d/freebsd-skq
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity

Don't break identity mapping set up for ACPI resume path.

Browse Source 
With this change, BSP processor context seems to be recovered.
This commit is contained in:
takawata 2008-04-10 18:38:31 +00:00
parent ec3cc8a115
commit 0bb87baefa
1 changed files with 5 additions and 2 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

7
sys/i386/i386/mp_machdep.c
View File

@ -718,6 +718,8 @@ assign_cpu_ids(void)
/*
* start each AP in our list
*/
/* Lowest 1MB is already mapped: don't touch*/
#define TMPMAP_START 1
static int
start_all_aps(void)
{
@ -742,8 +744,9 @@ start_all_aps(void)
/* set up temporary P==V mapping for AP boot */
/* XXX this is a hack, we should boot the AP on its own stack/PTD */
kptbase = (uintptr_t)(void *)KPTphys;
for (i = 0; i < NKPT; i++)
for (i = TMPMAP_START; i < NKPT; i++)
PTD[i] = (pd_entry_t)(PG_V | PG_RW |
((kptbase + i * PAGE_SIZE) & PG_FRAME));
invltlb();
@ -793,7 +796,7 @@ start_all_aps(void)
#endif
/* Undo V==P hack from above */
for (i = 0; i < NKPT; i++)
for (i = TMPMAP_START; i < NKPT; i++)
PTD[i] = 0;
pmap_invalidate_range(kernel_pmap, 0, NKPT * NBPDR - 1);