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Subject[PATCH 07/22] KVM: xen: Use static_call() for invoking kvm_x86_ops hooks
From
Use static_call() for invoking kvm_x86_ops function that already have a
defined static call, mostly as a step toward having _all_ calls to
kvm_x86_ops route through a static_call() in order to simplify auditing,
e.g. via grep, that all functions have an entry in kvm-x86-ops.h, but
also because there's no reason not to use a static_call().

Signed-off-by: Sean Christopherson <seanjc@google.com>
---
arch/x86/kvm/xen.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/arch/x86/kvm/xen.c b/arch/x86/kvm/xen.c
index bad57535fad0..419bae180930 100644
--- a/arch/x86/kvm/xen.c
+++ b/arch/x86/kvm/xen.c
@@ -695,7 +695,7 @@ int kvm_xen_write_hypercall_page(struct kvm_vcpu *vcpu, u64 data)
instructions[0] = 0xb8;

/* vmcall / vmmcall */
- kvm_x86_ops.patch_hypercall(vcpu, instructions + 5);
+ static_call(kvm_x86_patch_hypercall)(vcpu, instructions + 5);

/* ret */
instructions[8] = 0xc3;
@@ -830,7 +830,7 @@ int kvm_xen_hypercall(struct kvm_vcpu *vcpu)
vcpu->run->exit_reason = KVM_EXIT_XEN;
vcpu->run->xen.type = KVM_EXIT_XEN_HCALL;
vcpu->run->xen.u.hcall.longmode = longmode;
- vcpu->run->xen.u.hcall.cpl = kvm_x86_ops.get_cpl(vcpu);
+ vcpu->run->xen.u.hcall.cpl = static_call(kvm_x86_get_cpl)(vcpu);
vcpu->run->xen.u.hcall.input = input;
vcpu->run->xen.u.hcall.params[0] = params[0];
vcpu->run->xen.u.hcall.params[1] = params[1];
--
2.35.0.rc0.227.g00780c9af4-goog
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