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-rw-r--r--tools/testing/selftests/kvm/x86_64/sync_regs_test.c69
1 files changed, 33 insertions, 36 deletions
diff --git a/tools/testing/selftests/kvm/x86_64/sync_regs_test.c b/tools/testing/selftests/kvm/x86_64/sync_regs_test.c
index 5c8224256294..9b6db0b0b13e 100644
--- a/tools/testing/selftests/kvm/x86_64/sync_regs_test.c
+++ b/tools/testing/selftests/kvm/x86_64/sync_regs_test.c
@@ -20,10 +20,12 @@
#include "kvm_util.h"
#include "processor.h"
-#define VCPU_ID 5
-
#define UCALL_PIO_PORT ((uint16_t)0x1000)
+struct ucall uc_none = {
+ .cmd = UCALL_NONE,
+};
+
/*
* ucall is embedded here to protect against compiler reshuffling registers
* before calling a function. In this test we only need to get KVM_EXIT_IO
@@ -34,7 +36,8 @@ void guest_code(void)
asm volatile("1: in %[port], %%al\n"
"add $0x1, %%rbx\n"
"jmp 1b"
- : : [port] "d" (UCALL_PIO_PORT) : "rax", "rbx");
+ : : [port] "d" (UCALL_PIO_PORT), "D" (&uc_none)
+ : "rax", "rbx");
}
static void compare_regs(struct kvm_regs *left, struct kvm_regs *right)
@@ -79,6 +82,7 @@ static void compare_vcpu_events(struct kvm_vcpu_events *left,
int main(int argc, char *argv[])
{
+ struct kvm_vcpu *vcpu;
struct kvm_vm *vm;
struct kvm_run *run;
struct kvm_regs regs;
@@ -90,66 +94,59 @@ int main(int argc, char *argv[])
setbuf(stdout, NULL);
cap = kvm_check_cap(KVM_CAP_SYNC_REGS);
- if ((cap & TEST_SYNC_FIELDS) != TEST_SYNC_FIELDS) {
- fprintf(stderr, "KVM_CAP_SYNC_REGS not supported, skipping test\n");
- exit(KSFT_SKIP);
- }
- if ((cap & INVALID_SYNC_FIELD) != 0) {
- fprintf(stderr, "The \"invalid\" field is not invalid, skipping test\n");
- exit(KSFT_SKIP);
- }
+ TEST_REQUIRE((cap & TEST_SYNC_FIELDS) == TEST_SYNC_FIELDS);
+ TEST_REQUIRE(!(cap & INVALID_SYNC_FIELD));
- /* Create VM */
- vm = vm_create_default(VCPU_ID, 0, guest_code);
+ vm = vm_create_with_one_vcpu(&vcpu, guest_code);
- run = vcpu_state(vm, VCPU_ID);
+ run = vcpu->run;
/* Request reading invalid register set from VCPU. */
run->kvm_valid_regs = INVALID_SYNC_FIELD;
- rv = _vcpu_run(vm, VCPU_ID);
+ rv = _vcpu_run(vcpu);
TEST_ASSERT(rv < 0 && errno == EINVAL,
"Invalid kvm_valid_regs did not cause expected KVM_RUN error: %d\n",
rv);
- vcpu_state(vm, VCPU_ID)->kvm_valid_regs = 0;
+ run->kvm_valid_regs = 0;
run->kvm_valid_regs = INVALID_SYNC_FIELD | TEST_SYNC_FIELDS;
- rv = _vcpu_run(vm, VCPU_ID);
+ rv = _vcpu_run(vcpu);
TEST_ASSERT(rv < 0 && errno == EINVAL,
"Invalid kvm_valid_regs did not cause expected KVM_RUN error: %d\n",
rv);
- vcpu_state(vm, VCPU_ID)->kvm_valid_regs = 0;
+ run->kvm_valid_regs = 0;
/* Request setting invalid register set into VCPU. */
run->kvm_dirty_regs = INVALID_SYNC_FIELD;
- rv = _vcpu_run(vm, VCPU_ID);
+ rv = _vcpu_run(vcpu);
TEST_ASSERT(rv < 0 && errno == EINVAL,
"Invalid kvm_dirty_regs did not cause expected KVM_RUN error: %d\n",
rv);
- vcpu_state(vm, VCPU_ID)->kvm_dirty_regs = 0;
+ run->kvm_dirty_regs = 0;
run->kvm_dirty_regs = INVALID_SYNC_FIELD | TEST_SYNC_FIELDS;
- rv = _vcpu_run(vm, VCPU_ID);
+ rv = _vcpu_run(vcpu);
TEST_ASSERT(rv < 0 && errno == EINVAL,
"Invalid kvm_dirty_regs did not cause expected KVM_RUN error: %d\n",
rv);
- vcpu_state(vm, VCPU_ID)->kvm_dirty_regs = 0;
+ run->kvm_dirty_regs = 0;
