Changeset 42 for trunk/hal/x86_64

Timestamp:

Jun 22, 2017, 4:06:44 PM (8 years ago)

Author:

max@…

Message:

Explicitly use configurable parameters

Location:

trunk/hal/x86_64

Files:

• hal_boot.h (modified) (1 diff)
• hal_gpt.c (modified) (1 diff)

trunk/hal/x86_64/hal_boot.h

@@ -130 +130 @@
 #define NPDPG   (PAGE_SIZE / sizeof (pt_entry_t))
 
-#define CLUSTER0_MIN_VA 0xffff800000000000
-#define CLUSTER0_MAX_VA 0xffff800100000000 /* MIN + 4GB */
+#define CLUSTERS_BASE_VA        0xffff800000000000
 
+/*
+ * These parameters are configurable.
+ */
+#define CLUSTER_VA_SIZE 0x100000000 /* 4GB */
+#define CLUSTER_PA_SIZE 0x200000000 /* 8GB */
+
+#define CLUSTER_MIN_VA(n)       (CLUSTERS_BASE_VA + n * CLUSTER_VA_SIZE)
+#define CLUSTER_MAX_VA(n)       (CLUSTER_MIN_VA(n) + CLUSTER_VA_SIZE)
+

trunk/hal/x86_64/hal_gpt.c

@@ -177 +177 @@
 {
         pa_avail = firstpa;
-        va_avail = CLUSTER0_MIN_VA;
-        hal_gpt_maptree_area(CLUSTER0_MIN_VA, CLUSTER0_MAX_VA);
+        va_avail = CLUSTER_MIN_VA(0);
+        hal_gpt_maptree_area(CLUSTER_MIN_VA(0), CLUSTER_MAX_VA(0));
 }