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hvlog.c

/*
 * Copyright (C) 2001  Mike Corrigan IBM Corporation
 * 
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation; either version 2 of the License, or
 * (at your option) any later version.
 */

#include <asm/page.h>
#include <asm/abs_addr.h>
#include <asm/iseries/hv_call.h>
#include <asm/iseries/hv_call_sc.h>
#include <asm/iseries/hv_types.h>


void HvCall_writeLogBuffer(const void *buffer, u64 len)
{
      struct HvLpBufferList hv_buf;
      u64 left_this_page;
      u64 cur = virt_to_abs(buffer);

      while (len) {
            hv_buf.addr = cur;
            left_this_page = ((cur & HW_PAGE_MASK) + HW_PAGE_SIZE) - cur;
            if (left_this_page > len)
                  left_this_page = len;
            hv_buf.len = left_this_page;
            len -= left_this_page;
            HvCall2(HvCallBaseWriteLogBuffer,
                        virt_to_abs(&hv_buf),
                        left_this_page);
            cur = (cur & HW_PAGE_MASK) + HW_PAGE_SIZE;
      }
}

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