592188e34b
The library uses the hypervisor instruction HVC, which is only
available on ARMv7-A with Hypervisor extensions. This is limited to
Cortex-A{7,12,15,17}.
In addition the build unconditionally passes -marm so it also needs
ARM instructions to be available, but that is already implied by the
CPU selection.
Implicitly fixes
http://autobuild.buildroot.net/results/53d109fd9055fd20387bb857aced5f89cf3086fd
though it is still not clear why ld doesn't accept the -Ttext=...
option there.
Signed-off-by: Arnout Vandecappelle (Essensium/Mind) <arnout@mind.be>
[Thomas: A12 and A17 also have the virtualization extensions.]
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
31 lines
1.4 KiB
Plaintext
31 lines
1.4 KiB
Plaintext
config BR2_PACKAGE_KVM_UNIT_TESTS
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bool "kvm-unit-tests"
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select BR2_HOSTARCH_NEEDS_IA32_COMPILER if BR2_x86_64=y
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# on i386 and x86-64, __builtin_reachable is used, so we need
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# gcc 4.5 at least. on i386, we use the target gcc, while on
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# x86-64 we use the host gcc (see .mk file for details)
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# On ARM, it uses virtualization extensions
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depends on BR2_cortex_a7 || BR2_cortex_a12 || \
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BR2_cortex_a15 || BR2_cortex_a17 || \
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(BR2_i386 && BR2_TOOLCHAIN_GCC_AT_LEAST_4_5) || \
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BR2_powerpc64 || \
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BR2_powerpc64le || \
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(BR2_x86_64 && BR2_HOST_GCC_AT_LEAST_4_5)
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help
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kvm-unit-tests is a project as old as KVM. As its name
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suggests, it's purpose is to provide unit tests for KVM. The
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unit tests are tiny guest operating systems that generally
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execute only tens of lines of C and assembler test code in
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order to obtain its PASS/FAIL result. Unit tests provide KVM
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and virt hardware functional testing by targeting the
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features through minimal implementations of their use per
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the hardware specification. The simplicity of unit tests
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make them easy to verify they are correct, easy to maintain,
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and easy to use in timing measurements. Unit tests are also
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often used for quick and dirty bug reproducers. The
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reproducers may then be kept as regression tests. It's
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strongly encouraged that patches implementing new KVM
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features are submitted with accompanying unit tests.
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http://www.linux-kvm.org/page/KVM-unit-tests
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