[PATCH v7 1/3] efi/x86: Fix EFI memory map corruption with kexec

[Borislav Petkov]

On Mon, Jun 03, 2024 at 12:05:45PM -0500, Kalra, Ashish wrote:
> Re-sending this, last response got garbled.

And this got linewrapped.

Thunderbird section in Documentation/process/email-clients.rst.

> index f0cc00032751..6f398c59278a 100644
> --- a/arch/x86/platform/efi/quirks.c
> +++ b/arch/x86/platform/efi/quirks.c
> @@ -255,15 +255,39 @@ void __init efi_arch_mem_reserve(phys_addr_t addr, u64
> size)

^^^

>         struct efi_memory_map_data data = { 0 };
>         struct efi_mem_range mr;
>         efi_memory_desc_t md;
> -       int num_entries;
> +       int num_entries, ret;
>         void *new;
> 
> -       if (efi_mem_desc_lookup(addr, &md) ||
> -           md.type != EFI_BOOT_SERVICES_DATA) {
> +       /*
> +        * efi_mem_reserve() is used to reserve boot service memory, eg.
> bgrt,

^^^

-- 
Regards/Gruss,
    Boris.

https://people.kernel.org/tglx/notes-about-netiquette