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Re: [PATCH 1/2] riscv-platform-spec: Real-time Clock to server extension
Heinrich Schuchardt <xypron.glpk@...> 於 2021年6月28日 週一 下午4:32寫道:
That's true.
On the server platform, RTC doesn't work alone. It incorporates with BMC to get the time information
Heinrich Schuchardt <xypron.glpk@...> 於 2021年6月28日 週一 下午4:32寫道:
That's true.
On the server platform, RTC doesn't work alone. It incorporates with BMC to get the time information
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By
Abner Chang
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#1117
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Re: [PATCH 1/2] riscv-platform-spec: Real-time Clock to server extension
The way that UEFI reports local time zones is unsatisfactory:
There is an offset to UTC and a daylight savings flag but this does not
allow to derive on which day daylight saving switches (you could
The way that UEFI reports local time zones is unsatisfactory:
There is an offset to UTC and a daylight savings flag but this does not
allow to derive on which day daylight saving switches (you could
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By
Heinrich Schuchardt
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#1116
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Re: [PATCH 2/2] contributors: Add Abner as contributor
Hi Abner,
"," is required before your name here.
Hi Abner,
"," is required before your name here.
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By
Sunil V L
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#1115
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Re: [PATCH 1/2] riscv-platform-spec: Real-time Clock to server extension
Jonathan Behrens <behrensj@...> 於 2021年6月25日 週五 下午11:11寫道:
That depends on how do you implement GetTime/SetTime functions for the platform. You can always not returning
Jonathan Behrens <behrensj@...> 於 2021年6月25日 週五 下午11:11寫道:
That depends on how do you implement GetTime/SetTime functions for the platform. You can always not returning
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By
Abner Chang
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#1114
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[PATCH 2/2] contributors: Add Abner as contributor
From: Abner Chang <abner.chang@...>
Signed-off-by: Abner Chang <renba.chang@...>
Signed-off-by: Abner Chang <abner.chang@...>
---
contributors.adoc | 1 +
1 file changed, 1
From: Abner Chang <abner.chang@...>
Signed-off-by: Abner Chang <renba.chang@...>
Signed-off-by: Abner Chang <abner.chang@...>
---
contributors.adoc | 1 +
1 file changed, 1
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By
Abner Chang
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#1113
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[PATCH 1/2] riscv-platform-spec: Interrupt Controller
From: Abner Chang <abner.chang@...>
Initial version of Interrupt Controller, Software Interrupt,
and Timer Requirements. This patch combines the text sent out
by Kumar and the patch Abner sent
From: Abner Chang <abner.chang@...>
Initial version of Interrupt Controller, Software Interrupt,
and Timer Requirements. This patch combines the text sent out
by Kumar and the patch Abner sent
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By
Abner Chang
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#1112
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Re: [PATCH 1/1] Cache Coherency and ASID Requirements for OS-A platform
OK agreed. We can remove the ASID requirement all together.
Regards
Kumar
OK agreed. We can remove the ASID requirement all together.
Regards
Kumar
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By
Kumar Sankaran
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#1111
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Re: [PATCH 1/1] Cache Coherency and ASID Requirements for OS-A platform
Recent platform discussion about this question concluded the same.
Greg
Recent platform discussion about this question concluded the same.
Greg
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By
Greg Favor
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#1110
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Re: [PATCH 1/1] Cache Coherency and ASID Requirements for OS-A platform
Significant HW cost in TLBs.
My take is we should avoid imposing this requirement altogether. Kernel software needs to support the no-ASID case, anyway, so we aren’t simplifying software by imposing
Significant HW cost in TLBs.
My take is we should avoid imposing this requirement altogether. Kernel software needs to support the no-ASID case, anyway, so we aren’t simplifying software by imposing
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By
Andrew Waterman
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#1109
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Re: [PATCH 1/1] Cache Coherency and ASID Requirements for OS-A platform
Requiring ASID support without specifying the number of bits means that even 1-bit ASIDs would be allowed, even though they'd be essentially useless. That said, I don't have a strong feeling about a
Requiring ASID support without specifying the number of bits means that even 1-bit ASIDs would be allowed, even though they'd be essentially useless. That said, I don't have a strong feeling about a
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By
Jonathan Behrens <behrensj@...>
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#1108
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Re: [PATCH 1/1] Cache Coherency and ASID Requirements for OS-A platform
Hi Jonathan,
Regarding ASID and VMID support, we are mandating those only for the Server Extension within the OS-A platform and not for OS-A platform base.
