[PATCH v2 3/9] x86/shadow: Drop VALID_GFN()

[Andrew Cooper <andrew.cooper3@citrix.com>]

There is only one single user of VALID_GFN().  Inline the macro to remove the
added layer of indirection in sh_gva_to_gfn()

Signed-off-by: Andrew Cooper <andrew.cooper3@citrix.com>
---
CC: Tim Deegan <tim@xen.org>

v2:
 * New
---
 xen/arch/x86/mm/shadow/multi.c | 2 +-
 xen/include/asm-x86/guest_pt.h | 2 --
 2 files changed, 1 insertion(+), 3 deletions(-)

diff --git a/xen/arch/x86/mm/shadow/multi.c b/xen/arch/x86/mm/shadow/multi.c
index d9bf212..63c7ab5 100644
--- a/xen/arch/x86/mm/shadow/multi.c
+++ b/xen/arch/x86/mm/shadow/multi.c
@@ -3728,7 +3728,7 @@ sh_gva_to_gfn(struct vcpu *v, struct p2m_domain *p2m,
 #if (SHADOW_OPTIMIZATIONS & SHOPT_VIRTUAL_TLB)
     /* Check the vTLB cache first */
     unsigned long vtlb_gfn = vtlb_lookup(v, va, *pfec);
-    if ( VALID_GFN(vtlb_gfn) )
+    if ( vtlb_gfn != gfn_x(INVALID_GFN) )
         return vtlb_gfn;
 #endif /* (SHADOW_OPTIMIZATIONS & SHOPT_VIRTUAL_TLB) */
 
diff --git a/xen/include/asm-x86/guest_pt.h b/xen/include/asm-x86/guest_pt.h
index 6a06ba0..bedc771 100644
--- a/xen/include/asm-x86/guest_pt.h
+++ b/xen/include/asm-x86/guest_pt.h
@@ -32,8 +32,6 @@
 #error GUEST_PAGING_LEVELS not defined
 #endif
 
-#define VALID_GFN(m) (m != gfn_x(INVALID_GFN))
-
 static inline paddr_t
 gfn_to_paddr(gfn_t gfn)
 {
-- 
2.1.4


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