kernel.git/arch/arm/kvm/emulate.c, branch linux-4.7.y

ARM: KVM: Move GP registers into the CPU context structure

2016-02-29T18:34:12Z

Continuing our rework of the CPU context, we now move the GP registers into the CPU context structure. Reviewed-by: Christoffer Dall Signed-off-by: Marc Zyngier

ARM: KVM: Move CP15 array into the CPU context structure

2016-02-29T18:34:12Z

Continuing our rework of the CPU context, we now move the CP15 array into the CPU context structure. As this causes quite a bit of churn, we introduce the vcpu_cp15() macro that abstract the location of the actual array. This will probably help next time we have to revisit that code. Reviewed-by: Christoffer Dall Signed-off-by: Marc Zyngier

ARM: KVM: Cleanup exception injection

2015-12-18T10:14:54Z

David Binderman reported that the exception injection code had a couple of unused variables lingering around. Upon examination, it looked like this code could do with an anticipated spring cleaning, which amounts to deduplicating the CPSR/SPSR update, and making it look a bit more like the architecture spec. The spurious variables are removed in the process. Reported-by: David Binderman Reviewed-by: Christoffer Dall Signed-off-by: Marc Zyngier

KVM: ARM: Fix typo in comments of inject_abt()

2013-10-02T16:29:19Z

Very minor typo in comments of inject_abt() when we update fault status register for injecting prefetch abort. Signed-off-by: Anup Patel Signed-off-by: Pranavkumar Sawargaonkar Signed-off-by: Christoffer Dall

ARM: KVM: move kvm_handle_wfi to handle_exit.c

2013-03-06T23:48:45Z

It has little to do in emulate.c these days... Signed-off-by: Marc Zyngier

ARM: KVM: move kvm_condition_valid to emulate.c

2013-03-06T23:48:43Z

This is really hardware emulation, and as such it better be with its little friends. Signed-off-by: Marc Zyngier

ARM: KVM: convert GP registers from u32 to unsigned long

2013-03-06T23:48:42Z

On 32bit ARM, unsigned long is guaranteed to be a 32bit quantity. On 64bit ARM, it is a 64bit quantity. In order to be able to share code between the two architectures, convert the registers to be unsigned long, so the core code can be oblivious of the change. Signed-off-by: Marc Zyngier

KVM: ARM: Emulation framework and CP15 emulation

2013-01-23T18:29:13Z

Adds a new important function in the main KVM/ARM code called handle_exit() which is called from kvm_arch_vcpu_ioctl_run() on returns from guest execution. This function examines the Hyp-Syndrome-Register (HSR), which contains information telling KVM what caused the exit from the guest. Some of the reasons for an exit are CP15 accesses, which are not allowed from the guest and this commit handles these exits by emulating the intended operation in software and skipping the guest instruction. Minor notes about the coproc register reset: 1) We reserve a value of 0 as an invalid cp15 offset, to catch bugs in our table, at cost of 4 bytes per vcpu. 2) Added comments on the table indicating how we handle each register, for simplicity of understanding. Reviewed-by: Will Deacon Reviewed-by: Marcelo Tosatti Signed-off-by: Rusty Russell Signed-off-by: Christoffer Dall

KVM: ARM: Initial skeleton to compile KVM support

2013-01-23T18:29:10Z

Targets KVM support for Cortex A-15 processors. Contains all the framework components, make files, header files, some tracing functionality, and basic user space API. Only supported core is Cortex-A15 for now. Most functionality is in arch/arm/kvm/* or arch/arm/include/asm/kvm_*.h. Reviewed-by: Will Deacon Reviewed-by: Marcelo Tosatti Signed-off-by: Rusty Russell Signed-off-by: Marc Zyngier Signed-off-by: Christoffer Dall