We can get VA_BITS_ACTUAL from CONFIG_ARM64_VA_BITS by guess.
Without this patch, we may need to use "--machdep vabits_actual=48" to
set the VA_BITS_ACTUAL.
Signed-off-by: Huang Shijie <shijie@xxxxxxxxxxxxxxxxxxxxxx>
---
v1 --> v2:
Remove the DISKDUMP limit.
---
arm64.c | 5 +++++
1 file changed, 5 insertions(+)
diff --git a/arm64.c b/arm64.c
index 4f2c2b5..de1038a 100644
--- a/arm64.c
+++ b/arm64.c
@@ -4170,6 +4170,11 @@ arm64_calc_VA_BITS(void)
} else if (machdep->machspec->VA_BITS_ACTUAL) {
machdep->machspec->VA_BITS = machdep->machspec->VA_BITS_ACTUAL;
machdep->machspec->VA_START = _VA_START(machdep->machspec->VA_BITS_ACTUAL);
+ } else if (machdep->machspec->CONFIG_ARM64_VA_BITS) {
+ /* guess */
+ machdep->machspec->VA_BITS_ACTUAL = machdep->machspec->CONFIG_ARM64_VA_BITS;
+ machdep->machspec->VA_BITS = machdep->machspec->CONFIG_ARM64_VA_BITS;
+ machdep->machspec->VA_START = _VA_START(machdep->machspec->VA_BITS_ACTUAL);
} else
error(FATAL, "cannot determine VA_BITS_ACTUAL\n");
}
--
2.30.2
--
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