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/*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation;
* version 2.1 of the License.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
#include <stdlib.h>
#include <inttypes.h>
#include <asm/kregs.h>
#include <xen/xen.h>
#include <xen/foreign/ia64.h>
#include <xen/io/protocols.h>
#include "xg_private.h"
#include "xc_dom.h"
#include "ia64/xc_dom_ia64_util.h"
static const char fw_magic[16] = {'X', 'e', 'n', '-',
'i', 'a', '6', '4',
'-', 'f', 'w', 0,
0, 0, 0, 0};
#define FW_LOAD 0xff800000UL
#define FW_SIZE (8 * 1024 * 1024)
static int xc_dom_probe_fw_kernel(struct xc_dom_image *dom)
{
if (dom->kernel_size != FW_SIZE)
return -EINVAL;
if (memcmp (dom->kernel_blob, fw_magic, sizeof (fw_magic)))
return -EINVAL;
return 0;
}
static int xc_dom_parse_fw_kernel(struct xc_dom_image *dom)
{
dom->kernel_seg.vstart = FW_LOAD;
dom->kernel_seg.vend = FW_LOAD + FW_SIZE;
dom->parms.virt_base = FW_MEM_BASE;
dom->parms.virt_entry = FW_LOAD + sizeof (fw_magic);
dom->ramdisk_blob = NULL; /* No ramdisk yet. */
dom->guest_type = "hvm-3.0-ia64-sioemu";
return 0;
}
static int xc_dom_load_fw_kernel(struct xc_dom_image *dom)
{
char *dest;
unsigned long i;
dest = xc_dom_vaddr_to_ptr(dom, dom->kernel_seg.vstart);
if ( dest == NULL )
return -1;
memcpy(dest, dom->kernel_blob, FW_SIZE);
/* Synchronize cache. */
for (i = 0; i < FW_SIZE; i += 32)
asm volatile ("fc.i %0" :: "r"(dest + i) : "memory");
return 0;
}
/* ------------------------------------------------------------------------ */
static int alloc_magic_pages(struct xc_dom_image *dom)
{
/* allocate special pages */
/* Note: do not use 0 for console or xenstore otherwise clear_page won't
clear the page. */
dom->start_info_pfn = 0;
dom->console_pfn = 1;
dom->xenstore_pfn = 2;
return 0;
}
extern unsigned long xc_ia64_fpsr_default(void);
static int vcpu_ia64(struct xc_dom_image *dom, void *ptr)
{
vcpu_guest_context_ia64_t *ctxt = ptr;
DOMPRINTF_CALLED(dom->xch);
/* clear everything */
memset(ctxt, 0, sizeof(*ctxt));
ctxt->flags = 0;
ctxt->regs.ip = dom->parms.virt_entry;
#ifdef __ia64__ /* FIXME */
ctxt->regs.ar.fpsr = xc_ia64_fpsr_default();
#endif
ctxt->regs.cr.isr = 1UL << 63;
ctxt->regs.psr = IA64_PSR_AC | IA64_PSR_BN;
ctxt->regs.cr.dcr = 0;
ctxt->regs.cr.pta = 15 << 2;
return 0;
}
static struct xc_dom_arch xc_dom_arch_ia64_fw = {
.guest_type = "hvm-3.0-ia64-sioemu",
.native_protocol = XEN_IO_PROTO_ABI_IA64,
.page_shift = PAGE_SHIFT_IA64,
.alloc_magic_pages = alloc_magic_pages,
.start_info = start_info_ia64,
.shared_info = shared_info_ia64,
.vcpu = vcpu_ia64,
};
/* ------------------------------------------------------------------------ */
static struct xc_dom_loader fw_loader = {
.name = "xen-ia64-fw",
.probe = xc_dom_probe_fw_kernel,
.parser = xc_dom_parse_fw_kernel,
.loader = xc_dom_load_fw_kernel,
};
static void __init register_fwloader(void)
{
xc_dom_register_arch_hooks(&xc_dom_arch_ia64_fw);
xc_dom_register_loader(&fw_loader);
}
/*
* Local variables:
* mode: C
* c-set-style: "BSD"
* c-basic-offset: 4
* tab-width: 4
* indent-tabs-mode: nil
* End:
*/
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