KVM: MIPS: Fix VPN2_MASK definition for variable cpu_vmbits
If a CPU support more than 32bit vmbits (which is true for 64bit CPUs), VPN2_MASK set to fixed 0xffffe000 will lead to a wrong EntryHi in some functions such as _kvm_mips_host_tlb_inv(). The cpu_vmbits definition of 32bit CPU in cpu-features.h is 31, so we still use the old definition. Cc: Stable <stable@vger.kernel.org> Reviewed-by: Aleksandar Markovic <aleksandar.qemu.devel@gmail.com> Signed-off-by: Xing Li <lixing@loongson.cn> [Huacai: Improve commit messages] Signed-off-by: Huacai Chen <chenhc@lemote.com> Message-Id: <1590220602-3547-3-git-send-email-chenhc@lemote.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
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@ -276,7 +276,11 @@ enum emulation_result {
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#define MIPS3_PG_SHIFT 6
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#define MIPS3_PG_FRAME 0x3fffffc0
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#if defined(CONFIG_64BIT)
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#define VPN2_MASK GENMASK(cpu_vmbits - 1, 13)
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#else
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#define VPN2_MASK 0xffffe000
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#endif
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#define KVM_ENTRYHI_ASID cpu_asid_mask(&boot_cpu_data)
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#define TLB_IS_GLOBAL(x) ((x).tlb_lo[0] & (x).tlb_lo[1] & ENTRYLO_G)
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#define TLB_VPN2(x) ((x).tlb_hi & VPN2_MASK)
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