lk/linux-kernel-test
1
0
Fork 0
Code Issues Pull Requests Releases Wiki Activity

x86, 32-bit: also use cpuinfo_x86's x86_{phys,virt}_bits members

Browse Source 
Impact: 32/64-bit consolidation

In a first step, this allows fixing phys_addr_valid() for PAE (which
until now reported all addresses to be valid). Subsequently, this will
also allow simplifying some MTRR handling code.

Signed-off-by: Jan Beulich <jbeulich@novell.com>
LKML-Reference: <49B9101E.76E4.0078.0@novell.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
This commit is contained in:
Jan Beulich
2009-03-12 12:37:34 +00:00
committed by Ingo Molnar
parent 46d50c98d9
commit 13c6c53282
4 changed files with 25 additions and 11 deletions
Download Patch File Download Diff File Expand all files Collapse all files

5
arch/x86/kernel/cpu/intel.c
View File

@ -54,6 +54,11 @@ static void __cpuinit early_init_intel(struct cpuinfo_x86 *c)
c->x86_cache_alignment = 128;
#endif
/* CPUID workaround for 0F33/0F34 CPU */
if (c->x86 == 0xF && c->x86_model == 0x3
&& (c->x86_mask == 0x3 || c->x86_mask == 0x4))
c->x86_phys_bits = 36;
/*
* c->x86_power is 8000_0007 edx. Bit 8 is TSC runs at constant rate
* with P/T states and does not stop in deep C-states