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test(libkernel): cover virtual query after partial unmap 

Carry over the direct mmap regression from PR #2267. The live-extent implementation is already present in the preceding commits.
This commit is contained in:
Saranxzi 2026-10-09 22:10:57 +00:00 committed by MarcZX100
parent eb1e6b22a9
commit e06c459534
1 changed files with 30 additions and 0 deletions
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30
core/libs/tests/GuestMemory.cpp
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@ -1107,10 +1107,40 @@ static void CheckVirtualQueryForNonReadableGuestRange() {
Require(sceKernelMunmap(mapped, page) == 0);
}
static void CheckVirtualQueryPartialMunmap() {
constexpr std::size_t page = 0x4000;
const auto failed = reinterpret_cast<void*>(static_cast<std::uintptr_t>(-1));
void* raw = mmap_nid_postfix(nullptr, page * 3, 3, 0x1002, -1, 0);
Require(raw != failed);
auto* memory = static_cast<unsigned char*>(raw);
VirtualQueryInfo before{};
Require(sceKernelVirtualQuery(memory, 0, &before, sizeof(before)) == 0);
Require(before.start == reinterpret_cast<std::uintptr_t>(memory));
Require(before.end == reinterpret_cast<std::uintptr_t>(memory) + page * 3);
Require(munmap_nid_postfix(memory + page, page) == 0);
VirtualQueryInfo first{};
Require(sceKernelVirtualQuery(memory, 0, &first, sizeof(first)) == 0);
Require(first.start == reinterpret_cast<std::uintptr_t>(memory));
Require(first.end == reinterpret_cast<std::uintptr_t>(memory) + page);
VirtualQueryInfo middle{};
Require(sceKernelVirtualQuery(memory + page, 0, &middle, sizeof(middle)) == SCE_KERNEL_ERROR_EACCES);
VirtualQueryInfo next{};
Require(sceKernelVirtualQuery(memory + page, 1, &next, sizeof(next)) == 0);
Require(next.start == reinterpret_cast<std::uintptr_t>(memory) + page * 2);
Require(next.end == reinterpret_cast<std::uintptr_t>(memory) + page * 3);
VirtualQueryInfo tail{};
Require(sceKernelVirtualQuery(memory + page * 2, 0, &tail, sizeof(tail)) == 0);
Require(tail.start == reinterpret_cast<std::uintptr_t>(memory) + page * 2);
Require(tail.end == reinterpret_cast<std::uintptr_t>(memory) + page * 3);
Require(munmap_nid_postfix(memory, page) == 0);
Require(munmap_nid_postfix(memory + page * 2, page) == 0);
}
int main() {
CheckVirtualQuerySplitFlexibleRanges();
CheckVirtualQueryForNonReadableGuestRange();
CheckReleaseFlexibleMemory();
CheckVirtualQueryPartialMunmap();
CheckNamedAndHintedMappings();
CheckInternalNamedFlexibleMapping();
CheckBatchMapStopsAtInvalidEntry();