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-rw-r--r--src/core/hle/kernel/svc.cpp51
-rw-r--r--src/core/hle/kernel/vm_manager.cpp103
-rw-r--r--src/core/hle/kernel/vm_manager.h139
3 files changed, 279 insertions, 14 deletions
diff --git a/src/core/hle/kernel/svc.cpp b/src/core/hle/kernel/svc.cpp
index 348a22904..c826dfd96 100644
--- a/src/core/hle/kernel/svc.cpp
+++ b/src/core/hle/kernel/svc.cpp
@@ -254,11 +254,52 @@ static ResultCode SetMemoryPermission(VAddr addr, u64 size, u32 prot) {
return vm_manager.ReprotectRange(addr, size, converted_permissions);
}
-static ResultCode SetMemoryAttribute(VAddr addr, u64 size, u32 state0, u32 state1) {
- LOG_WARNING(Kernel_SVC,
- "(STUBBED) called, addr=0x{:X}, size=0x{:X}, state0=0x{:X}, state1=0x{:X}", addr,
- size, state0, state1);
- return RESULT_SUCCESS;
+static ResultCode SetMemoryAttribute(VAddr address, u64 size, u32 mask, u32 attribute) {
+ LOG_DEBUG(Kernel_SVC,
+ "called, address=0x{:016X}, size=0x{:X}, mask=0x{:08X}, attribute=0x{:08X}", address,
+ size, mask, attribute);
+
+ if (!Common::Is4KBAligned(address)) {
+ LOG_ERROR(Kernel_SVC, "Address not page aligned (0x{:016X})", address);
+ return ERR_INVALID_ADDRESS;
+ }
+
+ if (size == 0 || !Common::Is4KBAligned(size)) {
+ LOG_ERROR(Kernel_SVC, "Invalid size (0x{:X}). Size must be non-zero and page aligned.",
+ size);
+ return ERR_INVALID_ADDRESS;
+ }
+
+ if (!IsValidAddressRange(address, size)) {
+ LOG_ERROR(Kernel_SVC, "Address range overflowed (Address: 0x{:016X}, Size: 0x{:016X})",
+ address, size);
+ return ERR_INVALID_ADDRESS_STATE;
+ }
+
+ const auto mem_attribute = static_cast<MemoryAttribute>(attribute);
+ const auto mem_mask = static_cast<MemoryAttribute>(mask);
+ const auto attribute_with_mask = mem_attribute | mem_mask;
+
+ if (attribute_with_mask != mem_mask) {
+ LOG_ERROR(Kernel_SVC,
+ "Memory attribute doesn't match the given mask (Attribute: 0x{:X}, Mask: {:X}",
+ attribute, mask);
+ return ERR_INVALID_COMBINATION;
+ }
+
+ if ((attribute_with_mask | MemoryAttribute::Uncached) != MemoryAttribute::Uncached) {
+ LOG_ERROR(Kernel_SVC, "Specified attribute isn't equal to MemoryAttributeUncached (8).");
+ return ERR_INVALID_COMBINATION;
+ }
+
+ auto& vm_manager = Core::CurrentProcess()->VMManager();
+ if (!IsInsideAddressSpace(vm_manager, address, size)) {
+ LOG_ERROR(Kernel_SVC,
+ "Given address (0x{:016X}) is outside the bounds of the address space.", address);
+ return ERR_INVALID_ADDRESS_STATE;
+ }
+
+ return vm_manager.SetMemoryAttribute(address, size, mem_mask, mem_attribute);
}
/// Maps a memory range into a different range.