We could consider a minimum of 12-bits for
Hi Jonathan,
Regarding ASID and VMID support, we are mandating those only for the Server Extension within the OS-A platform and not for OS-A platform base.
We could consider a minimum of 12-bits for
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By
Kumar Sankaran
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#1107
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Next Platform HSC Meeting on Mon Jun 28 2021 8AM PST
Hi All,
The next platform HSC meeting is scheduled on Mon Jun 28th at 8AM PST.
Here are the details:
Agenda and minutes kept on the github
Hi All,
The next platform HSC meeting is scheduled on Mon Jun 28th at 8AM PST.
Here are the details:
Agenda and minutes kept on the github
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By
Kumar Sankaran
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#1106
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Re: [PATCH 1/1] Cache Coherency and ASID Requirements for OS-A platform
Is this supposed to include more detail than just "ASID support" and "VMID support"? Not sure if those are just placeholder section headings for now, but I'd expect to at least see a requirement of
Is this supposed to include more detail than just "ASID support" and "VMID support"? Not sure if those are just placeholder section headings for now, but I'd expect to at least see a requirement of
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By
Jonathan Behrens <behrensj@...>
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#1105
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Re: [PATCH 1/1] Cache Coherency and ASID Requirements for OS-A platform
ARM went through this issue with the variety of CPU designs that people have done (both outside and inside ARM). In particular, as people went to larger and/or more power-efficient L1 caches, they
ARM went through this issue with the variety of CPU designs that people have done (both outside and inside ARM). In particular, as people went to larger and/or more power-efficient L1 caches, they
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By
Greg Favor
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#1104
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Re: [PATCH 1/2] riscv-platform-spec: Real-time Clock to server extension
Any chance that we can ban EFI_UNSPECIFIED_TIMEZONE and/or require that time is always UTC?
Jonathan
Any chance that we can ban EFI_UNSPECIFIED_TIMEZONE and/or require that time is always UTC?
Jonathan
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By
Jonathan Behrens <behrensj@...>
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#1103
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[PATCH 2/2] contributors: Add Abner as contributor
From: Abner Chang <abner.chang@...>
Signed-off-by: Abner Chang <renba.chang@...>
Signed-off-by: Abner Chang <abner.chang@...>
---
contributors.adoc | 1 +
1 file changed, 1
From: Abner Chang <abner.chang@...>
Signed-off-by: Abner Chang <renba.chang@...>
Signed-off-by: Abner Chang <abner.chang@...>
---
contributors.adoc | 1 +
1 file changed, 1
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By
Abner Chang
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#1102
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[PATCH 1/2] riscv-platform-spec: Real-time Clock to server extension
From: Abner Chang <abner.chang@...>
RTC (Real-time Clock)
Real-time clock is the server basic system peripheral to provide the real date/time information for server to manage the system date,
From: Abner Chang <abner.chang@...>
RTC (Real-time Clock)
Real-time clock is the server basic system peripheral to provide the real date/time information for server to manage the system date,
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By
Abner Chang
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#1101
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Re: [PATCH 1/1] Cache Coherency and ASID Requirements for OS-A platform
The intent seems to be that caches shall appear (to software) to be non-aliasing.
Depends on the internal organisation of a VIPT cache (and its size/number of index bits)...
The requirement clearly
The intent seems to be that caches shall appear (to software) to be non-aliasing.
Depends on the internal organisation of a VIPT cache (and its size/number of index bits)...
The requirement clearly
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By
Philipp Tomsich
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#1100
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Re: [PATCH 1/1] Cache Coherency and ASID Requirements for OS-A platform
I agree with Andrew. What does it mean for caches to appear to software
in any particular way? Unless you're talking about something like CMOs,
aren't caches entirely transparent to software?
In
I agree with Andrew. What does it mean for caches to appear to software
in any particular way? Unless you're talking about something like CMOs,
aren't caches entirely transparent to software?
In
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By
Daniel Lustig
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#1099
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Re: [PATCH 1/1] Cache Coherency and ASID Requirements for OS-A platform
Hi Andrew,
Agree with your comment on the RVWMO memory model requirement. Since this requirement is for the OS-A platform, providing an additional level of clarity will help since all implementations
Hi Andrew,
Agree with your comment on the RVWMO memory model requirement. Since this requirement is for the OS-A platform, providing an additional level of clarity will help since all implementations
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By
Kumar Sankaran
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#1098
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