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efi_loader: make pool allocations cacheline aligned

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This avoids printf() spam about file reads (such as loading an image)
into unaligned buffers (and the associated memcpy()).  And generally
seems like a good idea.

Signed-off-by: Rob Clark <robdclark@gmail.com>
[agraf: use __aligned]
Signed-off-by: Alexander Graf <agraf@suse.de>
This commit is contained in:
Rob Clark 2017-09-13 18:05:36 -04:00 • committed by Alexander Graf
parent 838ee4b479
commit 946160f334
1 changed files with 3 additions and 2 deletions
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5
lib/efi_loader/efi_memory.c
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@ -43,7 +43,7 @@ void *efi_bounce_buffer;
*/ */
struct efi_pool_allocation { struct efi_pool_allocation {
u64 num_pages; u64 num_pages;
char data[]; char data[] __aligned(ARCH_DMA_MINALIGN);
}; };
/* /*
@ -356,7 +356,8 @@ efi_status_t efi_allocate_pool(int pool_type, unsigned long size,
{ {
efi_status_t r; efi_status_t r;
efi_physical_addr_t t; efi_physical_addr_t t;
u64 num_pages = (size + sizeof(u64) + EFI_PAGE_MASK) >> EFI_PAGE_SHIFT; u64 num_pages = (size + sizeof(struct efi_pool_allocation) +
EFI_PAGE_MASK) >> EFI_PAGE_SHIFT;
if (size == 0) { if (size == 0) {
*buffer = NULL; *buffer = NULL;