[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index] [PATCH] libs/foreignmemory: Implement on NetBSD
From: Manuel Bouyer <bouyer@xxxxxxxxxx> Implement foreignmemory interface on NetBSD. The compat interface is now used only on __sun__ Signed-off-by: Manuel Bouyer <bouyer@xxxxxxxxxx> --- tools/libs/foreignmemory/Makefile | 2 +- tools/libs/foreignmemory/netbsd.c | 75 ++++++++++++++++++++++++++---- tools/libs/foreignmemory/private.h | 6 +-- 3 files changed, 69 insertions(+), 14 deletions(-) diff --git a/tools/libs/foreignmemory/Makefile b/tools/libs/foreignmemory/Makefile index 13850f7988..f191cdbed0 100644 --- a/tools/libs/foreignmemory/Makefile +++ b/tools/libs/foreignmemory/Makefile @@ -8,7 +8,7 @@ SRCS-y += core.c SRCS-$(CONFIG_Linux) += linux.c SRCS-$(CONFIG_FreeBSD) += freebsd.c SRCS-$(CONFIG_SunOS) += compat.c solaris.c -SRCS-$(CONFIG_NetBSD) += compat.c netbsd.c +SRCS-$(CONFIG_NetBSD) += netbsd.c SRCS-$(CONFIG_MiniOS) += minios.c include $(XEN_ROOT)/tools/libs/libs.mk diff --git a/tools/libs/foreignmemory/netbsd.c b/tools/libs/foreignmemory/netbsd.c index 54a418ebd6..c2a691daed 100644 --- a/tools/libs/foreignmemory/netbsd.c +++ b/tools/libs/foreignmemory/netbsd.c @@ -19,7 +19,9 @@ #include <unistd.h> #include <fcntl.h> +#include <errno.h> #include <sys/mman.h> +#include <sys/ioctl.h> #include "private.h" @@ -66,15 +68,17 @@ int osdep_xenforeignmemory_close(xenforeignmemory_handle *fmem) return close(fd); } -void *osdep_map_foreign_batch(xenforeignmem_handle *fmem, uint32_t dom, - void *addr, int prot, int flags, - xen_pfn_t *arr, int num) +void *osdep_xenforeignmemory_map(xenforeignmemory_handle *fmem, + uint32_t dom, void *addr, + int prot, int flags, size_t num, + const xen_pfn_t arr[/*num*/], int err[/*num*/]) + { int fd = fmem->fd; - privcmd_mmapbatch_t ioctlx; - addr = mmap(addr, num*XC_PAGE_SIZE, prot, flags | MAP_ANON | MAP_SHARED, -1, 0); + privcmd_mmapbatch_v2_t ioctlx; + addr = mmap(addr, num*PAGE_SIZE, prot, flags | MAP_ANON | MAP_SHARED, -1, 0); if ( addr == MAP_FAILED ) { - PERROR("osdep_map_foreign_batch: mmap failed"); + PERROR("osdep_xenforeignmemory_map: mmap failed"); return NULL; } @@ -82,11 +86,12 @@ void *osdep_map_foreign_batch(xenforeignmem_handle *fmem, uint32_t dom, ioctlx.dom=dom; ioctlx.addr=(unsigned long)addr; ioctlx.arr=arr; - if ( ioctl(fd, IOCTL_PRIVCMD_MMAPBATCH, &ioctlx) < 0 ) + ioctlx.err=err; + if ( ioctl(fd, IOCTL_PRIVCMD_MMAPBATCH_V2, &ioctlx) < 0 ) { int saved_errno = errno; - PERROR("osdep_map_foreign_batch: ioctl failed"); - (void)munmap(addr, num*XC_PAGE_SIZE); + PERROR("osdep_xenforeignmemory_map: ioctl failed"); + (void)munmap(addr, num*PAGE_SIZE); errno = saved_errno; return NULL; } @@ -97,7 +102,57 @@ void *osdep_map_foreign_batch(xenforeignmem_handle *fmem, uint32_t dom, int osdep_xenforeignmemory_unmap(xenforeignmemory_handle *fmem, void *addr, size_t num) { - return munmap(addr, num*XC_PAGE_SIZE); + return munmap(addr, num*PAGE_SIZE); +} + +int osdep_xenforeignmemory_restrict(xenforeignmemory_handle *fmem, + domid_t domid) +{ + errno = EOPNOTSUPP; + return -1; +} + +int osdep_xenforeignmemory_unmap_resource( + xenforeignmemory_handle *fmem, xenforeignmemory_resource_handle *fres) +{ + return fres ? munmap(fres->addr, fres->nr_frames << PAGE_SHIFT) : 0; +} + +int osdep_xenforeignmemory_map_resource( + xenforeignmemory_handle *fmem, xenforeignmemory_resource_handle *fres) +{ + privcmd_mmap_resource_t mr = { + .dom = fres->domid, + .type = fres->type, + .id = fres->id, + .idx = fres->frame, + .num = fres->nr_frames, + }; + int rc; + + fres->addr = mmap(fres->addr, fres->nr_frames << PAGE_SHIFT, + fres->prot, fres->flags | MAP_ANON | MAP_SHARED, -1, 0); + if ( fres->addr == MAP_FAILED ) + return -1; + + mr.addr = (uintptr_t)fres->addr; + + rc = ioctl(fmem->fd, IOCTL_PRIVCMD_MMAP_RESOURCE, &mr); + if ( rc ) + { + int saved_errno; + + if ( errno != EOPNOTSUPP ) + PERROR("ioctl failed"); + + saved_errno = errno; + (void)osdep_xenforeignmemory_unmap_resource(fmem, fres); + errno = saved_errno; + + return -1; + } + + return 0; } /* diff --git a/tools/libs/foreignmemory/private.h b/tools/libs/foreignmemory/private.h index b522a2b86b..f7569d4f6b 100644 --- a/tools/libs/foreignmemory/private.h +++ b/tools/libs/foreignmemory/private.h @@ -42,9 +42,9 @@ void *osdep_xenforeignmemory_map(xenforeignmemory_handle *fmem, int osdep_xenforeignmemory_unmap(xenforeignmemory_handle *fmem, void *addr, size_t num); -#if defined(__NetBSD__) || defined(__sun__) +#if defined(__sun__) /* Strictly compat for those two only only */ -void *compat_mapforeign_batch(xenforeignmem_handle *fmem, uint32_t dom, +void *osdep_map_foreign_batch(xenforeignmemory_handle *fmem, uint32_t dom, void *addr, int prot, int flags, xen_pfn_t *arr, int num); #endif @@ -60,7 +60,7 @@ struct xenforeignmemory_resource_handle { int flags; }; -#ifndef __linux__ +#if !defined(__linux__) && !defined(__NetBSD__) static inline int osdep_xenforeignmemory_restrict(xenforeignmemory_handle *fmem, domid_t domid) { -- 2.29.2
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