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test(agc): prove the merged read-only V# test keeps the address space, and cross access

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The test of two read-only V#s merged over three imports now asserts that
its second build hits the cached address space without a dissolve and that
the third leaves it only for the import change. One crossed piece is
writable, so a join of the crossed run cannot erase the overlap the test is
about.
This commit is contained in:
Yunus Shaikh committed 2026-10-15 07:48:13 +00:00
1 parent 253fd9512e
commit f3300a074d
1 file changed
+4 -1
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core/libs/prx/libSceAgcDriver/tests/BdaResources.cpp
+4 -1
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@@ -570,7 +570,7 @@ void spaceReadsAcrossImportsMergedTests(const Context& context, const BdaTestAcc
SetHostImportWindow(window);
const auto change = [&](std::uint8_t* range, bool add) {
auto* mutation = GuestAllocations::GuestAllocationsBegin_nid_postfix();
if (add) GuestAllocations::GuestAllocationsAdd_nid_postfix(mutation, range, piece, true, false, true);
if (add) GuestAllocations::GuestAllocationsAdd_nid_postfix(mutation, range, piece, true, range == guest + 3 * piece, true);
else GuestAllocations::GuestAllocationsRemove_nid_postfix(mutation, range);
GuestAllocations::GuestAllocationsEnd_nid_postfix(mutation);
};
@@ -582,6 +582,7 @@ void spaceReadsAcrossImportsMergedTests(const Context& context, const BdaTestAcc
const std::uint64_t upper = second + 128;
const std::uint64_t upperBytes = third + 256 - upper;
for (int build = 0; build < 3; ++build) {
const auto before = AddressSpaceCounters();
GuestBufferMemory leased(importing);
leased.AcquireRegistered();
leased.AddReadable(lower, lowerBytes);
@@ -599,6 +600,8 @@ void spaceReadsAcrossImportsMergedTests(const Context& context, const BdaTestAcc
Require(at + bytes <= mapped.size() && mapped[at] == expected(address) && mapped[at + bytes - 1] == expected(address + bytes - 1), "a read-only V# over imports, merged with another one, maps other bytes than its own");
}
leased.WriteBack();
const auto after = AddressSpaceCounters();
if (after.enabled && build > 0) Require(after.hits == before.hits + 1 && after.dissolvedOverlap == before.dissolvedOverlap && after.dissolvedImports == before.dissolvedImports + (build == 2 ? 1u : 0u), "read-only V#s over imports, merged with each other, left the cached address space other than by the import change");
}
for (std::size_t index = 0; index < pieces; ++index) change(guest + index * piece, false);
SetHostImportWindow(0);