diff options
Diffstat (limited to 'tools/libxc/xc_vmx_build.c')
| -rw-r--r-- | tools/libxc/xc_vmx_build.c | 15 |
1 files changed, 15 insertions, 0 deletions
diff --git a/tools/libxc/xc_vmx_build.c b/tools/libxc/xc_vmx_build.c index 4d34d0ed8d..7b46651854 100644 --- a/tools/libxc/xc_vmx_build.c +++ b/tools/libxc/xc_vmx_build.c @@ -8,6 +8,7 @@ #include "xc_elf.h" #include <stdlib.h> #include <zlib.h> +#include <xen/io/ioreq.h> #include "linux_boot_params.h" #define L1_PROT (_PAGE_PRESENT|_PAGE_RW|_PAGE_ACCESSED|_PAGE_USER) @@ -174,6 +175,9 @@ static int setup_guest(int xc_handle, unsigned long vpt_end; unsigned long v_end; + unsigned long shared_page_frame = 0; + shared_iopage_t *sp; + memset(&dsi, 0, sizeof(struct domain_setup_info)); if ( (rc = parseelfimage(image, image_size, &dsi)) != 0 ) @@ -382,6 +386,8 @@ static int setup_guest(int xc_handle, boot_paramsp->e820_map[i].addr = mem_mapp->map[i].addr; boot_paramsp->e820_map[i].size = mem_mapp->map[i].size; boot_paramsp->e820_map[i].type = mem_mapp->map[i].type; + if (mem_mapp->map[i].type == E820_SHARED) + shared_page_frame = (mem_mapp->map[i].addr >> PAGE_SHIFT); } munmap(boot_paramsp, PAGE_SIZE); @@ -407,6 +413,15 @@ static int setup_guest(int xc_handle, shared_info->vcpu_data[i].evtchn_upcall_mask = 1; munmap(shared_info, PAGE_SIZE); + /* Populate the event channel port in the shared page */ + if ((sp = (shared_iopage_t *) xc_map_foreign_range( + xc_handle, dom, PAGE_SIZE, PROT_READ|PROT_WRITE, + page_array[shared_page_frame])) == 0) + goto error_out; + memset(sp, 0, PAGE_SIZE); + sp->sp_global.eport = control_evtchn; + munmap(sp, PAGE_SIZE); + /* * Pin down l2tab addr as page dir page - causes hypervisor to provide * correct protection for the page |