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| author |   Sean Christopherson <seanjc@google.com> | 2022-02-25 18:22:44 +0000 |
|---|---|---|
| committer |   Paolo Bonzini <pbonzini@redhat.com> | 2022-03-01 08:58:25 -0500 |
| commit | 2f6f66ccd21e854cd3743bc8def68f8b4e7d91fc (patch) | |
| tree | a9cb92a6733706ed5c4b2aa5d4c3fad5e20b8d50 /virt | |
| parent | KVM: x86: Invoke kvm_mmu_unload() directly on CR4.PCIDE change (diff) | |
| download | linux-dev-2f6f66ccd21e854cd3743bc8def68f8b4e7d91fc.tar.xz linux-dev-2f6f66ccd21e854cd3743bc8def68f8b4e7d91fc.zip | |
KVM: Drop kvm_reload_remote_mmus(), open code request in x86 users
Remove the generic kvm_reload_remote_mmus() and open code its
functionality into the two x86 callers. x86 is (obviously) the only
architecture that uses the hook, and is also the only architecture that
uses KVM_REQ_MMU_RELOAD in a way that's consistent with the name. That
will change in a future patch, as x86's usage when zapping a single
shadow page x86 doesn't actually _need_ to reload all vCPUs' MMUs, only
MMUs whose root is being zapped actually need to be reloaded.
s390 also uses KVM_REQ_MMU_RELOAD, but for a slightly different purpose.
Drop the generic code in anticipation of implementing s390 and x86 arch
specific requests, which will allow dropping KVM_REQ_MMU_RELOAD entirely.
Opportunistically reword the x86 TDP MMU comment to avoid making
references to functions (and requests!) when possible, and to remove the
rather ambiguous "this".
No functional change intended.
Cc: Ben Gardon <bgardon@google.com>
Signed-off-by: Sean Christopherson <seanjc@google.com>
Reviewed-by: Ben Gardon <bgardon@google.com>
Message-Id: <20220225182248.3812651-4-seanjc@google.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Diffstat (limited to 'virt')
| -rw-r--r-- | virt/kvm/kvm_main.c | 5 |
1 files changed, 0 insertions, 5 deletions
diff --git a/virt/kvm/kvm_main.c b/virt/kvm/kvm_main.c index cdf1fa3c60ae..64eb99444688 100644 --- a/virt/kvm/kvm_main.c +++ b/virt/kvm/kvm_main.c @@ -354,11 +354,6 @@ void kvm_flush_remote_tlbs(struct kvm *kvm) EXPORT_SYMBOL_GPL(kvm_flush_remote_tlbs); #endif -void kvm_reload_remote_mmus(struct kvm *kvm) -{ - kvm_make_all_cpus_request(kvm, KVM_REQ_MMU_RELOAD); -} - #ifdef KVM_ARCH_NR_OBJS_PER_MEMORY_CACHE static inline void *mmu_memory_cache_alloc_obj(struct kvm_mmu_memory_cache *mc, gfp_t gfp_flags) |