KVM: x86/mmu: Use kvm_x86_call() instead of manual static_call()

Use KVM's preferred kvm_x86_call() wrapper to invoke static calls related
to mirror page tables.

No functional change intended.

Fixes: 77ac7079e66d ("KVM: x86/tdp_mmu: Propagate building mirror page tables")
Fixes: 94faba8999b9 ("KVM: x86/tdp_mmu: Propagate tearing down mirror page tables")
Reviewed-by: Kai Huang <kai.huang@intel.com>
Link: https://lore.kernel.org/r/20250331182703.725214-1-seanjc@google.com
Signed-off-by: Sean Christopherson <seanjc@google.com>

diff --git a/arch/x86/kvm/mmu/tdp_mmu.c b/arch/x86/kvm/mmu/tdp_mmu.c
index 1e2db49174594c45c93ecd7ef940efe42a63d53a..7f3d7229b2c1ff268ab5b8e38120fccb17f234d2 100644 (file)
--- a/arch/x86/kvm/mmu/tdp_mmu.c
+++ b/arch/x86/kvm/mmu/tdp_mmu.c
@@ -378,7 +378,7 @@ static void remove_external_spte(struct kvm *kvm, gfn_t gfn, u64 old_spte,
        /* Zapping leaf spte is allowed only when write lock is held. */
        lockdep_assert_held_write(&kvm->mmu_lock);
        /* Because write lock is held, operation should success. */
-       ret = static_call(kvm_x86_remove_external_spte)(kvm, gfn, level, old_pfn);
+       ret = kvm_x86_call(remove_external_spte)(kvm, gfn, level, old_pfn);
        KVM_BUG_ON(ret, kvm);
 }
 
@@ -485,8 +485,8 @@ static void handle_removed_pt(struct kvm *kvm, tdp_ptep_t pt, bool shared)
        }
 
        if (is_mirror_sp(sp) &&
-           WARN_ON(static_call(kvm_x86_free_external_spt)(kvm, base_gfn, sp->role.level,
-                                                         sp->external_spt))) {
+           WARN_ON(kvm_x86_call(free_external_spt)(kvm, base_gfn, sp->role.level,
+                                                   sp->external_spt))) {
                /*
                 * Failed to free page table page in mirror page table and
                 * there is nothing to do further.
@@ -538,12 +538,12 @@ static int __must_check set_external_spte_present(struct kvm *kvm, tdp_ptep_t sp
         * external page table, or leaf.
         */
        if (is_leaf) {
-               ret = static_call(kvm_x86_set_external_spte)(kvm, gfn, level, new_pfn);
+               ret = kvm_x86_call(set_external_spte)(kvm, gfn, level, new_pfn);
        } else {
                void *external_spt = get_external_spt(gfn, new_spte, level);
 
                KVM_BUG_ON(!external_spt, kvm);
-               ret = static_call(kvm_x86_link_external_spt)(kvm, gfn, level, external_spt);
+               ret = kvm_x86_call(link_external_spt)(kvm, gfn, level, external_spt);
        }
        if (ret)
                __kvm_tdp_mmu_write_spte(sptep, old_spte);