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Provide valid inputs for RAX, RCX, and RDX when testing whether or not
KVM injects a #UD on MONITOR/MWAIT. SVM has a virtualization hole and
checks for _all_ faults before checking for intercepts, e.g. MONITOR with
an unsupported RCX will #GP before KVM gets a chance to intercept and
emulate.
Fixes: 2325d4dd7321 ("KVM: selftests: Add MONITOR/MWAIT quirk test")
Signed-off-by: Sean Christopherson <seanjc@google.com>
Link: https://lore.kernel.org/r/20220711225753.1073989-3-seanjc@google.com
Fix a copy+paste error in monitor_mwait_test by switching one of the two
"monitor" instructions to an "mwait". The intent of the test is very
much to verify the quirk handles both MONITOR and MWAIT.
Fixes: 2325d4dd7321 ("KVM: selftests: Add MONITOR/MWAIT quirk test")
Reported-by: Yuan Yao <yuan.yao@linux.intel.com>
Signed-off-by: Sean Christopherson <seanjc@google.com>
Link: https://lore.kernel.org/r/20220711225753.1073989-2-seanjc@google.com
Stop using the KSFT_KHDR_INSTALL flag as installing the kernel headers
from the kselftest Makefile is causing some issues. Instead, rely on
the headers to be installed directly by the top-level Makefile
"headers_install" make target prior to building kselftest.
Signed-off-by: Guillaume Tucker <guillaume.tucker@collabora.com>
Tested-by: Anders Roxell <anders.roxell@linaro.org>
Signed-off-by: Shuah Khan <skhan@linuxfoundation.org>
Hardware would directly write x2APIC ICR register instead of software
emulation in some circumstances, e.g when Intel IPI virtualization is
enabled. This behavior requires normal reserved bits checking to ensure
them input as zero, otherwise it will cause #GP. So we need mask out
those reserved bits from the data written to vICR register.
Remove Delivery Status bit emulation in test case as this flag
is invalid and not needed in x2APIC mode. KVM may ignore clearing
it during interrupt dispatch which will lead to fake test failure.
Opportunistically correct vector number for test sending IPI to
non-existent vCPUs.
Signed-off-by: Zeng Guang <guang.zeng@intel.com>
Message-Id: <20220623094511.26066-1-guang.zeng@intel.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
This patch add a self test that verifies user space can inject
UnCorrectable No Action required (UCNA) memory errors to the guest.
It also verifies that incorrectly configured MSRs for Corrected
Machine Check Interrupt (CMCI) emulation will result in #GP.
Signed-off-by: Jue Wang <juew@google.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Message-Id: <20220610171134.772566-9-juew@google.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
In order to improve performance across multiple reads of VM stats, cache
the stats metadata in the VM struct.
Signed-off-by: Ben Gardon <bgardon@google.com>
Message-Id: <20220613212523.3436117-11-bgardon@google.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Add an argument to the NX huge pages test to test disabling the feature
on a VM using the new capability.
Reviewed-by: David Matlack <dmatlack@google.com>
Signed-off-by: Ben Gardon <bgardon@google.com>
Message-Id: <20220613212523.3436117-10-bgardon@google.com>
[Handle failure of sudo or setcap more gracefully. - Paolo]
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
There's currently no test coverage of NX hugepages in KVM selftests, so
add a basic test to ensure that the feature works as intended.
The test creates a VM with a data slot backed with huge pages. The
memory in the data slot is filled with op-codes for the return
instruction. The guest then executes a series of accesses on the memory,
some reads, some instruction fetches. After each operation, the guest
exits and the test performs some checks on the backing page counts to
ensure that NX page splitting an reclaim work as expected.
Reviewed-by: David Matlack <dmatlack@google.com>
Signed-off-by: Ben Gardon <bgardon@google.com>
Message-Id: <20220613212523.3436117-7-bgardon@google.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Move the code to read the binary stats data to the KVM selftests
library. It will be re-used by other tests to check KVM behavior.
Also opportunistically remove an unnecessary calculation with
"size_data" in stats_test.
Reviewed-by: David Matlack <dmatlack@google.com>
Reviewed-by: Peter Xu <peterx@redhat.com>
Signed-off-by: Ben Gardon <bgardon@google.com>
Message-Id: <20220613212523.3436117-6-bgardon@google.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Fix a variety of code style violations and/or inconsistencies in the
binary stats test. The 80 char limit is a soft limit and can and should
be ignored/violated if doing so improves the overall code readability.
