From: Arun Thomas <arun@minix3.org>
Date: Sat, 11 Aug 2012 15:45:35 +0000 (+0200)
Subject: Rename sys_vmctl_get_cr3_i386
X-Git-Tag: v3.2.1~378
X-Git-Url: http://zhaoyanbai.com/repos/%22http:/www.isc.org/icons/ddns-confgen.html?a=commitdiff_plain;h=697f0d097fee50418622ec08895c5a7df30f4d2a;p=minix.git

Rename sys_vmctl_get_cr3_i386
---

diff --git a/include/minix/com.h b/include/minix/com.h
index 2e99f1068..9bf3a411d 100644
--- a/include/minix/com.h
+++ b/include/minix/com.h
@@ -616,8 +616,8 @@
 
 /* Values for SVMCTL_PARAM. */
 #define VMCTL_CLEAR_PAGEFAULT	12
-#define VMCTL_I386_GETCR3	13
-#define VMCTL_MEMREQ_GET	14
+#define VMCTL_GET_PDBR		13
+#define VMCTL_MEMREQ_GET 	14
 #define VMCTL_MEMREQ_REPLY	15
 #define VMCTL_NOPAGEZERO	18
 #define VMCTL_I386_KERNELLIMIT	19
diff --git a/include/minix/syslib.h b/include/minix/syslib.h
index 8aaf28715..7614a0259 100644
--- a/include/minix/syslib.h
+++ b/include/minix/syslib.h
@@ -66,7 +66,7 @@ int sys_vm_setbuf(phys_bytes base, phys_bytes size, phys_bytes high);
 int sys_vm_map(endpoint_t proc_ep, int do_map, phys_bytes base,
 	phys_bytes size, phys_bytes offset);
 int sys_vmctl(endpoint_t who, int param, u32_t value);
-int sys_vmctl_get_cr3_i386(endpoint_t who, u32_t *cr3);
+int sys_vmctl_get_pdbr(endpoint_t who, u32_t *pdbr);
 int sys_vmctl_get_memreq(endpoint_t *who, vir_bytes *mem, vir_bytes
 	*len, int *wrflag, endpoint_t *who_s, vir_bytes *mem_s, endpoint_t *);
 int sys_vmctl_enable_paging(void * data);
diff --git a/kernel/arch/i386/arch_do_vmctl.c b/kernel/arch/i386/arch_do_vmctl.c
index bb134c680..c6f36ec46 100644
--- a/kernel/arch/i386/arch_do_vmctl.c
+++ b/kernel/arch/i386/arch_do_vmctl.c
@@ -41,8 +41,8 @@ register message *m_ptr;	/* pointer to request message */
 struct proc *p;
 {
   switch(m_ptr->SVMCTL_PARAM) {
-	case VMCTL_I386_GETCR3:
-		/* Get process CR3. */
+	case VMCTL_GET_PDBR:
+		/* Get process page directory base reg (CR3). */
 		m_ptr->SVMCTL_VALUE = p->p_seg.p_cr3;
 		return OK;
 	case VMCTL_SETADDRSPACE:
diff --git a/lib/libsys/sys_vmctl.c b/lib/libsys/sys_vmctl.c
index 08951f65c..f7472ece0 100644
--- a/lib/libsys/sys_vmctl.c
+++ b/lib/libsys/sys_vmctl.c
@@ -12,16 +12,17 @@ int sys_vmctl(endpoint_t who, int param, u32_t value)
   return(r);
 }
 
-int sys_vmctl_get_cr3_i386(endpoint_t who, u32_t *cr3)
+/* Get page directory base register */
+int sys_vmctl_get_pdbr(endpoint_t who, u32_t *pdbr)
 {
   message m;
   int r;
 
   m.SVMCTL_WHO = who;
-  m.SVMCTL_PARAM = VMCTL_I386_GETCR3;
+  m.SVMCTL_PARAM = VMCTL_GET_PDBR;
   r = _kernel_call(SYS_VMCTL, &m);
   if(r == OK) {
-	*cr3 = m.SVMCTL_VALUE;
+	*pdbr = m.SVMCTL_VALUE;
   }
   return(r);
 }
diff --git a/servers/vm/arch/i386/pagetable.c b/servers/vm/arch/i386/pagetable.c
index 6831ec3c2..67a99d2f2 100644
--- a/servers/vm/arch/i386/pagetable.c
+++ b/servers/vm/arch/i386/pagetable.c
@@ -859,7 +859,7 @@ void pt_init(void)
 	vir_bytes sparepages_mem;
 	static u32_t currentpagedir[I386_VM_DIR_ENTRIES];
 	int m = kernel_boot_info.kern_mod;
-	u32_t mycr3;
+	u32_t mypdbr; /* Page Directory Base Register (cr3) value */
 
 	/* Find what the physical location of the kernel is. */
 	assert(m >= 0);
@@ -978,9 +978,9 @@ void pt_init(void)
 		panic("vm pt_new failed");
 
 	/* Get our current pagedir so we can see it. */
-	if(sys_vmctl_get_cr3_i386(SELF, &mycr3) != OK)
-		panic("VM: sys_vmctl_get_cr3_i386 failed");
-	if(sys_vircopy(NONE, mycr3, SELF, 
+	if(sys_vmctl_get_pdbr(SELF, &mypdbr) != OK)
+		panic("VM: sys_vmctl_get_pdbr failed");
+	if(sys_vircopy(NONE, mypdbr, SELF,
 		(vir_bytes) currentpagedir, I386_PAGE_SIZE) != OK)
 		panic("VM: sys_vircopy failed");