MIPS: Print GuestCtl1 on machine check exception (4b62fad5) · Commits · 戴 / test

The GuestCtl1 CP0 register can contain the GuestID used for root TLB operations, which affects TLB matching. The other TLB registers are already dumped out to the log on a machine check exception due to multiple matching TLB entries, so also dump the value of the GuestCtl1 register if GuestIDs are supported. Signed-off-by:

James Hogan <james.hogan@imgtec.com> Cc: linux-mips@linux-mips.org Patchwork: https://patchwork.linux-mips.org/patch/13232/ Signed-off-by:

Ralf Baechle <ralf@linux-mips.org>

arch/mips/lib/dump_tlb.c

+2 −0

Original line number	Original line	Diff line number	Diff line
	@@ -19,6 +19,8 @@ void dump_tlb_regs(void)

	pr_info("Index : %0x\n", read_c0_index());		pr_info("Index : %0x\n", read_c0_index());
	pr_info("PageMask : %0x\n", read_c0_pagemask());		pr_info("PageMask : %0x\n", read_c0_pagemask());
			if (cpu_has_guestid)
			pr_info("GuestCtl1: %0x\n", read_c0_guestctl1());
	pr_info("EntryHi : %0*lx\n", field, read_c0_entryhi());		pr_info("EntryHi : %0*lx\n", field, read_c0_entryhi());
	pr_info("EntryLo0 : %0*lx\n", field, read_c0_entrylo0());		pr_info("EntryLo0 : %0*lx\n", field, read_c0_entrylo0());
	pr_info("EntryLo1 : %0*lx\n", field, read_c0_entrylo1());		pr_info("EntryLo1 : %0*lx\n", field, read_c0_entrylo1());

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