New patch to review for serialice: 0de2769 Make the CPU microcode filter generic(not CPU model specific).

[Denis Carikli]

Denis Carikli ([e-mail]) just uploaded a new patch set to gerrit, which you can find at http://review.coreboot.org/1948

-gerrit

commit 0de27696025d59463d660eb78fc68956a1190525
Author: Denis 'GNUtoo' Carikli 
Date:   Fri Nov 30 12:35:51 2012 +0100

Make the CPU microcode filter generic(not CPU model specific).

The microcode updating filter can be used this way:
    For AMD:
    --------
    In your mainboard file add something like that:
      microcode_patchlevel_eax = 0x010000b7

function do_mainboard_setup()
        [...]
        enable_hook(cpumsr_hooks, filter_amd_microcode)
      end

0x010000b7 is what corresponds to the microcode patch level.

For Intel:
    ----------
    In your mainboard file add something like that:
      microcode_patchlevel_edx = 0xc7

function do_mainboard_setup()
        [...]
        enable_hook(cpumsr_hooks, filter_intel_microcode)
      end

Change-Id: I370b80a341820ab070f97cc578eb43d5aca192ad
    Signed-off-by: Denis 'GNUtoo' Carikli 
---
 SerialICE/simba/cpu.lua | 7 +++++--
 1 file changed, 5 insertions(+), 2 deletions(-)

diff --git a/SerialICE/simba/cpu.lua b/SerialICE/simba/cpu.lua
index 40f21a6..bd80d0e 100644
--- a/SerialICE/simba/cpu.lua
+++ b/SerialICE/simba/cpu.lua
@@ -57,6 +57,9 @@ filter_cpumsr_fallback = {
 -- **********************************************************
 -- CPUID filters

+microcode_patchlevel_eax = 0
+microcode_patchlevel_edx = 0
+
 function cpuid_pre(f, action)
    return handle_action(f, action)
 end
@@ -116,7 +119,7 @@ end
 -- Fakes microcode revision of my 0x6f6 Core 2 Duo Mobile
 function intel_microcode_post(f, action)
    if action.rin.ecx == 0x8b then
-		action.rout.edx = 0xc7
+		action.rout.edx = microcode_patchlevel_edx
    	action.rout.eax = 0
    	return fake_action(f, action, 0)
    end
@@ -145,7 +148,7 @@ end
 -- Fakes microcode revision.
 function amd_microcode_post(f, action)
         if action.rin.ecx == 0x8b then
-                action.rout.eax = 0x010000b7
+                action.rout.eax = microcode_patchlevel_eax
                 return fake_action(f, action, 0)
         end
         return skip_filter(f, action)