[PATCH v2 12/17] kvm: x86: Drop MCE MSRs write back restrictions

Jan Kiszka
2011-01-03T08:33:45Z

From: Jan Kiszka <jan.kiszka@siemens.com>

There is no need to restrict writing back MCE MSRs to reset or full
state updates as setting their values has no side effects.

Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com>
CC: Huang Ying <ying.huang@intel.com>
---
target-i386/kvm.c | 12 ++++--------
1 files changed, 4 insertions(+), 8 deletions(-)

diff --git a/target-i386/kvm.c b/target-i386/kvm.c
index 664a4a0..ef8f6e6 100644
--- a/target-i386/kvm.c
+++ b/target-i386/kvm.c
@@ -866,14 +866,10 @@ static int kvm_put_msrs(CPUState *env, int level)
if (env->mcg_cap) {
int i;

- if (level == KVM_PUT_RESET_STATE) {
- kvm_msr_entry_set(&msrs[n++], MSR_MCG_STATUS, env->mcg_status);
- } else if (level == KVM_PUT_FULL_STATE) {
- kvm_msr_entry_set(&msrs[n++], MSR_MCG_STATUS, env->mcg_status);
- kvm_msr_entry_set(&msrs[n++], MSR_MCG_CTL, env->mcg_ctl);
- for (i = 0; i < (env->mcg_cap & 0xff) * 4; i++) {
- kvm_msr_entry_set(&msrs[n++], MSR_MC0_CTL + i, env->mce_banks[i]);
- }
+ kvm_msr_entry_set(&msrs[n++], MSR_MCG_STATUS, env->mcg_status);
+ kvm_msr_entry_set(&msrs[n++], MSR_MCG_CTL, env->mcg_ctl);
+ for (i = 0; i < (env->mcg_cap & 0xff) * 4; i++) {
+ kvm_msr_entry_set(&msrs[n++], MSR_MC0_CTL + i, env->mce_banks[i]);
}
}
#endif
--
1.7.1