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| author | Eduardo Habkost | 2017-03-09 19:12:12 +0100 |
|---|---|---|
| committer | Eduardo Habkost | 2017-03-10 19:01:09 +0100 |
| commit | ec56a4a7b07e2943f49da273a31e3195083b1f2e (patch) | |
| tree | b5a466451b05e13429e613d9c8e75507e8d318d7 /include/hw/i386/pc.h | |
| parent | i386/kvm: Blacklist TSX on known broken hosts (diff) | |
| download | qemu-ec56a4a7b07e2943f49da273a31e3195083b1f2e.tar.gz qemu-ec56a4a7b07e2943f49da273a31e3195083b1f2e.tar.xz qemu-ec56a4a7b07e2943f49da273a31e3195083b1f2e.zip | |
i386: Change stepping of Haswell to non-blacklisted value
glibc blacklists TSX on Haswell CPUs with model==60 and
stepping < 4. To make the Haswell CPU model more useful, make
those guests actually use TSX by changing CPU stepping to 4.
References:
* glibc commit 2702856bf45c82cf8e69f2064f5aa15c0ceb6359
https://sourceware.org/git/?p=glibc.git;a=commit;h=2702856bf45c82cf8e69f2064f5aa15c0ceb6359
Signed-off-by: Eduardo Habkost <ehabkost@redhat.com>
Message-Id: <20170309181212.18864-4-ehabkost@redhat.com>
Signed-off-by: Eduardo Habkost <ehabkost@redhat.com>
Diffstat (limited to 'include/hw/i386/pc.h')
| -rw-r--r-- | include/hw/i386/pc.h | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/include/hw/i386/pc.h b/include/hw/i386/pc.h index ab303c7fee..f278b3ae89 100644 --- a/include/hw/i386/pc.h +++ b/include/hw/i386/pc.h @@ -389,6 +389,11 @@ bool e820_get_entry(int, uint32_t, uint64_t *, uint64_t *); .driver = TYPE_X86_CPU,\ .property = "vmware-cpuid-freq",\ .value = "off",\ + },\ + {\ + .driver = "Haswell-" TYPE_X86_CPU,\ + .property = "stepping",\ + .value = "1",\ }, #define PC_COMPAT_2_7 \ |