From: Nitesh Narayan Lal <nitesh@redhat.com>
To: kvm@vger.kernel.org, pbonzini@redhat.com, thuth@redhat.com,
mtosatti@redhat.com
Subject: [kvm-unit-tests Patch v1 2/2] x86: ioapic: Test physical and logical destination mode
Date: Wed, 6 Nov 2019 07:47:09 -0500 [thread overview]
Message-ID: <1573044429-7390-3-git-send-email-nitesh@redhat.com> (raw)
In-Reply-To: <1573044429-7390-1-git-send-email-nitesh@redhat.com>
This patch tests the physical destination mode by sending an
interrupt to one of the vcpus and logical destination mode by
sending an interrupt to more than one vcpus.
Signed-off-by: Nitesh Narayan Lal <nitesh@redhat.com>
---
x86/ioapic.c | 65 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
1 file changed, 65 insertions(+)
diff --git a/x86/ioapic.c b/x86/ioapic.c
index c32dabd..31aec03 100644
--- a/x86/ioapic.c
+++ b/x86/ioapic.c
@@ -405,12 +405,73 @@ static void test_ioapic_self_reconfigure(void)
report("Reconfigure self", g_isr_84 == 1 && e.remote_irr == 0);
}
+static volatile int g_isr_85;
+
+static void ioapic_isr_85(isr_regs_t *regs)
+{
+ ++g_isr_85;
+ set_irq_line(0x0e, 0);
+ eoi();
+}
+
+static void test_ioapic_physical_destination_mode(void)
+{
+ ioapic_redir_entry_t e = {
+ .vector = 0x85,
+ .delivery_mode = 0,
+ .dest_mode = 0,
+ .dest_id = 0x1,
+ .trig_mode = TRIGGER_LEVEL,
+ };
+ handle_irq(0x85, ioapic_isr_85);
+ ioapic_write_redir(0xe, e);
+ set_irq_line(0x0e, 1);
+ do {
+ pause();
+ } while(g_isr_85 != 1);
+ report("ioapic physical destination mode", g_isr_85 == 1);
+}
+
+static volatile int g_isr_86;
+
+static void ioapic_isr_86(isr_regs_t *regs)
+{
+ ++g_isr_86;
+ set_irq_line(0x0e, 0);
+ eoi();
+}
+
+static void test_ioapic_logical_destination_mode(void)
+{
+ /* Number of vcpus which are configured/set in dest_id */
+ int nr_vcpus = 3;
+ ioapic_redir_entry_t e = {
+ .vector = 0x86,
+ .delivery_mode = 0,
+ .dest_mode = 1,
+ .dest_id = 0xd,
+ .trig_mode = TRIGGER_LEVEL,
+ };
+ handle_irq(0x86, ioapic_isr_86);
+ ioapic_write_redir(0xe, e);
+ set_irq_line(0x0e, 1);
+ do {
+ pause();
+ } while(g_isr_86 < nr_vcpus);
+ report("ioapic logical destination mode", g_isr_86 == nr_vcpus);
+}
+
+static void update_cr3(void *cr3)
+{
+ write_cr3((ulong)cr3);
+}
int main(void)
{
setup_vm();
smp_init();
+ on_cpus(update_cr3, (void *)read_cr3());
mask_pic_interrupts();
if (enable_x2apic())
@@ -448,7 +509,11 @@ int main(void)
test_ioapic_edge_tmr_smp(true);
test_ioapic_self_reconfigure();
+ test_ioapic_physical_destination_mode();
}
+ if (cpu_count() > 3)
+ test_ioapic_logical_destination_mode();
+
return report_summary();
}
--
1.8.3.1
next prev parent reply other threads:[~2019-11-06 12:47 UTC|newest]
Thread overview: 11+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-11-06 12:47 [kvm-unit-tests Patch v1 0/2] x86: Test IOAPIC physical and logical destination mode Nitesh Narayan Lal
2019-11-06 12:47 ` [kvm-unit-tests Patch v1 1/2] x86: ioapic: Add the smp configuration to ioapic unittest Nitesh Narayan Lal
2019-11-06 12:47 ` Nitesh Narayan Lal [this message]
2019-11-28 6:38 ` [kvm-unit-tests Patch v1 2/2] x86: ioapic: Test physical and logical destination mode Thomas Huth
2019-12-05 3:26 ` Nitesh Narayan Lal
2019-12-05 13:59 ` Nitesh Narayan Lal
2019-11-28 10:25 ` Christophe de Dinechin
2019-12-05 3:28 ` Nitesh Narayan Lal
2019-11-22 19:21 ` [kvm-unit-tests Patch v1 0/2] x86: Test IOAPIC " Nitesh Narayan Lal
2019-11-22 19:41 ` Marcelo Tosatti
2019-11-23 10:33 ` Paolo Bonzini
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