lkml.org 
[lkml]   [2022]   [Jun]   [2]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
Patch in this message
/
Date
Subject[PATCH v2 085/144] KVM: selftests: Convert cpuid_test away from VCPU_ID
From
Convert cpuid_test to use vm_create_with_one_vcpu() and pass around a
'struct kvm_vcpu' object instead of using a global VCPU_ID.

Opportunistically use vcpu_run() instead of _vcpu_run(), the test expects
KVM_RUN to succeed.

Signed-off-by: Sean Christopherson <seanjc@google.com>
---
.../testing/selftests/kvm/x86_64/cpuid_test.c | 29 +++++++++----------
1 file changed, 14 insertions(+), 15 deletions(-)

diff --git a/tools/testing/selftests/kvm/x86_64/cpuid_test.c b/tools/testing/selftests/kvm/x86_64/cpuid_test.c
index 16d2465c5634..76cdd0d10757 100644
--- a/tools/testing/selftests/kvm/x86_64/cpuid_test.c
+++ b/tools/testing/selftests/kvm/x86_64/cpuid_test.c
@@ -12,8 +12,6 @@
#include "kvm_util.h"
#include "processor.h"

-#define VCPU_ID 0
-
/* CPUIDs known to differ */
struct {
u32 function;
@@ -118,13 +116,13 @@ static void compare_cpuids(struct kvm_cpuid2 *cpuid1, struct kvm_cpuid2 *cpuid2)
check_cpuid(cpuid1, &cpuid2->entries[i]);
}

-static void run_vcpu(struct kvm_vm *vm, uint32_t vcpuid, int stage)
+static void run_vcpu(struct kvm_vcpu *vcpu, int stage)
{
struct ucall uc;

- _vcpu_run(vm, vcpuid);
+ vcpu_run(vcpu->vm, vcpu->id);

- switch (get_ucall(vm, vcpuid, &uc)) {
+ switch (get_ucall(vcpu->vm, vcpu->id, &uc)) {
case UCALL_SYNC:
TEST_ASSERT(!strcmp((const char *)uc.args[0], "hello") &&
uc.args[1] == stage + 1,
@@ -138,7 +136,7 @@ static void run_vcpu(struct kvm_vm *vm, uint32_t vcpuid, int stage)
__FILE__, uc.args[1], uc.args[2], uc.args[3]);
default:
TEST_ASSERT(false, "Unexpected exit: %s",
- exit_reason_str(vcpu_state(vm, vcpuid)->exit_reason));
+ exit_reason_str(vcpu->run->exit_reason));
}
}

@@ -154,21 +152,21 @@ struct kvm_cpuid2 *vcpu_alloc_cpuid(struct kvm_vm *vm, vm_vaddr_t *p_gva, struct
return guest_cpuids;
}

-static void set_cpuid_after_run(struct kvm_vm *vm, struct kvm_cpuid2 *cpuid)
+static void set_cpuid_after_run(struct kvm_vcpu *vcpu, struct kvm_cpuid2 *cpuid)
{
struct kvm_cpuid_entry2 *ent;
int rc;
u32 eax, ebx, x;

/* Setting unmodified CPUID is allowed */
- rc = __vcpu_set_cpuid(vm, VCPU_ID, cpuid);
+ rc = __vcpu_set_cpuid(vcpu->vm, vcpu->id, cpuid);
TEST_ASSERT(!rc, "Setting unmodified CPUID after KVM_RUN failed: %d", rc);

/* Changing CPU features is forbidden */
ent = get_cpuid(cpuid, 0x7, 0);
ebx = ent->ebx;
ent->ebx--;
- rc = __vcpu_set_cpuid(vm, VCPU_ID, cpuid);
+ rc = __vcpu_set_cpuid(vcpu->vm, vcpu->id, cpuid);
TEST_ASSERT(rc, "Changing CPU features should fail");
ent->ebx = ebx;

@@ -177,7 +175,7 @@ static void set_cpuid_after_run(struct kvm_vm *vm, struct kvm_cpuid2 *cpuid)
eax = ent->eax;
x = eax & 0xff;
ent->eax = (eax & ~0xffu) | (x - 1);
- rc = __vcpu_set_cpuid(vm, VCPU_ID, cpuid);
+ rc = __vcpu_set_cpuid(vcpu->vm, vcpu->id, cpuid);
TEST_ASSERT(rc, "Changing MAXPHYADDR should fail");
ent->eax = eax;
}
@@ -185,25 +183,26 @@ static void set_cpuid_after_run(struct kvm_vm *vm, struct kvm_cpuid2 *cpuid)
int main(void)
{
struct kvm_cpuid2 *supp_cpuid, *cpuid2;
+ struct kvm_vcpu *vcpu;
vm_vaddr_t cpuid_gva;
struct kvm_vm *vm;
int stage;

- vm = vm_create_default(VCPU_ID, 0, guest_main);
+ vm = vm_create_with_one_vcpu(&vcpu, guest_main);

supp_cpuid = kvm_get_supported_cpuid();
- cpuid2 = vcpu_get_cpuid(vm, VCPU_ID);
+ cpuid2 = vcpu_get_cpuid(vm, vcpu->id);

compare_cpuids(supp_cpuid, cpuid2);

vcpu_alloc_cpuid(vm, &cpuid_gva, cpuid2);

- vcpu_args_set(vm, VCPU_ID, 1, cpuid_gva);
+ vcpu_args_set(vm, vcpu->id, 1, cpuid_gva);

for (stage = 0; stage < 3; stage++)
- run_vcpu(vm, VCPU_ID, stage);
+ run_vcpu(vcpu, stage);

- set_cpuid_after_run(vm, cpuid2);
+ set_cpuid_after_run(vcpu, cpuid2);

kvm_vm_free(vm);
}
--
2.36.1.255.ge46751e96f-goog
\
 
 \ /
  Last update: 2022-06-03 02:58    [W:0.899 / U:0.092 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site