KVM: MIPS: Fix VPN2_MASK definition for variable cpu_vmbits
commit 5816c76dea
upstream.
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>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
5.4-rM2-2.2.x-imx-squashed
parent
94f4af1b73
commit
8c8238343f
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@ -274,7 +274,11 @@ 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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