/* Request and verify all valid register sets. */
/* TODO: BUILD TIME CHECK: TEST_ASSERT(KVM_SYNC_X86_NUM_FIELDS != 3); */
run->kvm_valid_regs = TEST_SYNC_FIELDS;
- rv = _vcpu_run(vm, VCPU_ID);
+ rv = _vcpu_run(vcpu);
TEST_ASSERT(run->exit_reason == KVM_EXIT_IO,
"Unexpected exit reason: %u (%s),\n",
run->exit_reason,
exit_reason_str(run->exit_reason));
- vcpu_regs_get(vm, VCPU_ID, &regs);
+ vcpu_regs_get(vcpu, &regs);
compare_regs(&regs, &run->s.regs.regs);
- vcpu_sregs_get(vm, VCPU_ID, &sregs);
+ vcpu_sregs_get(vcpu, &sregs);
compare_sregs(&sregs, &run->s.regs.sregs);
- vcpu_events_get(vm, VCPU_ID, &events);
+ vcpu_events_get(vcpu, &events);
compare_vcpu_events(&events, &run->s.regs.events);
/* Set and verify various register values. */
@@ -159,7 +156,7 @@ int main(int argc, char *argv[])
run->kvm_valid_regs = TEST_SYNC_FIELDS;
run->kvm_dirty_regs = KVM_SYNC_X86_REGS | KVM_SYNC_X86_SREGS;
- rv = _vcpu_run(vm, VCPU_ID);
+ rv = _vcpu_run(vcpu);
TEST_ASSERT(run->exit_reason == KVM_EXIT_IO,
"Unexpected exit reason: %u (%s),\n",
run->exit_reason,
@@ -171,13 +168,13 @@ int main(int argc, char *argv[])
"apic_base sync regs value incorrect 0x%llx.",
run->s.regs.sregs.apic_base);
- vcpu_regs_get(vm, VCPU_ID, &regs);
+ vcpu_regs_get(vcpu, &regs);
compare_regs(&regs, &run->s.regs.regs);
- vcpu_sregs_get(vm, VCPU_ID, &sregs);
+ vcpu_sregs_get(vcpu, &sregs);
compare_sregs(&sregs, &run->s.regs.sregs);
- vcpu_events_get(vm, VCPU_ID, &events);
+ vcpu_events_get(vcpu, &events);
compare_vcpu_events(&events, &run->s.regs.events);
/* Clear kvm_dirty_regs bits, verify new s.regs values are
@@ -186,7 +183,7 @@ int main(int argc, char *argv[])
run->kvm_valid_regs = TEST_SYNC_FIELDS;
run->kvm_dirty_regs = 0;
run->s.regs.regs.rbx = 0xDEADBEEF;
- rv = _vcpu_run(vm, VCPU_ID);
+ rv = _vcpu_run(vcpu);
TEST_ASSERT(run->exit_reason == KVM_EXIT_IO,
"Unexpected exit reason: %u (%s),\n",
run->exit_reason,
@@ -203,8 +200,8 @@ int main(int argc, char *argv[])
run->kvm_dirty_regs = 0;
run->s.regs.regs.rbx = 0xAAAA;
regs.rbx = 0xBAC0;
- vcpu_regs_set(vm, VCPU_ID, &regs);
- rv = _vcpu_run(vm, VCPU_ID);
+ vcpu_regs_set(vcpu, &regs);
+ rv = _vcpu_run(vcpu);
TEST_ASSERT(run->exit_reason == KVM_EXIT_IO,
"Unexpected exit reason: %u (%s),\n",
run->exit_reason,
@@ -212,7 +209,7 @@ int main(int argc, char *argv[])
TEST_ASSERT(run->s.regs.regs.rbx == 0xAAAA,
"rbx sync regs value incorrect 0x%llx.",
run->s.regs.regs.rbx);
- vcpu_regs_get(vm, VCPU_ID, &regs);
+ vcpu_regs_get(vcpu, &regs);
TEST_ASSERT(regs.rbx == 0xBAC0 + 1,
"rbx guest value incorrect 0x%llx.",
regs.rbx);
@@ -224,7 +221,7 @@ int main(int argc, char *argv[])
run->kvm_valid_regs = 0;
run->kvm_dirty_regs = TEST_SYNC_FIELDS;
run->s.regs.regs.rbx = 0xBBBB;
- rv = _vcpu_run(vm, VCPU_ID);
+ rv = _vcpu_run(vcpu);
TEST_ASSERT(run->exit_reason == KVM_EXIT_IO,
"Unexpected exit reason: %u (%s),\n",
run->exit_reason,
@@ -232,7 +229,7 @@ int main(int argc, char *argv[])
TEST_ASSERT(run->s.regs.regs.rbx == 0xBBBB,
"rbx sync regs value incorrect 0x%llx.",
run->s.regs.regs.rbx);
- vcpu_regs_get(vm, VCPU_ID, &regs);
+ vcpu_regs_get(vcpu, &regs);
TEST_ASSERT(regs.rbx == 0xBBBB + 1,
"rbx guest value incorrect 0x%llx.",
regs.rbx);
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