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Diffstat (limited to 'arch/mips/kvm/00README.txt')
| -rw-r--r-- | arch/mips/kvm/00README.txt | 31 |
1 files changed, 0 insertions, 31 deletions
diff --git a/arch/mips/kvm/00README.txt b/arch/mips/kvm/00README.txt deleted file mode 100644 index 51617e481aa3..000000000000 --- a/arch/mips/kvm/00README.txt +++ /dev/null @@ -1,31 +0,0 @@ -KVM/MIPS Trap & Emulate Release Notes -===================================== - -(1) KVM/MIPS should support MIPS32R2 and beyond. It has been tested on the following platforms: - Malta Board with FPGA based 34K - Sigma Designs TangoX board with a 24K based 8654 SoC. - Malta Board with 74K @ 1GHz - -(2) Both Guest kernel and Guest Userspace execute in UM. - Guest User address space: 0x00000000 -> 0x40000000 - Guest Kernel Unmapped: 0x40000000 -> 0x60000000 - Guest Kernel Mapped: 0x60000000 -> 0x80000000 - - Guest Usermode virtual memory is limited to 1GB. - -(2) 16K Page Sizes: Both Host Kernel and Guest Kernel should have the same page size, currently at least 16K. - Note that due to cache aliasing issues, 4K page sizes are NOT supported. - -(3) No HugeTLB Support - Both the host kernel and Guest kernel should have the page size set to 16K. - This will be implemented in a future release. - -(4) KVM/MIPS does not have support for SMP Guests - Linux-3.7-rc2 based SMP guest hangs due to the following code sequence in the generated TLB handlers: - LL/TLBP/SC. Since the TLBP instruction causes a trap the reservation gets cleared - when we ERET back to the guest. This causes the guest to hang in an infinite loop. - This will be fixed in a future release. - -(5) Use Host FPU - Currently KVM/MIPS emulates a 24K CPU without a FPU. - This will be fixed in a future release |