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Diffstat (limited to 'tools/testing/selftests/kvm/lib/x86_64/ucall.c')
-rw-r--r--tools/testing/selftests/kvm/lib/x86_64/ucall.c32
1 files changed, 0 insertions, 32 deletions
diff --git a/tools/testing/selftests/kvm/lib/x86_64/ucall.c b/tools/testing/selftests/kvm/lib/x86_64/ucall.c
deleted file mode 100644
index 4d41dc63cc9e..000000000000
--- a/tools/testing/selftests/kvm/lib/x86_64/ucall.c
+++ /dev/null
@@ -1,32 +0,0 @@
-// SPDX-License-Identifier: GPL-2.0
-/*
- * ucall support. A ucall is a "hypercall to userspace".
- *
- * Copyright (C) 2018, Red Hat, Inc.
- */
-#include "kvm_util.h"
-
-#define UCALL_PIO_PORT ((uint16_t)0x1000)
-
-void ucall_arch_init(struct kvm_vm *vm, vm_paddr_t mmio_gpa)
-{
-}
-
-void ucall_arch_do_ucall(vm_vaddr_t uc)
-{
- asm volatile("in %[port], %%al"
- : : [port] "d" (UCALL_PIO_PORT), "D" (uc) : "rax", "memory");
-}
-
-void *ucall_arch_get_ucall(struct kvm_vcpu *vcpu)
-{
- struct kvm_run *run = vcpu->run;
-
- if (run->exit_reason == KVM_EXIT_IO && run->io.port == UCALL_PIO_PORT) {
- struct kvm_regs regs;
-
- vcpu_regs_get(vcpu, &regs);
- return (void *)regs.rdi;
- }
- return NULL;
-}