linux-kernel - [PATCH v5 06/10] Drivers/hv: Export some functions for use by root partition module

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Message-Id: <1740611284-27506-7-git-send-email-nunodasneves@linux.microsoft.com>
Date: Wed, 26 Feb 2025 15:08:00 -0800
From: Nuno Das Neves <nunodasneves@...ux.microsoft.com>
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Subject: [PATCH v5 06/10] Drivers/hv: Export some functions for use by root partition module

get_hypervisor_version, hv_call_deposit_pages, hv_call_create_vp,
hv_call_deposit_pages, and hv_call_create_vp are all needed in module
with CONFIG_MSHV_ROOT=m.

Signed-off-by: Nuno Das Neves <nunodasneves@...ux.microsoft.com>
---
 arch/arm64/hyperv/mshyperv.c   | 1 +
 arch/x86/kernel/cpu/mshyperv.c | 1 +
 drivers/hv/hv_common.c         | 1 +
 drivers/hv/hv_proc.c           | 3 ++-
 4 files changed, 5 insertions(+), 1 deletion(-)

diff --git a/arch/arm64/hyperv/mshyperv.c b/arch/arm64/hyperv/mshyperv.c
index 2265ea5ce5ad..4e27cc29c79e 100644
--- a/arch/arm64/hyperv/mshyperv.c
+++ b/arch/arm64/hyperv/mshyperv.c
@@ -26,6 +26,7 @@ int hv_get_hypervisor_version(union hv_hypervisor_version_info *info)
 
 	return 0;
 }
+EXPORT_SYMBOL_GPL(hv_get_hypervisor_version);
 
 static int __init hyperv_init(void)
 {
diff --git a/arch/x86/kernel/cpu/mshyperv.c b/arch/x86/kernel/cpu/mshyperv.c
index 2c29dfd6de19..0116d0e96ef9 100644
--- a/arch/x86/kernel/cpu/mshyperv.c
+++ b/arch/x86/kernel/cpu/mshyperv.c
@@ -420,6 +420,7 @@ int hv_get_hypervisor_version(union hv_hypervisor_version_info *info)
 
 	return 0;
 }
+EXPORT_SYMBOL_GPL(hv_get_hypervisor_version);
 
 static void __init ms_hyperv_init_platform(void)
 {
diff --git a/drivers/hv/hv_common.c b/drivers/hv/hv_common.c
index ce20818688fe..252fd66ad4db 100644
--- a/drivers/hv/hv_common.c
+++ b/drivers/hv/hv_common.c
@@ -717,6 +717,7 @@ int hv_result_to_errno(u64 status)
 	}
 	return -EIO;
 }
+EXPORT_SYMBOL_GPL(hv_result_to_errno);
 
 void hv_identify_partition_type(void)
 {
diff --git a/drivers/hv/hv_proc.c b/drivers/hv/hv_proc.c
index 8fc30f509fa7..20c8cee81e2b 100644
--- a/drivers/hv/hv_proc.c
+++ b/drivers/hv/hv_proc.c
@@ -108,6 +108,7 @@ int hv_call_deposit_pages(int node, u64 partition_id, u32 num_pages)
 	kfree(counts);
 	return ret;
 }
+EXPORT_SYMBOL_GPL(hv_call_deposit_pages);
 
 int hv_call_add_logical_proc(int node, u32 lp_index, u32 apic_id)
 {
@@ -194,4 +195,4 @@ int hv_call_create_vp(int node, u64 partition_id, u32 vp_index, u32 flags)
 
 	return ret;
 }
-
+EXPORT_SYMBOL_GPL(hv_call_create_vp);
-- 
2.34.1