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arm64: Fix page boundary check when hot onlining

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During page online callback, the physical address of the
page is checked if it is within the RAM end boundary set by
the bootloader. The current check is broken as it misses
to online the last PFN, thereby making this page being reserved
all the time. Fix this broken check.

Change-Id: I36ed5ae3f3ed0f199dacd394358690761ddcd80c
Signed-off-by: Sudarshan Rajagopalan <sudaraja@codeaurora.org>
This commit is contained in:
Sudarshan Rajagopalan 2018-07-27 13:15:57 -07:00 committed by Swathi Sridhar
parent dc11b75f80
commit 1c21ebac5b
1 changed files with 1 additions and 1 deletions
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2
arch/arm64/mm/init.c
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@ -871,7 +871,7 @@ static int arm64_online_page(struct page *page)
{
unsigned long phy_addr = page_to_phys(page);
if (phy_addr + PAGE_SIZE >= bootloader_memory_limit)
if (phy_addr + PAGE_SIZE > bootloader_memory_limit)
return -EINVAL;
__online_page_set_limits(page);