Differential D9904 Diff 26023 sys/boot/efi/loader/copy.c

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sys/boot/efi/loader/copy.c

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	UINT32 dver;	UINT32 dver;
	EFI_STATUS status;	EFI_STATUS status;
	int i, ndesc;	int i, ndesc;
	unsigned long available_pages;	unsigned long available_pages = 0;

	sz = 0;	sz = 0;
	status = BS->GetMemoryMap(&sz, 0, &key, &dsz, &dver);	status = BS->GetMemoryMap(&sz, 0, &key, &dsz, &dver);
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	}	}

	ndesc = sz / dsz;	ndesc = sz / dsz;

	for (i = 0, p = map; i < ndesc;	for (i = 0, p = map; i < ndesc;
	i++, p = NextMemoryDescriptor(p, dsz)) {	i++, p = NextMemoryDescriptor(p, dsz)) {
	start = p->PhysicalStart;	start = p->PhysicalStart;
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	continue;	continue;

	if (p->Type != EfiConventionalMemory)	if (p->Type != EfiConventionalMemory)
	continue;	printf("Warning: wrong EFI memory type: %d\n",
		p->Type);

	available_pages = p->NumberOfPages -	available_pages = p->NumberOfPages -
	((KERNEL_PHYSICAL_BASE - start) >> EFI_PAGE_SHIFT);	((KERNEL_PHYSICAL_BASE - start) >> EFI_PAGE_SHIFT);
		break;
		}

		if (available_pages == 0) {
		printf("Can't find valid memory map for staging area!\n");
		goto out;
		}

	if (*nr_pages > available_pages) {	for ( ; i < ndesc;
	printf("staging area size is reduced: %ld -> %ld!\n",	i++, p = NextMemoryDescriptor(p, dsz)) {
	*nr_pages, available_pages);	if (p->Type != EfiConventionalMemory &&
	*nr_pages = available_pages;	p->Type != EfiLoaderData)
	}	break;

	break;	if (p->PhysicalStart != end)
		break;

		end = p->PhysicalStart + p->NumberOfPages * EFI_PAGE_SIZE;

		available_pages += p->NumberOfPages;
	}	}

		if (*nr_pages > available_pages) {
		printf("Staging area's size is reduced: %ld -> %ld!\n",
		*nr_pages, available_pages);
		*nr_pages = available_pages;
		}
	out:	out:
	free(map);	free(map);
	}	}
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