* [PATCH 3/3] Check processor version for broadcast.
@ 2010-11-30 8:15 Jin Dongming
2010-11-30 8:22 ` Huang Ying
0 siblings, 1 reply; 3+ messages in thread
From: Jin Dongming @ 2010-11-30 8:15 UTC (permalink / raw)
To: Avi Kivity, Marcelo Tosatti
Cc: Andi Kleen, Huang Ying, Hidetoshi Seto, Dean Nelson, KVM list
Broadcast MCA signal is not supported by the CPUs whose version is
below 06H_EH.
Signed-off-by: Jin Dongming <jin.dongming@np.css.fujitsu.com>
---
target-i386/helper.c | 13 +++++++++++++
1 files changed, 13 insertions(+), 0 deletions(-)
diff --git a/target-i386/helper.c b/target-i386/helper.c
index 7e07ebd..437290b 100644
--- a/target-i386/helper.c
+++ b/target-i386/helper.c
@@ -1077,10 +1077,23 @@ void cpu_inject_x86_mce(CPUState *cenv, int bank, uint64_t status,
unsigned bank_num = cenv->mcg_cap & 0xff;
CPUState *env;
int flag = 0;
+ int family, model, cpuver = first_cpu->cpuid_version;
if (bank >= bank_num || !(status & MCI_STATUS_VAL))
return;
+ if (broadcast) {
+ family = (cpuver >> 8) & 0x0f;
+ model = ((cpuver >> 12) & 0xf0) + ((cpuver >> 4) & 0x0f);
+
+ if ((family == 6 && model >= 14) || family > 6)
+ broadcast = 1;
+ else {
+ fprintf(stderr, "Current CPU does not support broadcast\n");
+ return;
+ }
+ }
+
if (kvm_enabled()) {
if (broadcast)
flag |= 0x02; /* bit 1: 1(broadcast); 0(not broadcast) */
--
1.7.1.1
^ permalink raw reply related [flat|nested] 3+ messages in thread
* Re: [PATCH 3/3] Check processor version for broadcast.
2010-11-30 8:15 [PATCH 3/3] Check processor version for broadcast Jin Dongming
@ 2010-11-30 8:22 ` Huang Ying
2010-11-30 8:40 ` Jin Dongming
0 siblings, 1 reply; 3+ messages in thread
From: Huang Ying @ 2010-11-30 8:22 UTC (permalink / raw)
To: Jin Dongming
Cc: Avi Kivity, Marcelo Tosatti, Andi Kleen, Hidetoshi Seto,
Dean Nelson, KVM list
Hi, Dongming,
On Tue, 2010-11-30 at 16:15 +0800, Jin Dongming wrote:
> Broadcast MCA signal is not supported by the CPUs whose version is
> below 06H_EH.
>
> Signed-off-by: Jin Dongming <jin.dongming@np.css.fujitsu.com>
> ---
> target-i386/helper.c | 13 +++++++++++++
> 1 files changed, 13 insertions(+), 0 deletions(-)
>
> diff --git a/target-i386/helper.c b/target-i386/helper.c
> index 7e07ebd..437290b 100644
> --- a/target-i386/helper.c
> +++ b/target-i386/helper.c
> @@ -1077,10 +1077,23 @@ void cpu_inject_x86_mce(CPUState *cenv, int bank, uint64_t status,
> unsigned bank_num = cenv->mcg_cap & 0xff;
> CPUState *env;
> int flag = 0;
> + int family, model, cpuver = first_cpu->cpuid_version;
>
> if (bank >= bank_num || !(status & MCI_STATUS_VAL))
> return;
>
> + if (broadcast) {
> + family = (cpuver >> 8) & 0x0f;
> + model = ((cpuver >> 12) & 0xf0) + ((cpuver >> 4) & 0x0f);
> +
> + if ((family == 6 && model >= 14) || family > 6)
> + broadcast = 1;
> + else {
> + fprintf(stderr, "Current CPU does not support broadcast\n");
> + return;
> + }
> + }
> +
> if (kvm_enabled()) {
> if (broadcast)
> flag |= 0x02; /* bit 1: 1(broadcast); 0(not broadcast) */
Why not wrap this into a function? I think it may be used by other
functions too.
Best Regards,
Huang Ying
^ permalink raw reply [flat|nested] 3+ messages in thread
* Re: [PATCH 3/3] Check processor version for broadcast.
2010-11-30 8:22 ` Huang Ying
@ 2010-11-30 8:40 ` Jin Dongming
0 siblings, 0 replies; 3+ messages in thread
From: Jin Dongming @ 2010-11-30 8:40 UTC (permalink / raw)
To: Huang Ying
Cc: Avi Kivity, Marcelo Tosatti, Andi Kleen, Hidetoshi Seto,
Dean Nelson, KVM list
Hi, Huang-san
(2010/11/30 17:22), Huang Ying wrote:
> Hi, Dongming,
>
> On Tue, 2010-11-30 at 16:15 +0800, Jin Dongming wrote:
>> Broadcast MCA signal is not supported by the CPUs whose version is
>> below 06H_EH.
>>
>> Signed-off-by: Jin Dongming <jin.dongming@np.css.fujitsu.com>
>> ---
>> target-i386/helper.c | 13 +++++++++++++
>> 1 files changed, 13 insertions(+), 0 deletions(-)
>>
>> diff --git a/target-i386/helper.c b/target-i386/helper.c
>> index 7e07ebd..437290b 100644
>> --- a/target-i386/helper.c
>> +++ b/target-i386/helper.c
>> @@ -1077,10 +1077,23 @@ void cpu_inject_x86_mce(CPUState *cenv, int bank, uint64_t status,
>> unsigned bank_num = cenv->mcg_cap & 0xff;
>> CPUState *env;
>> int flag = 0;
>> + int family, model, cpuver = first_cpu->cpuid_version;
>>
>> if (bank >= bank_num || !(status & MCI_STATUS_VAL))
>> return;
>>
>> + if (broadcast) {
>> + family = (cpuver >> 8) & 0x0f;
>> + model = ((cpuver >> 12) & 0xf0) + ((cpuver >> 4) & 0x0f);
>> +
>> + if ((family == 6 && model >= 14) || family > 6)
>> + broadcast = 1;
>> + else {
>> + fprintf(stderr, "Current CPU does not support broadcast\n");
>> + return;
>> + }
>> + }
>> +
>> if (kvm_enabled()) {
>> if (broadcast)
>> flag |= 0x02; /* bit 1: 1(broadcast); 0(not broadcast) */
>
> Why not wrap this into a function? I think it may be used by other
> functions too.
I have other patchset for cleanup. So I will do it in that patchset.
Thank you!
Best Regards,
Jin Dongming
>
> Best Regards,
> Huang Ying
>
>
> --
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>
>
^ permalink raw reply [flat|nested] 3+ messages in thread
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2010-11-30 8:15 [PATCH 3/3] Check processor version for broadcast Jin Dongming
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