[Xen-ia64-devel] [PATCH] XEN: Avoid double reclaim dom0 image and dom0 initrd

["Xu, Anthony" <anthony.xu@xxxxxxxxx>]

VMM doesn't need to reclaim dom0 image and dom0 initrd by using 
init_domheap_pages, because they have been reclaimed by below code:
in function start_kernel of xensetup.c
    efi_memmap_walk(filter_rsvd_memory, init_boot_pages);
Reclaiming again may cause xen hang at very beginning.

BTW, dom0 initrd is for dom0 not for xen, it will be copied into dom0 
memory space, so VMM doesn't need to reserve memory for dom0 initrd.
Commenting below definition makes dom0 initrd reclaimable.
-#define CONFIG_BLK_DEV_INITRD // needed to reserve memory for domain0
+//#define CONFIG_BLK_DEV_INITRD // needed to reserve memory for domain0

Signed-off-by: Anthony Xu <anthony.xu@xxxxxxxxx>

Thanks,
-Anthony

Attachment: avoid_double_mem_reclaim.patch
Description: avoid_double_mem_reclaim.patch

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