diff --git a/src/core/hle/kernel/vm_manager.cpp b/src/core/hle/kernel/vm_manager.cpp
index d3b55a51e..f39e096ca 100644
--- a/src/core/hle/kernel/vm_manager.cpp
+++ b/src/core/hle/kernel/vm_manager.cpp
@@ -37,7 +37,7 @@ static const char* GetMemoryStateName(MemoryState state) {
bool VirtualMemoryArea::CanBeMergedWith(const VirtualMemoryArea& next) const {
ASSERT(base + size == next.base);
- if (permissions != next.permissions || meminfo_state != next.meminfo_state ||
+ if (permissions != next.permissions || state != next.state || attribute != next.attribute ||
type != next.type) {
return false;
}
@@ -115,7 +115,7 @@ ResultVal<VMManager::VMAHandle> VMManager::MapMemoryBlock(VAddr target,
final_vma.type = VMAType::AllocatedMemoryBlock;
final_vma.permissions = VMAPermission::ReadWrite;
- final_vma.meminfo_state = state;
+ final_vma.state = state;
final_vma.backing_block = std::move(block);
final_vma.offset = offset;
UpdatePageTableForVMA(final_vma);
@@ -140,7 +140,7 @@ ResultVal<VMManager::VMAHandle> VMManager::MapBackingMemory(VAddr target, u8* me
final_vma.type = VMAType::BackingMemory;
final_vma.permissions = VMAPermission::ReadWrite;
- final_vma.meminfo_state = state;
+ final_vma.state = state;
final_vma.backing_memory = memory;
UpdatePageTableForVMA(final_vma);
@@ -177,7 +177,7 @@ ResultVal<VMManager::VMAHandle> VMManager::MapMMIO(VAddr target, PAddr paddr, u6
final_vma.type = VMAType::MMIO;
final_vma.permissions = VMAPermission::ReadWrite;
- final_vma.meminfo_state = state;
+ final_vma.state = state;
final_vma.paddr = paddr;
final_vma.mmio_handler = std::move(mmio_handler);
UpdatePageTableForVMA(final_vma);
@@ -189,7 +189,7 @@ VMManager::VMAIter VMManager::Unmap(VMAIter vma_handle) {
VirtualMemoryArea& vma = vma_handle->second;
vma.type = VMAType::Free;
vma.permissions = VMAPermission::None;
- vma.meminfo_state = MemoryState::Unmapped;
+ vma.state = MemoryState::Unmapped;
vma.backing_block = nullptr;
vma.offset = 0;
@@ -308,9 +308,10 @@ MemoryInfo VMManager::QueryMemory(VAddr address) const {
if (IsValidHandle(vma)) {
memory_info.base_address = vma->second.base;
+ memory_info.attributes = ToSvcMemoryAttribute(vma->second.attribute);
memory_info.permission = static_cast<u32>(vma->second.permissions);
memory_info.size = vma->second.size;
- memory_info.state = ToSvcMemoryState(vma->second.meminfo_state);
+ memory_info.state = ToSvcMemoryState(vma->second.state);
} else {
memory_info.base_address = address_space_end;
memory_info.permission = static_cast<u32>(VMAPermission::None);
@@ -321,6 +322,34 @@ MemoryInfo VMManager::QueryMemory(VAddr address) const {
return memory_info;
}
+ResultCode VMManager::SetMemoryAttribute(VAddr address, u64 size, MemoryAttribute mask,
+ MemoryAttribute attribute) {
+ constexpr auto ignore_mask = MemoryAttribute::Uncached | MemoryAttribute::DeviceMapped;
+ constexpr auto attribute_mask = ~ignore_mask;
+
+ const auto result = CheckRangeState(
+ address, size, MemoryState::FlagUncached, MemoryState::FlagUncached, VMAPermission::None,
+ VMAPermission::None, attribute_mask, MemoryAttribute::None, ignore_mask);
+
+ if (result.Failed()) {
+ return result.Code();
+ }
+
+ const auto [prev_state, prev_permissions, prev_attributes] = *result;
+ const auto new_attribute = (prev_attributes & ~mask) | (mask & attribute);
+
+ const auto carve_result = CarveVMARange(address, size);
+ if (carve_result.Failed()) {
+ return carve_result.Code();
+ }
+
+ auto vma_iter = *carve_result;
+ vma_iter->second.attribute = new_attribute;
+
+ MergeAdjacent(vma_iter);
+ return RESULT_SUCCESS;
+}
+
ResultCode VMManager::MirrorMemory(VAddr dst_addr, VAddr src_addr, u64 size, MemoryState state) {
const auto vma = FindVMA(src_addr);
@@ -364,7 +393,7 @@ void VMManager::LogLayout() const {
(u8)vma.permissions & (u8)VMAPermission::Read ? 'R' : '-',
(u8)vma.permissions & (u8)VMAPermission::Write ? 'W' : '-',
(u8)vma.permissions & (u8)VMAPermission::Execute ? 'X' : '-',
- GetMemoryStateName(vma.meminfo_state));
+ GetMemoryStateName(vma.state));
}
}
@@ -591,6 +620,66 @@ void VMManager::ClearPageTable() {
Memory::PageType::Unmapped);
}
+VMManager::CheckResults VMManager::CheckRangeState(VAddr address, u64 size, MemoryState state_mask,
+ MemoryState state, VMAPermission permission_mask,
+ VMAPermission permissions,
+ MemoryAttribute attribute_mask,
+ MemoryAttribute attribute,
+ MemoryAttribute ignore_mask) const {
+ auto iter = FindVMA(address);
+
+ // If we don't have a valid VMA handle at this point, then it means this is
+ // being called with an address outside of the address space, which is definitely
+ // indicative of a bug, as this function only operates on mapped memory regions.
