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| author | Wei Liu <wei.liu@kernel.org> | 2021-02-03 18:04:25 +0300 |
|---|---|---|
| committer | Wei Liu <wei.liu@kernel.org> | 2021-02-11 11:47:06 +0300 |
| commit | 99a0f46af6a7715147e81c558d558021aad4e207 (patch) | |
| tree | 6766b7ff294dc7bfaa3ec8130e7a8ca668ad5740 /arch/x86/include/asm | |
| parent | 5d0f077e0f413b7eca827b16ea8bfc4569e3946c (diff) | |
| download | linux-99a0f46af6a7715147e81c558d558021aad4e207.tar.xz | |
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/asm')
| -rw-r--r-- | arch/x86/include/asm/mshyperv.h | 2 |
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; |