diff options
Diffstat (limited to 'qemu/roms/ipxe/src/arch/x86/include/bits/xen.h')
| -rw-r--r-- | qemu/roms/ipxe/src/arch/x86/include/bits/xen.h | 183 |
1 files changed, 0 insertions, 183 deletions
diff --git a/qemu/roms/ipxe/src/arch/x86/include/bits/xen.h b/qemu/roms/ipxe/src/arch/x86/include/bits/xen.h deleted file mode 100644 index fc065ea38..000000000 --- a/qemu/roms/ipxe/src/arch/x86/include/bits/xen.h +++ /dev/null @@ -1,183 +0,0 @@ -#ifndef _BITS_XEN_H -#define _BITS_XEN_H - -/** @file - * - * Xen interface - * - */ - -FILE_LICENCE ( GPL2_OR_LATER_OR_UBDL ); - -/* Hypercall registers */ -#ifdef __x86_64__ -#define XEN_REG1 "rdi" -#define XEN_REG2 "rsi" -#define XEN_REG3 "rdx" -#define XEN_REG4 "r10" -#define XEN_REG5 "r8" -#else -#define XEN_REG1 "ebx" -#define XEN_REG2 "ecx" -#define XEN_REG3 "edx" -#define XEN_REG4 "esi" -#define XEN_REG5 "edi" -#endif - -/** A hypercall entry point */ -struct xen_hypercall { - /** Code generated by hypervisor */ - uint8_t code[32]; -} __attribute__ (( packed )); - -/** - * Issue hypercall with one argument - * - * @v xen Xen hypervisor - * @v hypercall Hypercall number - * @v arg1 First argument - * @ret retval Return value - */ -static inline __attribute__ (( always_inline )) unsigned long -xen_hypercall_1 ( struct xen_hypervisor *xen, unsigned int hypercall, - unsigned long arg1 ) { - register unsigned long reg1 asm ( XEN_REG1 ) = arg1; - unsigned long retval; - - __asm__ __volatile__ ( "call *%2" - : "=a" ( retval ), "+r" ( reg1 ) - : "r" ( &xen->hypercall[hypercall] ) - : XEN_REG2, XEN_REG3, XEN_REG4, XEN_REG5, - "memory" ); - return retval; -} - -/** - * Issue hypercall with two arguments - * - * @v xen Xen hypervisor - * @v hypercall Hypercall number - * @v arg1 First argument - * @v arg2 Second argument - * @ret retval Return value - */ -static inline __attribute__ (( always_inline )) unsigned long -xen_hypercall_2 ( struct xen_hypervisor *xen, unsigned int hypercall, - unsigned long arg1, unsigned long arg2 ) { - register unsigned long reg1 asm ( XEN_REG1 ) = arg1; - register unsigned long reg2 asm ( XEN_REG2 ) = arg2; - unsigned long retval; - - __asm__ __volatile__ ( "call *%3" - : "=a" ( retval ), "+r" ( reg1 ), "+r" ( reg2 ) - : "r" ( &xen->hypercall[hypercall] ) - : XEN_REG3, XEN_REG4, XEN_REG5, "memory" ); - return retval; -} - -/** - * Issue hypercall with three arguments - * - * @v xen Xen hypervisor - * @v hypercall Hypercall number - * @v arg1 First argument - * @v arg2 Second argument - * @v arg3 Third argument - * @ret retval Return value - */ -static inline __attribute__ (( always_inline )) unsigned long -xen_hypercall_3 ( struct xen_hypervisor *xen, unsigned int hypercall, - unsigned long arg1, unsigned long arg2, unsigned long arg3 ) { - register unsigned long reg1 asm ( XEN_REG1 ) = arg1; - register unsigned long reg2 asm ( XEN_REG2 ) = arg2; - register unsigned long reg3 asm ( XEN_REG3 ) = arg3; - unsigned long retval; - - __asm__ __volatile__ ( "call *%4" - : "=a" ( retval ), "+r" ( reg1 ), "+r" ( reg2 ), - "+r" ( reg3 ) - : "r" ( &xen->hypercall[hypercall] ) - : XEN_REG4, XEN_REG5, "memory" ); - return retval; -} - -/** - * Issue hypercall with four arguments - * - * @v xen Xen hypervisor - * @v hypercall Hypercall number - * @v arg1 First argument - * @v arg2 Second argument - * @v arg3 Third argument - * @v arg4 Fourth argument - * @ret retval Return value - */ -static inline __attribute__ (( always_inline )) unsigned long -xen_hypercall_4 ( struct xen_hypervisor *xen, unsigned int hypercall, - unsigned long arg1, unsigned long arg2, unsigned long arg3, - unsigned long arg4 ) { - register unsigned long reg1 asm ( XEN_REG1 ) = arg1; - register unsigned long reg2 asm ( XEN_REG2 ) = arg2; - register unsigned long reg3 asm ( XEN_REG3 ) = arg3; - register unsigned long reg4 asm ( XEN_REG4 ) = arg4; - unsigned long retval; - - __asm__ __volatile__ ( "call *%5" - : "=a" ( retval ), "+r" ( reg1 ), "+r" ( reg2 ), - "+r" ( reg3 ), "+r" ( reg4 ) - : "r" ( &xen->hypercall[hypercall] ) - : XEN_REG5, "memory" ); - return retval; -} - -/** - * Issue hypercall with five arguments - * - * @v xen Xen hypervisor - * @v hypercall Hypercall number - * @v arg1 First argument - * @v arg2 Second argument - * @v arg3 Third argument - * @v arg4 Fourth argument - * @v arg5 Fifth argument - * @ret retval Return value - */ -static inline __attribute__ (( always_inline )) unsigned long -xen_hypercall_5 ( struct xen_hypervisor *xen, unsigned int hypercall, - unsigned long arg1, unsigned long arg2, unsigned long arg3, - unsigned long arg4, unsigned long arg5 ) { - register unsigned long reg1 asm ( XEN_REG1 ) = arg1; - register unsigned long reg2 asm ( XEN_REG2 ) = arg2; - register unsigned long reg3 asm ( XEN_REG3 ) = arg3; - register unsigned long reg4 asm ( XEN_REG4 ) = arg4; - register unsigned long reg5 asm ( XEN_REG5 ) = arg5; - unsigned long retval; - - __asm__ __volatile__ ( "call *%6" - : "=a" ( retval ), "+r" ( reg1 ), "+r" ( reg2 ), - "+r" ( reg3 ), "+r" ( reg4 ), "+r" ( reg5 ) - : "r" ( &xen->hypercall[hypercall] ) - : "memory" ); - return retval; -} - -/** - * Test and clear pending event - * - * @v xen Xen hypervisor - * @v port Event channel port - * @ret pending Event was pending - */ -static inline __attribute__ (( always_inline )) uint8_t -xenevent_pending ( struct xen_hypervisor *xen, evtchn_port_t port ) { - uint8_t pending; - - __asm__ __volatile__ ( "lock btr %2, %0\n\t" - "setc %1\n\t" - : "+m" ( xen->shared->evtchn_pending ), - "=a" ( pending ) - : "Ir" ( port ) ); - return pending; -} - -#endif /* _BITS_XEN_H */ |