[PATCH v3 0/2] x86/setup: consolidate early memory reservations

[Mike Rapoport]

From: Mike Rapoport <rppt@xxxxxxxxxxxxx>

Hi,

David noticed that we do some of memblock_reserve() calls after allocations
are possible:

https://lore.kernel.org/lkml/6ba6bde3-1520-5cd0-f987-32d543f0b79f@xxxxxxxxxx

The below patches consolidate early memory reservations done during
setup_arch() so that memory used by firmware, bootloader, kernel text/data
and the memory that should be excluded from the available memory for
whatever other reason is reserved before memblock allocations are possible.

The patches are rebased on v5.12-rc1 and I think x86 tree is the best way
to merge them.

v3:
* rebase on v5.12-rc1

v2: https://lore.kernel.org/lkml/20210128105711.10428-1-rppt@xxxxxxxxxx
* get rid of trim_platform_memory_ranges() and call trim_snb_memory()
  directly, per Boris comments
* massage changelog and comments to use passive voice, per Boris
* add Acked-by and Reviewed-by, thanks Boris and David

v1: https://lore.kernel.org/lkml/20210115083255.12744-1-rppt@xxxxxxxxxx

Mike Rapoport (2):
  x86/setup: consolidate early memory reservations
  x86/setup: merge several reservations of start of the memory

 arch/x86/kernel/setup.c | 95 ++++++++++++++++++++---------------------
 1 file changed, 46 insertions(+), 49 deletions(-)

-- 
2.28.0