On 2024/2/27 下午6:19, WANG Xuerui wrote:
On 2/27/24 18:12, maobibo wrote:
On 2024/2/27 下午5:10, WANG Xuerui wrote:
On 2/27/24 11:14, maobibo wrote:
On 2024/2/27 上午4:02, Jiaxun Yang wrote:
在2024年2月26日二月 上午8:04，maobibo写道：
On 2024/2/26 下午2:12, Huacai Chen wrote:
On Mon, Feb 26, 2024 at
Hi, Paolo,
I'm very sorry to bother you, now we have a controversy about how to
query hypervisor features (PV IPI, PV timer and maybe PV spinlock) on
LoongArch, and we have two choices:
1, Get from CPUCFG registers;
2, Get from a hypercall.
CPUCFG are unprivileged registers which can be read
On 2/27/24 18:12, maobibo wrote:
On 2024/2/27 下午5:10, WANG Xuerui wrote:
On 2/27/24 11:14, maobibo wrote:
On 2024/2/27 上午4:02, Jiaxun Yang wrote:
在2024年2月26日二月 上午8:04，maobibo写道：
On 2024/2/26 下午2:12, Huacai Chen wrote:
On Mon, Feb 26, 2024 at 10:04 AM maobibo wrote:
On 2024/2/24
On 2024/2/27 下午5:10, WANG Xuerui wrote:
On 2/27/24 11:14, maobibo wrote:
On 2024/2/27 上午4:02, Jiaxun Yang wrote:
在2024年2月26日二月 上午8:04，maobibo写道：
On 2024/2/26 下午2:12, Huacai Chen wrote:
On Mon, Feb 26, 2024 at 10:04 AM maobibo wrote:
On 2024/2/24 下午5:13, Huacai Chen wrote:
Hi,
On 2024/2/27 下午5:05, Xi Ruoyao wrote:
On Tue, 2024-02-27 at 15:09 +0800, maobibo wrote:
It is difficult to find an area unused by HW for CSR method since the
small CSR ID range.
We may use IOCSR instead. In kernel/cpu-probe.c there are already some
IOCSR reads.
yes, IOCSR can be used
On 2/27/24 11:14, maobibo wrote:
On 2024/2/27 上午4:02, Jiaxun Yang wrote:
在2024年2月26日二月 上午8:04，maobibo写道：
On 2024/2/26 下午2:12, Huacai Chen wrote:
On Mon, Feb 26, 2024 at 10:04 AM maobibo wrote:
On 2024/2/24 下午5:13, Huacai Chen wrote:
Hi, Bibo,
On Thu, Feb 22, 2024 at 11:28 AM Bibo
On Tue, 2024-02-27 at 15:09 +0800, maobibo wrote:
> It is difficult to find an area unused by HW for CSR method since the
> small CSR ID range.
We may use IOCSR instead. In kernel/cpu-probe.c there are already some
IOCSR reads.
