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| author | Ricardo Koller <ricarkol@google.com> | 2021-11-08 18:39:05 -0800 |
|---|---|---|
| committer | Marc Zyngier <maz@kernel.org> | 2021-12-28 19:25:00 +0000 |
| commit | bebd8f3f869361e0249efe423ba76a0d991ce3e6 (patch) | |
| tree | 486ff2cc9b869e0ecd14db23bebced6852f27d35 | |
| parent | 6a5a47188caca7be4bbe28cdb31d5df09868ed5c (diff) | |
| download | linux-bebd8f3f869361e0249efe423ba76a0d991ce3e6.tar.bz2 | |
KVM: selftests: aarch64: Add ISPENDR write tests in vgic_irq
Add injection tests that use writing into the ISPENDR register (to mark
IRQs as pending). This is typically used by migration code.
Signed-off-by: Ricardo Koller <ricarkol@google.com>
Acked-by: Andrew Jones <drjones@redhat.com>
Signed-off-by: Marc Zyngier <maz@kernel.org>
Link: https://lore.kernel.org/r/20211109023906.1091208-17-ricarkol@google.com
| -rw-r--r-- | tools/testing/selftests/kvm/aarch64/vgic_irq.c | 22 |
1 files changed, 22 insertions, 0 deletions
diff --git a/tools/testing/selftests/kvm/aarch64/vgic_irq.c b/tools/testing/selftests/kvm/aarch64/vgic_irq.c index 121113f24ed3..ab39f0bf18e7 100644 --- a/tools/testing/selftests/kvm/aarch64/vgic_irq.c +++ b/tools/testing/selftests/kvm/aarch64/vgic_irq.c @@ -65,6 +65,7 @@ typedef enum { KVM_SET_IRQ_LINE_HIGH, KVM_SET_LEVEL_INFO_HIGH, KVM_INJECT_IRQFD, + KVM_WRITE_ISPENDR, } kvm_inject_cmd; struct kvm_inject_args { @@ -105,6 +106,7 @@ static struct kvm_inject_desc inject_edge_fns[] = { /* sgi ppi spi */ { KVM_INJECT_EDGE_IRQ_LINE, false, false, true }, { KVM_INJECT_IRQFD, false, false, true }, + { KVM_WRITE_ISPENDR, true, false, true }, { 0, }, }; @@ -113,6 +115,7 @@ static struct kvm_inject_desc inject_level_fns[] = { { KVM_SET_IRQ_LINE_HIGH, false, true, true }, { KVM_SET_LEVEL_INFO_HIGH, false, true, true }, { KVM_INJECT_IRQFD, false, false, true }, + { KVM_WRITE_ISPENDR, false, true, true }, { 0, }, }; @@ -495,6 +498,20 @@ static void kvm_set_gsi_routing_irqchip_check(struct kvm_vm *vm, } } +static void kvm_irq_write_ispendr_check(int gic_fd, uint32_t intid, + uint32_t vcpu, bool expect_failure) +{ + /* + * Ignore this when expecting failure as invalid intids will lead to + * either trying to inject SGIs when we configured the test to be + * level_sensitive (or the reverse), or inject large intids which + * will lead to writing above the ISPENDR register space (and we + * don't want to do that either). + */ + if (!expect_failure) + kvm_irq_write_ispendr(gic_fd, intid, vcpu); +} + static void kvm_routing_and_irqfd_check(struct kvm_vm *vm, uint32_t intid, uint32_t num, uint32_t kvm_max_routes, bool expect_failure) @@ -597,6 +614,11 @@ static void run_guest_cmd(struct kvm_vm *vm, int gic_fd, test_args->kvm_max_routes, expect_failure); break; + case KVM_WRITE_ISPENDR: + for (i = intid; i < intid + num; i++) + kvm_irq_write_ispendr_check(gic_fd, i, + VCPU_ID, expect_failure); + break; default: break; } |