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| author | James Hogan <james.hogan@imgtec.com> | 2017-03-14 11:15:38 +0100 |
|---|---|---|
| committer | James Hogan <james.hogan@imgtec.com> | 2017-03-28 15:53:58 +0200 |
| commit | d42a008f86ba3d715d31788fc5143a4de5685d33 (patch) | |
| tree | e8e8a3abb6b6111229af71901ec0995e375abac9 /Documentation/virtual | |
| parent | KVM: MIPS/VZ: Support guest load-linked bit (diff) | |
| download | linux-d42a008f86ba3d715d31788fc5143a4de5685d33.tar.xz linux-d42a008f86ba3d715d31788fc5143a4de5685d33.zip | |
KVM: MIPS/VZ: Emulate MAARs when necessary
Add emulation of Memory Accessibility Attribute Registers (MAARs) when
necessary. We can't actually do anything with whatever the guest
provides, but it may not be possible to clear Guest.Config5.MRP so we
have to emulate at least a pair of MAARs.
Signed-off-by: James Hogan <james.hogan@imgtec.com>
Cc: Paolo Bonzini <pbonzini@redhat.com>
Cc: "Radim Krčmář" <rkrcmar@redhat.com>
Cc: Ralf Baechle <ralf@linux-mips.org>
Cc: Jonathan Corbet <corbet@lwn.net>
Cc: Steven Rostedt <rostedt@goodmis.org>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: linux-mips@linux-mips.org
Cc: kvm@vger.kernel.org
Cc: linux-doc@vger.kernel.org
Diffstat (limited to 'Documentation/virtual')
| -rw-r--r-- | Documentation/virtual/kvm/api.txt | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/Documentation/virtual/kvm/api.txt b/Documentation/virtual/kvm/api.txt index b108238dc9dc..e601c8f01fd9 100644 --- a/Documentation/virtual/kvm/api.txt +++ b/Documentation/virtual/kvm/api.txt @@ -2114,6 +2114,7 @@ registers, find a list below: MIPS | KVM_REG_MIPS_CP0_KSCRATCH4 | 64 MIPS | KVM_REG_MIPS_CP0_KSCRATCH5 | 64 MIPS | KVM_REG_MIPS_CP0_KSCRATCH6 | 64 + MIPS | KVM_REG_MIPS_CP0_MAAR(0..63) | 64 MIPS | KVM_REG_MIPS_COUNT_CTL | 64 MIPS | KVM_REG_MIPS_COUNT_RESUME | 64 MIPS | KVM_REG_MIPS_COUNT_HZ | 64 @@ -2180,6 +2181,10 @@ hardware, host kernel, guest, and whether XPA is present in the guest, i.e. with the RI and XI bits (if they exist) in bits 63 and 62 respectively, and the PFNX field starting at bit 30. +MIPS MAARs (see KVM_REG_MIPS_CP0_MAAR(*) above) have the following id bit +patterns: + 0x7030 0000 0001 01 <reg:8> + MIPS KVM control registers (see above) have the following id bit patterns: 0x7030 0000 0002 <reg:16> |