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Commit bed9a315 authored by Anton Blanchard's avatar Anton Blanchard Committed by Benjamin Herrenschmidt
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powerpc: pseries: Fix kexec on machines with more than 4TB of RAM 



On a box with 8TB of RAM the MMU hashtable is 64GB in size. That
means we have 4G PTEs. pSeries_lpar_hptab_clear was using a signed
int to store the index which will overflow at 2G.

Signed-off-by: default avatarAnton Blanchard <anton@samba.org>
Cc: <stable@kernel.org>
Acked-by: default avatarMichael Neuling <mikey@neuling.org>
Signed-off-by: default avatarBenjamin Herrenschmidt <benh@kernel.crashing.org>
parent c113a3ae

arch/powerpc/platforms/pseries/lpar.c

+1 −1
Original line number Diff line number Diff line
@@ -204,7 +204,7 @@ static void pSeries_lpar_hptab_clear(void) 
		unsigned long ptel;

	} ptes[4];

	long lpar_rc;

	int i, j;

	unsigned long i, j;



	/* Read in batches of 4,

	 * invalidate only valid entries not in the VRMA