+ DEBUG_ASSERT(IsValidHandle(iter));
+
+ const VAddr end_address = address + size - 1;
+ const MemoryAttribute initial_attributes = iter->second.attribute;
+ const VMAPermission initial_permissions = iter->second.permissions;
+ const MemoryState initial_state = iter->second.state;
+
+ while (true) {
+ // The iterator should be valid throughout the traversal. Hitting the end of
+ // the mapped VMA regions is unquestionably indicative of a bug.
+ DEBUG_ASSERT(IsValidHandle(iter));
+
+ const auto& vma = iter->second;
+
+ if (vma.state != initial_state) {
+ return ERR_INVALID_ADDRESS_STATE;
+ }
+
+ if ((vma.state & state_mask) != state) {
+ return ERR_INVALID_ADDRESS_STATE;
+ }
+
+ if (vma.permissions != initial_permissions) {
+ return ERR_INVALID_ADDRESS_STATE;
+ }
+
+ if ((vma.permissions & permission_mask) != permissions) {
+ return ERR_INVALID_ADDRESS_STATE;
+ }
+
+ if ((vma.attribute | ignore_mask) != (initial_attributes | ignore_mask)) {
+ return ERR_INVALID_ADDRESS_STATE;
+ }
+
+ if ((vma.attribute & attribute_mask) != attribute) {
+ return ERR_INVALID_ADDRESS_STATE;
+ }
+
+ if (end_address <= vma.EndAddress()) {
+ break;
+ }
+
+ ++iter;
+ }
+
+ return MakeResult(
+ std::make_tuple(initial_state, initial_permissions, initial_attributes & ~ignore_mask));
+}
+
u64 VMManager::GetTotalMemoryUsage() const {
LOG_WARNING(Kernel, "(STUBBED) called");
return 0xF8000000;
diff --git a/src/core/hle/kernel/vm_manager.h b/src/core/hle/kernel/vm_manager.h
index 10bacac3e..6091533bc 100644
--- a/src/core/hle/kernel/vm_manager.h
+++ b/src/core/hle/kernel/vm_manager.h
@@ -6,6 +6,7 @@
#include <map>
#include <memory>
+#include <tuple>
#include <vector>
#include "common/common_types.h"
#include "core/hle/result.h"
@@ -43,6 +44,88 @@ enum class VMAPermission : u8 {
ReadWriteExecute = Read | Write | Execute,
};
+constexpr VMAPermission operator|(VMAPermission lhs, VMAPermission rhs) {
+ return static_cast<VMAPermission>(u32(lhs) | u32(rhs));
+}
+
+constexpr VMAPermission operator&(VMAPermission lhs, VMAPermission rhs) {
+ return static_cast<VMAPermission>(u32(lhs) & u32(rhs));
+}
+
+constexpr VMAPermission operator^(VMAPermission lhs, VMAPermission rhs) {
+ return static_cast<VMAPermission>(u32(lhs) ^ u32(rhs));
+}
+
+constexpr VMAPermission operator~(VMAPermission permission) {
+ return static_cast<VMAPermission>(~u32(permission));
+}
+
+constexpr VMAPermission& operator|=(VMAPermission& lhs, VMAPermission rhs) {
+ lhs = lhs | rhs;
+ return lhs;
+}
+
+constexpr VMAPermission& operator&=(VMAPermission& lhs, VMAPermission rhs) {
+ lhs = lhs & rhs;
+ return lhs;
+}
+
+constexpr VMAPermission& operator^=(VMAPermission& lhs, VMAPermission rhs) {
+ lhs = lhs ^ rhs;
+ return lhs;
+}
+
+/// Attribute flags that can be applied to a VMA
+enum class MemoryAttribute : u32 {
+ Mask = 0xFF,
+
+ /// No particular qualities
+ None = 0,
+ /// Memory locked/borrowed for use. e.g. This would be used by transfer memory.
+ Locked = 1,
+ /// Memory locked for use by IPC-related internals.
+ LockedForIPC = 2,
+ /// Mapped as part of the device address space.
