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Commit ea8e064f authored by Joerg Roedel's avatar Joerg Roedel Committed by Avi Kivity
Browse files

KVM: SVM: remove nested_svm_do and helper functions 



This function is not longer required. So remove it.

Signed-off-by: default avatarJoerg Roedel <joerg.roedel@amd.com>
Signed-off-by: default avatarAvi Kivity <avi@redhat.com>
parent 9738b2c9

arch/x86/kvm/svm.c

+0 −60
Original line number Diff line number Diff line
@@ -1421,66 +1421,6 @@ static void nested_svm_unmap(void *addr, enum km_type idx) 
	kvm_release_page_dirty(page);

}



static struct page *nested_svm_get_page(struct vcpu_svm *svm, u64 gpa)

{

	struct page *page;



	down_read(&current->mm->mmap_sem);

	page = gfn_to_page(svm->vcpu.kvm, gpa >> PAGE_SHIFT);

	up_read(&current->mm->mmap_sem);



	if (is_error_page(page)) {

		printk(KERN_INFO "%s: could not find page at 0x%llx\n",

		       __func__, gpa);

		kvm_release_page_clean(page);

		kvm_inject_gp(&svm->vcpu, 0);

		return NULL;

	}

	return page;

}



static int nested_svm_do(struct vcpu_svm *svm,

			 u64 arg1_gpa, u64 arg2_gpa, void *opaque,

			 int (*handler)(struct vcpu_svm *svm,

					void *arg1,

					void *arg2,

					void *opaque))

{

	struct page *arg1_page;

	struct page *arg2_page = NULL;

	void *arg1;

	void *arg2 = NULL;

	int retval;



	arg1_page = nested_svm_get_page(svm, arg1_gpa);

	if(arg1_page == NULL)

		return 1;



	if (arg2_gpa) {

		arg2_page = nested_svm_get_page(svm, arg2_gpa);

		if(arg2_page == NULL) {

			kvm_release_page_clean(arg1_page);

			return 1;

		}

	}



	arg1 = kmap_atomic(arg1_page, KM_USER0);

	if (arg2_gpa)

		arg2 = kmap_atomic(arg2_page, KM_USER1);



	retval = handler(svm, arg1, arg2, opaque);



	kunmap_atomic(arg1, KM_USER0);

	if (arg2_gpa)

		kunmap_atomic(arg2, KM_USER1);



	kvm_release_page_dirty(arg1_page);

	if (arg2_gpa)

		kvm_release_page_dirty(arg2_page);



	return retval;

}



static bool nested_svm_exit_handled_msr(struct vcpu_svm *svm)

{

	u32 param = svm->vmcb->control.exit_info_1 & 1;