Commit 49bb9600 authored May 23, 2020 by Huacai Chen Committed by Paolo Bonzini Jun 04, 2020

KVM: MIPS: Let indexed cacheops cause guest exit on Loongson-3



Loongson-3's indexed cache operations need a node-id in the address,
but in KVM guest the node-id may be incorrect. So, let indexed cache
operations cause guest exit on Loongson-3.

Reviewed-by: Aleksandar Markovic <aleksandar.qemu.devel@gmail.com>
Signed-off-by: Huacai Chen <chenhc@lemote.com>
Co-developed-by: Jiaxun Yang <jiaxun.yang@flygoat.com>
Message-Id: <1590220602-3547-9-git-send-email-chenhc@lemote.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>

parent 52c07e1c

arch/mips/kvm/vz.c

+6 −2

Original line number	Diff line number	Diff line
		@@ -2853,8 +2853,12 @@ static int kvm_vz_hardware_enable(void)
		write_c0_guestctl0(MIPS_GCTL0_CP0 \|
		(MIPS_GCTL0_AT_GUEST << MIPS_GCTL0_AT_SHIFT) \|
		MIPS_GCTL0_CG \| MIPS_GCTL0_CF);
		if (cpu_has_guestctl0ext)
		if (cpu_has_guestctl0ext) {
		if (current_cpu_type() != CPU_LOONGSON64)
		set_c0_guestctl0ext(MIPS_GCTL0EXT_CGI);
		else
		clear_c0_guestctl0ext(MIPS_GCTL0EXT_CGI);
		}

		if (cpu_has_guestid) {
		write_c0_guestctl1(0);

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