From f28b055b5d576b9e5e87aa18bf655b53eff1571c Mon Sep 17 00:00:00 2001 From: Eduardo Habkost Date: Tue, 20 Aug 2013 15:09:51 +0200 Subject: [PATCH 23/28] pc: SandyBridge rhel6.x compat fixes RH-Author: Eduardo Habkost Message-id: <1377011392-9336-7-git-send-email-ehabkost@redhat.com> Patchwork-id: 53614 O-Subject: [RHEL7 PATCH 6/7] pc: SandyBridge rhel6.x compat fixes Bugzilla: 918907 RH-Acked-by: Markus Armbruster RH-Acked-by: Bandan Das RH-Acked-by: Miroslav Rezanina Bugzilla: 918907 Upstream status: not applicable This patch implements the following changes, to match the SandyBridge CPU features on RHEL-6: * rhel6.3.0 and older don't have tsc-deadline on SandyBridge (commit 10ce057) * rhel6.5.0 and older don't have rdtscp on SandyBridge Signed-off-by: Eduardo Habkost --- hw/i386/pc_piix.c | 4 ++++ 1 file changed, 4 insertions(+) Signed-off-by: Miroslav Rezanina --- hw/i386/pc_piix.c | 4 ++++ 1 files changed, 4 insertions(+), 0 deletions(-) diff --git a/hw/i386/pc_piix.c b/hw/i386/pc_piix.c index 846e2ce..fb5256e 100644 --- a/hw/i386/pc_piix.c +++ b/hw/i386/pc_piix.c @@ -875,6 +875,8 @@ static void pc_init_rhel650(QEMUMachineInitArgs *args) CPUID_EXT2_CX8 | CPUID_EXT2_MCE | CPUID_EXT2_PAE | CPUID_EXT2_MSR | CPUID_EXT2_TSC | CPUID_EXT2_PSE | CPUID_EXT2_DE | CPUID_EXT2_FPU, 0); + x86_cpu_compat_set_features("SandyBridge", FEAT_8000_0001_EDX, + 0, CPUID_EXT2_RDTSCP); pc_init_rhel700(args); } @@ -961,6 +963,8 @@ static void pc_init_rhel630(QEMUMachineInitArgs *args) { disable_kvm_pv_eoi(); enable_compat_apic_id_mode(); + x86_cpu_compat_set_features("SandyBridge", FEAT_1_ECX, + 0, CPUID_EXT_TSC_DEADLINE_TIMER); pc_init_rhel640(args); } -- 1.7.1