Set all inclusive vector allocation domain only if interrupt routing is
set to ignore. When in comply mode, vector allocation behavior isn't
changed.
Signed-off-by: Oren Twaig <o...@scalemp.com>
Acked-by: Shai Fultheim <s...@scalemp.com>
---
diff --git a/arch/x86/kernel/vsmp_64.c b/arch/x86/kernel/vsmp_64.c
index f6584a9..60a195d 100644
--- a/arch/x86/kernel/vsmp_64.c
+++ b/arch/x86/kernel/vsmp_64.c
@@ -27,6 +27,9 @@
#define TOPOLOGY_REGISTER_OFFSET 0x10
#if defined CONFIG_PCI && defined CONFIG_PARAVIRT
+
+static int irc = 1;
+
/*
* Interrupt control on vSMPowered systems:
* ~AC is a shadow of IF. If IF is 'on' AC should be 'off'
@@ -101,6 +104,10 @@ static void __init set_vsmp_pv_ops(void)
#ifdef CONFIG_SMP
if (cap & ctl & BIT(8)) {
ctl &= ~BIT(8);
+
+ /* Interrupt routing set to ignore */
+ irc = 0;
+
#ifdef CONFIG_PROC_FS
/* Don't let users change irq affinity via procfs */
no_irq_affinity = 1;
@@ -218,7 +225,9 @@ static void vsmp_apic_post_init(void)
{
/* need to update phys_pkg_id */
apic->phys_pkg_id = apicid_phys_pkg_id;
- apic->vector_allocation_domain = fill_vector_allocation_domain;
+
+ if (!irc)
+ apic->vector_allocation_domain = fill_vector_allocation_domain;
}
void __init vsmp_init(void)
---
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