Commit f908d3a4 authored by Charles Jacobsen's avatar Charles Jacobsen Committed by Vikram Narayanan

Fixed bug - wasn't unmapping module from lcd arch.

parent 0f690a86
......@@ -906,6 +906,37 @@ static int lcd_module_map_page(struct lcd *lcd, hpa_t hpa, hva_t hva)
return 0;
}
/**
* Callback used with vmalloc walk to unmap module pages.
*/
static int lcd_module_unmap_page(struct lcd *lcd, hpa_t hpa, hva_t hva)
{
int ret;
gpa_t gpa;
gva_t gva;
gva = __gva(hva_val(hva));
gpa = __gpa(gva_val(gva));
/*
* Unmap module page in lcd's ept
*/
ret = lcd_arch_ept_unmap(lcd->lcd_arch, gpa);
if (ret) {
LCD_ERR("error unmapping gpa in ept");
return ret;
}
/*
* Unmap module page in lcd's guest virtual
*/
ret = lcd_mm_gva_unmap(lcd, gva);
if (ret) {
LCD_ERR("error unmapping gva in gv");
return ret;
}
return 0;
}
/* LCD CREATE / DESTROY -------------------------------------------------- */
/**
......@@ -1123,6 +1154,20 @@ void lcd_destroy(struct lcd *lcd)
if (ret)
LCD_ERR("deleting module");
}
/*
* IMPORTANT: We must unmap the module from the lcd *before*
* we tear down the lcd_arch (the lcd arch code will automatically
* free any pages that are still mapped in the ept).
*/
ret = lcd_vmalloc_walk(lcd, va2hva(lcd->module->module_init),
lcd->module->init_size, lcd_module_unmap_page);
if (ret)
LCD_ERR("unmapping module's init, continuing ...");
ret = lcd_vmalloc_walk(lcd, va2hva(lcd->module->module_core),
lcd->module->core_size, lcd_module_unmap_page);
if (ret)
LCD_ERR("unmapping module's core, continuing ...");
/*
* Tear down lcd_arch (ept, ...)
*/
......
......@@ -475,6 +475,8 @@ fail1:
return ret;
}
#if 0
static int test08(void)
{
struct lcd *lcd;
......@@ -518,6 +520,8 @@ fail1:
return -1;
}
#endif
static void lcd_tests(void)
{
if (test01())
......@@ -534,8 +538,8 @@ static void lcd_tests(void)
return;
if (test07())
return;
if (test08())
return;
// if (test08())
// return;
LCD_MSG("all tests passed!");
return;
}
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