- revert pmap_kenter_temporary to taking a physical address

- make minidump work

3 files changed, 11 insertions, 9 deletions

diff --git a/sys/i386/i386/dump_machdep.c b/sys/i386/i386/dump_machdep.c
index 2f5dcc9..d0c6ba7 100644
--- a/sys/i386/i386/dump_machdep.c
+++ b/sys/i386/i386/dump_machdep.c
@@ -182,11 +182,7 @@ cb_dumpdata(struct md_pa *mdp, int seqnr, void *arg)
 		}
 		for (i = 0; i < chunk; i++) {
 			a = pa + i * PAGE_SIZE;
-#ifdef XEN
-			va = pmap_kenter_temporary(xpmap_ptom(trunc_page(a)), i);
-#else			
 			va = pmap_kenter_temporary(trunc_page(a), i);
-#endif			
 		}
 		error = dump_write(di, va, 0, dumplo, sz);
 		if (error)
diff --git a/sys/i386/i386/minidump_machdep.c b/sys/i386/i386/minidump_machdep.c
index af52306..8d9db0c 100644
--- a/sys/i386/i386/minidump_machdep.c
+++ b/sys/i386/i386/minidump_machdep.c
@@ -65,6 +65,11 @@ static void *dump_va;
 static uint64_t counter, progress;
 
 CTASSERT(sizeof(*vm_page_dump) == 4);
+#ifndef XEN
+#define xpmap_mtop(x) (x)
+#define xpmap_ptom(x) (x)
+#endif
+
 
 static int
 is_dumpable(vm_paddr_t pa)
@@ -194,7 +199,7 @@ minidumpsys(struct dumperinfo *di)
 		j = va >> PDRSHIFT;
 		if ((pd[j] & (PG_PS | PG_V)) == (PG_PS | PG_V))  {
 			/* This is an entire 2M page. */
-			pa = pd[j] & PG_PS_FRAME;
+			pa = xpmap_mtop(pd[j] & PG_PS_FRAME);
 			for (k = 0; k < NPTEPG; k++) {
 				if (is_dumpable(pa))
 					dump_add_page(pa);
@@ -204,10 +209,10 @@ minidumpsys(struct dumperinfo *di)
 		}
 		if ((pd[j] & PG_V) == PG_V) {
 			/* set bit for each valid page in this 2MB block */
-			pt = pmap_kenter_temporary(pd[j] & PG_FRAME, 0);
+			pt = pmap_kenter_temporary(xpmap_mtop(pd[j] & PG_FRAME), 0);
 			for (k = 0; k < NPTEPG; k++) {
 				if ((pt[k] & PG_V) == PG_V) {
-					pa = pt[k] & PG_FRAME;
+					pa = xpmap_mtop(pt[k] & PG_FRAME);
 					if (is_dumpable(pa))
 						dump_add_page(pa);
 				}
@@ -307,7 +312,7 @@ minidumpsys(struct dumperinfo *di)
 			continue;
 		}
 		if ((pd[j] & PG_V) == PG_V) {
-			pa = pd[j] & PG_FRAME;
+			pa = xpmap_mtop(pd[j] & PG_FRAME);
 			error = blk_write(di, 0, pa, PAGE_SIZE);
 			if (error)
 				goto fail;
diff --git a/sys/i386/xen/pmap.c b/sys/i386/xen/pmap.c
index 1b4345f..c5c3e66 100644
--- a/sys/i386/xen/pmap.c
+++ b/sys/i386/xen/pmap.c
@@ -3101,9 +3101,10 @@ void *
 pmap_kenter_temporary(vm_paddr_t pa, int i)
 {
 	vm_offset_t va;
+	vm_paddr_t ma = xpmap_ptom(pa);
 
 	va = (vm_offset_t)crashdumpmap + (i * PAGE_SIZE);
-	PT_SET_MA(va, (pa & ~PAGE_MASK) | PG_V | pgeflag);
+	PT_SET_MA(va, (ma & ~PAGE_MASK) | PG_V | pgeflag);
 	invlpg(va);
 	return ((void *)crashdumpmap);
 }