Gabe Black has uploaded this change for review. (
https://gem5-review.googlesource.com/c/public/gem5/+/57050 )
Change subject: arch-x86: Propogate the unusable bit to KVM.
......................................................................
arch-x86: Propogate the unusable bit to KVM.
The unusable bit is now used by gem5. Pass that bit through to KVM
instead of a dummy value 0.
Change-Id: I59912b478a3de95684fb0cc65ff5703d201df8cb
---
M src/arch/x86/kvm/x86_cpu.cc
1 file changed, 13 insertions(+), 6 deletions(-)
diff --git a/src/arch/x86/kvm/x86_cpu.cc b/src/arch/x86/kvm/x86_cpu.cc
index af041a5..49274da 100644
--- a/src/arch/x86/kvm/x86_cpu.cc
+++ b/src/arch/x86/kvm/x86_cpu.cc
@@ -741,12 +741,7 @@
kvm_seg.l = attr.longMode;
kvm_seg.g = attr.granularity;
kvm_seg.avl = attr.avl;
-
- // A segment is normally unusable when the selector is zero. There
- // is a attr.unusable flag in gem5, but it seems unused. qemu
- // seems to set this to 0 all the time, so we just do the same and
- // hope for the best.
- kvm_seg.unusable = 0;
+ kvm_seg.unusable = attr.unusable;
}
static inline void
--
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Gerrit-Project: public/gem5
Gerrit-Branch: develop
Gerrit-Change-Id: I59912b478a3de95684fb0cc65ff5703d201df8cb
Gerrit-Change-Number: 57050
Gerrit-PatchSet: 1
Gerrit-Owner: Gabe Black <[email protected]>
Gerrit-MessageType: newchange
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