| From | Greg Kroah-Hartman <> | Subject | [PATCH 5.15 207/279] KVM: x86/xen: Fix get_attr of KVM_XEN_ATTR_TYPE_SHARED_INFO | Date | Wed, 24 Nov 2021 12:58:14 +0100 |
| |
From: David Woodhouse <dwmw@amazon.co.uk>
commit 4e8436479ad3be76a3823e6ce466ae464ce71300 upstream.
In commit 319afe68567b ("KVM: xen: do not use struct gfn_to_hva_cache") we stopped storing this in-kernel as a GPA, and started storing it as a GFN. Which means we probably should have stopped calling gpa_to_gfn() on it when userspace asks for it back.
Cc: stable@vger.kernel.org Fixes: 319afe68567b ("KVM: xen: do not use struct gfn_to_hva_cache") Signed-off-by: David Woodhouse <dwmw@amazon.co.uk> Message-Id: <20211115165030.7422-2-dwmw2@infradead.org> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> --- arch/x86/kvm/xen.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
--- a/arch/x86/kvm/xen.c +++ b/arch/x86/kvm/xen.c @@ -299,7 +299,7 @@ int kvm_xen_hvm_get_attr(struct kvm *kvm break; case KVM_XEN_ATTR_TYPE_SHARED_INFO: - data->u.shared_info.gfn = gpa_to_gfn(kvm->arch.xen.shinfo_gfn); + data->u.shared_info.gfn = kvm->arch.xen.shinfo_gfn; r = 0; break;
|