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commit 891c6ba393323686ace2b5ecd9c35bbde6165f2a
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Author: Eduardo Habkost <ehabkost@redhat.com>
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Date: Thu Jun 27 15:57:42 2013 +0200
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target-i386: Update model values on Conroe/Penryn/Nehalem CPU models
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RH-Author: Eduardo Habkost <ehabkost@redhat.com>
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Message-id: <1372348663-1706-3-git-send-email-ehabkost@redhat.com>
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Patchwork-id: 52252
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O-Subject: [PATCH v2 2/3] target-i386: Update model values on Conroe/Penryn/Nehalem CPU models
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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 ffce9ebbb69363dfe7605585cdad58ea3847edf4)
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The CPUID model values on Conroe, Penryn, and Nehalem are too
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conservative and don't reflect the values found on real Conroe, Penryn,
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and Nehalem CPUs.
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This causes at least one known problems: Windows XP disables sysenter
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when (family == 6 && model <= 2), but Skype tries to use the sysenter
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instruction anyway because it is reported as available on CPUID, making
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it crash.
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This patch sets appropriate model values that correspond to real Conroe,
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Penryn, and Nehalem CPUs.
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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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hw/i386/pc_piix.c | 4 ++++
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hw/i386/pc_q35.c | 4 ++++
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include/hw/i386/pc.h | 16 ++++++++++++++++
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target-i386/cpu.c | 6 +++---
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4 files changed, 27 insertions(+), 3 deletions(-)
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Signed-off-by: Miroslav Rezanina <mrezanin@redhat.com>
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diff --git a/hw/i386/pc_piix.c b/hw/i386/pc_piix.c
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index d8d74a3..b52034d 100644
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--- a/hw/i386/pc_piix.c
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+++ b/hw/i386/pc_piix.c
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@@ -338,6 +338,10 @@ static QEMUMachine pc_i440fx_machine_v1_5 = {
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.hot_add_cpu = pc_hot_add_cpu,
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.max_cpus = 255,
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.is_default = 1,
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+ .compat_props = (GlobalProperty[]) {
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+ PC_COMPAT_1_5,
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+ { /* end of list */ }
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+ },
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DEFAULT_MACHINE_OPTIONS,
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};
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diff --git a/hw/i386/pc_q35.c b/hw/i386/pc_q35.c
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index 9bcad00..0092032 100644
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--- a/hw/i386/pc_q35.c
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+++ b/hw/i386/pc_q35.c
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@@ -224,6 +224,10 @@ static QEMUMachine pc_q35_machine_v1_5 = {
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.init = pc_q35_init,
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.hot_add_cpu = pc_hot_add_cpu,
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.max_cpus = 255,
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+ .compat_props = (GlobalProperty[]) {
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+ PC_COMPAT_1_5,
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+ { /* end of list */ }
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+ },
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DEFAULT_MACHINE_OPTIONS,
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};
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diff --git a/include/hw/i386/pc.h b/include/hw/i386/pc.h
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index 0242fec..4d6c9bf 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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@@ -186,7 +186,23 @@ int pvpanic_init(ISABus *bus);
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int e820_add_entry(uint64_t, uint64_t, uint32_t);
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+#define PC_COMPAT_1_5 \
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+ {\
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+ .driver = "Conroe-" 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 = "Penryn-" 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 = "model",\
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+ .value = stringify(2),\
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+ }
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+
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#define PC_COMPAT_1_4 \
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+ PC_COMPAT_1_5, \
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{\
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.driver = "scsi-hd",\
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.property = "discard_granularity",\
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diff --git a/target-i386/cpu.c b/target-i386/cpu.c
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index ae8e682..012819a 100644
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--- a/target-i386/cpu.c
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+++ b/target-i386/cpu.c
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@@ -672,7 +672,7 @@ static x86_def_t builtin_x86_defs[] = {
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.level = 2,
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.vendor = CPUID_VENDOR_INTEL,
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.family = 6,
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- .model = 2,
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+ .model = 15,
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.stepping = 3,
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.features[FEAT_1_EDX] =
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CPUID_SSE2 | CPUID_SSE | CPUID_FXSR | CPUID_MMX |
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@@ -694,7 +694,7 @@ static x86_def_t builtin_x86_defs[] = {
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.level = 2,
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.vendor = CPUID_VENDOR_INTEL,
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.family = 6,
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- .model = 2,
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+ .model = 23,
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.stepping = 3,
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.features[FEAT_1_EDX] =
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CPUID_SSE2 | CPUID_SSE | CPUID_FXSR | CPUID_MMX |
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@@ -717,7 +717,7 @@ static x86_def_t builtin_x86_defs[] = {
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.level = 2,
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.vendor = CPUID_VENDOR_INTEL,
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.family = 6,
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- .model = 2,
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+ .model = 26,
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.stepping = 3,
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.features[FEAT_1_EDX] =
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CPUID_SSE2 | CPUID_SSE | CPUID_FXSR | CPUID_MMX |
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