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arch-x86: Adds rdtscp flag to cpuid for X86KvmCPU

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The rdtscp instruction is supported by gem5, so the X86KvmCPU
cpuid flags should be updated accordingly. Otherwise, KVM
needlessly crashes upon executing rdtscp.

Change-Id: If79017e60cbdf0757e929f07e56dba64322846bb
Signed-off-by: Kevin Loughlin <kevlough@umich.edu>
Reviewed-on: https://gem5-review.googlesource.com/c/public/gem5/+/41633
Reviewed-by: Gabe Black <gabe.black@gmail.com>
Maintainer: Gabe Black <gabe.black@gmail.com>
Tested-by: kokoro <noreply+kokoro@google.com>
This commit is contained in:
Kevin Loughlin
2021-02-18 14:52:23 -05:00
parent 57bdbe3b7d
commit b05731f927
1 changed files with 2 additions and 2 deletions
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4
src/arch/x86/cpuid.cc
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@@ -104,7 +104,7 @@ namespace X86ISA {
break;
case FamilyModelSteppingBrandFeatures:
result = CpuidResult(0x00020f51, 0x00000405,
0xe3d3fbff, 0x00000001);
0xebd3fbff, 0x00000001);
break;
case NameString1:
case NameString2:
@@ -165,7 +165,7 @@ namespace X86ISA {
break;
case FamilyModelStepping:
result = CpuidResult(0x00020f51, 0x00000805,
0xe7dbfbff, 0x00000209);
0xefdbfbff, 0x00000209);
break;
case ExtendedFeatures:
result = CpuidResult(0x00000000, 0x01800000,