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0c6294d98a
This test tries to setup routes which have address + offset combinations which cross a page. Reviewed-by: Matthew Rosato <mjrosato@linux.ibm.com> Tested-by: Matthew Rosato <mjrosato@linux.ibm.com> Signed-off-by: Janosch Frank <frankja@linux.ibm.com> Signed-off-by: Christian Borntraeger <borntraeger@linux.ibm.com>
76 lines
1.8 KiB
C
76 lines
1.8 KiB
C
// SPDX-License-Identifier: GPL-2.0-only
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/*
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* IRQ routing offset tests.
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*
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* Copyright IBM Corp. 2026
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*
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* Authors:
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* Janosch Frank <frankja@linux.ibm.com>
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*/
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include <sys/ioctl.h>
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#include "test_util.h"
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#include "kvm_util.h"
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#include "kselftest.h"
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#include "ucall_common.h"
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extern char guest_code[];
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asm("guest_code:\n"
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"diag %r0,%r0,0\n"
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"j .\n");
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static void test(void)
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{
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struct kvm_irq_routing *routing;
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struct kvm_vcpu *vcpu;
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struct kvm_vm *vm;
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vm_paddr_t mem;
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int ret;
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struct kvm_irq_routing_entry ue = {
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.type = KVM_IRQ_ROUTING_S390_ADAPTER,
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.gsi = 1,
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};
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vm = vm_create_with_one_vcpu(&vcpu, guest_code);
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mem = vm_phy_pages_alloc(vm, 2, 4096 * 42, 0);
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routing = kvm_gsi_routing_create();
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routing->nr = 1;
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routing->entries[0] = ue;
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routing->entries[0].u.adapter.summary_addr = (uintptr_t)mem;
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routing->entries[0].u.adapter.ind_addr = (uintptr_t)mem;
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routing->entries[0].u.adapter.summary_offset = 4096 * 8;
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ret = __vm_ioctl(vm, KVM_SET_GSI_ROUTING, routing);
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ksft_test_result(ret == -1 && errno == EINVAL, "summary offset outside of page\n");
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routing->entries[0].u.adapter.summary_offset -= 4;
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ret = __vm_ioctl(vm, KVM_SET_GSI_ROUTING, routing);
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ksft_test_result(ret == 0, "summary offset inside of page\n");
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routing->entries[0].u.adapter.ind_offset = 4096 * 8;
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ret = __vm_ioctl(vm, KVM_SET_GSI_ROUTING, routing);
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ksft_test_result(ret == -1 && errno == EINVAL, "ind offset outside of page\n");
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routing->entries[0].u.adapter.ind_offset -= 4;
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ret = __vm_ioctl(vm, KVM_SET_GSI_ROUTING, routing);
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ksft_test_result(ret == 0, "ind offset inside of page\n");
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kvm_vm_free(vm);
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}
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int main(int argc, char *argv[])
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{
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TEST_REQUIRE(kvm_has_cap(KVM_CAP_IRQ_ROUTING));
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ksft_print_header();
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ksft_set_plan(4);
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test();
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ksft_finished(); /* Print results and exit() accordingly */
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}
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