| commit | 40e80ee4113ad957b633cbdddb7423952bb76974 | |
| author | Eduardo Habkost <ehabkost@redhat.com> | |
| Thu, 9 Mar 2017 18:12:11 +0000 (9 15:12 -0300) | ||
| committer | Eduardo Habkost <ehabkost@redhat.com> | |
| Fri, 10 Mar 2017 18:01:08 +0000 (10 15:01 -0300) | ||
| tree | 54df8544831856ced94977110910f38849288a0d | treesnapshot (tar.gz zip) |
| parent | 20271d484069f154fb262507e63adc3a37e885d2 | commitdiff |
i386/kvm: Blacklist TSX on known broken hosts
Some Intel CPUs are known to have a broken TSX implementation. A
microcode update from Intel disabled TSX on those CPUs, but
GET_SUPPORTED_CPUID might be reporting it as supported if the
hosts were not updated yet.
Manually fixup the GET_SUPPORTED_CPUID data to ensure we will
never enable TSX when running on those hosts.
Reference:
* glibc commit 2702856bf45c82cf8e69f2064f5aa15c0ceb6359:
https://sourceware.org/git/?p=glibc.git;a=commit;h=2702856bf45c82cf8e69f2064f5aa15c0ceb6359
Signed-off-by: Eduardo Habkost <ehabkost@redhat.com>
Message-Id: <20170309181212.18864-3-ehabkost@redhat.com>
Signed-off-by: Eduardo Habkost <ehabkost@redhat.com>
Some Intel CPUs are known to have a broken TSX implementation. A
microcode update from Intel disabled TSX on those CPUs, but
GET_SUPPORTED_CPUID might be reporting it as supported if the
hosts were not updated yet.
Manually fixup the GET_SUPPORTED_CPUID data to ensure we will
never enable TSX when running on those hosts.
Reference:
* glibc commit 2702856bf45c82cf8e69f2064f5aa15c0ceb6359:
https://sourceware.org/git/?p=glibc.git;a=commit;h=2702856bf45c82cf8e69f2064f5aa15c0ceb6359
Signed-off-by: Eduardo Habkost <ehabkost@redhat.com>
Message-Id: <20170309181212.18864-3-ehabkost@redhat.com>
Signed-off-by: Eduardo Habkost <ehabkost@redhat.com>
| target/i386/kvm.c | diffblobblamehistory |