From 49bb96003fb19b77a0116d9330bdfd61aa41244b Mon Sep 17 00:00:00 2001 From: Huacai Chen Date: Sat, 23 May 2020 15:56:35 +0800 Subject: 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 Signed-off-by: Huacai Chen Co-developed-by: Jiaxun Yang Message-Id: <1590220602-3547-9-git-send-email-chenhc@lemote.com> Signed-off-by: Paolo Bonzini --- arch/mips/kvm/vz.c | 8 ++++++-- 1 file changed, 6 insertions(+), 2 deletions(-) (limited to 'arch/mips/kvm/vz.c') diff --git a/arch/mips/kvm/vz.c b/arch/mips/kvm/vz.c index 6e62154ed09b..20f69855f164 100644 --- a/arch/mips/kvm/vz.c +++ b/arch/mips/kvm/vz.c @@ -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) - set_c0_guestctl0ext(MIPS_GCTL0EXT_CGI); + 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); -- cgit v1.2.3