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author | Paolo Bonzini <pbonzini@redhat.com> | 2023-08-31 13:18:53 -0400 |
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committer | Paolo Bonzini <pbonzini@redhat.com> | 2023-08-31 13:18:53 -0400 |
commit | e0fb12c673e53d2a103b9e0abc92204de0fc325d (patch) | |
tree | 3f91fa1ed8efb9e2b80e542075fb93cdbd0c3370 /include | |
parent | 2dde18cd1d8fac735875f2e4987f11817cc0bc2c (diff) | |
parent | 1f66f1246bfa08aaf13db897736de49cbeaf72a1 (diff) | |
download | linux-stable-e0fb12c673e53d2a103b9e0abc92204de0fc325d.tar.gz linux-stable-e0fb12c673e53d2a103b9e0abc92204de0fc325d.tar.bz2 linux-stable-e0fb12c673e53d2a103b9e0abc92204de0fc325d.zip |
Merge tag 'kvmarm-6.6' of git://git.kernel.org/pub/scm/linux/kernel/git/kvmarm/kvmarm into HEAD
KVM/arm64 updates for Linux 6.6
- Add support for TLB range invalidation of Stage-2 page tables,
avoiding unnecessary invalidations. Systems that do not implement
range invalidation still rely on a full invalidation when dealing
with large ranges.
- Add infrastructure for forwarding traps taken from a L2 guest to
the L1 guest, with L0 acting as the dispatcher, another baby step
towards the full nested support.
- Simplify the way we deal with the (long deprecated) 'CPU target',
resulting in a much needed cleanup.
- Fix another set of PMU bugs, both on the guest and host sides,
as we seem to never have any shortage of those...
- Relax the alignment requirements of EL2 VA allocations for
non-stack allocations, as we were otherwise wasting a lot of that
precious VA space.
- The usual set of non-functional cleanups, although I note the lack
of spelling fixes...
Diffstat (limited to 'include')
-rw-r--r-- | include/kvm/arm_pmu.h | 4 | ||||
-rw-r--r-- | include/linux/kvm_host.h | 24 |
2 files changed, 21 insertions, 7 deletions
diff --git a/include/kvm/arm_pmu.h b/include/kvm/arm_pmu.h index 847da6fc2713..31029f4f7be8 100644 --- a/include/kvm/arm_pmu.h +++ b/include/kvm/arm_pmu.h @@ -12,7 +12,7 @@ #define ARMV8_PMU_CYCLE_IDX (ARMV8_PMU_MAX_COUNTERS - 1) -#ifdef CONFIG_HW_PERF_EVENTS +#if IS_ENABLED(CONFIG_HW_PERF_EVENTS) && IS_ENABLED(CONFIG_KVM) struct kvm_pmc { u8 idx; /* index into the pmu->pmc array */ @@ -74,6 +74,7 @@ int kvm_arm_pmu_v3_enable(struct kvm_vcpu *vcpu); struct kvm_pmu_events *kvm_get_pmu_events(void); void kvm_vcpu_pmu_restore_guest(struct kvm_vcpu *vcpu); void kvm_vcpu_pmu_restore_host(struct kvm_vcpu *vcpu); +void kvm_vcpu_pmu_resync_el0(void); #define kvm_vcpu_has_pmu(vcpu) \ (test_bit(KVM_ARM_VCPU_PMU_V3, (vcpu)->arch.features)) @@ -171,6 +172,7 @@ static inline u8 kvm_arm_pmu_get_pmuver_limit(void) { return 0; } +static inline void kvm_vcpu_pmu_resync_el0(void) {} #endif diff --git a/include/linux/kvm_host.h b/include/linux/kvm_host.h index 9d3ac7720da9..394db2ce11e2 100644 --- a/include/linux/kvm_host.h +++ b/include/linux/kvm_host.h @@ -1359,6 +1359,9 @@ int kvm_vcpu_yield_to(struct kvm_vcpu *target); void kvm_vcpu_on_spin(struct kvm_vcpu *vcpu, bool yield_to_kernel_mode); void kvm_flush_remote_tlbs(struct kvm *kvm); +void kvm_flush_remote_tlbs_range(struct kvm *kvm, gfn_t gfn, u64 nr_pages); +void kvm_flush_remote_tlbs_memslot(struct kvm *kvm, + const struct kvm_memory_slot *memslot); #ifdef KVM_ARCH_NR_OBJS_PER_MEMORY_CACHE int kvm_mmu_topup_memory_cache(struct kvm_mmu_memory_cache *mc, int min); @@ -1387,10 +1390,7 @@ void kvm_arch_mmu_enable_log_dirty_pt_masked(struct kvm *kvm, unsigned long mask); void kvm_arch_sync_dirty_log(struct kvm *kvm, struct kvm_memory_slot *memslot); -#ifdef CONFIG_KVM_GENERIC_DIRTYLOG_READ_PROTECT -void kvm_arch_flush_remote_tlbs_memslot(struct kvm *kvm, - const struct kvm_memory_slot *memslot); -#else /* !CONFIG_KVM_GENERIC_DIRTYLOG_READ_PROTECT */ +#ifndef CONFIG_KVM_GENERIC_DIRTYLOG_READ_PROTECT int kvm_vm_ioctl_get_dirty_log(struct kvm *kvm, struct kvm_dirty_log *log); int kvm_get_dirty_log(struct kvm *kvm, struct kvm_dirty_log *log, int *is_dirty, struct kvm_memory_slot **memslot); @@ -1479,11 +1479,23 @@ static inline void kvm_arch_free_vm(struct kvm *kvm) } #endif -#ifndef __KVM_HAVE_ARCH_FLUSH_REMOTE_TLB -static inline int kvm_arch_flush_remote_tlb(struct kvm *kvm) +#ifndef __KVM_HAVE_ARCH_FLUSH_REMOTE_TLBS +static inline int kvm_arch_flush_remote_tlbs(struct kvm *kvm) { return -ENOTSUPP; } +#else +int kvm_arch_flush_remote_tlbs(struct kvm *kvm); +#endif + +#ifndef __KVM_HAVE_ARCH_FLUSH_REMOTE_TLBS_RANGE +static inline int kvm_arch_flush_remote_tlbs_range(struct kvm *kvm, + gfn_t gfn, u64 nr_pages) +{ + return -EOPNOTSUPP; +} +#else +int kvm_arch_flush_remote_tlbs_range(struct kvm *kvm, gfn_t gfn, u64 nr_pages); #endif #ifdef __KVM_HAVE_ARCH_NONCOHERENT_DMA |