diff options
| author | Duncan Laurie <dlaurie@chromium.org> | 2012-06-23 15:22:43 -0700 |
|---|---|---|
| committer | Ronald G. Minnich <rminnich@gmail.com> | 2012-07-24 23:49:28 +0200 |
| commit | 51cb26d92a2ddac8d71fe0e5970ed208110add71 (patch) | |
| tree | d64e41f2ff26f489a17f8f11d4ca3a23680b0658 /src/cpu/x86 | |
| parent | 181bbdd51cb4ec318e8b44c1ca652310bf6abb22 (diff) | |
SMM: Fix state save map for sandybridge and TSEG
There are enough differences that it is worth defining the
proper map for the sandybridge/ivybridge CPUs. The state
save map was not being addressed properly for TSEG and
needs to use the right offset instead of pointing in ASEG.
To do this properly add a required southbridge export to
return the TSEG base and use that where appropriate.
Change-Id: Idad153ed6c07d2633cb3d53eddd433a3df490834
Signed-off-by: Duncan Laurie <dlaurie@chromium.org>
Reviewed-on: http://review.coreboot.org/1309
Tested-by: build bot (Jenkins)
Reviewed-by: Ronald G. Minnich <rminnich@gmail.com>
Diffstat (limited to 'src/cpu/x86')
| -rw-r--r-- | src/cpu/x86/smm/smihandler.c | 20 |
1 files changed, 15 insertions, 5 deletions
diff --git a/src/cpu/x86/smm/smihandler.c b/src/cpu/x86/smm/smihandler.c index bbed0f195e..83ebaf9100 100644 --- a/src/cpu/x86/smm/smihandler.c +++ b/src/cpu/x86/smm/smihandler.c @@ -117,8 +117,14 @@ void smi_handler(u32 smm_revision) { unsigned int node; smm_state_save_area_t state_save; + u32 smm_base = 0xa8000; /* ASEG */ -#if !CONFIG_SMM_TSEG +#if CONFIG_SMM_TSEG + /* Update global variable TSEG base */ + if (!smi_get_tseg_base()) + return; + smm_base = smi_get_tseg_base() + 0x8000; +#else /* Are we ok to execute the handler? */ if (!smi_obtain_lock()) { /* For security reasons we don't release the other CPUs @@ -146,18 +152,22 @@ void smi_handler(u32 smm_revision) case 0x00030007: state_save.type = LEGACY; state_save.legacy_state_save = (legacy_smm_state_save_area_t *) - (0xa8000 + 0x7e00 - (node * 0x400)); + (smm_base + 0x7e00 - (node * 0x400)); break; case 0x00030100: - case 0x00030101: /* SandyBridge */ state_save.type = EM64T; state_save.em64t_state_save = (em64t_smm_state_save_area_t *) - (0xa8000 + 0x7d00 - (node * 0x400)); + (smm_base + 0x7d00 - (node * 0x400)); + case 0x00030101: /* SandyBridge/IvyBridge */ + state_save.type = EM64T101; + state_save.em64t101_state_save = + (em64t101_smm_state_save_area_t *) + (smm_base + 0x7d00 - (node * 0x400)); break; case 0x00030064: state_save.type = AMD64; state_save.amd64_state_save = (amd64_smm_state_save_area_t *) - (0xa8000 + 0x7e00 - (node * 0x400)); + (smm_base + 0x7e00 - (node * 0x400)); break; default: printk(BIOS_DEBUG, "smm_revision: 0x%08x\n", smm_revision); |