diff options
| author | Aaron Lewis <aaronlewis@google.com> | 2023-07-28 17:36:15 -0700 |
|---|---|---|
| committer | Sean Christopherson <seanjc@google.com> | 2023-08-02 14:41:59 -0700 |
| commit | 215a681710a554b224d743e4a9cd68965889713c (patch) | |
| tree | 18c93f7ce5eacb90aa0926a6cb13533a77a12356 /tools/testing/selftests/kvm/include | |
| parent | e5119382499cefc839097dcc78f27ab00131e7ad (diff) | |
KVM: selftests: Add additional pages to the guest to accommodate ucall
Add additional pages to the guest to account for the number of pages
the ucall headers need. The only reason things worked before is the
ucall headers are fairly small. If they were ever to increase in
size the guest could run out of memory.
This is done in preparation for adding string formatting options to
the guest through the ucall framework which increases the size of
the ucall headers.
Fixes: 426729b2cf2e ("KVM: selftests: Add ucall pool based implementation")
Signed-off-by: Aaron Lewis <aaronlewis@google.com>
Link: https://lore.kernel.org/r/20230729003643.1053367-7-seanjc@google.com
Signed-off-by: Sean Christopherson <seanjc@google.com>
Diffstat (limited to 'tools/testing/selftests/kvm/include')
| -rw-r--r-- | tools/testing/selftests/kvm/include/ucall_common.h | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/tools/testing/selftests/kvm/include/ucall_common.h b/tools/testing/selftests/kvm/include/ucall_common.h index 1a6aaef5ccae..bcbb362aa77f 100644 --- a/tools/testing/selftests/kvm/include/ucall_common.h +++ b/tools/testing/selftests/kvm/include/ucall_common.h @@ -34,6 +34,7 @@ void *ucall_arch_get_ucall(struct kvm_vcpu *vcpu); void ucall(uint64_t cmd, int nargs, ...); uint64_t get_ucall(struct kvm_vcpu *vcpu, struct ucall *uc); void ucall_init(struct kvm_vm *vm, vm_paddr_t mmio_gpa); +int ucall_nr_pages_required(uint64_t page_size); /* * Perform userspace call without any associated data. This bare call avoids |