linux-stable.git/arch/mips/kvm, branch linux-3.13.y

kvm: Add struct kvm arg to memslot APIs

2013-10-17T13:49:23+00:00

We will use that in the later patch to find the kvm ops handler

Signed-off-by: Aneesh Kumar K.V 
Signed-off-by: Alexander Graf

Merge branch 'next' of git://git.kernel.org/pub/scm/virt/kvm/kvm

2013-09-05T01:15:06+00:00

Pull KVM updates from Gleb Natapov:
 "The highlights of the release are nested EPT and pv-ticketlocks
  support (hypervisor part, guest part, which is most of the code, goes
  through tip tree).  Apart of that there are many fixes for all arches"

Fix up semantic conflicts as discussed in the pull request thread..

* 'next' of git://git.kernel.org/pub/scm/virt/kvm/kvm: (88 commits)
  ARM: KVM: Add newlines to panic strings
  ARM: KVM: Work around older compiler bug
  ARM: KVM: Simplify tracepoint text
  ARM: KVM: Fix kvm_set_pte assignment
  ARM: KVM: vgic: Bump VGIC_NR_IRQS to 256
  ARM: KVM: Bugfix: vgic_bytemap_get_reg per cpu regs
  ARM: KVM: vgic: fix GICD_ICFGRn access
  ARM: KVM: vgic: simplify vgic_get_target_reg
  KVM: MMU: remove unused parameter
  KVM: PPC: Book3S PR: Rework kvmppc_mmu_book3s_64_xlate()
  KVM: PPC: Book3S PR: Make instruction fetch fallback work for system calls
  KVM: PPC: Book3S PR: Don't corrupt guest state when kernel uses VMX
  KVM: x86: update masterclock when kvmclock_offset is calculated (v2)
  KVM: PPC: Book3S: Fix compile error in XICS emulation
  KVM: PPC: Book3S PR: return appropriate error when allocation fails
  arch: powerpc: kvm: add signed type cast for comparation
  KVM: x86: add comments where MMIO does not return to the emulator
  KVM: vmx: count exits to userspace during invalid guest emulation
  KVM: rename __kvm_io_bus_sort_cmp to kvm_io_bus_cmp
  kvm: optimize away THP checks in kvm_is_mmio_pfn()
  ...

mips/kvm: Make kvm_locore.S 64-bit buildable/safe.

2013-08-26T09:30:49+00:00

We need to use more of the Macros in asm.h to allow kvm_locore.S to
build in a 64-bit kernel.

For 32-bit there is no change in the generated object code.

Signed-off-by: David Daney 
Acked-by: Ralf Baechle 
Acked-by: Paolo Bonzini 
Signed-off-by: Gleb Natapov

mips/kvm: Cleanup .push/.pop directives in kvm_locore.S

2013-08-26T09:30:39+00:00

There are:
	.set	push
	.set	noreorder
	.set	noat
	 .
	 .
	 .
	.set	pop

Sequences all over the place in this file, but in some places the
final ".set pop" is erroneously converted to ".set push", so none of
these really do what they appear to.

Clean up the whole mess by moving ".set noreorder", ".set noat" to the
top, and get rid of everything else.

Generated object code is unchanged.

Signed-off-by: David Daney 
Acked-by: Paolo Bonzini 
Signed-off-by: Gleb Natapov

mips/kvm: Improve code formatting in arch/mips/kvm/kvm_locore.S

2013-08-26T09:30:24+00:00

No code changes, just reflowing some comments and consistently using
tabs and spaces.  Object code is verified to be unchanged.

Signed-off-by: David Daney 
Acked-by: Ralf Baechle 
Acked-by: Paolo Bonzini 
Reviewed-by: James Hogan 
Signed-off-by: Gleb Natapov

MIPS: kvm: Kconfig: Drop HAVE_KVM dependency from VIRTUALIZATION

2013-07-19T10:45:57+00:00

Virtualization does not always need KVM capabilities so drop the
dependency. The KVM symbol already depends on HAVE_KVM.

Fixes the following problem on a randconfig:
warning: (REMOTEPROC && RPMSG) selects VIRTUALIZATION which has unmet direct
dependencies (HAVE_KVM)
warning: (REMOTEPROC && RPMSG) selects VIRTUALIZATION which has unmet
direct dependencies (HAVE_KVM)

Signed-off-by: Markos Chandras 
Acked-by: Steven J. Hill 
Cc: linux-mips@linux-mips.org
Patchwork: https://patchwork.linux-mips.org/patch/5443/
Signed-off-by: Ralf Baechle

KVM: Introduce kvm_arch_memslots_updated()

2013-07-18T10:29:25+00:00

This is called right after the memslots is updated, i.e. when the result
of update_memslots() gets installed in install_new_memslots().  Since
the memslots needs to be updated twice when we delete or move a memslot,
kvm_arch_commit_memory_region() does not correspond to this exactly.

In the following patch, x86 will use this new API to check if the mmio
generation has reached its maximum value, in which case mmio sptes need
to be flushed out.

Signed-off-by: Takuya Yoshikawa 
Acked-by: Alexander Graf 
Reviewed-by: Xiao Guangrong 
Signed-off-by: Paolo Bonzini

mips/kvm: Use KVM_REG_MIPS and proper size indicators for *_ONE_REG

2013-06-11T08:07:38+00:00

The API requires that the GET_ONE_REG and SET_ONE_REG ioctls have this
extra information encoded in the register identifiers.

Signed-off-by: David Daney 
Signed-off-by: Gleb Natapov

mips/kvm: Use ENOIOCTLCMD to indicate unimplemented ioctls.

2013-06-03T07:58:55+00:00

The Linux Way is to return -ENOIOCTLCMD to the vfs when an
unimplemented ioctl is requested.  Do this in kvm_mips instead of a
random mixture of -ENOTSUPP and -EINVAL.

Signed-off-by: David Daney 
Acked-by: Sanjay Lal 
Signed-off-by: Paolo Bonzini

mips/kvm: Fix ABI by moving manipulation of CP0 registers to KVM_{G,S}ET_ONE_REG

2013-06-03T07:58:54+00:00

Because not all 256 CP0 registers are ever implemented, we need a
different method of manipulating them.  Use the
KVM_SET_ONE_REG/KVM_GET_ONE_REG mechanism.

Now unused code and definitions are removed.

Signed-off-by: David Daney 
Acked-by: Sanjay Lal 
Signed-off-by: Paolo Bonzini