> It is difficult to find an area unused by HW for CSR method
On 2024/2/27 下午1:23, Jiaxun Yang wrote:
在2024年2月27日二月 上午3:14，maobibo写道：
On 2024/2/27 上午4:02, Jiaxun Yang wrote:
在2024年2月26日二月 上午8:04，maobibo写道：
On 2024/2/26 下午2:12, Huacai Chen wrote:
On Mon, Feb 26, 2024 at 10:04 AM maobibo wrote:
On 2024/2/24 下午5:13, Huacai Chen wrote:
Hi,
在2024年2月27日二月 上午3:14，maobibo写道：
> On 2024/2/27 上午4:02, Jiaxun Yang wrote:
>>
>>
>> 在2024年2月26日二月 上午8:04，maobibo写道：
>>> On 2024/2/26 下午2:12, Huacai Chen wrote:
On Mon, Feb 26, 2024 at 10:04 AM maobibo wrote:
>
>
>
> On 2024/2/24 下午5:13, Huacai Chen wrote:
>> Hi, Bibo,
On 2024/2/27 上午4:02, Jiaxun Yang wrote:
在2024年2月26日二月 上午8:04，maobibo写道：
On 2024/2/26 下午2:12, Huacai Chen wrote:
On Mon, Feb 26, 2024 at 10:04 AM maobibo wrote:
On 2024/2/24 下午5:13, Huacai Chen wrote:
Hi, Bibo,
On Thu, Feb 22, 2024 at 11:28 AM Bibo Mao wrote:
Instruction cpucfg
在2024年2月26日二月 上午8:04，maobibo写道：
> On 2024/2/26 下午2:12, Huacai Chen wrote:
>> On Mon, Feb 26, 2024 at 10:04 AM maobibo wrote:
>>>
>>>
>>>
>>> On 2024/2/24 下午5:13, Huacai Chen wrote:
Hi, Bibo,
On Thu, Feb 22, 2024 at 11:28 AM Bibo Mao wrote:
>
> Instruction cpucfg can be
On 2/26/24 16:00, maobibo wrote:
On 2024/2/26 下午1:25, WANG Xuerui wrote:
Hi,
On 2/26/24 10:04, maobibo wrote:
On 2024/2/24 下午5:13, Huacai Chen wrote:
Hi, Bibo,
On Thu, Feb 22, 2024 at 11:28 AM Bibo Mao wrote:
Instruction cpucfg can be used to get processor features. And there
is trap
On 2024/2/26 下午2:12, Huacai Chen wrote:
On Mon, Feb 26, 2024 at 10:04 AM maobibo wrote:
On 2024/2/24 下午5:13, Huacai Chen wrote:
Hi, Bibo,
On Thu, Feb 22, 2024 at 11:28 AM Bibo Mao wrote:
Instruction cpucfg can be used to get processor features. And there
is trap exception when it is
On 2024/2/26 下午1:25, WANG Xuerui wrote:
Hi,
On 2/26/24 10:04, maobibo wrote:
On 2024/2/24 下午5:13, Huacai Chen wrote:
Hi, Bibo,
On Thu, Feb 22, 2024 at 11:28 AM Bibo Mao wrote:
Instruction cpucfg can be used to get processor features. And there
is trap exception when it is executed in
On Mon, Feb 26, 2024 at 10:04 AM maobibo wrote:
>
>
>
> On 2024/2/24 下午5:13, Huacai Chen wrote:
> > Hi, Bibo,
> >
> > On Thu, Feb 22, 2024 at 11:28 AM Bibo Mao wrote:
> >>
> >> Instruction cpucfg can be used to get processor features. And there
> >> is trap exception when it is executed in VM
Hi,
On 2/26/24 10:04, maobibo wrote:
On 2024/2/24 下午5:13, Huacai Chen wrote:
Hi, Bibo,
On Thu, Feb 22, 2024 at 11:28 AM Bibo Mao wrote:
Instruction cpucfg can be used to get processor features. And there
is trap exception when it is executed in VM mode, and also it is
to provide cpu
On 2024/2/24 下午5:13, Huacai Chen wrote:
Hi, Bibo,
On Thu, Feb 22, 2024 at 11:28 AM Bibo Mao wrote:
Instruction cpucfg can be used to get processor features. And there
is trap exception when it is executed in VM mode, and also it is
to provide cpu features to VM. On real hardware cpucfg
On 2024/2/24 下午5:13, Huacai Chen wrote:
Hi, Bibo,
On Thu, Feb 22, 2024 at 11:28 AM Bibo Mao wrote:
Instruction cpucfg can be used to get processor features. And there
is trap exception when it is executed in VM mode, and also it is
to provide cpu features to VM. On real hardware cpucfg
Hi, Bibo,
On Thu, Feb 22, 2024 at 11:28 AM Bibo Mao wrote:
>
> Instruction cpucfg can be used to get processor features. And there
> is trap exception when it is executed in VM mode, and also it is
> to provide cpu features to VM. On real hardware cpucfg area 0 - 20
> is used. Here one
Instruction cpucfg can be used to get processor features. And there
is trap exception when it is executed in VM mode, and also it is
to provide cpu features to VM. On real hardware cpucfg area 0 - 20
is used. Here one specified area 0x4000 -- 0x40ff is used
for KVM hypervisor to privide
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