linux-toradex.git/arch/arm/kvm/reset.c, branch v4.4.126 Linux kernel for Apalis and Colibri modules KVM: arm/arm64: timer: Allow the timer to control the active state 2015-08-12T10:28:26+00:00 Marc Zyngier marc.zyngier@arm.com 2014-06-23T12:59:13+00:00 f120cd6533d21075ab103ae6c225b1697853660d In order to remove the crude hack where we sneak the masked bit into the timer's control register, make use of the phys_irq_map API control the active state of the interrupt. This causes some limited changes to allow for potential error propagation. Reviewed-by: Christoffer Dall <christoffer.dall@linaro.org> Signed-off-by: Marc Zyngier <marc.zyngier@arm.com> 
In order to remove the crude hack where we sneak the masked bit
into the timer's control register, make use of the phys_irq_map
API control the active state of the interrupt.

This causes some limited changes to allow for potential error
propagation.

Reviewed-by: Christoffer Dall <christoffer.dall@linaro.org>
Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>
Merge tag 'kvm-arm-for-3.13-3' of git://git.linaro.org/people/cdall/linux-kvm-arm into kvm-next 2013-11-11T11:02:27+00:00 Paolo Bonzini pbonzini@redhat.com 2013-11-11T10:56:07+00:00 6da8ae556c11bb3b832dcc0bd077c2d563f5583f 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] 
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]
ARM: KVM: drop limitation to 4 CPU VMs 2013-10-22T15:00:06+00:00 Marc Zyngier marc.zyngier@arm.com 2013-10-18T17:19:06+00:00 7999b4d18211bcfb40e3574cf75e94518e9fa2c6 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> 
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>
Powerpc KVM work is based on a commit after rc4. 2013-10-17T14:41:49+00:00 Gleb Natapov gleb@redhat.com 2013-10-17T14:04:47+00:00 13acfd5715144518232d8e29acf7c76ef1b089d8 Merging master into next to satisfy the dependencies. Conflicts: arch/arm/kvm/reset.c 
Merging master into next to satisfy the dependencies.

Conflicts:
	arch/arm/kvm/reset.c
KVM: ARM: Add support for Cortex-A7 2013-10-13T00:45:30+00:00 Jonathan Austin jonathan.austin@arm.com 2013-09-26T15:49:28+00:00 e8c2d99f8277d68d28a9f99d16289712bc2aee7f 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> 
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>
ARM: kvm: rename cpu_reset to avoid name clash 2013-09-24T18:15:05+00:00 Olof Johansson olof@lixom.net 2013-09-11T22:27:41+00:00 ac570e0493815e0b41681c89cb50d66421429d27 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> 
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>
ARM: KVM: Work around older compiler bug 2013-08-30T22:47:58+00:00 Christoffer Dall christoffer.dall@linaro.org 2013-08-19T21:16:57+00:00 6833d83891140aedab7841589b7c7dbd7b600235 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> 
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>
ARM: KVM: Allow host virt timer irq to be different from guest timer virt irq 2013-06-26T17:50:02+00:00 Anup Patel anup.patel@linaro.org 2013-04-30T06:32:15+00:00 5ae7f87a56fab10b8f9b135a8377c144397293ca 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> 
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>
KVM: ARM: Initial skeleton to compile KVM support 2013-01-23T18:29:10+00:00 Christoffer Dall c.dall@virtualopensystems.com 2013-01-20T23:28:06+00:00 749cf76c5a363e1383108a914ea09530bfa0bd43 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> 
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>