svn commit: r195599 - in user/kmacy/releng_7_2_fcs_1/sys/amd64:
amd64 include
Kip Macy
kmacy at FreeBSD.org
Fri Jul 10 23:51:57 UTC 2009
Author: kmacy
Date: Fri Jul 10 23:51:56 2009
New Revision: 195599
URL: http://svn.freebsd.org/changeset/base/195599
Log:
add page exclusion to the API
Modified:
user/kmacy/releng_7_2_fcs_1/sys/amd64/amd64/minidump_machdep.c
user/kmacy/releng_7_2_fcs_1/sys/amd64/include/md_var.h
Modified: user/kmacy/releng_7_2_fcs_1/sys/amd64/amd64/minidump_machdep.c
==============================================================================
--- user/kmacy/releng_7_2_fcs_1/sys/amd64/amd64/minidump_machdep.c Fri Jul 10 23:51:22 2009 (r195598)
+++ user/kmacy/releng_7_2_fcs_1/sys/amd64/amd64/minidump_machdep.c Fri Jul 10 23:51:56 2009 (r195599)
@@ -56,6 +56,7 @@ CTASSERT(sizeof(struct kerneldumpheader)
extern uint64_t KPDPphys;
uint64_t *vm_page_dump;
+uint64_t *vm_page_dump_exclude;
int vm_page_dump_size;
static struct kerneldumpheader kdh;
@@ -69,7 +70,7 @@ static size_t counter, progress;
CTASSERT(sizeof(*vm_page_dump) == 8);
static int
-is_dumpable(vm_paddr_t pa, int ignorebit)
+is_dumpable(vm_paddr_t pa)
{
int i, idx, bit, isdata;
uint64_t pfn = pa;
@@ -77,7 +78,7 @@ is_dumpable(vm_paddr_t pa, int ignorebit
pfn >>= PAGE_SHIFT;
idx = pfn >> 6; /* 2^6 = 64 */
bit = pfn & 63;
- isdata = (ignorebit == TRUE) ? 1 : vm_page_dump[idx] & (1ul << bit);
+ isdata = ((vm_page_dump_exclude[idx] & (1ul << bit)) == 0);
for (i = 0; dump_avail[i] != 0 || dump_avail[i + 1] != 0; i += 2) {
if (pa >= dump_avail[i] && pa < dump_avail[i + 1] && isdata)
@@ -224,7 +225,7 @@ minidumpsys(struct dumperinfo *di)
/* This is an entire 2M page. */
pa = pd[j] & PG_PS_FRAME;
for (k = 0; k < NPTEPG; k++) {
- if (is_dumpable(pa, TRUE))
+ if (is_dumpable(pa))
dump_add_page(pa);
pa += PAGE_SIZE;
}
@@ -236,7 +237,7 @@ minidumpsys(struct dumperinfo *di)
for (k = 0; k < NPTEPG; k++) {
if ((pt[k] & PG_V) == PG_V) {
pa = pt[k] & PG_FRAME;
- if (is_dumpable(pa, TRUE))
+ if (is_dumpable(pa))
dump_add_page(pa);
}
}
@@ -256,7 +257,7 @@ minidumpsys(struct dumperinfo *di)
bit = bsfq(bits);
pa = (((uint64_t)i * sizeof(*vm_page_dump) * NBBY) + bit) * PAGE_SIZE;
/* Clear out undumpable pages now if needed */
- if (is_dumpable(pa, FALSE)) {
+ if (is_dumpable(pa)) {
dumpsize += PAGE_SIZE;
} else {
dump_drop_page(pa);
@@ -437,3 +438,25 @@ dump_drop_page(vm_paddr_t pa)
bit = pa & 63;
atomic_clear_long(&vm_page_dump[idx], 1ul << bit);
}
+
+void
+dump_exclude_page(vm_paddr_t pa)
+{
+ int idx, bit;
+
+ pa >>= PAGE_SHIFT;
+ idx = pa >> 6; /* 2^6 = 64 */
+ bit = pa & 63;
+ atomic_set_long(&vm_page_dump_exclude[idx], 1ul << bit);
+}
+
+void
+dump_unexclude_page(vm_paddr_t pa)
+{
+ int idx, bit;
+
+ pa >>= PAGE_SHIFT;
+ idx = pa >> 6; /* 2^6 = 64 */
+ bit = pa & 63;
+ atomic_clear_long(&vm_page_dump_exclude[idx], 1ul << bit);
+}
Modified: user/kmacy/releng_7_2_fcs_1/sys/amd64/include/md_var.h
==============================================================================
--- user/kmacy/releng_7_2_fcs_1/sys/amd64/include/md_var.h Fri Jul 10 23:51:22 2009 (r195598)
+++ user/kmacy/releng_7_2_fcs_1/sys/amd64/include/md_var.h Fri Jul 10 23:51:56 2009 (r195599)
@@ -57,6 +57,7 @@ extern char kstack[];
extern char sigcode[];
extern int szsigcode;
extern uint64_t *vm_page_dump;
+extern uint64_t *vm_page_dump_exclude;
extern int vm_page_dump_size;
typedef void alias_for_inthand_t(u_int cs, u_int ef, u_int esp, u_int ss);
@@ -72,6 +73,8 @@ void doreti_iret(void) __asm(__STRING(do
void doreti_iret_fault(void) __asm(__STRING(doreti_iret_fault));
void dump_add_page(vm_paddr_t);
void dump_drop_page(vm_paddr_t);
+void dump_exclude_page(vm_paddr_t);
+void dump_unexclude_page(vm_paddr_t);
void initializecpu(void);
void fillw(int /*u_short*/ pat, void *base, size_t cnt);
void fpstate_drop(struct thread *td);
More information about the svn-src-user
mailing list