[RFC,01/19] trace/kvm: Split address space and slot id in trace_kvm_set_user_memory()

Commit Message

Xiaoyao Li July 31, 2023, 4:21 p.m. UTC

The upper 16 bits of kvm_userspace_memory_region::slot are
address space id. Parse it separately in trace_kvm_set_user_memory().

Signed-off-by: Xiaoyao Li <[e-mail]>
---
 accel/kvm/kvm-all.c    | 5 +++--
 accel/kvm/trace-events | 2 +-
 2 files changed, 4 insertions(+), 3 deletions(-)

Patch

diff --git a/accel/kvm/kvm-all.c b/accel/kvm/kvm-all.c
index 373d876c0580..d8eee405de24 100644
--- a/accel/kvm/kvm-all.c
+++ b/accel/kvm/kvm-all.c
@@ -309,8 +309,9 @@  static int kvm_set_user_memory_region(KVMMemoryListener *kml, KVMSlot *slot, boo
     ret = kvm_vm_ioctl(s, KVM_SET_USER_MEMORY_REGION, &mem);
     slot->old_flags = mem.flags;
 err:
-    trace_kvm_set_user_memory(mem.slot, mem.flags, mem.guest_phys_addr,
-                              mem.memory_size, mem.userspace_addr, ret);
+    trace_kvm_set_user_memory(mem.slot >> 16, (uint16_t)mem.slot, mem.flags,
+                              mem.guest_phys_addr, mem.memory_size,
+                              mem.userspace_addr, ret);
     if (ret < 0) {
         error_report("%s: KVM_SET_USER_MEMORY_REGION failed, slot=%d,"
                      " start=0x%" PRIx64 ", size=0x%" PRIx64 ": %s",
diff --git a/accel/kvm/trace-events b/accel/kvm/trace-events
index 399aaeb0ec75..14ebfa1b991c 100644
--- a/accel/kvm/trace-events
+++ b/accel/kvm/trace-events
@@ -15,7 +15,7 @@  kvm_irqchip_update_msi_route(int virq) "Updating MSI route virq=%d"
 kvm_irqchip_release_virq(int virq) "virq %d"
 kvm_set_ioeventfd_mmio(int fd, uint64_t addr, uint32_t val, bool assign, uint32_t size, bool datamatch) "fd: %d @0x%" PRIx64 " val=0x%x assign: %d size: %d match: %d"
 kvm_set_ioeventfd_pio(int fd, uint16_t addr, uint32_t val, bool assign, uint32_t size, bool datamatch) "fd: %d @0x%x val=0x%x assign: %d size: %d match: %d"
-kvm_set_user_memory(uint32_t slot, uint32_t flags, uint64_t guest_phys_addr, uint64_t memory_size, uint64_t userspace_addr, int ret) "Slot#%d flags=0x%x gpa=0x%"PRIx64 " size=0x%"PRIx64 " ua=0x%"PRIx64 " ret=%d"
+kvm_set_user_memory(uint16_t as, uint16_t slot, uint32_t flags, uint64_t guest_phys_addr, uint64_t memory_size, uint64_t userspace_addr, int ret) "AddrSpace#%d Slot#%d flags=0x%x gpa=0x%"PRIx64 " size=0x%"PRIx64 " ua=0x%"PRIx64 " ret=%d"
 kvm_clear_dirty_log(uint32_t slot, uint64_t start, uint32_t size) "slot#%"PRId32" start 0x%"PRIx64" size 0x%"PRIx32
 kvm_resample_fd_notify(int gsi) "gsi %d"
 kvm_dirty_ring_full(int id) "vcpu %d"