From ec56a4a7b07e2943f49da273a31e3195083b1f2e Mon Sep 17 00:00:00 2001 From: Eduardo Habkost Date: Thu, 9 Mar 2017 15:12:12 -0300 Subject: 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 Message-Id: <20170309181212.18864-4-ehabkost@redhat.com> Signed-off-by: Eduardo Habkost --- include/hw/i386/pc.h | 5 +++++ 1 file changed, 5 insertions(+) (limited to 'include') diff --git a/include/hw/i386/pc.h b/include/hw/i386/pc.h index ab303c7..f278b3a 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 \ -- cgit v1.1