022-08-05 00:59:54 +0300 |
commit | 7c5c3a6177fa9646884114fc7f2e970b0bc50dc9 (patch) | |
tree | 956857522574ae7cb07d2227dc16e53d7e9e00e7 /tools/testing/selftests/kvm/aarch64/psci_test.c | |
parent | f0a892f599c46af673e47418c47c15e69a7b67f4 (diff) | |
parent | 281106f938d3daaea6f8b6723a8217a2a1ef6936 (diff) | |
download | linux-7c5c3a6177fa9646884114fc7f2e970b0bc50dc9.tar.xz |
Merge tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm
Pull kvm updates from Paolo Bonzini:
"Quite a large pull request due to a selftest API overhaul and some
patches that had come in too late for 5.19.
ARM:
- Unwinder implementations for both nVHE modes (classic and
protected), complete with an overflow stack
- Rework of the sysreg access from userspace, with a complete rewrite
of the vgic-v3 view to allign with the rest of the infrastructure
- Disagregation of the vcpu flags in separate sets to better track
their use model.
- A fix for the GICv2-on-v3 selftest
- A small set of cosmetic fixes
RISC-V:
- Track ISA extensions used by Guest using bitmap
- Added system instruction emulation framework
- Added CSR emulation framework
- Added gfp_custom flag in struct kvm_mmu_memory_cache
- Added G-stage ioremap() and iounmap() functions
- Added support for Svpbmt inside Guest
s390:
- add an interface to provide a hypervisor dump for secure guests
- improve selftests to use TAP interface
- enable interpretive execution of zPCI instructions (for PCI
passthrough)
- First part of deferred teardown
- CPU Topology
- PV attestation
- Minor fixes
x86:
- Permit guests to ignore single-bit ECC errors
- Intel IPI virtualization
- Allow getting/setting pending triple fault with
KVM_GET/SET_VCPU_EVENTS
- PEBS virtualization
- Simplify PMU emulation by just using PERF_TYPE_RAW events
- More accurate event reinjection on SVM (avoid retrying
instructions)
- Allow getting/setting the state of the speaker port data bit
- Refuse starting the kvm-intel module if VM-Entry/VM-Exit controls
are inconsistent
- "Notify" VM exit (detect microarchitectural hangs) for Intel
- Use try_cmpxchg64 instead of cmpxchg64
- Ignore benign host accesses to PMU MSRs when PMU is disabled
- Allow disabling KVM's "MONITOR/MWAIT are NOPs!" behavior
- Allow NX huge page mitigation to be disabled on a per-vm basis
- Port eager page splitting to shadow MMU as well
- Enable CMCI capability by default and handle injected UCNA errors
- Expose pid of vcpu threads in debugfs
- x2AVIC support for AMD
- cleanup PIO emulation
- Fixes for LLDT/LTR emulation
- Don't require refcounted "struct page" to create huge SPTEs
- Miscellaneous cleanups:
- MCE MSR emulation
- Use separate namespaces for guest PTEs and shadow PTEs bitmasks
- PIO emulation
- Reorganize rmap API, mostly around rmap destruction
- Do not workaround very old KVM bugs for L0 that runs with nesting enabled
- new selftests API for CPUID
Generic:
- Fix races in gfn->pfn cache refresh; do not pin pages tracked by
the cache
- new selftests API using struct kvm_vcpu instead of a (vm, id)
tuple"
* tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm: (606 commits)
selftests: kvm: set rax before vmcall
selftests: KVM: Add exponent check for boolean stats
selftests: KVM: Provide descriptive assertions in kvm_binary_stats_test
selftests: KVM: Check stat name before other fields
KVM: x86/mmu: remove unused variable
RISC-V: KVM: Add support for Svpbmt inside Guest/VM
RISC-V: KVM: Use PAGE_KERNEL_IO in kvm_riscv_gstage_ioremap()
RISC-V: KVM: Add G-stage ioremap() and iounmap() functions
KVM: Add gfp_custom flag in struct kvm_mmu_memory_cache
RISC-V: KVM: Add extensible CSR emulation framework
RISC-V: KVM: Add extensible system instruction emulation framework
RISC-V: KVM: Factor-out instruction emulation into separate sources
RISC-V: KVM: move preempt_disable() call in kvm_arch_vcpu_ioctl_run
RISC-V: KVM: Make kvm_riscv_guest_timer_init a void function
RISC-V: KVM: Fix variable spelling mistake
RISC-V: KVM: Improve ISA extension by using a bitmap
KVM, x86/mmu: Fix the comment around kvm_tdp_mmu_zap_leafs()
KVM: SVM: Dump Virtual Machine Save Area (VMSA) to klog
KVM: x86/mmu: Treat NX as a valid SPTE bit for NPT
KVM: x86: Do not block APIC write for non ICR registers
...
