9os

commit 05b2cd263e2fa1e71a530f2d50fcf34d17c70601
parent d60556bf6cb6304a18de257d19b2e94bc6f80928
Author: Roberto E. Vargas Caballero <k0ga@shike2.com>
Date:   Sun, 18 Oct 2020 09:37:52 +0200

os9/arm64: Add ptable segment

This segment is used for the buffer allocator allocb().

Change-Id: I36a4885a5601bf33802cd78c4f471a99d6c12e2a

Diffstat:
M
src/os9/arch/arm64/fvp.c
 | 
11
++++++++---

1 file changed, 8 insertions(+), 3 deletions(-)
diff --git a/src/os9/arch/arm64/fvp.c b/src/os9/arch/arm64/fvp.c
@@ -21,14 +21,15 @@ Mach mach = {
 void
 imach(void)
 {
-	Map *textp, *datap, *stackp;
-	static Map maps[4];
+	Map *textp, *datap, *stackp, *pagep;
+	static Map maps[5];
 	extern char text[], etext[], end[];
 
 	mach.maps = maps;
 	textp = &maps[0];
 	datap = &maps[1];
 	stackp = &maps[2];
+	pagep = &maps[3];
 
 	textp->name = "text";
 	textp->pa = mach.phytext;
@@ -48,7 +49,11 @@ imach(void)
 	stackp->siz = 4*KiB;
 	stackp->perm = MR | MW;
 
-	barrier(DATA);
+	pagep->name = "ptable";
+	pagep->pa = mach.phystack;
+	pagep->va = 0xFFFFFF0000080000;
+	pagep->siz = PAGESIZE * 20;
+	pagep->perm = MR | MW;
 }
 
 int