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author | Gabe Black <gblack@eecs.umich.edu> | 2008-10-12 13:28:54 -0700 |
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committer | Gabe Black <gblack@eecs.umich.edu> | 2008-10-12 13:28:54 -0700 |
commit | 557bde43c331024eb5cecf4093a24a5b7a9cc266 (patch) | |
tree | b5bf7d105deb94b19098c431263aa6304bcae333 /src/arch/x86/x86_traits.hh | |
parent | e4590131825d27293d9642d2ac118ff03cc894f4 (diff) | |
download | gem5-557bde43c331024eb5cecf4093a24a5b7a9cc266.tar.xz |
X86: Make APICs communicate through the memory system.
Diffstat (limited to 'src/arch/x86/x86_traits.hh')
-rw-r--r-- | src/arch/x86/x86_traits.hh | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/src/arch/x86/x86_traits.hh b/src/arch/x86/x86_traits.hh index 6b4671a08..be7572517 100644 --- a/src/arch/x86/x86_traits.hh +++ b/src/arch/x86/x86_traits.hh @@ -93,6 +93,7 @@ namespace X86ISA const Addr PhysAddrPrefixIO = ULL(0x8000000000000000); const Addr PhysAddrPrefixPciConfig = ULL(0xC000000000000000); const Addr PhysAddrPrefixLocalAPIC = ULL(0xA000000000000000); + const Addr PhysAddrPrefixInterrupts = ULL(0x2000000000000000); // Each APIC gets two pages. One page is used for local apics to field // accesses from the CPU, and the other is for all APICs to communicate. const Addr PhysAddrAPICRangeSize = 1 << 12; @@ -115,6 +116,13 @@ namespace X86ISA assert(addr < (1 << 12)); return PhysAddrPrefixLocalAPIC | (id * (1 << 12)) | addr; } + + static inline Addr + x86InterruptAddress(const uint8_t id, const uint16_t addr) + { + assert(addr < PhysAddrAPICRangeSize); + return PhysAddrPrefixInterrupts | (id * PhysAddrAPICRangeSize) | addr; + } } #endif //__ARCH_X86_X86TRAITS_HH__ |