diff options
| author | jhb <jhb@FreeBSD.org> | 2014-06-27 17:22:18 +0000 |
|---|---|---|
| committer | jhb <jhb@FreeBSD.org> | 2014-06-27 17:22:18 +0000 |
| commit | bdcad19a9af9c3d984703dbaf24fc05b1ec71bc5 (patch) | |
| tree | 7e9e2c80bfc23e779d3f31084afd22dd5d26f660 /sys/i386 | |
| parent | 79ef481e2b33a1c7f8d214041fe5b51b47d6e9f9 (diff) | |
| download | FreeBSD-src-bdcad19a9af9c3d984703dbaf24fc05b1ec71bc5.zip FreeBSD-src-bdcad19a9af9c3d984703dbaf24fc05b1ec71bc5.tar.gz | |
MFC 261781:
Don't waste a page of KVA for the boot-time memory test on x86. For amd64,
reuse the first page of the crashdumpmap as CMAP1/CADDR1. For i386,
remove CMAP1/CADDR1 entirely and reuse CMAP3/CADDR3 for the memory test.
Diffstat (limited to 'sys/i386')
| -rw-r--r-- | sys/i386/i386/machdep.c | 4 | ||||
| -rw-r--r-- | sys/i386/i386/pmap.c | 8 | ||||
| -rw-r--r-- | sys/i386/include/pmap.h | 4 | ||||
| -rw-r--r-- | sys/i386/xen/pmap.c | 4 |
4 files changed, 9 insertions, 11 deletions
diff --git a/sys/i386/i386/machdep.c b/sys/i386/i386/machdep.c index 2e1785b..9e25cd9 100644 --- a/sys/i386/i386/machdep.c +++ b/sys/i386/i386/machdep.c @@ -2387,7 +2387,7 @@ physmap_done: phys_avail[pa_indx++] = physmap[0]; phys_avail[pa_indx] = physmap[0]; dump_avail[da_indx] = physmap[0]; - pte = CMAP1; + pte = CMAP3; /* * Get dcons buffer address @@ -2409,7 +2409,7 @@ physmap_done: end = trunc_page(physmap[i + 1]); for (pa = round_page(physmap[i]); pa < end; pa += PAGE_SIZE) { int tmp, page_bad, full; - int *ptr = (int *)CADDR1; + int *ptr = (int *)CADDR3; full = FALSE; /* diff --git a/sys/i386/i386/pmap.c b/sys/i386/i386/pmap.c index d5f31ec..1f9acfe 100644 --- a/sys/i386/i386/pmap.c +++ b/sys/i386/i386/pmap.c @@ -256,11 +256,10 @@ struct sysmaps { caddr_t CADDR2; }; static struct sysmaps sysmaps_pcpu[MAXCPU]; -pt_entry_t *CMAP1 = 0; -static pt_entry_t *CMAP3; +pt_entry_t *CMAP3; static pd_entry_t *KPTD; -caddr_t CADDR1 = 0, ptvmmap = 0; -static caddr_t CADDR3; +caddr_t ptvmmap = 0; +caddr_t CADDR3; struct msgbuf *msgbufp = 0; /* @@ -434,7 +433,6 @@ pmap_bootstrap(vm_paddr_t firstaddr) SYSMAP(caddr_t, sysmaps->CMAP1, sysmaps->CADDR1, 1) SYSMAP(caddr_t, sysmaps->CMAP2, sysmaps->CADDR2, 1) } - SYSMAP(caddr_t, CMAP1, CADDR1, 1) SYSMAP(caddr_t, CMAP3, CADDR3, 1) /* diff --git a/sys/i386/include/pmap.h b/sys/i386/include/pmap.h index 0303c60..100475c 100644 --- a/sys/i386/include/pmap.h +++ b/sys/i386/include/pmap.h @@ -420,8 +420,8 @@ struct pv_chunk { #ifdef _KERNEL -extern caddr_t CADDR1; -extern pt_entry_t *CMAP1; +extern caddr_t CADDR3; +extern pt_entry_t *CMAP3; extern vm_paddr_t phys_avail[]; extern vm_paddr_t dump_avail[]; extern int pseflag; diff --git a/sys/i386/xen/pmap.c b/sys/i386/xen/pmap.c index 9f3e8bb..fa9bda8 100644 --- a/sys/i386/xen/pmap.c +++ b/sys/i386/xen/pmap.c @@ -249,9 +249,9 @@ struct sysmaps { caddr_t CADDR2; }; static struct sysmaps sysmaps_pcpu[MAXCPU]; -static pt_entry_t *CMAP3; +pt_entry_t *CMAP3; caddr_t ptvmmap = 0; -static caddr_t CADDR3; +caddr_t CADDR3; struct msgbuf *msgbufp = 0; /* |
