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2013-11-11Merge tag 'kvm-arm-for-3.13-3' of ↵Paolo Bonzini1-4/+0
git://git.linaro.org/people/cdall/linux-kvm-arm into kvm-next Updates for KVM/ARM, take 3 supporting more than 4 CPUs. Signed-off-by: Paolo Bonzini <pbonzini@redhat.com> Conflicts: arch/arm/kvm/reset.c [cpu_reset->reset_regs change; context only]
2013-10-22ARM: KVM: drop limitation to 4 CPU VMsMarc Zyngier1-4/+0
Now that the KVM/arm code knows about affinity, remove the hard limit of 4 vcpus per VM. Signed-off-by: Marc Zyngier <marc.zyngier@arm.com> Signed-off-by: Christoffer Dall <christoffer.dall@linaro.org>
2013-10-17Powerpc KVM work is based on a commit after rc4.Gleb Natapov1-3/+3
Merging master into next to satisfy the dependencies. Conflicts: arch/arm/kvm/reset.c
2013-10-13KVM: ARM: Add support for Cortex-A7Jonathan Austin1-7/+8
This patch adds support for running Cortex-A7 guests on Cortex-A7 hosts. As Cortex-A7 is architecturally compatible with A15, this patch is largely just generalising existing code. Areas where 'implementation defined' behaviour is identical for A7 and A15 is moved to allow it to be used by both cores. The check to ensure that coprocessor register tables are sorted correctly is also moved in to 'common' code to avoid each new cpu doing its own check (and possibly forgetting to do so!) Signed-off-by: Jonathan Austin <jonathan.austin@arm.com> Acked-by: Marc Zyngier <marc.zyngier@arm.com> Signed-off-by: Christoffer Dall <christoffer.dall@linaro.org>
2013-09-24ARM: kvm: rename cpu_reset to avoid name clashOlof Johansson1-3/+3
cpu_reset is already #defined in <asm/proc-fns.h> as processor.reset, so it expands here and causes problems. Cc: <stable@vger.kernel.org> Signed-off-by: Olof Johansson <olof@lixom.net> Signed-off-by: Christoffer Dall <christoffer.dall@linaro.org>
2013-08-31ARM: KVM: Work around older compiler bugChristoffer Dall1-1/+1
Compilers before 4.6 do not behave well with unnamed fields in structure initializers and therefore produces build errors: http://gcc.gnu.org/bugzilla/show_bug.cgi?id=10676 By refering to the unnamed union using braces, both older and newer compilers produce the same result. Acked-by: Marc Zyngier <marc.zyngier@arm.com> Reported-by: Russell King <linux@arm.linux.org.uk> Tested-by: Russell King <linux@arm.linux.org.uk> Signed-off-by: Christoffer Dall <christoffer.dall@linaro.org>
2013-06-26ARM: KVM: Allow host virt timer irq to be different from guest timer virt irqAnup Patel1-0/+12
The arch_timer irq numbers (or PPI numbers) are implementation dependent, so the host virtual timer irq number can be different from guest virtual timer irq number. This patch ensures that host virtual timer irq number is read from DTB and guest virtual timer irq is determined based on vcpu target type. Signed-off-by: Anup Patel <anup.patel@linaro.org> Signed-off-by: Pranavkumar Sawargaonkar <pranavkumar@linaro.org> Signed-off-by: Christoffer Dall <cdall@cs.columbia.edu>
2013-01-23KVM: ARM: Initial skeleton to compile KVM supportChristoffer Dall1-0/+74
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 <will.deacon@arm.com> Reviewed-by: Marcelo Tosatti <mtosatti@redhat.com> Signed-off-by: Rusty Russell <rusty@rustcorp.com.au> Signed-off-by: Marc Zyngier <marc.zyngier@arm.com> Signed-off-by: Christoffer Dall <c.dall@virtualopensystems.com>