[PATCHv3 0/4] arm64: make phys_to_virt() correct

[Pingfan Liu]

Gently ping, any comments or suggestions?

Thanks

On Tue, Dec 28, 2021 at 9:27 PM Pingfan Liu <piliu at redhat.com> wrote:
>
> Currently phys_to_virt() does not work well on 52-bits VA arm64 kernel.
> One issue is contributed by phys_offset not signed.
> The other is contributed by wrong page_offset.
>
> v2 -> v3:
> Discussed with Kairui off-list, 48-bits VA kernel can not handle flipped
> mm yet. So introducing [4/4], which judges whether the kernel is with
> flipped mm layout and adopt different formula accordingly.
>
> As for [1-3/4], they are the same as [1-3/3] in V2.
>
> v1 -> v2
> Fix broken patch [2/3] in v1
> Move arch_scan_vmcoreinfo declaration to util_lib/include/elf_info.h
> Using UINT64_MAX instread of 0xffffffffffffffff
>
>
> Cc: Kairui Song <kasong at tencent.com>
> Cc: Simon Horman <horms at verge.net.au>
> Cc: Philipp Rudo <prudo at redhat.com>
> To: kexec at lists.infradead.org
> *** BLURB HERE ***
>
> Kairui Song (1):
>   arm64: fix PAGE_OFFSET calc for flipped mm
>
> Pingfan Liu (3):
>   arm64: make phys_offset signed
>   arm64/crashdump: unify routine to get page_offset
>   arm64: read VA_BITS from kcore for 52-bits VA kernel
>
>  kexec/arch/arm64/crashdump-arm64.c | 23 +-----------
>  kexec/arch/arm64/kexec-arm64.c     | 60 ++++++++++++++++++++++++------
>  kexec/arch/arm64/kexec-arm64.h     |  3 +-
>  util_lib/elf_info.c                |  7 +++-
>  util_lib/include/elf_info.h        |  3 +-
>  5 files changed, 60 insertions(+), 36 deletions(-)
>
> --
> 2.31.1
>