Hello Baoquan,
On 19/08/24 11:45, Baoquan He wrote:
On 08/19/24 at 09:45am, Sourabh Jain wrote:
Hello Michael and Boaquan
On 01/08/24 12:21, Sourabh Jain wrote:
Hello Michael,
On 01/08/24 08:04, Michael Ellerman wrote:
Sourabh Jain writes:
The following errors are observed when kexec is d
On Tue, Aug 20, 2024 at 2:00 AM Jarkko Sakkinen wrote:
>
> On Mon Aug 19, 2024 at 5:53 PM EEST, Pingfan Liu wrote:
> > efi_random_alloc() demands EFI_ALLOCATE_ADDRESS when allocate_pages(),
> > but the current implement can not ensure the selected target locates
> > inside free area, that is to ex
On Mon Aug 19, 2024 at 5:53 PM EEST, Pingfan Liu wrote:
> efi_random_alloc() demands EFI_ALLOCATE_ADDRESS when allocate_pages(),
> but the current implement can not ensure the selected target locates
> inside free area, that is to exclude EFI_BOOT_SERVICES_*,
> EFI_RUNTIME_SERVICES_* etc.
>
> Fix t
On Mon, Aug 19, 2024 at 09:05:47PM +0300, Jarkko Sakkinen wrote:
> On Fri Aug 16, 2024 at 9:41 PM EEST, Matthew Garrett wrote:
> > On Fri, Aug 16, 2024 at 02:22:04PM +0300, Jarkko Sakkinen wrote:
> >
> > > For (any) non-legacy features we can choose, which choices we choose to
> > > support, and wh
On Fri Aug 16, 2024 at 9:41 PM EEST, Matthew Garrett wrote:
> On Fri, Aug 16, 2024 at 02:22:04PM +0300, Jarkko Sakkinen wrote:
>
> > For (any) non-legacy features we can choose, which choices we choose to
> > support, and which we do not. This is not an oppositive view just saying
> > how it is, an
Now, anything is ready, enable PE image loading on arm64
Signed-off-by: Pingfan Liu
Cc: Ard Biesheuvel
Cc: Mark Rutland
Cc: Will Deacon
Cc: Catalin Marinas
To: linux-arm-ker...@lists.infradead.org
---
arch/arm64/Kconfig | 4
arch/arm64/kernel/machine_kexec_file.c | 3
The emulator will run in identity mapping, and the first kernel prepares
for it. The special allocator resorts to kimage_alloc_control_pages(),
which can avoid the allocation on the spot of the destination and
overwritten during copying the kernel.
The identity mapping covers only all of the kexec
The current allocator of __create_pgd_mapping_locked() takes only one
parameter, which reflects the current level of page table.
But kexec_page_alloc() should extra control information from the
parameter kimage. In order to make kexec_page_alloc() as an allocator,
re-shape the prototype of the all
relocate_kernel will be used either to boot vmlinux directly or PE
image. In the latter case, the efi emulator needs efi_emulator_param
instead of dtb as input parameter. On the other hand, dtb is still
required to pass down through efi_emulator_param to the second kernel,
so keep kimage_arch->dtb
On arm64, when kexec switches to the new kernel, the mmu is off. So the
efi emulator should turn on the mmu to enable the identity mapping at
the first stage.
In fact, the kexec switching can run with mmu-on if it enters emulator,
but that requires the re-arrangement of the relocate_kernel.S [1].
As UEFI becomes popular, a few architectures support to boot a PE format
kernel image directly. And the internal of PE format may be different.
This introduces a new kexec_file_ops implementation, named pe_image_ops,
which prepares UEFI environment for the trampoline code 'efi emulator'.
The pe_im
efi_random_alloc() demands EFI_ALLOCATE_ADDRESS when allocate_pages(),
but the current implement can not ensure the selected target locates
inside free area, that is to exclude EFI_BOOT_SERVICES_*,
EFI_RUNTIME_SERVICES_* etc.
Fix the issue by checking md->type.
Signed-off-by: Pingfan Liu
Cc: Ard
Some uefi applications e.g systemd-stub uses more members in
efi_simple_text_output_protocol, hence extending its members as UEFI
specification.
Signed-off-by: Pingfan Liu
Cc: Ard Biesheuvel
To: linux-...@vger.kernel.org
---
drivers/firmware/efi/libstub/efistub.h | 7 +++
1 file changed, 7
*** Background ***
As more PE format kernel images are introduced, it post challenge to kexec to
cope with the new format.
In my attempt to add support for arm64 zboot image in the kernel [1],
Ard suggested using an emulator to tackle this issue. Last year, when
Jan tried to introduce UKI suppor
Add Jonathan and Andew.
On 08/12/24 at 09:46am, Sourabh Jain wrote:
> Commit 79365026f869 ("crash: add a new kexec flag for hotplug support")
> generalizes the crash hotplug support to allow architectures to update
> multiple kexec segments on CPU/Memory hotplug and not just elfcorehdr.
> Therefor
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