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5 Commits

Author SHA1 Message Date
Maxim Levitsky
13c2c3cfe0 KVM: selftests: fix hyperv_clock test 
The test was mistakenly using addr_gpa2hva on a gva and that happened
to work accidentally.  Commit 106a2e766eae ("KVM: selftests: Lower the
min virtual address for misc page allocations") revealed this bug.

Fixes: 2c7f76b4c42b ("selftests: kvm: Add basic Hyper-V clocksources tests", 2021-03-18)
Signed-off-by: Maxim Levitsky <mlevitsk@redhat.com>
Message-Id: <20210804112057.409498-1-mlevitsk@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
 2021-08-04 09:43:03 -04:00
Sean Christopherson
a9db9609c0 KVM: selftests: Add helpers to allocate N pages of virtual memory 
Add wrappers to allocate 1 and N pages of memory using de facto standard
values as the defaults for minimum virtual address, data memslot, and
page table memslot.  Convert all compatible users.

No functional change intended.

Signed-off-by: Sean Christopherson <seanjc@google.com>
Message-Id: <20210622200529.3650424-7-seanjc@google.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
 2021-06-24 04:31:18 -04:00
Vitaly Kuznetsov
75a3f4287f KVM: selftests: move Hyper-V MSR definitions to hyperv.h 
These defines can be shared by multiple tests, move them to a dedicated
header.

Signed-off-by: Vitaly Kuznetsov <vkuznets@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Message-Id: <20210521095204.2161214-29-vkuznets@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
 2021-06-17 13:09:45 -04:00
Vitaly Kuznetsov
55626ca9c6 selftests: kvm: Check that TSC page value is small after KVM_SET_CLOCK(0) 
Add a test for the issue when KVM_SET_CLOCK(0) call could cause
TSC page value to go very big because of a signedness issue around
hv_clock->system_time.

Signed-off-by: Vitaly Kuznetsov <vkuznets@redhat.com>
Message-Id: <20210326155551.17446-3-vkuznets@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
 2021-04-01 05:14:19 -04:00
Vitaly Kuznetsov
2c7f76b4c4 selftests: kvm: Add basic Hyper-V clocksources tests 
Introduce a new selftest for Hyper-V clocksources (MSR-based reference TSC
and TSC page). As a starting point, test the following:
1) Reference TSC is 1Ghz clock.
2) Reference TSC and TSC page give the same reading.
3) TSC page gets updated upon KVM_SET_CLOCK call.
4) TSC page does not get updated when guest opted for reenlightenment.
5) Disabled TSC page doesn't get updated.

Signed-off-by: Vitaly Kuznetsov <vkuznets@redhat.com>
Message-Id: <20210318140949.1065740-1-vkuznets@redhat.com>
[Add a host-side test using TSC + KVM_GET_MSR too. - Paolo]
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
 2021-03-18 11:38:58 -04:00