Specifically, provide consistent indentation and don't split expressions
at arbitrary points just to honor the 80 char limit.
Opportunistically expand/add comments to call out the more subtle aspects
of the code.
Signed-off-by: Sean Christopherson <seanjc@google.com>
Reviewed-by: David Matlack <dmatlack@google.com>
Signed-off-by: Ben Gardon <bgardon@google.com>
Message-Id: <20220613212523.3436117-5-bgardon@google.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Move the code to read the binary stats descriptors to the KVM selftests
library. It will be re-used by other tests to check KVM behavior.
No functional change intended.
Reviewed-by: David Matlack <dmatlack@google.com>
Reviewed-by: Peter Xu <peterx@redhat.com>
Signed-off-by: Ben Gardon <bgardon@google.com>
Message-Id: <20220613212523.3436117-4-bgardon@google.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Move the code to read the binary stats header to the KVM selftests
library. It will be re-used by other tests to check KVM behavior.
No functional change intended.
Reviewed-by: David Matlack <dmatlack@google.com>
Reviewed-by: Peter Xu <peterx@redhat.com>
Signed-off-by: Ben Gardon <bgardon@google.com>
Message-Id: <20220613212523.3436117-3-bgardon@google.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
There's no need to allocate dynamic memory for the stats header since
its size is known at compile time.
Reviewed-by: David Matlack <dmatlack@google.com>
Reviewed-by: Peter Xu <peterx@redhat.com>
Signed-off-by: Ben Gardon <bgardon@google.com>
Message-Id: <20220613212523.3436117-2-bgardon@google.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
The selftests, when built with newer versions of clang, is found
to have over optimized guests' ucall() function, and eliminating
the stores for uc.cmd (perhaps due to no immediate readers). This
resulted in the userspace side always reading a value of '0', and
causing multiple test failures.
As a result, prevent the compiler from optimizing the stores in
ucall() with WRITE_ONCE().
Suggested-by: Ricardo Koller <ricarkol@google.com>
Suggested-by: Reiji Watanabe <reijiw@google.com>
Signed-off-by: Raghavendra Rao Ananta <rananta@google.com>
Message-Id: <20220615185706.1099208-1-rananta@google.com>
Reviewed-by: Andrew Jones <drjones@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Add a test to verify the "MONITOR/MWAIT never fault" quirk, and as a
bonus, also verify the related "MISC_ENABLES ignores ENABLE_MWAIT" quirk.
If the "never fault" quirk is enabled, MONITOR/MWAIT should always be
emulated as NOPs, even if they're reported as disabled in guest CPUID.
Use the MISC_ENABLES quirk to coerce KVM into toggling the MWAIT CPUID
enable, as KVM now disallows manually toggling CPUID bits after running
the vCPU.
Signed-off-by: Sean Christopherson <seanjc@google.com>
Message-Id: <20220608224516.3788274-6-seanjc@google.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Use exception fixup to verify VMCALL/RDMSR/WRMSR fault as expected in the
Hyper-V Features test.
No functional change intended.
Signed-off-by: Sean Christopherson <seanjc@google.com>
Message-Id: <20220608224516.3788274-5-seanjc@google.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Explicitly do all setup at every stage of the Hyper-V Features test, e.g.
set the MSR/hypercall, enable capabilities, etc... Now that the VM is
recreated for every stage, values that are written into the VM's address
space, i.e. shared with the guest, are reset between sub-tests, as are
any capabilities, etc...
Fix the hypercall params as well, which were broken in the same rework.
The "hcall" struct/pointer needs to point at the hcall_params object, not
the set of hypercall pages.
The goofs were hidden by the test's dubious behavior of using '0' to
signal "done", i.e. the MSR test ran exactly one sub-test, and the
hypercall test was a gigantic nop.
Fixes: 6c1186430a80 ("KVM: selftests: Avoid KVM_SET_CPUID2 after KVM_RUN in hyperv_features test")
Signed-off-by: Sean Christopherson <seanjc@google.com>
Message-Id: <20220608224516.3788274-4-seanjc@google.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Add x86-64 support for exception fixup on single instructions, without
forcing tests to install their own fault handlers. Use registers r9-r11
to flag the instruction as "safe" and pass fixup/vector information,
i.e. introduce yet another flavor of fixup (versus the kernel's in-memory
tables and KUT's per-CPU area) to take advantage of KVM sefltests being
64-bit only.
