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Let the kvm selftest include the tools headers, then we can start to use
things there like bitmap operations.
Signed-off-by: Peter Xu <peterx@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
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Most of the tests are using the same way to do guest to host sync but
the code is mostly duplicated. Generalize the guest port macros into
the common header file and use it in different tests.
Meanwhile provide "struct guest_args" and a helper "guest_args_read()"
to hide the register details when playing with these port operations on
RDI and RSI.
Signed-off-by: Peter Xu <peterx@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
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This includes setting up the shadow VMCS and the secondary execution
controls in lib/vmx.c.
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
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Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
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The test calls KVM_RUN repeatedly, and creates an entirely new VM with the
old memory and vCPU state on every exit to userspace. The kvm_util API is
expanded with two functions that manage the lifetime of a kvm_vm struct:
the first closes the file descriptors and leaves the memory allocated,
and the second opens the file descriptors and reuses the memory from
the previous incarnation of the kvm_vm struct.
For now the test is very basic, as it does not test for example XSAVE or
vCPU events. However, it will test nested virtualization state starting
with the next patch.
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
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The allocation of the VMXON and VMCS is currently done twice, in
lib/vmx.c and in vmx_tsc_adjust_test.c. Reorganize the code to
provide a cleaner and easier to use API to the tests. lib/vmx.c
now does the complete setup of the VMX data structures, but does not
create the VM or set CPUID. This has to be done by the caller.
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
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The GDT and the TSS base were left to zero, and this has interesting effects
when the TSS descriptor is later read to set up a VMCS's TR_BASE. Basically
it worked by chance, and this patch fixes it by setting up all the protected
mode data structures properly.
Because the GDT and TSS addresses are virtual, the page tables now always
exist at the time of vcpu setup.
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
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Right now, skipped tests are returning a failure exit code if /dev/kvm does
not exists. Consistently return a zero status code so that various scripts
over the interwebs do not complain. Also return a zero status code if
the KVM_CAP_SYNC_REGS capability is not present, and hardcode in the
test the register kinds that are covered (rather than just using whatever
value of KVM_SYNC_X86_VALID_FIELDS is provided by the kernel headers).
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
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The test checks the behavior of setting MSR_IA32_TSC in a nested guest,
and the TSC_OFFSET VMCS field in general. It also introduces the testing
infrastructure for Intel nested virtualization.
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
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This includes the infrastructure to map the test into the guest and
run code from the test program inside a VM.
Signed-off-by: Ken Hofsass <hofsass@google.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
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Testsuite contributed by Google and cleaned up by myself for
inclusion in Linux.
Signed-off-by: Ken Hofsass <hofsass@google.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
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