Merge tag 'hyperv-fixes-signed-20240411' of git://git.kernel.org/pub/scm/linux/kernel/git/hyperv/linux

Pull hyperv fixes from Wei Liu:

 - Some cosmetic changes (Erni Sri Satya Vennela, Li Zhijian)

 - Introduce hv_numa_node_to_pxm_info() (Nuno Das Neves)

 - Fix KVP daemon to handle IPv4 and IPv6 combination for keyfile format
   (Shradha Gupta)

 - Avoid freeing decrypted memory in a confidential VM (Rick Edgecombe
   and Michael Kelley)

* tag 'hyperv-fixes-signed-20240411' of git://git.kernel.org/pub/scm/linux/kernel/git/hyperv/linux:
  Drivers: hv: vmbus: Don't free ring buffers that couldn't be re-encrypted
  uio_hv_generic: Don't free decrypted memory
  hv_netvsc: Don't free decrypted memory
  Drivers: hv: vmbus: Track decrypted status in vmbus_gpadl
  Drivers: hv: vmbus: Leak pages if set_memory_encrypted() fails
  hv/hv_kvp_daemon: Handle IPv4 and Ipv6 combination for keyfile format
  hv: vmbus: Convert sprintf() family to sysfs_emit() family
  mshyperv: Introduce hv_numa_node_to_pxm_info()
  x86/hyperv: Cosmetic changes for hv_apic.c

3 files changed, 22 insertions, 12 deletions

diff --git a/include/asm-generic/hyperv-tlfs.h b/include/asm-generic/hyperv-tlfs.h
index 87e3d49a4e29b..814207e7c37fc 100644
--- a/include/asm-generic/hyperv-tlfs.h
+++ b/include/asm-generic/hyperv-tlfs.h
@@ -512,13 +512,9 @@ struct hv_proximity_domain_flags {
 	u32 proximity_info_valid : 1;
 } __packed;
 
-/* Not a union in windows but useful for zeroing */
-union hv_proximity_domain_info {
-	struct {
-		u32 domain_id;
-		struct hv_proximity_domain_flags flags;
-	};
-	u64 as_uint64;
+struct hv_proximity_domain_info {
+	u32 domain_id;
+	struct hv_proximity_domain_flags flags;
 } __packed;
 
 struct hv_lp_startup_status {
@@ -532,14 +528,13 @@ struct hv_lp_startup_status {
 } __packed;
 
 /* HvAddLogicalProcessor hypercall */
-struct hv_add_logical_processor_in {
+struct hv_input_add_logical_processor {
 	u32 lp_index;
 	u32 apic_id;
-	union hv_proximity_domain_info proximity_domain_info;
-	u64 flags;
+	struct hv_proximity_domain_info proximity_domain_info;
 } __packed;
 
-struct hv_add_logical_processor_out {
+struct hv_output_add_logical_processor {
 	struct hv_lp_startup_status startup_status;
 } __packed;
 
@@ -560,7 +555,7 @@ struct hv_create_vp {
 	u8 padding[3];
 	u8 subnode_type;
 	u64 subnode_id;
-	union hv_proximity_domain_info proximity_domain_info;
+	struct hv_proximity_domain_info proximity_domain_info;
 	u64 flags;
 } __packed;
 
diff --git a/include/asm-generic/mshyperv.h b/include/asm-generic/mshyperv.h
index 99935779682dc..8fe7aaab25990 100644
--- a/include/asm-generic/mshyperv.h
+++ b/include/asm-generic/mshyperv.h
@@ -21,6 +21,7 @@
 #include <linux/types.h>
 #include <linux/atomic.h>
 #include <linux/bitops.h>
+#include <acpi/acpi_numa.h>
 #include <linux/cpumask.h>
 #include <linux/nmi.h>
 #include <asm/ptrace.h>
@@ -67,6 +68,19 @@ extern u64 hv_do_fast_hypercall8(u16 control, u64 input8);
 bool hv_isolation_type_snp(void);
 bool hv_isolation_type_tdx(void);
 
+static inline struct hv_proximity_domain_info hv_numa_node_to_pxm_info(int node)
+{
+	struct hv_proximity_domain_info pxm_info = {};
+
+	if (node != NUMA_NO_NODE) {
+		pxm_info.domain_id = node_to_pxm(node);
+		pxm_info.flags.proximity_info_valid = 1;
+		pxm_info.flags.proximity_preferred = 1;
+	}
+
+	return pxm_info;
+}
+
 /* Helper functions that provide a consistent pattern for checking Hyper-V hypercall status. */
 static inline int hv_result(u64 status)
 {
diff --git a/include/linux/hyperv.h b/include/linux/hyperv.h
index 6ef0557b4bff8..96ceb4095425e 100644
--- a/include/linux/hyperv.h
+++ b/include/linux/hyperv.h
@@ -832,6 +832,7 @@ struct vmbus_gpadl {
 	u32 gpadl_handle;
 	u32 size;
 	void *buffer;
+	bool decrypted;
 };
 
 struct vmbus_channel {