Using only registers avoids the need to allocate fixup tables, ensure
FS or GS base is valid for the guest, ensure memory is mapped into the
guest, etc..., and also reduces the potential for recursive faults due to
accessing memory.
Providing exception fixup trivializes tests that just want to verify that
an instruction faults, e.g. no need to track start/end using global
labels, no need to install a dedicated handler, etc...
Deliberately do not support #DE in exception fixup so that the fixup glue
doesn't need to account for a fault with vector == 0, i.e. the vector can
also indicate that a fault occurred. KVM injects #DE only for esoteric
emulation scenarios, i.e. there's very, very little value in testing #DE.
Force any test that wants to generate #DEs to install its own handler(s).
Use kvm_pv_test as a guinea pig for the new fixup, as it has a very
straightforward use case of wanting to verify that RDMSR and WRMSR fault.
Signed-off-by: Sean Christopherson <seanjc@google.com>
Message-Id: <20220608224516.3788274-3-seanjc@google.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Fix the inverted logic of the memop extension capability check.
Fixes: 97da92c0ff92 ("KVM: s390: selftests: Use TAP interface in the memop test")
Signed-off-by: Janis Schoetterl-Glausch <scgl@linux.ibm.com>
Message-Id: <20220614162635.3445019-1-scgl@linux.ibm.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
There are some parameter being removed in function but the parameter
comments still exist, so remove them.
Signed-off-by: Shaoqin Huang <shaoqin.huang@intel.com>
Message-Id: <20220614224126.211054-1-shaoqin.huang@intel.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Replace calls to kvm_check_cap() that treat its return as a boolean with
calls to kvm_has_cap(). Several instances of kvm_check_cap() were missed
when kvm_has_cap() was introduced.
Reported-by: Andrew Jones <drjones@redhat.com>
Fixes: 3ea9b809650b ("KVM: selftests: Add kvm_has_cap() to provide syntactic sugar")
Signed-off-by: Sean Christopherson <seanjc@google.com>
Message-Id: <20220613161942.1586791-5-seanjc@google.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Remove a duplicate TEST_ASSERT() on the number of runnable vCPUs in
vm_nr_pages_required() that snuck in during a rebase gone bad.
Reported-by: Andrew Jones <drjones@redhat.com>
Fixes: 6e1d13bf3815 ("KVM: selftests: Move per-VM/per-vCPU nr pages calculation to __vm_create()")
Signed-off-by: Sean Christopherson <seanjc@google.com>
Message-Id: <20220613161942.1586791-4-seanjc@google.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Replace the goofy static_assert on the size of the @vm/@vcpu parameters
with a call to a dummy helper, i.e. let the compiler naturally complain
about an incompatible type instead of homebrewing a poor replacement.
Reported-by: Andrew Jones <drjones@redhat.com>
Fixes: fcba483e8246 ("KVM: selftests: Sanity check input to ioctls() at build time")
Signed-off-by: Sean Christopherson <seanjc@google.com>
Message-Id: <20220613161942.1586791-3-seanjc@google.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Add an apostrophe in a comment about it being the caller's, not callers,
responsibility to free an object.
Reported-by: Andrew Jones <drjones@redhat.com>
Fixes: 768e9a61856b ("KVM: selftests: Purge vm+vcpu_id == vcpu silliness")
Signed-off-by: Sean Christopherson <seanjc@google.com>
Message-Id: <20220613161942.1586791-2-seanjc@google.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
kvm_binary_stats_test accepts two arguments, the number of vms
and number of vcpus. If these inputs are not equal then the
test would likely crash for one reason or another due to using
miscalculated indices for the vcpus array. Fix the index
expressions by swapping the use of i and j.
Signed-off-by: Andrew Jones <drjones@redhat.com>
Message-Id: <20220614081041.2571511-1-drjones@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Add a static assert to the KVM/VM/vCPU ioctl() helpers to verify that the
size of the argument provided matches the expected size of the IOCTL.
Because ioctl() ultimately takes a "void *", it's all too easy to pass in
garbage and not detect the error until runtime. E.g. while working on a
CPUID rework, selftests happily compiled when vcpu_set_cpuid()
unintentionally passed the cpuid() function as the parameter to ioctl()
(a local "cpuid" parameter was removed, but its use was not replaced with
"vcpu->cpuid" as intended).
