diff options
| author | Jiaxun Yang <jiaxun.yang@flygoat.com> | 2020-07-10 08:30:18 +0200 |
|---|---|---|
| committer | Paolo Bonzini <pbonzini@redhat.com> | 2020-07-10 09:15:39 +0200 |
| commit | 6627a72c46352220bcd71a1cffeb61e5f57c65a5 (patch) | |
| tree | 4b49313f8f0206dced52f74d73c871a88a1dd2d9 /arch/mips/kvm | |
| parent | MIPS: KVM: Limit Trap-and-Emulate to MIPS32R2 only (diff) | |
| download | linux-6627a72c46352220bcd71a1cffeb61e5f57c65a5.tar.xz linux-6627a72c46352220bcd71a1cffeb61e5f57c65a5.zip | |
MIPS: KVM: Remove outdated README
This file was created long ago and information inside is
obviously outdated.
Signed-off-by: Jiaxun Yang <jiaxun.yang@flygoat.com>
Message-Id: <20200710063047.154611-4-jiaxun.yang@flygoat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Diffstat (limited to 'arch/mips/kvm')
| -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 |