[xen staging] x86/hvm: Annotate hvm_physdev_op() with cf_check

[patchbot@xxxxxxx]

commit b68664ab8954fd6aecbc579fc7444aa6e07f5581
Author:     Andrew Cooper <andrew.cooper3@xxxxxxxxxx>
AuthorDate: Tue Mar 22 13:07:24 2022 +0100
Commit:     Jan Beulich <jbeulich@xxxxxxxx>
CommitDate: Tue Mar 22 13:07:24 2022 +0100

    x86/hvm: Annotate hvm_physdev_op() with cf_check
    
    This was missed previously, and would yield a fatal #CP for any HVM domain
    which issues a physdevop hypercall.
    
    Fixes: cdbe2b0a1aec ("x86: Enable CET Indirect Branch Tracking")
    Reported-by: Juergen Gross <jgross@xxxxxxxx>
    Signed-off-by: Andrew Cooper <andrew.cooper3@xxxxxxxxxx>
    Reviewed-by: Jan Beulich <jbeulich@xxxxxxxx>
---
 xen/arch/x86/hvm/hypercall.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/xen/arch/x86/hvm/hypercall.c b/xen/arch/x86/hvm/hypercall.c
index 030243810e..62b5349e7d 100644
--- a/xen/arch/x86/hvm/hypercall.c
+++ b/xen/arch/x86/hvm/hypercall.c
@@ -78,7 +78,7 @@ static long cf_check hvm_grant_table_op(
 }
 #endif
 
-static long hvm_physdev_op(int cmd, XEN_GUEST_HANDLE_PARAM(void) arg)
+static long cf_check hvm_physdev_op(int cmd, XEN_GUEST_HANDLE_PARAM(void) arg)
 {
     const struct vcpu *curr = current;
     const struct domain *currd = curr->domain;
--
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