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Commit a68c33f3 authored by Anton Blanchard's avatar Anton Blanchard Committed by Benjamin Herrenschmidt
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powerpc: Fix endian issues in power7/8 machine check handler 



The SLB save area is shared with the hypervisor and is defined
as big endian, so we need to byte swap on little endian builds.

Signed-off-by: default avatarAnton Blanchard <anton@samba.org>
Signed-off-by: default avatarBenjamin Herrenschmidt <benh@kernel.crashing.org>
parent d0847757

arch/powerpc/kernel/mce_power.c

+3 −3
Original line number Diff line number Diff line
@@ -50,12 +50,12 @@ static void flush_and_reload_slb(void) 
	if (!slb)

		return;



	n = min_t(u32, slb->persistent, SLB_MIN_SIZE);

	n = min_t(u32, be32_to_cpu(slb->persistent), SLB_MIN_SIZE);



	/* Load up the SLB entries from shadow SLB */

	for (i = 0; i < n; i++) {

		unsigned long rb = slb->save_area[i].esid;

		unsigned long rs = slb->save_area[i].vsid;

		unsigned long rb = be64_to_cpu(slb->save_area[i].esid);

		unsigned long rs = be64_to_cpu(slb->save_area[i].vsid);



		rb = (rb & ~0xFFFul) | i;

		asm volatile("slbmte %0,%1" : : "r" (rs), "r" (rb));