+ DeviceMapped = 4,
+ /// Uncached memory
+ Uncached = 8,
+};
+
+constexpr MemoryAttribute operator|(MemoryAttribute lhs, MemoryAttribute rhs) {
+ return static_cast<MemoryAttribute>(u32(lhs) | u32(rhs));
+}
+
+constexpr MemoryAttribute operator&(MemoryAttribute lhs, MemoryAttribute rhs) {
+ return static_cast<MemoryAttribute>(u32(lhs) & u32(rhs));
+}
+
+constexpr MemoryAttribute operator^(MemoryAttribute lhs, MemoryAttribute rhs) {
+ return static_cast<MemoryAttribute>(u32(lhs) ^ u32(rhs));
+}
+
+constexpr MemoryAttribute operator~(MemoryAttribute attribute) {
+ return static_cast<MemoryAttribute>(~u32(attribute));
+}
+
+constexpr MemoryAttribute& operator|=(MemoryAttribute& lhs, MemoryAttribute rhs) {
+ lhs = lhs | rhs;
+ return lhs;
+}
+
+constexpr MemoryAttribute& operator&=(MemoryAttribute& lhs, MemoryAttribute rhs) {
+ lhs = lhs & rhs;
+ return lhs;
+}
+
+constexpr MemoryAttribute& operator^=(MemoryAttribute& lhs, MemoryAttribute rhs) {
+ lhs = lhs ^ rhs;
+ return lhs;
+}
+
+constexpr u32 ToSvcMemoryAttribute(MemoryAttribute attribute) {
+ return static_cast<u32>(attribute & MemoryAttribute::Mask);
+}
+
// clang-format off
/// Represents memory states and any relevant flags, as used by the kernel.
/// svcQueryMemory interprets these by masking away all but the first eight
@@ -174,6 +257,16 @@ struct PageInfo {
* also backed by a single host memory allocation.
*/
struct VirtualMemoryArea {
+ /// Gets the starting (base) address of this VMA.
+ VAddr StartAddress() const {
+ return base;
+ }
+
+ /// Gets the ending address of this VMA.
+ VAddr EndAddress() const {
+ return base + size - 1;
+ }
+
/// Virtual base address of the region.
VAddr base = 0;
/// Size of the region.
@@ -181,8 +274,8 @@ struct VirtualMemoryArea {
VMAType type = VMAType::Free;
VMAPermission permissions = VMAPermission::None;
- /// Tag returned by svcQueryMemory. Not otherwise used.
- MemoryState meminfo_state = MemoryState::Unmapped;
+ MemoryState state = MemoryState::Unmapped;
+ MemoryAttribute attribute = MemoryAttribute::None;
// Settings for type = AllocatedMemoryBlock
/// Memory block backing this VMA.
@@ -299,6 +392,19 @@ public:
///
MemoryInfo QueryMemory(VAddr address) const;
+ /// Sets an attribute across the given address range.
+ ///
+ /// @param address The starting address
+ /// @param size The size of the range to set the attribute on.
+ /// @param mask The attribute mask
+ /// @param attribute The attribute to set across the given address range
+ ///
+ /// @returns RESULT_SUCCESS if successful
+ /// @returns ERR_INVALID_ADDRESS_STATE if the attribute could not be set.
+ ///
+ ResultCode SetMemoryAttribute(VAddr address, u64 size, MemoryAttribute mask,
+ MemoryAttribute attribute);
+
/**
* Scans all VMAs and updates the page table range of any that use the given vector as backing
* memory. This should be called after any operation that causes reallocation of the vector.
@@ -435,6 +541,35 @@ private:
/// Clears out the page table
void ClearPageTable();
+ using CheckResults = ResultVal<std::tuple<MemoryState, VMAPermission, MemoryAttribute>>;
+
+ /// Checks if an address range adheres to the specified states provided.
+ ///
+ /// @param address The starting address of the address range.
+ /// @param size The size of the address range.
+ /// @param state_mask The memory state mask.
+ /// @param state The state to compare the individual VMA states against,
+ /// which is done in the form of: (vma.state & state_mask) != state.
+ /// @param permission_mask The memory permissions mask.
+ /// @param permissions The permission to compare the individual VMA permissions against,
+ /// which is done in the form of:
+ /// (vma.permission & permission_mask) != permission.
+ /// @param attribute_mask The memory attribute mask.
+ /// @param attribute The memory attributes to compare the individual VMA attributes
+ /// against, which is done in the form of:
+ /// (vma.attributes & attribute_mask) != attribute.
+ /// @param ignore_mask The memory attributes to ignore during the check.
+ ///
+ /// @returns If successful, returns a tuple containing the memory attributes
+ /// (with ignored bits specified by ignore_mask unset), memory permissions, and
+ /// memory state across the memory range.
+ /// @returns If not successful, returns ERR_INVALID_ADDRESS_STATE.
+ ///
+ CheckResults CheckRangeState(VAddr address, u64 size, MemoryState state_mask, MemoryState state,
+ VMAPermission permission_mask, VMAPermission permissions,
+ MemoryAttribute attribute_mask, MemoryAttribute attribute,
+ MemoryAttribute ignore_mask) const;
+
/**
* A map covering the entirety of the managed address space, keyed by the `base` field of each
* VMA. It must always be modified by splitting or merging VMAs, so that the invariant
generated by cgit v1.2.3 (git 2.25.1) at 2024-10-30 07:02:27 +0100