99885eadf2
xen-4.4.1-testing-src.tar.bz2 - Dropped patches now contained in tarball 53d7b781-x86-cpu-undo-BIOS-CPUID-max_leaf-limit-earlier.patch 53df71c7-lz4-check-for-underruns.patch 53e47d6b-x86_emulate-properly-do-IP-updates-and-other-side-effects.patch - bnc#882089 - Windows 2012 R2 fails to boot up with greater than 60 vcpus 53df727b-x86-HVM-extend-LAPIC-shortcuts-around-P2M-lookups.patch 53e8be5f-x86-vHPET-use-rwlock-instead-of-simple-one.patch 53ff3659-x86-consolidate-boolean-inputs-in-hvm-and-p2m.patch 53ff36ae-x86-hvm-treat-non-insn-fetch-NPF-also-as-read-violations.patch 53ff36d5-x86-mem_event-deliver-gla-fault-EPT-violation-information.patch 54005472-EPT-utilize-GLA-GPA-translation-known-for-certain-faults.patch - Upstream patches from Jan 53f737b1-VMX-fix-DebugCtl-MSR-clearing.patch 53f7386d-x86-irq-process-softirqs-in-irq-keyhandlers.patch 53ff3716-x86-ats-Disable-Address-Translation-Services-by-default.patch 53ff3899-x86-NMI-allow-processing-unknown-NMIs-with-watchdog.patch - bnc#864801 - VUL-0: CVE-2013-4540: qemu: zaurus: buffer overrun on invalid state load CVE-2013-4540-qemu.patch OBS-URL: https://build.opensuse.org/package/show/Virtualization/xen?expand=0&rev=328
120 lines
3.6 KiB
Diff
120 lines
3.6 KiB
Diff
# Commit e13b3203990706db1313ec2aadd9a30b249ee793
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# Date 2014-08-22 14:32:45 +0200
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# Author Andrew Cooper <andrew.cooper3@citrix.com>
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# Committer Jan Beulich <jbeulich@suse.com>
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x86/irq: process softirqs in irq keyhandlers
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Large machines with lots of interrupts can trip over the Xen watchdog.
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Suggested-by: Santosh Jodh <Santosh.Jodh@citrix.com>
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Signed-off-by: Andrew Cooper <andrew.cooper3@citrix.com>
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Tested-by: Santosh Jodh <Santosh.Jodh@citrix.com>
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# Commit bd083922f9e78ed19ef98e7de372e5f568402ed3
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# Date 2014-08-26 17:56:52 +0200
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# Author Jan Beulich <jbeulich@suse.com>
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# Committer Jan Beulich <jbeulich@suse.com>
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x86/IO-APIC: don't process softirqs during early boot
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Commit e13b320399 ("x86/irq: process softirqs in irq keyhandlers")
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made this unconditional, but the boot time use of __print_IO_APIC()
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(when "apic_verbosity=debug" was given) can't tolerate that.
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Reported-by: Sander Eikelenboom <linux@eikelenboom.it>
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Signed-off-by: Jan Beulich <jbeulich@suse.com>
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Reviewed-by: Andrew Cooper <andrew.cooper3@citrix.com>
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Tested-by: Sander Eikelenboom <linux@eikelenboom.it>
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--- a/xen/arch/x86/io_apic.c
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+++ b/xen/arch/x86/io_apic.c
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@@ -28,6 +28,7 @@
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#include <xen/sched.h>
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#include <xen/acpi.h>
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#include <xen/keyhandler.h>
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+#include <xen/softirq.h>
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#include <asm/mc146818rtc.h>
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#include <asm/smp.h>
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#include <asm/desc.h>
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@@ -1091,7 +1092,7 @@ static inline void UNEXPECTED_IO_APIC(vo
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{
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}
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-static void /*__init*/ __print_IO_APIC(void)
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+static void /*__init*/ __print_IO_APIC(bool_t boot)
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{
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int apic, i;
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union IO_APIC_reg_00 reg_00;
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@@ -1112,6 +1113,9 @@ static void /*__init*/ __print_IO_APIC(v
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printk(KERN_INFO "testing the IO APIC.......................\n");
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for (apic = 0; apic < nr_ioapics; apic++) {
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+ if ( !boot )
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+ process_pending_softirqs();
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+
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if (!nr_ioapic_entries[apic])
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continue;
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@@ -1215,6 +1219,10 @@ static void /*__init*/ __print_IO_APIC(v
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printk(KERN_DEBUG "IRQ to pin mappings:\n");
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for (i = 0; i < nr_irqs_gsi; i++) {
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struct irq_pin_list *entry = irq_2_pin + i;
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+
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+ if ( !boot && !(i & 0x1f) )
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+ process_pending_softirqs();
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+
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if (entry->pin < 0)
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continue;
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printk(KERN_DEBUG "IRQ%d ", irq_to_desc(i)->arch.vector);
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@@ -1235,12 +1243,12 @@ static void /*__init*/ __print_IO_APIC(v
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static void __init print_IO_APIC(void)
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{
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if (apic_verbosity != APIC_QUIET)
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- __print_IO_APIC();
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+ __print_IO_APIC(1);
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}
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static void _print_IO_APIC_keyhandler(unsigned char key)
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{
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- __print_IO_APIC();
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+ __print_IO_APIC(0);
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}
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static struct keyhandler print_IO_APIC_keyhandler = {
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.diagnostic = 1,
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@@ -2454,6 +2462,9 @@ void dump_ioapic_irq_info(void)
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for ( irq = 0; irq < nr_irqs_gsi; irq++ )
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{
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+ if ( !(irq & 0x1f) )
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+ process_pending_softirqs();
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+
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entry = &irq_2_pin[irq];
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if ( entry->pin == -1 )
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continue;
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--- a/xen/arch/x86/irq.c
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+++ b/xen/arch/x86/irq.c
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@@ -19,6 +19,7 @@
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#include <xen/iommu.h>
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#include <xen/symbols.h>
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#include <xen/trace.h>
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+#include <xen/softirq.h>
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#include <xsm/xsm.h>
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#include <asm/msi.h>
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#include <asm/current.h>
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@@ -2231,6 +2232,8 @@ static void dump_irqs(unsigned char key)
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for ( irq = 0; irq < nr_irqs; irq++ )
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{
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+ if ( !(irq & 0x1f) )
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+ process_pending_softirqs();
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desc = irq_to_desc(irq);
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@@ -2284,6 +2287,7 @@ static void dump_irqs(unsigned char key)
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xfree(ssid);
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}
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+ process_pending_softirqs();
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printk("Direct vector information:\n");
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for ( i = FIRST_DYNAMIC_VECTOR; i < NR_VECTORS; ++i )
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if ( direct_apic_vector[i] )
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