From 7dbf41357d6061170530601022c123eaf8fc2934 Mon Sep 17 00:00:00 2001 From: Patrick Williams Date: Tue, 14 Sep 2010 18:09:10 -0500 Subject: Various VMM updates. 1) Do SLBIA prior to creating initial SLB entry. 2) Do proper TLBIEs. 3) Set Ks/Kp in SLB properly. 4) Test data storage exception on code space. --- src/include/kernel/vmmmgr.H | 18 ++++++++++++++++++ 1 file changed, 18 insertions(+) (limited to 'src/include') diff --git a/src/include/kernel/vmmmgr.H b/src/include/kernel/vmmmgr.H index a8bb5ae3f..adf699e85 100644 --- a/src/include/kernel/vmmmgr.H +++ b/src/include/kernel/vmmmgr.H @@ -93,6 +93,24 @@ class VmmManager pte.a &= ~0x01; pte.a |= (valid ? 0x1 : 0x0); + + if (!valid) + { + asm volatile("ptesync" ::: "memory"); + + register uint64_t rS = 0, rB = 0; + rB = (getTid(pte) << 11) // VA[0:54). + | (((uint64_t)&pte) & 0x3FF8) >> 7; // VA[55:65]. + rB <<= 12; // Put in rB[0:51]. + rB |= 0x0100; // B = 01 (1TB). + + // TLBIE isn't correct in gcc, hand code asm. + asm volatile(".long 0x7c000264 | (%0 << 11) | (%1 << 21)" :: + "r"(rB), "r"(rS) : "memory"); + + asm volatile("eieio" ::: "memory"); + asm volatile("tlbsync" ::: "memory"); + } asm volatile("ptesync" ::: "memory"); } -- cgit v1.2.1