Add basic MIPS KVM support for 64-bit host kernels, primarily to prepare
for VZ support on MIPS64 processors. Note, this does not allow 64-bit
guests to be supported. This patchset is based on my recent r6 support
patchset.
Patches 1-11 fix various distinct parts of KVM MIPS that aren't portable
to a 64-bit host kernel, and patch 12 allows KVM to be enabled on such
kernels.
Only patches 1 & 12 touch anything outside of MIPS KVM. Patch 1 in
particular needs some imput from general MIPS folk.
James Hogan (12):
MIPS: Fix definition of KSEGX() for 64-bit
MIPS: KVM: Use virt_to_phys() to get commpage PFN
MIPS: KVM: Use kmap instead of CKSEG0ADDR()
MIPS: KVM: Make entry code MIPS64 friendly
MIPS: KVM: Set CP0_Status.KX on MIPS64
MIPS: KVM: Use 64-bit CP0_EBase when appropriate
MIPS: KVM: Fail if ebase doesn't fit in CP0_EBase
MIPS: KVM: Fix 64-bit big endian dynamic translation
MIPS: KVM: Sign extend MFC0/RDHWR results
MIPS: KVM: Fix ptr->int cast via KVM_GUEST_KSEGX()
MIPS: KVM: Reset CP0_PageMask during host TLB flush
MIPS: Select HAVE_KVM for MIPS64_R{2,6}
arch/mips/Kconfig | 2 +
arch/mips/include/asm/addrspace.h | 2 +-
arch/mips/kvm/dyntrans.c | 27 +++++++++----
arch/mips/kvm/emulate.c | 7 ++--
arch/mips/kvm/entry.c | 83 +++++++++++++++++++++++++--------------
arch/mips/kvm/mips.c | 12 ++++++
arch/mips/kvm/mmu.c | 7 +++-
arch/mips/kvm/tlb.c | 4 +-
8 files changed, 102 insertions(+), 42 deletions(-)
Cc: Paolo Bonzini <pbonzini@xxxxxxxxxx>
Cc: "Radim Krčmář" <rkrcmar@xxxxxxxxxx>
Cc: Ralf Baechle <ralf@xxxxxxxxxxxxxx>
Cc: Maciej W. Rozycki <macro@xxxxxxxxxxxxxx>
Cc: linux-mips@xxxxxxxxxxxxxx
Cc: kvm@xxxxxxxxxxxxxxx
--
2.4.10
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