blob: bd352fe5df754031dd0e2db0e6faede2a38cb485 (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
|
#include "pk.h"
#include "vm.h"
#include "frontend.h"
#include "sbi.h"
#include "mcall.h"
#include <errno.h>
uintptr_t __sbi_query_memory(uintptr_t id, memory_block_info *p)
{
if (id == 0) {
p->base = current.first_free_paddr;
p->size = mem_size - p->base;
return 0;
}
return -1;
}
#define LOW_IRQ_OK(n) ((n) == IRQ_S_SOFT || (n) == IRQ_S_TIMER)
uintptr_t __sbi_mask_interrupt(uintptr_t which)
{
if (!LOW_IRQ_OK(which))
return -1;
clear_csr(sie, 1UL << which);
return 0;
}
uintptr_t __sbi_unmask_interrupt(uintptr_t which)
{
if (!LOW_IRQ_OK(which))
return -1;
set_csr(sie, 1UL << which);
return 0;
}
|