800917b5a2
- Update to Xen 4.1.2_rc2 c/s 23152 - bnc#716695 - domUs using tap devices will not start updated multi-xvdp.patch - Upstream patches from Jan 23803-intel-pmu-models.patch 23800-x86_64-guest-addr-range.patch 23795-intel-ich10-quirk.patch 23804-x86-IPI-counts.patch - bnc#706106 - Inconsistent reporting of VM names during migration xend-migration-domname-fix.patch - bnc#712823 - L3:Xen guest does not start reliable when rebooted xend-vcpu-affinity-fix.patch OBS-URL: https://build.opensuse.org/package/show/Virtualization/xen?expand=0&rev=143
110 lines
3.6 KiB
Diff
110 lines
3.6 KiB
Diff
# HG changeset patch
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# User Kevin Tian <kevin.tian@intel.com>
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# Date 1314800303 -3600
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# Node ID 42d76c68b2bfbedee3e5f79d32344e14bce48b0f
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# Parent 51983821efa4db4040ae1c5063a4404791597699
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x86: add irq count for IPIs
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such count is useful to assist decision make in cpuidle governor,
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while w/o this patch only device interrupts through do_IRQ is
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currently counted.
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Signed-off-by: Kevin Tian <kevin.tian@intel.com>
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Index: xen-4.1.2-testing/xen/arch/x86/apic.c
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===================================================================
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--- xen-4.1.2-testing.orig/xen/arch/x86/apic.c
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+++ xen-4.1.2-testing/xen/arch/x86/apic.c
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@@ -1372,6 +1372,7 @@ fastcall void smp_apic_timer_interrupt(s
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struct cpu_user_regs *old_regs = set_irq_regs(regs);
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ack_APIC_irq();
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perfc_incr(apic_timer);
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+ this_cpu(irq_count)++;
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raise_softirq(TIMER_SOFTIRQ);
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set_irq_regs(old_regs);
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}
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@@ -1393,6 +1394,7 @@ fastcall void smp_spurious_interrupt(str
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unsigned long v;
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struct cpu_user_regs *old_regs = set_irq_regs(regs);
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+ this_cpu(irq_count)++;
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irq_enter();
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/*
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@@ -1428,6 +1430,7 @@ fastcall void smp_error_interrupt(struct
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unsigned long v, v1;
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struct cpu_user_regs *old_regs = set_irq_regs(regs);
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+ this_cpu(irq_count)++;
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irq_enter();
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/* First tickle the hardware, only then report what went on. -- REW */
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v = apic_read(APIC_ESR);
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@@ -1459,6 +1462,7 @@ fastcall void smp_pmu_apic_interrupt(str
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{
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struct cpu_user_regs *old_regs = set_irq_regs(regs);
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ack_APIC_irq();
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+ this_cpu(irq_count)++;
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hvm_do_pmu_interrupt(regs);
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set_irq_regs(old_regs);
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}
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Index: xen-4.1.2-testing/xen/arch/x86/cpu/mcheck/mce_intel.c
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===================================================================
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--- xen-4.1.2-testing.orig/xen/arch/x86/cpu/mcheck/mce_intel.c
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+++ xen-4.1.2-testing/xen/arch/x86/cpu/mcheck/mce_intel.c
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@@ -66,6 +66,7 @@ static void (*vendor_thermal_interrupt)(
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fastcall void smp_thermal_interrupt(struct cpu_user_regs *regs)
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{
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struct cpu_user_regs *old_regs = set_irq_regs(regs);
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+ this_cpu(irq_count)++;
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irq_enter();
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vendor_thermal_interrupt(regs);
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irq_exit();
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@@ -1094,6 +1095,7 @@ fastcall void smp_cmci_interrupt(struct
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struct cpu_user_regs *old_regs = set_irq_regs(regs);
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ack_APIC_irq();
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+ this_cpu(irq_count)++;
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irq_enter();
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mctc = mcheck_mca_logout(
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Index: xen-4.1.2-testing/xen/arch/x86/io_apic.c
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===================================================================
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--- xen-4.1.2-testing.orig/xen/arch/x86/io_apic.c
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+++ xen-4.1.2-testing/xen/arch/x86/io_apic.c
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@@ -434,6 +434,7 @@ fastcall void smp_irq_move_cleanup_inter
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struct cpu_user_regs *old_regs = set_irq_regs(regs);
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ack_APIC_irq();
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+ this_cpu(irq_count)++;
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irq_enter();
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me = smp_processor_id();
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Index: xen-4.1.2-testing/xen/arch/x86/smp.c
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===================================================================
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--- xen-4.1.2-testing.orig/xen/arch/x86/smp.c
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+++ xen-4.1.2-testing/xen/arch/x86/smp.c
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@@ -221,6 +221,7 @@ fastcall void smp_invalidate_interrupt(v
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{
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ack_APIC_irq();
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perfc_incr(ipis);
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+ this_cpu(irq_count)++;
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irq_enter();
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if ( !__sync_local_execstate() ||
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(flush_flags & (FLUSH_TLB_GLOBAL | FLUSH_CACHE)) )
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@@ -385,6 +386,7 @@ fastcall void smp_event_check_interrupt(
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struct cpu_user_regs *old_regs = set_irq_regs(regs);
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ack_APIC_irq();
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perfc_incr(ipis);
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+ this_cpu(irq_count)++;
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set_irq_regs(old_regs);
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}
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@@ -421,6 +423,7 @@ fastcall void smp_call_function_interrup
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ack_APIC_irq();
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perfc_incr(ipis);
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+ this_cpu(irq_count)++;
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__smp_call_function_interrupt();
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set_irq_regs(old_regs);
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}
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