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path: root/arch/mips/kvm/kvm_mips.c
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2013-07-18KVM: Introduce kvm_arch_memslots_updated()Takuya Yoshikawa
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 <yoshikawa_takuya_b1@lab.ntt.co.jp> Acked-by: Alexander Graf <agraf@suse.de> Reviewed-by: Xiao Guangrong <xiaoguangrong@linux.vnet.ibm.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2013-06-11mips/kvm: Use KVM_REG_MIPS and proper size indicators for *_ONE_REGDavid Daney
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 <david.daney@cavium.com> Signed-off-by: Gleb Natapov <gleb@redhat.com>
2013-06-03mips/kvm: Use ENOIOCTLCMD to indicate unimplemented ioctls.David Daney
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 <david.daney@cavium.com> Acked-by: Sanjay Lal <sanjayl@kymasys.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2013-06-03mips/kvm: Fix ABI by moving manipulation of CP0 registers to KVM_{G,S}ET_ONE_REGDavid Daney
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 <david.daney@cavium.com> Acked-by: Sanjay Lal <sanjayl@kymasys.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2013-06-03mips/kvm: Use ARRAY_SIZE() instead of hardcoded constants in ↵David Daney
kvm_arch_vcpu_ioctl_{s,g}et_regs Also we cannot set special zero register, so force it to zero. Signed-off-by: David Daney <david.daney@cavium.com> Acked-by: Sanjay Lal <sanjayl@kymasys.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2013-06-03mips/kvm: Fix name of gpr field in struct kvm_regs.David Daney
Signed-off-by: David Daney <david.daney@cavium.com> Acked-by: Sanjay Lal <sanjayl@kymasys.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2013-05-10Merge branch 'upstream' of git://git.linux-mips.org/pub/scm/ralf/upstream-linusLinus Torvalds
Pull MIPS updates from Ralf Baechle: - More work on DT support for various platforms - Various fixes that were to late to make it straight into 3.9 - Improved platform support, in particular the Netlogic XLR and BCM63xx, and the SEAD3 and Malta eval boards. - Support for several Ralink SOC families. - Complete support for the microMIPS ASE which basically reencodes the existing MIPS32/MIPS64 ISA to use non-constant size instructions. - Some fallout from LTO work which remove old cruft and will generally make the MIPS kernel easier to maintain and resistant to compiler optimization, even in absence of LTO. - KVM support. While MIPS has announced hardware virtualization extensions this KVM extension uses trap and emulate mode for virtualization of MIPS32. More KVM work to add support for VZ hardware virtualizaiton extensions and MIPS64 will probably already be merged for 3.11. Most of this has been sitting in -next for a long time. All defconfigs have been build or run time tested except three for which fixes are being sent by other maintainers. Semantic conflict with kvm updates done as per Ralf * 'upstream' of git://git.linux-mips.org/pub/scm/ralf/upstream-linus: (118 commits) MIPS: Add new GIC clockevent driver. MIPS: Formatting clean-ups for clocksources. MIPS: Refactor GIC clocksource code. MIPS: Move 'gic_frequency' to common location. MIPS: Move 'gic_present' to common location. MIPS: MIPS16e: Add unaligned access support. MIPS: MIPS16e: Support handling of delay slots. MIPS: MIPS16e: Add instruction formats. MIPS: microMIPS: Optimise 'strnlen' core library function. MIPS: microMIPS: Optimise 'strlen' core library function. MIPS: microMIPS: Optimise 'strncpy' core library function. MIPS: microMIPS: Optimise 'memset' core library function. MIPS: microMIPS: Add configuration option for microMIPS kernel. MIPS: microMIPS: Disable LL/SC and fix linker bug. MIPS: microMIPS: Add vdso support. MIPS: microMIPS: Add unaligned access support. MIPS: microMIPS: Support handling of delay slots. MIPS: microMIPS: Add support for exception handling. MIPS: microMIPS: Floating point support. MIPS: microMIPS: Fix macro naming in micro-assembler. ...
2013-05-08KVM/MIPS32: MIPS arch specific APIs for KVMSanjay Lal
- Implements the arch specific APIs for KVM, some are stubs for MIPS - kvm_mips_handle_exit(): Main 'C' distpatch routine for handling exceptions while in "Guest" mode. - Also implements in-kernel timer interrupt support for the guest. Signed-off-by: Sanjay Lal <sanjayl@kymasys.com> Cc: kvm@vger.kernel.org Cc: linux-mips@linux-mips.org Signed-off-by: Ralf Baechle <ralf@linux-mips.org>