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This commit is contained in:
Bas Wijnen 2009-05-27 19:29:21 +02:00
parent 305bc03711
commit 3fc672f50f
2 changed files with 16 additions and 10 deletions
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6
boot-programs/sos.h
View File

@ -48,9 +48,9 @@ extern "C" {
#define CAP_THREAD_ALL_PRIV_RIGHTS (CAP_THREAD_ALL_RIGHTS | (1 << CAP_THREAD_REGISTER_INTERRUPT) | (1 << CAP_THREAD_GET_TOP_MEMORY))
/* These get/set_info are not arch-specific. */
#define CAP_THREAD_INFO_PC 0
#define CAP_THREAD_INFO_SP 1
#define CAP_THREAD_INFO_FLAGS 2
#define CAP_THREAD_INFO_PC ~0
#define CAP_THREAD_INFO_SP ~1
#define CAP_THREAD_INFO_FLAGS ~2
/* Flag values for processor state */
#define THREAD_FLAG_WAITING 0x80000000
#define THREAD_FLAG_RUNNING 0x40000000

20
invoke.ccp
View File

@ -202,7 +202,8 @@ static void thread_invoke (unsigned target, unsigned protected_data, Capability
value = &thread->sp
break
case CAP_THREAD_INFO_FLAGS:
data[3] &= ~THREAD_FLAG_PRIV
// It is not possible to set the PRIV flag, but it can be reset.
data[2] &= ~THREAD_FLAG_PRIV
value = &thread->flags
if data[3] & ~THREAD_FLAG_USER:
unsigned v = (*value & data[3]) | (data[2] & data[3])
@ -233,7 +234,7 @@ static void thread_invoke (unsigned target, unsigned protected_data, Capability
default:
break
static void page_invoke (unsigned target, unsigned protected_data, Capability *cap, unsigned request, unsigned data):
static void page_invoke (unsigned target, unsigned protected_data, Capability *cap, bool copy, unsigned request, unsigned data):
Page *page
Cappage *cappage
if (target & CAPTYPE_MASK) == CAPTYPE_PAGE:
@ -246,7 +247,8 @@ static void page_invoke (unsigned target, unsigned protected_data, Capability *c
case CAP_PAGE_MAP:
if !page:
return
// TODO
page->address_space->map (page, data, target & CAP_PAGE_WRITE)
break
case CAP_PAGE_SHARE:
// TODO
case CAP_PAGE_SHARE_COW:
@ -254,9 +256,13 @@ static void page_invoke (unsigned target, unsigned protected_data, Capability *c
case CAP_PAGE_FORGET:
// TODO
case CAP_CAPPAGE_SET:
if !cappage:
if !cappage || data >= CAPPAGE_SIZE || !(target & CAP_PAGE_WRITE):
return
// TODO
Capability *c = &cappage->page[data]
c->invalidate ()
// clone_capability needs a Memory, but doesn't use it when storage is provided.
top_memory.clone_capability (cap, copy, c)
break
default:
break
@ -315,13 +321,13 @@ static bool kernel_invoke (unsigned target, unsigned protected_data, unsigned d[
thread_invoke (target, protected_data, c[1], d)
break
case CAPTYPE_PAGE:
page_invoke (target, protected_data, c[1], d[0], d[1])
page_invoke (target, protected_data, c[1], copy[1], d[0], d[1])
break
case CAPTYPE_CAPABILITY:
capability_invoke (target, protected_data, c[1], d[0], d[1])
break
case CAPTYPE_CAPPAGE:
page_invoke (target, protected_data, c[1], d[0], d[1])
page_invoke (target, protected_data, c[1], copy[1], d[0], d[1])
break
default:
panic (0x99337744, "invalid capability type invoked")