diff options
| author | Sean Christopherson <seanjc@google.com> | 2023-04-05 03:31:33 +0300 |
|---|---|---|
| committer | Sean Christopherson <seanjc@google.com> | 2023-04-11 01:17:29 +0300 |
| commit | 9ed3bf411226f446a9795f2b49a15b9df98d7cf5 (patch) | |
| tree | dfbe8e6c2ec072d9d97120f4c79d18074b37e110 /arch/x86/kvm/mmu/mmu.c | |
| parent | 8a1300ff95185b23baff9c226a001c269108f9ea (diff) | |
| download | linux-9ed3bf411226f446a9795f2b49a15b9df98d7cf5.tar.xz | |
KVM: x86/mmu: Move filling of Hyper-V's TLB range struct into Hyper-V code
Refactor Hyper-V's range-based TLB flushing API to take a gfn+nr_pages
pair instead of a struct, and bury said struct in Hyper-V specific code.
Passing along two params generates much better code for the common case
where KVM is _not_ running on Hyper-V, as forwarding the flush on to
Hyper-V's hv_flush_remote_tlbs_range() from kvm_flush_remote_tlbs_range()
becomes a tail call.
Cc: David Matlack <dmatlack@google.com>
Reviewed-by: David Matlack <dmatlack@google.com>
Reviewed-by: Vitaly Kuznetsov <vkuznets@redhat.com>
Link: https://lore.kernel.org/r/20230405003133.419177-3-seanjc@google.com
Signed-off-by: Sean Christopherson <seanjc@google.com>
Diffstat (limited to 'arch/x86/kvm/mmu/mmu.c')
| -rw-r--r-- | arch/x86/kvm/mmu/mmu.c | 8 |
1 files changed, 2 insertions, 6 deletions
diff --git a/arch/x86/kvm/mmu/mmu.c b/arch/x86/kvm/mmu/mmu.c index 7654be48ff69..a7adbac0855c 100644 --- a/arch/x86/kvm/mmu/mmu.c +++ b/arch/x86/kvm/mmu/mmu.c @@ -278,15 +278,11 @@ static inline bool kvm_available_flush_remote_tlbs_range(void) void kvm_flush_remote_tlbs_range(struct kvm *kvm, gfn_t start_gfn, gfn_t nr_pages) { - struct kvm_tlb_range range; int ret = -EOPNOTSUPP; - range.start_gfn = start_gfn; - range.pages = nr_pages; - if (kvm_x86_ops.flush_remote_tlbs_range) - ret = static_call(kvm_x86_flush_remote_tlbs_range)(kvm, &range); - + ret = static_call(kvm_x86_flush_remote_tlbs_range)(kvm, start_gfn, + nr_pages); if (ret) kvm_flush_remote_tlbs(kvm); } |