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authorWei Liu <wei.liu@kernel.org>2021-02-03 15:04:25 +0000
committerWei Liu <wei.liu@kernel.org>2021-02-11 08:47:06 +0000
commit99a0f46af6a7715147e81c558d558021aad4e207 (patch)
tree6766b7ff294dc7bfaa3ec8130e7a8ca668ad5740 /arch/x86/include
parent5d0f077e0f413b7eca827b16ea8bfc4569e3946c (diff)
downloadlinux-99a0f46af6a7715147e81c558d558021aad4e207.tar.gz
x86/hyperv: extract partition ID from Microsoft Hypervisor if necessary
We will need the partition ID for executing some hypercalls later. Signed-off-by: Lillian Grassin-Drake <ligrassi@microsoft.com> Co-Developed-by: Sunil Muthuswamy <sunilmut@microsoft.com> Signed-off-by: Wei Liu <wei.liu@kernel.org> Reviewed-by: Michael Kelley <mikelley@microsoft.com> Link: https://lore.kernel.org/r/20210203150435.27941-7-wei.liu@kernel.org
Diffstat (limited to 'arch/x86/include')
-rw-r--r--arch/x86/include/asm/mshyperv.h2
1 files changed, 2 insertions, 0 deletions
diff --git a/arch/x86/include/asm/mshyperv.h b/arch/x86/include/asm/mshyperv.h
index ef06cdac8444..b8324202d850 100644
--- a/arch/x86/include/asm/mshyperv.h
+++ b/arch/x86/include/asm/mshyperv.h
@@ -80,6 +80,8 @@ extern void *hv_hypercall_pg;
extern void __percpu **hyperv_pcpu_input_arg;
extern void __percpu **hyperv_pcpu_output_arg;
+extern u64 hv_current_partition_id;
+
static inline u64 hv_do_hypercall(u64 control, void *input, void *output)
{
u64 input_address = input ? virt_to_phys(input) : 0;