Diffstat (limited to 'tools/testing/selftests/kvm/aarch64/psci_test.c')
-rw-r--r-- | tools/testing/selftests/kvm/aarch64/psci_test.c | 72 |
1 files changed, 29 insertions, 43 deletions
diff --git a/tools/testing/selftests/kvm/aarch64/psci_test.c b/tools/testing/selftests/kvm/aarch64/psci_test.c index 88541de21c41..f7621f6e938e 100644 --- a/tools/testing/selftests/kvm/aarch64/psci_test.c +++ b/tools/testing/selftests/kvm/aarch64/psci_test.c @@ -17,9 +17,6 @@ #include "processor.h" #include "test_util.h" -#define VCPU_ID_SOURCE 0 -#define VCPU_ID_TARGET 1 - #define CPU_ON_ENTRY_ADDR 0xfeedf00dul #define CPU_ON_CONTEXT_ID 0xdeadc0deul @@ -64,49 +61,48 @@ static uint64_t psci_features(uint32_t func_id) return res.a0; } -static void vcpu_power_off(struct kvm_vm *vm, uint32_t vcpuid) +static void vcpu_power_off(struct kvm_vcpu *vcpu) { struct kvm_mp_state mp_state = { .mp_state = KVM_MP_STATE_STOPPED, }; - vcpu_set_mp_state(vm, vcpuid, &mp_state); + vcpu_mp_state_set(vcpu, &mp_state); } -static struct kvm_vm *setup_vm(void *guest_code) +static struct kvm_vm *setup_vm(void *guest_code, struct kvm_vcpu **source, + struct kvm_vcpu **target) { struct kvm_vcpu_init init; struct kvm_vm *vm; - vm = vm_create(VM_MODE_DEFAULT, DEFAULT_GUEST_PHY_PAGES, O_RDWR); - kvm_vm_elf_load(vm, program_invocation_name); + vm = vm_create(2); ucall_init(vm, NULL); vm_ioctl(vm, KVM_ARM_PREFERRED_TARGET, &init); init.features[0] |= (1 << KVM_ARM_VCPU_PSCI_0_2); - aarch64_vcpu_add_default(vm, VCPU_ID_SOURCE, &init, guest_code); - aarch64_vcpu_add_default(vm, VCPU_ID_TARGET, &init, guest_code); + *source = aarch64_vcpu_add(vm, 0, &init, guest_code); + *target = aarch64_vcpu_add(vm, 1, &init, guest_code); return vm; } -static void enter_guest(struct kvm_vm *vm, uint32_t vcpuid) +static void enter_guest(struct kvm_vcpu *vcpu) { struct ucall uc; - vcpu_run(vm, vcpuid); - if (get_ucall(vm, vcpuid, &uc) == UCALL_ABORT) - TEST_FAIL("%s at %s:%ld", (const char *)uc.args[0], __FILE__, - uc.args[1]); + vcpu_run(vcpu); + if (get_ucall(vcpu, &uc) == UCALL_ABORT) + REPORT_GUEST_ASSERT(uc); } -static void assert_vcpu_reset(struct kvm_vm *vm, uint32_t vcpuid) +static void assert_vcpu_reset(struct kvm_vcpu *vcpu) { uint64_t obs_pc, obs_x0; - get_reg(vm, vcpuid, ARM64_CORE_REG(regs.pc), &obs_pc); - get_reg(vm, vcpuid, ARM64_CORE_REG(regs.regs[0]), &obs_x0); + vcpu_get_reg(vcpu, ARM64_CORE_REG(regs.pc), &obs_pc); + vcpu_get_reg(vcpu, ARM64_CORE_REG(regs.regs[0]), &obs_x0); TEST_ASSERT(obs_pc == CPU_ON_ENTRY_ADDR, "unexpected target cpu pc: %lx (expected: %lx)", @@ -134,37 +130,29 @@ static void guest_test_cpu_on(uint64_t target_cpu) static void host_test_cpu_on(void) { + struct kvm_vcpu *source, *target; uint64_t target_mpidr; struct kvm_vm *vm; struct ucall uc; - vm = setup_vm(guest_test_cpu_on); + vm = setup_vm(guest_test_cpu_on, &source, &target); /* * make sure the target is already off when executing the test. */ - vcpu_power_off(vm, VCPU_ID_TARGET); + vcpu_power_off(target); - get_reg(vm, VCPU_ID_TARGET, KVM_ARM64_SYS_REG(SYS_MPIDR_EL1), &target_mpidr); - vcpu_args_set(vm, VCPU_ID_SOURCE, 1, target_mpidr & MPIDR_HWID_BITMASK); - enter_guest(vm, VCPU_ID_SOURCE); + vcpu_get_reg(target, KVM_ARM64_SYS_REG(SYS_MPIDR_EL1), &target_mpidr); + vcpu_args_set(source, 1, target_mpidr & MPIDR_HWID_BITMASK); + enter_guest(source); - if (get_ucall(vm, VCPU_ID_SOURCE, &uc) != UCALL_DONE) + if (get_ucall(source, &uc) != UCALL_DONE) TEST_FAIL("Unhandled ucall: %lu", uc.cmd); - assert_vcpu_reset(vm, VCPU_ID_TARGET); + assert_vcpu_reset(target); kvm_vm_free(vm); } -static void enable_system_suspend(struct kvm_vm *vm) -{ - struct kvm_enable_cap cap = { - .cap = KVM_CAP_ARM_SYSTEM_SUSPEND, - }; - - vm_enable_cap(vm, &cap); -} - static void guest_test_system_suspend(void) { uint64_t ret; @@ -179,16 +167,17 @@ static void guest_test_system_suspend(void) static void host_test_system_suspend(void) { + struct kvm_vcpu *source, *target; struct kvm_run *run; struct kvm_vm *vm; - vm = setup_vm(guest_test_system_suspend); - enable_system_suspend(vm); + vm = setup_vm(guest_test_system_suspend, &source, &target); + vm_enable_cap(vm, KVM_CAP_ARM_SYSTEM_SUSPEND, 0); - vcpu_power_off(vm, VCPU_ID_TARGET); - run = vcpu_state(vm, VCPU_ID_SOURCE); + vcpu_power_off(target); + run = source->run; - enter_guest(vm, VCPU_ID_SOURCE); + enter_guest(source); TEST_ASSERT(run->exit_reason == KVM_EXIT_SYSTEM_EVENT, "Unhandled exit reason: %u (%s)", @@ -202,10 +191,7 @@ static void host_test_system_suspend(void) int main(void) { - if (!kvm_check_cap(KVM_CAP_ARM_SYSTEM_SUSPEND)) { - print_skip("KVM_CAP_ARM_SYSTEM_SUSPEND not supported"); - exit(KSFT_SKIP); - } + TEST_REQUIRE(kvm_has_cap(KVM_CAP_ARM_SYSTEM_SUSPEND)); host_test_cpu_on(); host_test_system_suspend(); |