Tweak a variety of benign issues that aren't compatible with the sanity
check, e.g. passing a non-pointer for ioctls().
Note, static_assert() requires a string on older versions of GCC. Feed
it an empty string to make the compiler happy.
Signed-off-by: Sean Christopherson <seanjc@google.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Use the TAP-friendly ksft_exit_skip() instead of KVM's custom print_skip()
when skipping a test via __TEST_REQUIRE. KVM's "skipping test" has no
known benefit, whereas some setups rely on TAP output.
Signed-off-by: Sean Christopherson <seanjc@google.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Add TEST_REQUIRE() and __TEST_REQUIRE() to replace the myriad open coded
instances of selftests exiting with KSFT_SKIP after printing an
informational message. In addition to reducing the amount of boilerplate
code in selftests, the UPPERCASE macro names make it easier to visually
identify a test's requirements.
Convert usage that erroneously uses something other than print_skip()
and/or "exits" with '0' or some other non-KSFT_SKIP value.
Intentionally drop a kvm_vm_free() in aarch64/debug-exceptions.c as part
of the conversion. All memory and file descriptors are freed on process
exit, so the explicit free is superfluous.
Signed-off-by: Sean Christopherson <seanjc@google.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Add kvm_has_cap() to wrap kvm_check_cap() and return a bool for the use
cases where the caller only wants check if a capability is supported,
i.e. doesn't care about the value beyond whether or not it's non-zero.
The "check" terminology is somewhat ambiguous as the non-boolean return
suggests that '0' might mean "success", i.e. suggests that the ioctl uses
the 0/-errno pattern. Provide a wrapper instead of trying to find a new
name for the raw helper; the "check" terminology is derived from the name
of the ioctl, so using e.g. "get" isn't a clear win.
Signed-off-by: Sean Christopherson <seanjc@google.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Return an 'unsigned int' instead of a signed 'int' from kvm_check_cap(),
to make it more obvious that kvm_check_cap() can never return a negative
value due to its assertion that the return is ">= 0".
Signed-off-by: Sean Christopherson <seanjc@google.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Remove DEFAULT_GUEST_PHY_PAGES and open code the magic number (with a
comment) in vm_nr_pages_required(). Exposing DEFAULT_GUEST_PHY_PAGES to
tests was a symptom of the VM creation APIs not cleanly supporting tests
that create runnable vCPUs, but can't do so immediately. Now that tests
don't have to manually compute the amount of memory needed for basic
operation, make it harder for tests to do things that should be handled
by the framework, i.e. force developers to improve the framework instead
of hacking around flaws in individual tests.
Signed-off-by: Sean Christopherson <seanjc@google.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Use vm->max_gfn to compute the highest gpa in vmx_apic_access_test, and
blindly trust that the highest gfn/gpa will be well above the memory
carved out for memslot0. The existing check is beyond paranoid; KVM
doesn't support CPUs with host.MAXPHYADDR < 32, and the selftests are all
kinds of hosed if memslot0 overlaps the local xAPIC, which resides above
"lower" (below 4gb) DRAM.
Signed-off-by: Sean Christopherson <seanjc@google.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Handle all memslot0 size adjustments in __vm_create(). Currently, the
adjustments reside in __vm_create_with_vcpus(), which means tests that
call vm_create() or __vm_create() directly are left to their own devices.
Some tests just pass DEFAULT_GUEST_PHY_PAGES and don't bother with any
adjustments, while others mimic the per-vCPU calculations.
For vm_create(), and thus __vm_create(), take the number of vCPUs that
will be runnable to calculate that number of per-vCPU pages needed for
memslot0. To give readers a hint that neither vm_create() nor
__vm_create() create vCPUs, name the parameter @nr_runnable_vcpus instead
of @nr_vcpus. That also gives readers a hint as to why tests that create
larger numbers of vCPUs but never actually run those vCPUs can skip
straight to the vm_create_barebones() variant.
Signed-off-by: Sean Christopherson <seanjc@google.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Drop @num_percpu_pages from __vm_create_with_vcpus(), all callers pass
'0' and there's unlikely to be a test that allocates just enough memory
that it needs a per-CPU allocation, but not so much that it won't just do
its own memory management.
Signed-off-by: Sean Christopherson <seanjc@google.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
All callers of __vm_create_with_vcpus() pass DEFAULT_GUEST_PHY_PAGES for
@slot_mem_pages; drop the param and just hardcode the "default" as the
base number of pages for slot0.
