On Sat, Dec 2, 2023 at 8:46 PM Simon Horman <horms@xxxxxxxxxx> wrote:
>
> On Sat, Dec 02, 2023 at 08:30:27PM +0800, Huacai Chen wrote:
> > On Sat, Dec 2, 2023 at 6:11 PM WANG Rui <wangrui@xxxxxxxxxxx> wrote:
> > >
> > > > On Fri, Nov 24, 2023 at 11:46:58PM +0800, WANG Rui wrote:
> > > > > Currently, kexec loads vmlinux.efi to address 0 instead of the link
> > > > > address. This causes kexec to fail to boot the new vmlinux.efi on qemu.
> > > > >
> > > > > pei_loongarch_load: kernel_segment: 0000000000000000
> > > > > pei_loongarch_load: kernel_entry: 00000000015dc000
> > > > > pei_loongarch_load: image_size: 0000000001f30000
> > > > > pei_loongarch_load: text_offset: 0000000000200000
> > > > > pei_loongarch_load: phys_offset: 0000000000000000
> > > > > pei_loongarch_load: PE format: yes
> > > > > loongarch_load_other_segments:333: command_line: kexec console=ttyS0,115200
> > > > > kexec_load: entry = 0x15dc000 flags = 0x1020000
> > > > > nr_segments = 2
> > > > > segment[0].buf = 0x7fffef664010
> > > > > segment[0].bufsz = 0x1de9a00
> > > > > segment[0].mem = (nil)
> > > > > segment[0].memsz = 0x1f30000
> > > > > segment[1].buf = 0x555555e480b0
> > > > > segment[1].bufsz = 0x200
> > > > > segment[1].mem = 0x1f30000
> > > > > segment[1].memsz = 0x4000
> > > > >
> > > > > This patch adds `text_offset` when adding kernel segment to load
> > > > > vmlinux.efi to the link address.
> > > > >
> > > > > pei_loongarch_load: kernel_segment: 0000000000000000
> > > > > pei_loongarch_load: kernel_entry: 00000000015dc000
> > > > > pei_loongarch_load: image_size: 0000000001f30000
> > > > > pei_loongarch_load: text_offset: 0000000000200000
> > > > > pei_loongarch_load: phys_offset: 0000000000000000
> > > > > pei_loongarch_load: PE format: yes
> > > > > loongarch_load_other_segments:335: command_line: kexec console=ttyS0,115200
> > > > > kexec_load: entry = 0x15dc000 flags = 0x1020000
> > > > > nr_segments = 2
> > > > > segment[0].buf = 0x7ffff1a04010
> > > > > segment[0].bufsz = 0x1de9a00
> > > > > segment[0].mem = 0x200000
> > > > > segment[0].memsz = 0x1f30000
> > > > > segment[1].buf = 0x555555b28098
> > > > > segment[1].bufsz = 0x200
> > > > > segment[1].mem = 0x2130000
> > > > > segment[1].memsz = 0x4000
> > > > >
> > > > > Signed-off-by: WANG Rui <wangrui@xxxxxxxxxxx>
> > > >
> > > > Thanks, applied.
> > >
> > > Hi Simon,
> > >
> > > The patch v1 breaks the real machine. Could you please revert it and just keep v2? Thanks.
> > Hmmm, if possible, I suggest resetting the old commit before v1 and
> > only apply v2... The current status makes the history very very
> > confusing.
>
> Thanks, I would rather not drop patches from the tree as it changes
> the hashes of the tree from that point. However, in this case, I agree
> that a simple revert makes things confusing, so I have done as you suggest
> - v1 has been dropped from the tree.
>
> Can you please check that the tree as of the following commit, which is
> now the HEAD commit of the main branch, is correct?
>
> 549466430ae6 ("LoongArch: Load vmlinux.efi to the link address")
Thank you, it is perfect now.
Huacai
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