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https://github.com/RGBCube/serenity
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UE+LibX86: Support bigger reads and writes
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parent
a99812633b
commit
f1957bb86b
11 changed files with 316 additions and 4 deletions
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@ -163,6 +163,42 @@ ValueWithShadow<u64> SoftMMU::read64(X86::LogicalAddress address)
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return region->read64(address.offset() - region->base());
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}
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ValueWithShadow<u128> SoftMMU::read128(X86::LogicalAddress address)
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{
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auto* region = find_region(address);
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if (!region) {
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reportln("SoftMMU::read128: No region for @ {:p}", address.offset());
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m_emulator.dump_backtrace();
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TODO();
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}
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if (!region->is_readable()) {
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reportln("SoftMMU::read128: Non-readable region @ {:p}", address.offset());
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m_emulator.dump_backtrace();
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TODO();
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}
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return region->read128(address.offset() - region->base());
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}
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ValueWithShadow<u256> SoftMMU::read256(X86::LogicalAddress address)
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{
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auto* region = find_region(address);
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if (!region) {
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reportln("SoftMMU::read256: No region for @ {:p}", address.offset());
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m_emulator.dump_backtrace();
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TODO();
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}
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if (!region->is_readable()) {
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reportln("SoftMMU::read256: Non-readable region @ {:p}", address.offset());
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m_emulator.dump_backtrace();
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TODO();
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}
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return region->read256(address.offset() - region->base());
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}
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void SoftMMU::write8(X86::LogicalAddress address, ValueWithShadow<u8> value)
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{
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auto* region = find_region(address);
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@ -234,6 +270,42 @@ void SoftMMU::write64(X86::LogicalAddress address, ValueWithShadow<u64> value)
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region->write64(address.offset() - region->base(), value);
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}
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void SoftMMU::write128(X86::LogicalAddress address, ValueWithShadow<u128> value)
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{
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auto* region = find_region(address);
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if (!region) {
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reportln("SoftMMU::write128: No region for @ {:p}", address.offset());
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m_emulator.dump_backtrace();
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TODO();
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}
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if (!region->is_writable()) {
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reportln("SoftMMU::write128: Non-writable region @ {:p}", address.offset());
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m_emulator.dump_backtrace();
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TODO();
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}
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region->write128(address.offset() - region->base(), value);
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}
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void SoftMMU::write256(X86::LogicalAddress address, ValueWithShadow<u256> value)
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{
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auto* region = find_region(address);
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if (!region) {
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reportln("SoftMMU::write256: No region for @ {:p}", address.offset());
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m_emulator.dump_backtrace();
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TODO();
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}
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if (!region->is_writable()) {
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reportln("SoftMMU::write256: Non-writable region @ {:p}", address.offset());
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m_emulator.dump_backtrace();
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TODO();
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}
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region->write256(address.offset() - region->base(), value);
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}
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void SoftMMU::copy_to_vm(FlatPtr destination, const void* source, size_t size)
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{
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// FIXME: We should have a way to preserve the shadow data here as well.
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