linux/arch/mips/kvm
James Hogan a8a3c42677 KVM: MIPS: Add VZ & TE capabilities
Add new KVM_CAP_MIPS_VZ and KVM_CAP_MIPS_TE capabilities, and in order
to allow MIPS KVM to support VZ without confusing old users (which
expect the trap & emulate implementation), define and start checking
KVM_CREATE_VM type codes.

The codes available are:

 - KVM_VM_MIPS_TE = 0

   This is the current value expected from the user, and will create a
   VM using trap & emulate in user mode, confined to the user mode
   address space. This may in future become unavailable if the kernel is
   only configured to support VZ, in which case the EINVAL error will be
   returned and KVM_CAP_MIPS_TE won't be available even though
   KVM_CAP_MIPS_VZ is.

 - KVM_VM_MIPS_VZ = 1

   This can be provided when the KVM_CAP_MIPS_VZ capability is available
   to create a VM using VZ, with a fully virtualized guest virtual
   address space. If VZ support is unavailable in the kernel, the EINVAL
   error will be returned (although old kernels without the
   KVM_CAP_MIPS_VZ capability may well succeed and create a trap &
   emulate VM).

This is designed to allow the desired implementation (T&E vs VZ) to be
potentially chosen at runtime rather than being fixed in the kernel
configuration.

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: linux-mips@linux-mips.org
Cc: kvm@vger.kernel.org
Cc: linux-doc@vger.kernel.org
2017-03-28 14:53:47 +01:00
..
00README.txt
callback.c MIPS: KVM: Convert EXPORT_SYMBOL to _GPL 2016-01-24 03:13:24 +01:00
commpage.c MIPS: kvm: Audit and remove any unnecessary uses of module.h 2016-10-05 01:31:20 +02:00
commpage.h MIPS: KVM: Rename files to remove the prefix "kvm_" and "kvm_mips_" 2014-06-30 16:52:03 +02:00
dyntrans.c KVM: MIPS/T&E: Use lockless GVA helpers for dyntrans 2017-02-03 15:21:12 +00:00
emulate.c KVM: MIPS/Emulate: Implement 64-bit MMIO emulation 2017-03-28 14:53:45 +01:00
entry.c KVM: MIPS: Use CP0_BadInstr[P] for emulation 2017-02-03 15:21:07 +00:00
fpu.S MIPS: KVM: Fix fpu.S misassembly with r6 2016-07-05 16:09:11 +02:00
hypcall.c KVM: MIPS: Implement HYPCALL emulation 2017-03-28 14:53:33 +01:00
interrupt.c KVM: MIPS/T&E: Implement CP0_EBase register 2017-02-03 15:21:30 +00:00
interrupt.h MIPS; KVM: Convert exception entry to uasm 2016-07-05 16:08:46 +02:00
Kconfig KVM: MIPS/MMU: Implement KVM_CAP_SYNC_MMU 2017-02-03 15:21:28 +00:00
Makefile KVM: MIPS: Implement HYPCALL emulation 2017-03-28 14:53:33 +01:00
mips.c KVM: MIPS: Add VZ & TE capabilities 2017-03-28 14:53:47 +01:00
mmu.c KVM: MIPS/MMU: Implement KVM_CAP_SYNC_MMU 2017-02-03 15:21:28 +00:00
msa.S MIPS: KVM: Add base guest MSA support 2015-03-27 21:25:19 +00:00
stats.c MIPS: KVM: Clean up kvm_exit trace event 2016-06-14 11:16:23 +02:00
tlb.c KVM: MIPS/Emulate: Use lockless GVA helpers for cache emulation 2017-02-03 15:21:15 +00:00
trace.h KVM: MIPS: Extend counters & events for VZ GExcCodes 2017-03-28 14:53:46 +01:00
trap_emul.c KVM: MIPS: Implement HYPCALL emulation 2017-03-28 14:53:33 +01:00