Fix sent to kernel team mailing list for review and inclusion into 4.4
Xenial linux kernel: https://lists.ubuntu.com/archives/kernel-
team/2016-February/072324.html
** Description changed:
Since 4.4, I have not been able to boot GNU Hurd Kernels using KVM QEMU.
I tracked this regression down to commit e8dd2d2d641c ("Silence compiler
warning in arch/x86/kvm/emulate.c", 2015-09-06)
This has been recently fixed with upstream commit
0c1d77f4ba5cc9c05a29adca3d6466cdf4969b70:
- KVM: x86: fix conversion of addresses to linear in 32-bit protected mode
-
- Commit e8dd2d2d641c ("Silence compiler warning in arch/x86/kvm/emulate.c",
- 2015-09-06) broke boot of the Hurd. The bug is that the "default:"
- case actually could modify "la", but after the patch this change is
- not reflected in *linear.
-
- The bug is visible whenever a non-zero segment base causes the linear
- address to wrap around the 4GB mark.
-
- Fixes: e8dd2d2d641cb2724ee10e76c0ad02e04289c017
- Cc: [email protected]
- Reported-by: Aurelien Jarno <[email protected]>
- Tested-by: Aurelien Jarno <[email protected]>
- Signed-off-by: Paolo Bonzini <[email protected]>
+ KVM: x86: fix conversion of addresses to linear in 32-bit protected mode
+
+ Commit e8dd2d2d641c ("Silence compiler warning in arch/x86/kvm/emulate.c",
+ 2015-09-06) broke boot of the Hurd. The bug is that the "default:"
+ case actually could modify "la", but after the patch this change is
+ not reflected in *linear.
+
+ The bug is visible whenever a non-zero segment base causes the linear
+ address to wrap around the 4GB mark.
+
+ Fixes: e8dd2d2d641cb2724ee10e76c0ad02e04289c017
+ Cc: [email protected]
+ Reported-by: Aurelien Jarno <[email protected]>
+ Tested-by: Aurelien Jarno <[email protected]>
+ Signed-off-by: Paolo Bonzini <[email protected]>
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https://bugs.launchpad.net/bugs/1550596
Title:
kvm fails to boot GNU Hurd kernels with 4.4 Xenial kernel
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