iCE40/yosys - clone of https://github.com/YosysHQ/yosys

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Diffstat (limited to 'backends/ilang')

0 files changed, 0 insertions, 0 deletions

#ifndef XC_PRIVATE_H #define XC_PRIVATE_H #include <unistd.h> #include <stdio.h> #include <errno.h> #include <fcntl.h> #include <string.h> #include <sys/mman.h> #include <sys/types.h> #include <sys/stat.h> #include <stdlib.h> #include <sys/ioctl.h> #include "xenctrl.h" #include <xen/sys/privcmd.h> /* valgrind cannot see when a hypercall has filled in some values. For this reason, we must zero the privcmd_hypercall_t or domctl/sysctl instance before a call, if using valgrind. */ #ifdef VALGRIND #define DECLARE_HYPERCALL privcmd_hypercall_t hypercall = { 0 } #define DECLARE_DOMCTL struct xen_domctl domctl = { 0 } #define DECLARE_SYSCTL struct xen_sysctl sysctl = { 0 } #define DECLARE_PHYSDEV_OP struct physdev_op physdev_op = { 0 } #else #define DECLARE_HYPERCALL privcmd_hypercall_t hypercall #define DECLARE_DOMCTL struct xen_domctl domctl #define DECLARE_SYSCTL struct xen_sysctl sysctl #define DECLARE_PHYSDEV_OP struct physdev_op physdev_op #endif #undef PAGE_SHIFT #undef PAGE_SIZE #undef PAGE_MASK #define PAGE_SHIFT XC_PAGE_SHIFT #define PAGE_SIZE (1UL << PAGE_SHIFT) #define PAGE_MASK (~(PAGE_SIZE-1)) #define DEBUG 1 #define INFO 1 #define PROGRESS 0 /* Force a compilation error if condition is true */ #define XC_BUILD_BUG_ON(p) ((void)sizeof(struct { int:-!!(p); })) /* ** Define max dirty page cache to permit during save/restore -- need to balance ** keeping cache usage down with CPU impact of invalidating too often. ** (Currently 16MB) */ #define MAX_PAGECACHE_USAGE (4*1024) #if INFO #define IPRINTF(_f, _a...) printf(_f , ## _a) #else #define IPRINTF(_f, _a...) ((void)0) #endif #if DEBUG #define DPRINTF(_f, _a...) fprintf(stderr, _f , ## _a) #else #define DPRINTF(_f, _a...) ((void)0) #endif #if PROGRESS #define PPRINTF(_f, _a...) fprintf(stderr, _f , ## _a) #else #define PPRINTF(_f, _a...) #endif char *safe_strerror(int errcode); void xc_set_error(int code, const char *fmt, ...); #define ERROR(_m, _a...) xc_set_error(XC_INTERNAL_ERROR, _m , ## _a ) #define PERROR(_m, _a...) xc_set_error(XC_INTERNAL_ERROR, _m " (%d = %s)", \ ## _a , errno, safe_strerror(errno)) int lock_pages(void *addr, size_t len); void unlock_pages(void *addr, size_t len); static inline void safe_munlock(const void *addr, size_t len) { int saved_errno = errno; (void)munlock(addr, len); errno = saved_errno; } int do_xen_hypercall(int xc_handle, privcmd_hypercall_t *hypercall); static inline int do_xen_version(int xc_handle, int cmd, void *dest) { DECLARE_HYPERCALL; hypercall.op = __HYPERVISOR_xen_version; hypercall.arg[0] = (unsigned long) cmd; hypercall.arg[1] = (unsigned long) dest; return do_xen_hypercall(xc_handle, &hypercall); } static inline int do_physdev_op(int xc_handle, int cmd, void *op) { int ret = -1; DECLARE_HYPERCALL; hypercall.op = __HYPERVISOR_physdev_op; hypercall.arg[0] = (unsigned long) cmd; hypercall.arg[1] = (unsigned long) op; if ( lock_pages(op, sizeof(*op)) != 0 ) { PERROR("Could not lock memory for Xen hypercall"); goto out1; } if ( (ret = do_xen_hypercall(xc_handle, &hypercall)) < 0 ) { if ( errno == EACCES ) DPRINTF("physdev operation failed -- need to" " rebuild the user-space tool set?\n"); } unlock_pages(op, sizeof(*op)); out1: return ret; } static inline int do_domctl(int xc_handle, struct xen_domctl *domctl) { int ret = -1; DECLARE_HYPERCALL; domctl->interface_version = XEN_DOMCTL_INTERFACE_VERSION; hypercall.op = __HYPERVISOR_domctl; hypercall.arg[0] = (unsigned long)domctl; if ( lock_pages(domctl, sizeof(*domctl)) != 0 ) { PERROR("Could not lock memory for Xen hypercall"); goto out1; } if ( (ret = do_xen_hypercall(xc_handle, &hypercall)) < 0 ) { if ( errno == EACCES ) DPRINTF("domctl operation failed -- need to" " rebuild the user-space tool set?\n"); } unlock_pages(domctl, sizeof(*domctl)); out1: return ret; } static inline int do_sysctl(int xc_handle, struct xen_sysctl *sysctl) { int ret = -1; DECLARE_HYPERCALL; sysctl->interface_version = XEN_SYSCTL_INTERFACE_VERSION; hypercall.op = __HYPERVISOR_sysctl; hypercall.arg[0] = (unsigned long)sysctl; if ( lock_pages(sysctl, sizeof(*sysctl)) != 0 ) { PERROR("Could not lock memory for Xen hypercall"); goto out1; } if ( (ret = do_xen_hypercall(xc_handle, &hypercall)) < 0 ) { if ( errno == EACCES ) DPRINTF("sysctl operation failed -- need to" " rebuild the user-space tool set?\n"); } unlock_pages(sysctl, sizeof(*sysctl)); out1: return ret; } void *xc_map_foreign_ranges(int xc_handle, uint32_t dom, size_t size, int prot, size_t chunksize, privcmd_mmap_entry_t entries[], int nentries); void bitmap_64_to_byte(uint8_t *bp, const uint64_t *lp, int nbits); void bitmap_byte_to_64(uint64_t *lp, const uint8_t *bp, int nbits); /* Optionally flush file to disk and discard page cache */ void discard_file_cache(int fd, int flush); #define MAX_MMU_UPDATES 1024 struct xc_mmu { mmu_update_t updates[MAX_MMU_UPDATES]; int idx; domid_t subject; }; /* Structure returned by xc_alloc_mmu_updates must be free()'ed by caller. */ struct xc_mmu *xc_alloc_mmu_updates(int xc_handle, domid_t dom); int xc_add_mmu_update(int xc_handle, struct xc_mmu *mmu, unsigned long long ptr, unsigned long long val); int xc_flush_mmu_updates(int xc_handle, struct xc_mmu *mmu); /* Return 0 on success; -1 on error. */ int read_exact(int fd, void *data, size_t size); int write_exact(int fd, const void *data, size_t size); int xc_ffs8(uint8_t x); int xc_ffs16(uint16_t x); int xc_ffs32(uint32_t x); int xc_ffs64(uint64_t x); #endif /* __XC_PRIVATE_H__ */


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