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x86/boot: Split kernel resources setup into the setup_kernel_resources() helper function

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Makes setup_arch() a bit easier to comprehend.

No functional changes.

Signed-off-by: Mike Rapoport (Microsoft) <rppt@kernel.org>
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Link: https://lore.kernel.org/r/20250214090651.3331663-3-rppt@kernel.org
This commit is contained in:
Mike Rapoport (Microsoft) 2025-02-14 11:06:49 +02:00 committed by Ingo Molnar
parent 2d6bff3139
commit 297fb82eba
1 changed files with 22 additions and 14 deletions
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36
arch/x86/kernel/setup.c
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@ -527,6 +527,23 @@ void __init reserve_standard_io_resources(void)
}
static void __init setup_kernel_resources(void)
{
code_resource.start = __pa_symbol(_text);
code_resource.end = __pa_symbol(_etext)-1;
rodata_resource.start = __pa_symbol(__start_rodata);
rodata_resource.end = __pa_symbol(__end_rodata)-1;
data_resource.start = __pa_symbol(_sdata);
data_resource.end = __pa_symbol(_edata)-1;
bss_resource.start = __pa_symbol(__bss_start);
bss_resource.end = __pa_symbol(__bss_stop)-1;
insert_resource(&iomem_resource, &code_resource);
insert_resource(&iomem_resource, &rodata_resource);
insert_resource(&iomem_resource, &data_resource);
insert_resource(&iomem_resource, &bss_resource);
}
static bool __init snb_gfx_workaround_needed(void)
{
#ifdef CONFIG_PCI
@ -845,15 +862,6 @@ void __init setup_arch(char **cmdline_p)
root_mountflags &= ~MS_RDONLY;
setup_initial_init_mm(_text, _etext, _edata, (void *)_brk_end);
code_resource.start = __pa_symbol(_text);
code_resource.end = __pa_symbol(_etext)-1;
rodata_resource.start = __pa_symbol(__start_rodata);
rodata_resource.end = __pa_symbol(__end_rodata)-1;
data_resource.start = __pa_symbol(_sdata);
data_resource.end = __pa_symbol(_edata)-1;
bss_resource.start = __pa_symbol(__bss_start);
bss_resource.end = __pa_symbol(__bss_stop)-1;
/*
* x86_configure_nx() is called before parse_early_param() to detect
* whether hardware doesn't support NX (so that the early EHCI debug
@ -897,11 +905,11 @@ void __init setup_arch(char **cmdline_p)
tsc_early_init();
x86_init.resources.probe_roms();
/* after parse_early_param, so could debug it */
insert_resource(&iomem_resource, &code_resource);
insert_resource(&iomem_resource, &rodata_resource);
insert_resource(&iomem_resource, &data_resource);
insert_resource(&iomem_resource, &bss_resource);
/*
* Add resources for kernel text and data to the iomem_resource.
* Do it after parse_early_param, so it can be debugged.
*/
setup_kernel_resources();
e820_add_kernel_range();
trim_bios_range();