From: Thomas Veerman <thomas@minix3.org>
Date: Tue, 27 Sep 2011 15:15:51 +0000 (+0000)
Subject: Revert to using flushtlb instead of invlpg
X-Git-Tag: v3.2.0~296
X-Git-Url: http://zhaoyanbai.com/repos/%22http:/www.isc.org/icons/mult.png?a=commitdiff_plain;h=8c9e62b299064fa2d920575124ba6493ddcd5b4a;p=minix.git

Revert to using flushtlb instead of invlpg

Somehow the usage of invlpg causes Minix to crash on Qemu. Reverting
temporarily until we have a proper fix.
---

diff --git a/servers/vm/arch/i386/pagetable.c b/servers/vm/arch/i386/pagetable.c
index 6bb893b34..bbd2183e9 100644
--- a/servers/vm/arch/i386/pagetable.c
+++ b/servers/vm/arch/i386/pagetable.c
@@ -333,8 +333,8 @@ PUBLIC void *vm_allocpage(phys_bytes *phys, int reason)
 		return NULL;
 	}
 
-	if((r=sys_vmctl(SELF, VMCTL_I386_INVLPG, loc)) != OK) {
-		panic("VMCTL_I386_INVLPG failed: %d", r);
+	if((r=sys_vmctl(SELF, VMCTL_FLUSHTLB, 0)) != OK) {
+		panic("VMCTL_FLUSHTLB failed: %d", r);
 	}
 
 	level--;
@@ -370,8 +370,8 @@ PUBLIC void vm_pagelock(void *vir, int lockflag)
 		panic("vm_lockpage: pt_writemap failed");
 	}
 
-	if((r=sys_vmctl(SELF, VMCTL_I386_INVLPG, m)) != OK) {
-		panic("VMCTL_I386_INVLPG failed: %d", r);
+	if((r=sys_vmctl(SELF, VMCTL_FLUSHTLB, 0)) != OK) {
+		panic("VMCTL_FLUSHTLB failed: %d", r);
 	}
 
 	return;