Patchwork [RHEL6,qemu-kvm,10/11] add Westmere as a qemu cpu model

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Submitter Eduardo Habkost
Date June 2, 2011, 7:13 p.m.
Message ID <1307041990-26194-11-git-send-email-ehabkost@redhat.com>
Download mbox | patch
Permalink /patch/98482/
State New
Headers show

Comments

Eduardo Habkost - June 2, 2011, 7:13 p.m.
From: john cooper <john.cooper@redhat.com>

This patch adds Westmere as a qemu cpu model.  The only
additional guest visible feature of a Westmere relative
to Nehalem is the inclusion of AES instructions.  However
as other non-ABI visible modifications exist along with
fabrication changes, the CPUID data of the corresponding
deployed silicon was altered slightly to reflect this.

We've seen isolated cases where apparently unrelated yet
slightly incoherent CPUID data has caused problems, most
notably during guest boot.  Providing Westmere as a
model separate fro Nehalem allows us to more easily address
such quirks.

[ehabkost: edited commit message to have a better Subject line]

Signed-off-by: john cooper <john.cooper@redhat.com>
Signed-off-by: Eduardo Habkost <ehabkost@redhat.com>
---
 sysconfigs/target/target-x86_64.conf |   14 ++++++++++++++
 1 files changed, 14 insertions(+), 0 deletions(-)

Patch

diff --git a/sysconfigs/target/target-x86_64.conf b/sysconfigs/target/target-x86_64.conf
index 3874ff1..fcae2dd 100644
--- a/sysconfigs/target/target-x86_64.conf
+++ b/sysconfigs/target/target-x86_64.conf
@@ -43,6 +43,20 @@ 
    model_id = "Intel Core i7 9xx (Nehalem Class Core i7)"
 
 [cpudef]
+   name = "Westmere"
+   level = "11"
+   vendor = "GenuineIntel"
+   family = "6"
+   model = "44"
+   stepping = "1"
+   feature_edx = "sse2 sse fxsr mmx pat cmov pge sep apic cx8 mce pae msr tsc pse de fpu    mtrr clflush mca pse36"
+   feature_ecx = "sse3 cx16 ssse3 sse4.1 sse4.2 x2apic popcnt aes"
+   extfeature_edx = "fxsr mmx pat cmov pge apic cx8 mce pae msr tsc pse de fpu    lm syscall nx"
+   extfeature_ecx = "lahf_lm"
+   xlevel = "0x8000000A"
+   model_id = "Westmere E56xx/L56xx/X56xx (Nehalem-C)"
+
+[cpudef]
    name = "Opteron_G1"
    level = "5"
    vendor = "AuthenticAMD"