From 688fc7f71f3321225f6334a1caa380115f506ce9 Mon Sep 17 00:00:00 2001 From: Andreas Sandberg Date: Tue, 18 Jun 2013 16:27:28 +0200 Subject: [PATCH] x86: Make the boot state VMX compliant This patch allows the default x86 state to be used when by CPUs that use hardware virtualization. --- src/arch/x86/system.cc | 8 ++++---- 1 file changed, 4 insertions(+), 4 deletions(-) diff --git a/src/arch/x86/system.cc b/src/arch/x86/system.cc index f99ad43c7..5d214cb37 100644 --- a/src/arch/x86/system.cc +++ b/src/arch/x86/system.cc @@ -163,7 +163,7 @@ X86System::initState() csDesc.g = 1; // Page granularity csDesc.s = 1; // Not a system segment csDesc.limitHigh = 0xF; - csDesc.limitLow = 0xFF; + csDesc.limitLow = 0xFFFF; //Because we're dealing with a pointer and I don't think it's //guaranteed that there isn't anything in a nonvirtual class between //it's beginning in memory and it's actual data, we'll use an @@ -190,7 +190,7 @@ X86System::initState() dsDesc.g = 1; // Page granularity dsDesc.s = 1; // Not a system segment dsDesc.limitHigh = 0xF; - dsDesc.limitLow = 0xFF; + dsDesc.limitLow = 0xFFFF; uint64_t dsDescVal = dsDesc; physProxy.writeBlob(GDTBase + numGDTEntries * 8, (uint8_t *)(&dsDescVal), 8); @@ -216,9 +216,9 @@ X86System::initState() tssDesc.p = 1; // Present tssDesc.d = 1; // default operand size tssDesc.g = 1; // Page granularity - tssDesc.s = 1; // Not a system segment + tssDesc.s = 0; tssDesc.limitHigh = 0xF; - tssDesc.limitLow = 0xFF; + tssDesc.limitLow = 0xFFFF; uint64_t tssDescVal = tssDesc; physProxy.writeBlob(GDTBase + numGDTEntries * 8, (uint8_t *)(&tssDescVal), 8); -- 2.30.2