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| author | Eduardo Habkost <ehabkost@redhat.com> | 2017-03-09 15:12:11 -0300 |
|---|---|---|
| committer | Eduardo Habkost <ehabkost@redhat.com> | 2017-03-10 15:01:08 -0300 |
| commit | 40e80ee4113ad957b633cbdddb7423952bb76974 (patch) | |
| tree | 54df8544831856ced94977110910f38849288a0d /target/i386/cpu.c | |
| parent | 20271d484069f154fb262507e63adc3a37e885d2 (diff) | |
| download | qemu-40e80ee4113ad957b633cbdddb7423952bb76974.zip qemu-40e80ee4113ad957b633cbdddb7423952bb76974.tar.gz qemu-40e80ee4113ad957b633cbdddb7423952bb76974.tar.bz2 | |
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>
Diffstat (limited to 'target/i386/cpu.c')
0 files changed, 0 insertions, 0 deletions