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 1
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 from
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 下午
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, Bib
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 an
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 Ma
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 sinc
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, Bibo
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 ca
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 u
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 ex
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 VM
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 mod
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 feature
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 are
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 are
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 specified
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 PV
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