From: Paolo Bonzini <pbonzini@redhat.com>
Date: Mon, 12 Oct 2015 16:25:40 +0000 (+0200)
Subject: target-i386: allow any alignment for SMBASE
X-Git-Tag: Tizen_Studio_1.3_Release_p2.3.2~121^2~1^2~112^2~12
X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=dd75d4fcb4a82c34d4f466e7fc166162b71ff740;p=sdk%2Femulator%2Fqemu.git

target-i386: allow any alignment for SMBASE

Processors up to the Pentium (says Bochs---I do not have old enough
manuals) require a 32KiB alignment for the SMBASE, but newer processors
do not need that, and Tiano Core will use non-aligned SMBASE values.

Reported-by: Michael D Kinney <michael.d.kinney@intel.com>
Cc: Laszlo Ersek <lersek@redhat.com>
Cc: Jordan Justen <jordan.l.justen@intel.com>
Cc: Eduardo Habkost <ehabkost@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Reviewed-by: Laszlo Ersek <lersek@redhat.com>
Reviewed-by: Eduardo Habkost <ehabkost@redhat.com>
Signed-off-by: Eduardo Habkost <ehabkost@redhat.com>
---

diff --git a/target-i386/smm_helper.c b/target-i386/smm_helper.c
index 02e24b9236..c272a98407 100644
--- a/target-i386/smm_helper.c
+++ b/target-i386/smm_helper.c
@@ -266,7 +266,7 @@ void helper_rsm(CPUX86State *env)
 
     val = x86_ldl_phys(cs, sm_state + 0x7efc); /* revision ID */
     if (val & 0x20000) {
-        env->smbase = x86_ldl_phys(cs, sm_state + 0x7f00) & ~0x7fff;
+        env->smbase = x86_ldl_phys(cs, sm_state + 0x7f00);
     }
 #else
     cpu_x86_update_cr0(env, x86_ldl_phys(cs, sm_state + 0x7ffc));
@@ -319,7 +319,7 @@ void helper_rsm(CPUX86State *env)
 
     val = x86_ldl_phys(cs, sm_state + 0x7efc); /* revision ID */
     if (val & 0x20000) {
-        env->smbase = x86_ldl_phys(cs, sm_state + 0x7ef8) & ~0x7fff;
+        env->smbase = x86_ldl_phys(cs, sm_state + 0x7ef8);
     }
 #endif
     if ((env->hflags2 & HF2_SMM_INSIDE_NMI_MASK) == 0) {