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authorJiaxun Yang <jiaxun.yang@flygoat.com>2020-07-10 14:30:17 +0800
committerPaolo Bonzini <pbonzini@redhat.com>2020-07-10 03:15:38 -0400
commit01edc5e76ecfecf9a79eec2658f6146ef47bc816 (patch)
tree901e83add6f5df635abd85c4452d380d2361f385 /arch/mips/kvm
parent380f3a8b6360442508321026f9dc7f8507a7f526 (diff)
MIPS: KVM: Limit Trap-and-Emulate to MIPS32R2 only
After tons of fixes to get Trap-and-Emulate build on Loongson64, I've got panic on host machine when trying to run a VM. I found that it can never work on 64bit systems. Revewing the code, it looks like R6 can't supportrd by TE as well. Signed-off-by: Jiaxun Yang <jiaxun.yang@flygoat.com> Message-Id: <20200710063047.154611-3-jiaxun.yang@flygoat.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Diffstat (limited to 'arch/mips/kvm')
-rw-r--r--arch/mips/kvm/Kconfig3
1 files changed, 2 insertions, 1 deletions
diff --git a/arch/mips/kvm/Kconfig b/arch/mips/kvm/Kconfig
index 2bf02d849a3a..032b3fca6cbb 100644
--- a/arch/mips/kvm/Kconfig
+++ b/arch/mips/kvm/Kconfig
@@ -37,10 +37,11 @@ choice
config KVM_MIPS_TE
bool "Trap & Emulate"
+ depends on CPU_MIPS32_R2
help
Use trap and emulate to virtualize 32-bit guests in user mode. This
does not require any special hardware Virtualization support beyond
- standard MIPS32/64 r2 or later, but it does require the guest kernel
+ standard MIPS32 r2 or later, but it does require the guest kernel
to be configured with CONFIG_KVM_GUEST=y so that it resides in the
user address segment.