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MCEXEC_UP_TRANSFER: generalize MCEXEC_UP_LOAD_IMAGE ioctl() to allow transfer in both directions

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This commit is contained in:
Balazs Gerofi bgerofi@riken.jp
2014-05-22 12:42:23 +09:00
parent f810aa56b8
commit 84c18ef38e
4 changed files with 40 additions and 19 deletions
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32
executer/kernel/control.c
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@ -152,9 +152,9 @@ free_out:
return ret;
}
int mcexec_load_image(ihk_os_t os, struct program_transfer *__user upt)
int mcexec_transfer_image(ihk_os_t os, struct remote_transfer *__user upt)
{
struct program_transfer pt;
struct remote_transfer pt;
unsigned long phys, ret = 0;
void *rpm;
#if 0
@ -172,16 +172,32 @@ int mcexec_load_image(ihk_os_t os, struct program_transfer *__user upt)
if (copy_from_user(&pt, upt, sizeof(pt))) {
return -EFAULT;
}
if (pt.size > PAGE_SIZE) {
printk("mcexec_transfer_image(): ERROR: size exceeds PAGE_SIZE\n");
return -EFAULT;
}
phys = ihk_device_map_memory(ihk_os_to_dev(os), pt.dest, PAGE_SIZE);
phys = ihk_device_map_memory(ihk_os_to_dev(os), pt.rphys, PAGE_SIZE);
#ifdef CONFIG_MIC
rpm = ioremap_wc(phys, PAGE_SIZE);
#else
rpm = ihk_device_map_virtual(ihk_os_to_dev(os), phys, PAGE_SIZE, NULL, 0);
#endif
if (copy_from_user(rpm, pt.src, PAGE_SIZE)) {
ret = -EFAULT;
if (pt.direction == MCEXEC_UP_TRANSFER_TO_REMOTE) {
if (copy_from_user(rpm, pt.userp, pt.size)) {
ret = -EFAULT;
}
}
else if (pt.direction == MCEXEC_UP_TRANSFER_FROM_REMOTE) {
if (copy_to_user(pt.userp, rpm, pt.size)) {
ret = -EFAULT;
}
}
else {
printk("mcexec_transfer_image(): ERROR: invalid direction\n");
ret = -EINVAL;
}
#ifdef CONFIG_MIC
@ -726,8 +742,8 @@ long __mcctrl_control(ihk_os_t os, unsigned int req, unsigned long arg)
case MCEXEC_UP_PREPARE_IMAGE:
return mcexec_prepare_image(os,
(struct program_load_desc *)arg);
case MCEXEC_UP_LOAD_IMAGE:
return mcexec_load_image(os, (struct program_transfer *)arg);
case MCEXEC_UP_TRANSFER:
return mcexec_transfer_image(os, (struct remote_transfer *)arg);
case MCEXEC_UP_START_IMAGE:
return mcexec_start_image(os, (struct program_load_desc *)arg);

2
executer/kernel/driver.c
View File

@ -44,7 +44,7 @@ static long mcctrl_ioctl(ihk_os_t os, unsigned int request, void *priv,
static struct ihk_os_user_call_handler mcctrl_uchs[] = {
{ .request = MCEXEC_UP_PREPARE_IMAGE, .func = mcctrl_ioctl },
{ .request = MCEXEC_UP_LOAD_IMAGE, .func = mcctrl_ioctl },
{ .request = MCEXEC_UP_TRANSFER, .func = mcctrl_ioctl },
{ .request = MCEXEC_UP_START_IMAGE, .func = mcctrl_ioctl },
{ .request = MCEXEC_UP_WAIT_SYSCALL, .func = mcctrl_ioctl },
{ .request = MCEXEC_UP_RET_SYSCALL, .func = mcctrl_ioctl },