[v6,2/5] x86: Remove MEMORY_NUM_TYPES and NO_HARDCODE_MEM_TYPE

Commit Message

Demi Marie Obenour Dec. 22, 2022, 10:31 p.m. UTC

No functional change intended.

Signed-off-by: Demi Marie Obenour <[e-mail]>
---
Changes since v2:

- Keep MTRR_NUM_TYPES and adjust commit message accordingly
---
 xen/arch/x86/hvm/mtrr.c         | 18 +++++++++---------
 xen/arch/x86/include/asm/mtrr.h |  2 --
 xen/arch/x86/mm/shadow/multi.c  |  2 +-
 3 files changed, 10 insertions(+), 12 deletions(-)

Patch

diff --git a/xen/arch/x86/hvm/mtrr.c b/xen/arch/x86/hvm/mtrr.c
index 093103f6c768cf64f880d1b20e1c14f5918c1250..05e978041d62fd0d559462de181a04bef8a5bca9 100644
--- a/xen/arch/x86/hvm/mtrr.c
+++ b/xen/arch/x86/hvm/mtrr.c
@@ -38,7 +38,7 @@  static const uint8_t pat_entry_2_pte_flags[8] = {
 
 /* Effective mm type lookup table, according to MTRR and PAT. */
 static const uint8_t mm_type_tbl[MTRR_NUM_TYPES][X86_NUM_MT] = {
-#define RS MEMORY_NUM_TYPES
+#define RS MTRR_NUM_TYPES
 #define UC X86_MT_UC
 #define WB X86_MT_WB
 #define WC X86_MT_WC
@@ -66,9 +66,9 @@  static const uint8_t mm_type_tbl[MTRR_NUM_TYPES][X86_NUM_MT] = {
  * Reverse lookup table, to find a pat type according to MTRR and effective
  * memory type. This table is dynamically generated.
  */
-static uint8_t __read_mostly mtrr_epat_tbl[MTRR_NUM_TYPES][MEMORY_NUM_TYPES] =
-    { [0 ... MTRR_NUM_TYPES-1] =
-        { [0 ... MEMORY_NUM_TYPES-1] = INVALID_MEM_TYPE }
+static uint8_t __read_mostly mtrr_epat_tbl[MTRR_NUM_TYPES][MTRR_NUM_TYPES] =
+    { [0 ... MTRR_NUM_TYPES - 1] =
+        { [0 ... MTRR_NUM_TYPES - 1] = INVALID_MEM_TYPE }
     };
 
 /* Lookup table for PAT entry of a given PAT value in host PAT. */
@@ -85,7 +85,7 @@  static int __init cf_check hvm_mtrr_pat_init(void)
         {
             unsigned int tmp = mm_type_tbl[i][j];
 
-            if ( tmp < MEMORY_NUM_TYPES )
+            if ( tmp < MTRR_NUM_TYPES )
                 mtrr_epat_tbl[i][tmp] = j;
         }
     }
@@ -317,11 +317,11 @@  static uint8_t effective_mm_type(struct mtrr_state *m,
                                  uint8_t gmtrr_mtype)
 {
     uint8_t mtrr_mtype, pat_value;
-   
+
     /* if get_pat_flags() gives a dedicated MTRR type,
      * just use it
-     */ 
-    if ( gmtrr_mtype == NO_HARDCODE_MEM_TYPE )
+     */
+    if ( gmtrr_mtype == MTRR_NUM_TYPES )
         mtrr_mtype = mtrr_get_type(m, gpa, 0);
     else
         mtrr_mtype = gmtrr_mtype;
@@ -346,7 +346,7 @@  uint32_t get_pat_flags(struct vcpu *v,
     /* 1. Get the effective memory type of guest physical address,
      * with the pair of guest MTRR and PAT
      */
-    guest_eff_mm_type = effective_mm_type(g, pat, gpaddr, 
+    guest_eff_mm_type = effective_mm_type(g, pat, gpaddr,
                                           gl1e_flags, gmtrr_mtype);
     /* 2. Get the memory type of host physical address, with MTRR */
     shadow_mtrr_type = mtrr_get_type(&mtrr_state, spaddr, 0);
diff --git a/xen/arch/x86/include/asm/mtrr.h b/xen/arch/x86/include/asm/mtrr.h
index e4f6ca6048334b2094a1836cc2f298453641232f..4b7f840a965954cc4b59698327a37e47026893a4 100644
--- a/xen/arch/x86/include/asm/mtrr.h
+++ b/xen/arch/x86/include/asm/mtrr.h
@@ -4,8 +4,6 @@ 
 #include <xen/mm.h>
 
 #define MTRR_NUM_TYPES       X86_MT_UCM
-#define MEMORY_NUM_TYPES     MTRR_NUM_TYPES
-#define NO_HARDCODE_MEM_TYPE MTRR_NUM_TYPES
 
 #define NORMAL_CACHE_MODE          0
 #define NO_FILL_CACHE_MODE         2
diff --git a/xen/arch/x86/mm/shadow/multi.c b/xen/arch/x86/mm/shadow/multi.c
index f5f7ff021bd9e057c5b6f6329de7acb5ef05d58f..1faf9940db6b0afefc5977c00c00fb6a39cd27d2 100644
--- a/xen/arch/x86/mm/shadow/multi.c
+++ b/xen/arch/x86/mm/shadow/multi.c
@@ -578,7 +578,7 @@  _sh_propagate(struct vcpu *v,
                             gflags,
                             gfn_to_paddr(target_gfn),
                             mfn_to_maddr(target_mfn),
-                            NO_HARDCODE_MEM_TYPE);
+                            MTRR_NUM_TYPES);
             }
     }