> Date: Thu, 23 Sep 2021 01:46:31 +0530 > From: Ankur Bansal <[email protected]> > To: [email protected] > Cc: Ankur Bansal <[email protected]> > Subject: [Crash-utility] [PATCH] arm64 : assign page_offset and kvbase > based on VA_BITS passed > Message-ID: > <[email protected]> > Content-Type: text/plain; charset="US-ASCII" > > assign page_offset and kvbase based on VA_BITS passed >
Thank you for the patch, Ankur. Can you help to describe the reason in detail? And what happened? Thanks. Lianbo > Change-Id: I525f3c7fd91e1f06e909c2f4c1749c44c068baea > Signed-off-by: Ankur Bansal <[email protected]> > --- > arm64.c | 15 +++++++++++---- > 1 file changed, 11 insertions(+), 4 deletions(-) > > diff --git a/arm64.c b/arm64.c > index 7069312..2dc77f7 100644 > --- a/arm64.c > +++ b/arm64.c > @@ -220,10 +220,17 @@ arm64_init(int when) > > /* vabits_actual introduced after mm flip, so it should be > flipped layout */ > if (ms->VA_BITS_ACTUAL) { > - ms->page_offset = ARM64_FLIP_PAGE_OFFSET; > - /* useless on arm64 */ > - machdep->identity_map_base = ARM64_FLIP_PAGE_OFFSET; > - machdep->kvbase = ARM64_FLIP_PAGE_OFFSET; > + if ((pc->flags2 & SNAP)) { > + ms->page_offset = ARM64_FLIP_PAGE_OFFSET; > + /* useless on arm64 */ > + machdep->identity_map_base = > ARM64_FLIP_PAGE_OFFSET; > + machdep->kvbase = ARM64_FLIP_PAGE_OFFSET; > + } > + else{ > + ms->page_offset = > ARM64_FLIP_PAGE_OFFSET_ACTUAL; > + machdep->identity_map_base = > ARM64_FLIP_PAGE_OFFSET_ACTUAL; > + machdep->kvbase = > ARM64_FLIP_PAGE_OFFSET_ACTUAL; > + } > ms->userspace_top = ARM64_USERSPACE_TOP_ACTUAL; > } else { > ms->page_offset = ARM64_PAGE_OFFSET; > -- > 2.7.4 -- Crash-utility mailing list [email protected] https://listman.redhat.com/mailman/listinfo/crash-utility
