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From f28b055b5d576b9e5e87aa18bf655b53eff1571c Mon Sep 17 00:00:00 2001
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From: Eduardo Habkost <ehabkost@redhat.com>
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Date: Tue, 20 Aug 2013 15:09:51 +0200
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Subject: [PATCH 23/28] pc: SandyBridge rhel6.x compat fixes
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RH-Author: Eduardo Habkost <ehabkost@redhat.com>
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Message-id: <1377011392-9336-7-git-send-email-ehabkost@redhat.com>
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Patchwork-id: 53614
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O-Subject: [RHEL7 PATCH 6/7] pc: SandyBridge rhel6.x compat fixes
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Bugzilla: 918907
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RH-Acked-by: Markus Armbruster <armbru@redhat.com>
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RH-Acked-by: Bandan Das <bsd@redhat.com>
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RH-Acked-by: Miroslav Rezanina <mrezanin@redhat.com>
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Bugzilla: 918907
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Upstream status: not applicable
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This patch implements the following changes, to match the SandyBridge
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CPU features on RHEL-6:
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* rhel6.3.0 and older don't have tsc-deadline on SandyBridge
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(commit 10ce057)
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* rhel6.5.0 and older don't have rdtscp on SandyBridge
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Signed-off-by: Eduardo Habkost <ehabkost@raisama.net>
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---
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hw/i386/pc_piix.c | 4 ++++
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1 file changed, 4 insertions(+)
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Signed-off-by: Miroslav Rezanina <mrezanin@redhat.com>
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---
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hw/i386/pc_piix.c | 4 ++++
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1 files changed, 4 insertions(+), 0 deletions(-)
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diff --git a/hw/i386/pc_piix.c b/hw/i386/pc_piix.c
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index 846e2ce..fb5256e 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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@@ -875,6 +875,8 @@ static void pc_init_rhel650(QEMUMachineInitArgs *args)
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CPUID_EXT2_CX8 | CPUID_EXT2_MCE | CPUID_EXT2_PAE | CPUID_EXT2_MSR |
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CPUID_EXT2_TSC | CPUID_EXT2_PSE | CPUID_EXT2_DE | CPUID_EXT2_FPU,
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0);
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+ x86_cpu_compat_set_features("SandyBridge", FEAT_8000_0001_EDX,
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+ 0, CPUID_EXT2_RDTSCP);
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pc_init_rhel700(args);
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}
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@@ -961,6 +963,8 @@ static void pc_init_rhel630(QEMUMachineInitArgs *args)
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{
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disable_kvm_pv_eoi();
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enable_compat_apic_id_mode();
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+ x86_cpu_compat_set_features("SandyBridge", FEAT_1_ECX,
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+ 0, CPUID_EXT_TSC_DEADLINE_TIMER);
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pc_init_rhel640(args);
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}
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--
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1.7.1
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