Merge tag 'hyperv-next-signed-20260218' of git://git.kernel.org/pub/scm/linux/kernel/git/hyperv/linux

Pull Hyper-V updates from Wei Liu:

 - Debugfs support for MSHV statistics (Nuno Das Neves)

 - Support for the integrated scheduler (Stanislav Kinsburskii)

 - Various fixes for MSHV memory management and hypervisor status
   handling (Stanislav Kinsburskii)

 - Expose more capabilities and flags for MSHV partition management
   (Anatol Belski, Muminul Islam, Magnus Kulke)

 - Miscellaneous fixes to improve code quality and stability (Carlos
   López, Ethan Nelson-Moore, Li RongQing, Michael Kelley, Mukesh
   Rathor, Purna Pavan Chandra Aekkaladevi, Stanislav Kinsburskii, Uros
   Bizjak)

 - PREEMPT_RT fixes for vmbus interrupts (Jan Kiszka)

* tag 'hyperv-next-signed-20260218' of git://git.kernel.org/pub/scm/linux/kernel/git/hyperv/linux: (34 commits)
  mshv: Handle insufficient root memory hypervisor statuses
  mshv: Handle insufficient contiguous memory hypervisor status
  mshv: Introduce hv_deposit_memory helper functions
  mshv: Introduce hv_result_needs_memory() helper function
  mshv: Add SMT_ENABLED_GUEST partition creation flag
  mshv: Add nested virtualization creation flag
  Drivers: hv: vmbus: Simplify allocation of vmbus_evt
  mshv: expose the scrub partition hypercall
  mshv: Add support for integrated scheduler
  mshv: Use try_cmpxchg() instead of cmpxchg()
  x86/hyperv: Fix error pointer dereference
  x86/hyperv: Reserve 3 interrupt vectors used exclusively by MSHV
  Drivers: hv: vmbus: Use kthread for vmbus interrupts on PREEMPT_RT
  x86/hyperv: Remove ASM_CALL_CONSTRAINT with VMMCALL insn
  x86/hyperv: Use savesegment() instead of inline asm() to save segment registers
  mshv: fix SRCU protection in irqfd resampler ack handler
  mshv: make field names descriptive in a header struct
  x86/hyperv: Update comment in hyperv_cleanup()
  mshv: clear eventfd counter on irqfd shutdown
  x86/hyperv: Use memremap()/memunmap() instead of ioremap_cache()/iounmap()
  ...

1 files changed, 13 insertions, 0 deletions

diff --git a/include/asm-generic/mshyperv.h b/include/asm-generic/mshyperv.h
index ecedab554c80..d37b68238c97 100644
--- a/include/asm-generic/mshyperv.h
+++ b/include/asm-generic/mshyperv.h
@@ -342,6 +342,9 @@ static inline bool hv_parent_partition(void)
 {
 	return hv_root_partition() || hv_l1vh_partition();
 }
+
+bool hv_result_needs_memory(u64 status);
+int hv_deposit_memory_node(int node, u64 partition_id, u64 status);
 int hv_call_deposit_pages(int node, u64 partition_id, u32 num_pages);
 int hv_call_add_logical_proc(int node, u32 lp_index, u32 acpi_id);
 int hv_call_create_vp(int node, u64 partition_id, u32 vp_index, u32 flags);
@@ -350,6 +353,11 @@ int hv_call_create_vp(int node, u64 partition_id, u32 vp_index, u32 flags);
 static inline bool hv_root_partition(void) { return false; }
 static inline bool hv_l1vh_partition(void) { return false; }
 static inline bool hv_parent_partition(void) { return false; }
+static inline bool hv_result_needs_memory(u64 status) { return false; }
+static inline int hv_deposit_memory_node(int node, u64 partition_id, u64 status)
+{
+	return -EOPNOTSUPP;
+}
 static inline int hv_call_deposit_pages(int node, u64 partition_id, u32 num_pages)
 {
 	return -EOPNOTSUPP;
@@ -364,6 +372,11 @@ static inline int hv_call_create_vp(int node, u64 partition_id, u32 vp_index, u3
 }
 #endif /* CONFIG_MSHV_ROOT */
 
+static inline int hv_deposit_memory(u64 partition_id, u64 status)
+{
+	return hv_deposit_memory_node(NUMA_NO_NODE, partition_id, status);
+}
+
 #if IS_ENABLED(CONFIG_HYPERV_VTL_MODE)
 u8 __init get_vtl(void);
 #else