[xen staging] x86/hvm: Simplify hvm_enable_msr_interception()

[patchbot@xxxxxxx]

commit 32a971bfa6760d8fb260d9d721c5ecdd894deafd
Author:     Andrew Cooper <andrew.cooper3@xxxxxxxxxx>
AuthorDate: Tue Nov 30 14:37:59 2021 +0000
Commit:     Andrew Cooper <andrew.cooper3@xxxxxxxxxx>
CommitDate: Thu Jan 13 15:19:43 2022 +0000

    x86/hvm: Simplify hvm_enable_msr_interception()
    
    The sole caller doesn't check the return value, and both vendors implement 
the
    hook.
    
    Signed-off-by: Andrew Cooper <andrew.cooper3@xxxxxxxxxx>
    Reviewed-by: Jan Beulich <jbeulich@xxxxxxxx>
---
 xen/arch/x86/include/asm/hvm/hvm.h | 10 ++--------
 1 file changed, 2 insertions(+), 8 deletions(-)

diff --git a/xen/arch/x86/include/asm/hvm/hvm.h 
b/xen/arch/x86/include/asm/hvm/hvm.h
index bd2cbb0e7b..2767427aa9 100644
--- a/xen/arch/x86/include/asm/hvm/hvm.h
+++ b/xen/arch/x86/include/asm/hvm/hvm.h
@@ -631,15 +631,9 @@ static inline enum hvm_intblk 
nhvm_interrupt_blocked(struct vcpu *v)
     return hvm_funcs.nhvm_intr_blocked(v);
 }
 
-static inline bool_t hvm_enable_msr_interception(struct domain *d, uint32_t 
msr)
+static inline void hvm_enable_msr_interception(struct domain *d, uint32_t msr)
 {
-    if ( hvm_funcs.enable_msr_interception )
-    {
-        hvm_funcs.enable_msr_interception(d, msr);
-        return 1;
-    }
-
-    return 0;
+    hvm_funcs.enable_msr_interception(d, msr);
 }
 
 static inline bool_t hvm_is_singlestep_supported(void)
--
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