Orange Pi5 kernel

^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  1) /* SPDX-License-Identifier: GPL-2.0 or MIT */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  2) #ifndef _ASM_X86_VMWARE_H
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  3) #define _ASM_X86_VMWARE_H
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  4) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  5) #include <asm/cpufeatures.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  6) #include <asm/alternative.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  7) #include <linux/stringify.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  8) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  9) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 10)  * The hypercall definitions differ in the low word of the %edx argument
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 11)  * in the following way: the old port base interface uses the port
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 12)  * number to distinguish between high- and low bandwidth versions.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 13)  *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 14)  * The new vmcall interface instead uses a set of flags to select
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 15)  * bandwidth mode and transfer direction. The flags should be loaded
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 16)  * into %dx by any user and are automatically replaced by the port
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 17)  * number if the VMWARE_HYPERVISOR_PORT method is used.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 18)  *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 19)  * In short, new driver code should strictly use the new definition of
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 20)  * %dx content.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 21)  */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 22) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 23) /* Old port-based version */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 24) #define VMWARE_HYPERVISOR_PORT    0x5658
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 25) #define VMWARE_HYPERVISOR_PORT_HB 0x5659
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 26) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 27) /* Current vmcall / vmmcall version */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 28) #define VMWARE_HYPERVISOR_HB   BIT(0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 29) #define VMWARE_HYPERVISOR_OUT  BIT(1)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 30) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 31) /* The low bandwidth call. The low word of edx is presumed clear. */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 32) #define VMWARE_HYPERCALL						\
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 33) 	ALTERNATIVE_2("movw $" __stringify(VMWARE_HYPERVISOR_PORT) ", %%dx; " \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 34) 		      "inl (%%dx), %%eax",				\
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 35) 		      "vmcall", X86_FEATURE_VMCALL,			\
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 36) 		      "vmmcall", X86_FEATURE_VMW_VMMCALL)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 37) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 38) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 39)  * The high bandwidth out call. The low word of edx is presumed to have the
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 40)  * HB and OUT bits set.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 41)  */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 42) #define VMWARE_HYPERCALL_HB_OUT						\
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 43) 	ALTERNATIVE_2("movw $" __stringify(VMWARE_HYPERVISOR_PORT_HB) ", %%dx; " \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 44) 		      "rep outsb",					\
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 45) 		      "vmcall", X86_FEATURE_VMCALL,			\
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 46) 		      "vmmcall", X86_FEATURE_VMW_VMMCALL)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 47) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 48) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 49)  * The high bandwidth in call. The low word of edx is presumed to have the
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 50)  * HB bit set.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 51)  */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 52) #define VMWARE_HYPERCALL_HB_IN						\
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 53) 	ALTERNATIVE_2("movw $" __stringify(VMWARE_HYPERVISOR_PORT_HB) ", %%dx; " \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 54) 		      "rep insb",					\
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 55) 		      "vmcall", X86_FEATURE_VMCALL,			\
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 56) 		      "vmmcall", X86_FEATURE_VMW_VMMCALL)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 57) #endif