Signed-off-by: Sean Christopherson <seanjc@google.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Drop a variety of 'struct kvm_vm' accessors that wrap a single variable
now that tests can simply reference the variable directly.
Signed-off-by: Sean Christopherson <seanjc@google.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Drop vcpu_state() now that all tests reference vcpu->run directly.
Signed-off-by: Sean Christopherson <seanjc@google.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Drop vcpu_get() and rename vcpu_find() to vcpu_exists() to make it that
much harder for a test to give meaning to a vCPU ID. I.e. force tests to
capture a vCPU when the vCPU is created.
Signed-off-by: Sean Christopherson <seanjc@google.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Take a vCPU directly instead of a VM+vcpu pair in all vCPU-scoped helpers
and ioctls.
Signed-off-by: Sean Christopherson <seanjc@google.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Require the caller of __vm_create_with_vcpus() to provide a non-NULL
array of vCPUs now that all callers do so. It's extremely unlikely a
test will have a legitimate use case for creating a VM with vCPUs without
wanting to do something with those vCPUs, and if there is such a use case,
requiring that one-off test to provide a dummy array is a minor
annoyance.
Signed-off-by: Sean Christopherson <seanjc@google.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Grab the vCPU from vm_vcpu_add() directly instead of doing vcpu_get()
after the fact. This will allow removing vcpu_get() entirely.
Signed-off-by: Sean Christopherson <seanjc@google.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Track vCPUs by their 'struct kvm_vcpu' object, and stop assuming that a
vCPU's ID is the same as its index when referencing a vCPU's metadata.
Signed-off-by: Sean Christopherson <seanjc@google.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
In preparation for taking a vCPU pointer in vCPU-scoped functions, grab
the vCPU(s) created by __vm_vcpu_add() and use the ID from the vCPU
object instead of hardcoding the ID in ioctl() invocations.
Rename init1/init2 => init0/init1 to avoid having odd/confusing code
where vcpu0 consumes init1 and vcpu1 consumes init2.
Note, this change could easily be done when the functions are converted
in the future, and/or the vcpu{0,1} vs. init{1,2} discrepancy could be
ignored, but then there would be no opportunity to poke fun at the
1-based counting scheme.
Signed-off-by: Sean Christopherson <seanjc@google.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Track the vCPU's 'struct kvm_vcpu' object in get-reg-list instead of
hardcoding '0' everywhere.
Signed-off-by: Sean Christopherson <seanjc@google.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Track vCPUs by their 'struct kvm_vcpu' object in kvm_binary_stats_test,
not by their ID. The per-vCPU helpers will soon take a vCPU instead of a
VM+vcpu_id pair.
Signed-off-by: Sean Christopherson <seanjc@google.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Reference vCPUs by their 'struct kvm_vcpu' object in kvm_page_table_test
instead of by their ID. This moves selftests one step closer towards
taking a 'struct kvm_vcpu *' instead of VM+vcpu_id for vCPU helpers.
Signed-off-by: Sean Christopherson <seanjc@google.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Drop the @vcpuids parameter from VM creators now that there are no users.
Allowing tests to specify IDs was a gigantic mistake as it resulted in
tests with arbitrary and ultimately meaningless IDs that differed only
because the author used test X intead of test Y as the source for
copy+paste (the de facto standard way to create a KVM selftest).
Except for literally two tests, x86's set_boot_cpu_id and s390's resets,
tests do not and should not care about the vCPU ID.
Signed-off-by: Sean Christopherson <seanjc@google.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Drop all vm_create_default*() helpers, the "default" naming turned out to
terrible as wasn't extensible (hard to have multiple defaults), was a lie
(half the settings were default, half weren't), and failed to capture
relationships between helpers, e.g. compared with the kernel's standard
underscores pattern.
Signed-off-by: Sean Christopherson <seanjc@google.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Use vm_create_with_vcpus() in max_guest_memory_test and reference vCPUs
by their 'struct kvm_vcpu' object instead of their ID.
Signed-off-by: Sean Christopherson <seanjc@google.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Use vm_create() instead of vm_create_default_with_vcpus() in
tsc_scaling_sync. The existing call doesn't create any vCPUs, and the
guest_code() entry point is set when vm_vcpu_add_default() is invoked.
Signed-off-by: Sean Christopherson <seanjc@google.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
