On 06.03.2024 19:50, Jason Andryuk wrote:
> --- a/xen/arch/x86/hvm/dom0_build.c
> +++ b/xen/arch/x86/hvm/dom0_build.c
> @@ -537,6 +537,109 @@ static paddr_t __init find_memory(
> return INVALID_PADDR;
> }
>
> +static bool __init check_load_address(
> + const struct domain *d, const struct elf_binary *elf)
> +{
> + paddr_t kernel_start = (paddr_t)elf->dest_base & PAGE_MASK;
> + paddr_t kernel_end = ROUNDUP((paddr_t)elf->dest_base + elf->dest_size,
> + PAGE_SIZE);
> + unsigned int i;
> +
> + /*
> + * The memory map is sorted and all RAM regions starts and sizes are
> + * aligned to page boundaries.
> + */
> + for ( i = 0; i < d->arch.nr_e820; i++ )
> + {
> + paddr_t start = d->arch.e820[i].addr;
> + paddr_t end = d->arch.e820[i].addr + d->arch.e820[i].size;
> +
> + if ( start <= kernel_start &&
> + end >= kernel_end &&
> + d->arch.e820[i].type == E820_RAM )
> + return true;
> + }
> +
> + return false;
> +}
> +
> +/*
> + * Find an e820 RAM region that fits the kernel at a suitable alignment.
> + */
> +static paddr_t find_kernel_memory(
__init ?
Jan
