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| author | Alexandru Dutu <alexandru.dutu@amd.com> | 2014-11-23 18:01:09 -0800 |
|---|---|---|
| committer | Alexandru Dutu <alexandru.dutu@amd.com> | 2014-11-23 18:01:09 -0800 |
| commit | 1f539f13c32ad5a9187d56a098d4c857639b0e05 (patch) | |
| tree | 7618c3b946d9c25d9b22018f226eee77b6de4aaf /src/arch/arm/pagetable.hh | |
| parent | c11bcb8119273ef91c40a25b8fd9471a887d0ee5 (diff) | |
| download | gem5-1f539f13c32ad5a9187d56a098d4c857639b0e05.tar.xz | |
mem: Page Table map api modification
This patch adds uncacheable/cacheable and read-only/read-write attributes to
the map method of PageTableBase. It also modifies the constructor of TlbEntry
structs for all architectures to consider the new attributes.
Diffstat (limited to 'src/arch/arm/pagetable.hh')
| -rw-r--r-- | src/arch/arm/pagetable.hh | 11 |
1 files changed, 7 insertions, 4 deletions
diff --git a/src/arch/arm/pagetable.hh b/src/arch/arm/pagetable.hh index 591ec9807..c1956cf09 100644 --- a/src/arch/arm/pagetable.hh +++ b/src/arch/arm/pagetable.hh @@ -147,18 +147,21 @@ struct TlbEntry bool pxn; // Privileged Execute Never (LPAE only) //Construct an entry that maps to physical address addr for SE mode - TlbEntry(Addr _asn, Addr _vaddr, Addr _paddr) : + TlbEntry(Addr _asn, Addr _vaddr, Addr _paddr, + bool uncacheable, bool read_only) : pfn(_paddr >> PageShift), size(PageBytes - 1), vpn(_vaddr >> PageShift), attributes(0), lookupLevel(L1), asid(_asn), vmid(0), N(0), - innerAttrs(0), outerAttrs(0), ap(0), hap(0x3), + innerAttrs(0), outerAttrs(0), ap(read_only ? 0x3 : 0), hap(0x3), domain(DomainType::Client), mtype(MemoryType::StronglyOrdered), longDescFormat(false), isHyp(false), global(false), valid(true), - ns(true), nstid(true), el(0), nonCacheable(false), shareable(false), - outerShareable(false), xn(0), pxn(0) + ns(true), nstid(true), el(0), nonCacheable(uncacheable), + shareable(false), outerShareable(false), xn(0), pxn(0) { // no restrictions by default, hap = 0x3 // @todo Check the memory type + if (read_only) + warn("ARM TlbEntry does not support read-only mappings\n"); } TlbEntry() : |