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commit 2b70aa524d7d12a8662cf9fcf9d6ca6d0264b5a6
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Author: Eduardo Habkost <ehabkost@redhat.com>
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Date: Thu Jun 27 15:57:43 2013 +0200
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target-i386: Set level=4 on Conroe/Penryn/Nehalem
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RH-Author: Eduardo Habkost <ehabkost@redhat.com>
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Message-id: <1372348663-1706-4-git-send-email-ehabkost@redhat.com>
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Patchwork-id: 52253
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O-Subject: [PATCH v2 3/3] target-i386: Set level=4 on Conroe/Penryn/Nehalem
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Bugzilla: 861210
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RH-Acked-by: Bandan Das <bsd@redhat.com>
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RH-Acked-by: Markus Armbruster <armbru@redhat.com>
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RH-Acked-by: Paolo Bonzini <pbonzini@redhat.com>
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Bugzilla: 861210
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(cherry picked from commit 6b11322e0f724eb0649fdc324a44288b783023ad)
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The CPUID level value on Conroe, Penryn, and Nehalem are too low. This
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causes at least one known problem: the -smp "threads" option doesn't
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work as expect if level is < 4, because thread count information is
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provided to the guest on CPUID[EAX=4,ECX=2].EAX
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Signed-off-by: Eduardo Habkost <ehabkost@redhat.com>
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Signed-off-by: Andreas Färber <afaerber@suse.de>
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Signed-off-by: Eduardo Habkost <ehabkost@redhat.com>
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---
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include/hw/i386/pc.h | 12 ++++++++++++
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target-i386/cpu.c | 6 +++---
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2 files changed, 15 insertions(+), 3 deletions(-)
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Signed-off-by: Miroslav Rezanina <mrezanin@redhat.com>
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diff --git a/include/hw/i386/pc.h b/include/hw/i386/pc.h
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index 4d6c9bf..6692728 100644
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--- a/include/hw/i386/pc.h
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+++ b/include/hw/i386/pc.h
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@@ -192,13 +192,25 @@ int e820_add_entry(uint64_t, uint64_t, uint32_t);
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.property = "model",\
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.value = stringify(2),\
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+ .driver = "Conroe-" TYPE_X86_CPU,\
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+ .property = "level",\
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+ .value = stringify(2),\
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+ },{\
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.driver = "Penryn-" TYPE_X86_CPU,\
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.property = "model",\
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.value = stringify(2),\
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+ .driver = "Penryn-" TYPE_X86_CPU,\
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+ .property = "level",\
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+ .value = stringify(2),\
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+ },{\
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.driver = "Nehalem-" TYPE_X86_CPU,\
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.property = "model",\
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.value = stringify(2),\
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+ },{\
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+ .driver = "Nehalem-" TYPE_X86_CPU,\
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+ .property = "level",\
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+ .value = stringify(2),\
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}
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#define PC_COMPAT_1_4 \
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diff --git a/target-i386/cpu.c b/target-i386/cpu.c
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index 012819a..4b2da0d 100644
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--- a/target-i386/cpu.c
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+++ b/target-i386/cpu.c
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@@ -669,7 +669,7 @@ static x86_def_t builtin_x86_defs[] = {
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},
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{
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.name = "Conroe",
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- .level = 2,
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+ .level = 4,
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.vendor = CPUID_VENDOR_INTEL,
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.family = 6,
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.model = 15,
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@@ -691,7 +691,7 @@ static x86_def_t builtin_x86_defs[] = {
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},
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{
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.name = "Penryn",
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- .level = 2,
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+ .level = 4,
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.vendor = CPUID_VENDOR_INTEL,
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.family = 6,
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.model = 23,
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@@ -714,7 +714,7 @@ static x86_def_t builtin_x86_defs[] = {
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},
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{
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.name = "Nehalem",
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- .level = 2,
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+ .level = 4,
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.vendor = CPUID_VENDOR_INTEL,
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.family = 6,
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.model = 26,
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