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05c2224d4b
It's required by vm_userspace_mem_region_add() that memory size
should be aligned to host page size. However, one guest page is
provided by memslot_modification_stress_test. It triggers failure
in the scenario of 64KB-page-size-host and 4KB-page-size-guest,
as the following messages indicate.
# ./memslot_modification_stress_test
Testing guest mode: PA-bits:40, VA-bits:48, 4K pages
guest physical test memory: [0xffbfff0000, 0xffffff0000)
Finished creating vCPUs
Started all vCPUs
==== Test Assertion Failure ====
lib/kvm_util.c:824: vm_adjust_num_guest_pages(vm->mode, npages) == npages
pid=5712 tid=5712 errno=0 - Success
1 0x0000000000404eeb: vm_userspace_mem_region_add at kvm_util.c:822
2 0x0000000000401a5b: add_remove_memslot at memslot_modification_stress_test.c:82
3 (inlined by) run_test at memslot_modification_stress_test.c:110
4 0x0000000000402417: for_each_guest_mode at guest_modes.c:100
5 0x00000000004016a7: main at memslot_modification_stress_test.c:187
6 0x0000ffffb8cd4383: ?? ??:0
7 0x0000000000401827: _start at :?
Number of guest pages is not compatible with the host. Try npages=16
Fix the issue by providing 16 guest pages to the memory slot for this
particular combination of 64KB-page-size-host and 4KB-page-size-guest
on aarch64.
Fixes:
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.. | ||
aarch64 | ||
include | ||
lib | ||
s390x | ||
x86_64 | ||
.gitignore | ||
access_tracking_perf_test.c | ||
config | ||
demand_paging_test.c | ||
dirty_log_perf_test.c | ||
dirty_log_test.c | ||
hardware_disable_test.c | ||
kvm_binary_stats_test.c | ||
kvm_create_max_vcpus.c | ||
kvm_page_table_test.c | ||
Makefile | ||
max_guest_memory_test.c | ||
memslot_modification_stress_test.c | ||
memslot_perf_test.c | ||
rseq_test.c | ||
set_memory_region_test.c | ||
settings | ||
steal_time.c | ||
system_counter_offset_test.c |