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| author | Joseph Salisbury <joseph.salisbury@microsoft.com> | 2021-04-17 03:43:02 +0300 |
|---|---|---|
| committer | Wei Liu <wei.liu@kernel.org> | 2021-04-21 12:49:19 +0300 |
| commit | 6523592cee4650c6aa997d69cd0045a01e07a1ef (patch) | |
| tree | 2b0317101dee865a77ea6e47a52538de4df9b106 /arch/x86/include/asm/mshyperv.h | |
| parent | aa5b7d11c7cb87c266d705b237368985e7171958 (diff) | |
| download | linux-6523592cee4650c6aa997d69cd0045a01e07a1ef.tar.xz | |
x86/hyperv: Move hv_do_rep_hypercall to asm-generic
This patch makes no functional changes. It simply moves hv_do_rep_hypercall()
out of arch/x86/include/asm/mshyperv.h and into asm-generic/mshyperv.h
hv_do_rep_hypercall() is architecture independent, so it makes sense that it
should be in the architecture independent mshyperv.h, not in the x86-specific
mshyperv.h.
This is done in preperation for a follow up patch which creates a consistent
pattern for checking Hyper-V hypercall status.
Signed-off-by: Joseph Salisbury <joseph.salisbury@microsoft.com>
Reviewed-by: Michael Kelley <mikelley@microsoft.com>
Link: https://lore.kernel.org/r/1618620183-9967-1-git-send-email-joseph.salisbury@linux.microsoft.com
Signed-off-by: Wei Liu <wei.liu@kernel.org>
Diffstat (limited to 'arch/x86/include/asm/mshyperv.h')
| -rw-r--r-- | arch/x86/include/asm/mshyperv.h | 32 |
1 files changed, 0 insertions, 32 deletions
diff --git a/arch/x86/include/asm/mshyperv.h b/arch/x86/include/asm/mshyperv.h index 6d4891bced80..be5a543212fe 100644 --- a/arch/x86/include/asm/mshyperv.h +++ b/arch/x86/include/asm/mshyperv.h @@ -147,38 +147,6 @@ static inline u64 hv_do_fast_hypercall16(u16 code, u64 input1, u64 input2) return hv_status; } -/* - * Rep hypercalls. Callers of this functions are supposed to ensure that - * rep_count and varhead_size comply with Hyper-V hypercall definition. - */ -static inline u64 hv_do_rep_hypercall(u16 code, u16 rep_count, u16 varhead_size, - void *input, void *output) -{ - u64 control = code; - u64 status; - u16 rep_comp; - - control |= (u64)varhead_size << HV_HYPERCALL_VARHEAD_OFFSET; - control |= (u64)rep_count << HV_HYPERCALL_REP_COMP_OFFSET; - - do { - status = hv_do_hypercall(control, input, output); - if ((status & HV_HYPERCALL_RESULT_MASK) != HV_STATUS_SUCCESS) - return status; - - /* Bits 32-43 of status have 'Reps completed' data. */ - rep_comp = (status & HV_HYPERCALL_REP_COMP_MASK) >> - HV_HYPERCALL_REP_COMP_OFFSET; - - control &= ~HV_HYPERCALL_REP_START_MASK; - control |= (u64)rep_comp << HV_HYPERCALL_REP_START_OFFSET; - - touch_nmi_watchdog(); - } while (rep_comp < rep_count); - - return status; -} - extern struct hv_vp_assist_page **hv_vp_assist_page; static inline struct hv_vp_assist_page *hv_get_vp_assist_page(unsigned int cpu) |