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From: Jose Martins <josemartins90@gmail.com>
To: Alistair Francis <alistair23@gmail.com>
Cc: Alistair Francis <alistair.francis@wdc.com>,
	"open list:RISC-V" <qemu-riscv@nongnu.org>,
	"qemu-devel@nongnu.org Developers" <qemu-devel@nongnu.org>
Subject: Re: [PATCH 1/1] target/riscv: fix VS interrupts forwarding to HS
Date: Thu, 30 Apr 2020 22:47:53 +0100	[thread overview]
Message-ID: <CAC41xo2-knUMRVALdftzu4cNz5u5UmBf1aK=mAt9YKzvOcCjpg@mail.gmail.com> (raw)
In-Reply-To: <CAKmqyKOnpJQUHVnzGVBjPkib-Z1vfdWqLx1HmfbGascFFG4DVQ@mail.gmail.com>

> I'm not sure HS is a higher privilege mode.
>
> HS is privilege encoding 1, which is the same as VS (VU is obviously lower).

I just checked the spec and it doesn't actually, explicitly state that
HS is a higher-privilege mode than VS. I thought this was something
implicit, but you might be right. I'll try to reach out to the spec
authors to clarify this.

Jose


WARNING: multiple messages have this Message-ID (diff)
From: Jose Martins <josemartins90@gmail.com>
To: Alistair Francis <alistair23@gmail.com>
Cc: "open list:RISC-V" <qemu-riscv@nongnu.org>,
	Alistair Francis <alistair.francis@wdc.com>,
	 "qemu-devel@nongnu.org Developers" <qemu-devel@nongnu.org>
Subject: Re: [PATCH 1/1] target/riscv: fix VS interrupts forwarding to HS
Date: Thu, 30 Apr 2020 22:47:53 +0100	[thread overview]
Message-ID: <CAC41xo2-knUMRVALdftzu4cNz5u5UmBf1aK=mAt9YKzvOcCjpg@mail.gmail.com> (raw)
In-Reply-To: <CAKmqyKOnpJQUHVnzGVBjPkib-Z1vfdWqLx1HmfbGascFFG4DVQ@mail.gmail.com>

> I'm not sure HS is a higher privilege mode.
>
> HS is privilege encoding 1, which is the same as VS (VU is obviously lower).

I just checked the spec and it doesn't actually, explicitly state that
HS is a higher-privilege mode than VS. I thought this was something
implicit, but you might be right. I'll try to reach out to the spec
authors to clarify this.

Jose


  reply	other threads:[~2020-04-30 21:49 UTC|newest]

Thread overview: 18+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-04-18 18:01 [PATCH 1/1] target/riscv: fix VS interrupts forwarding to HS Jose Martins
2020-04-18 18:01 ` Jose Martins
2020-04-27 21:40 ` Alistair Francis
2020-04-27 21:40   ` Alistair Francis
2020-04-29 16:06   ` Jose Martins
2020-04-29 16:06     ` Jose Martins
2020-04-29 18:43     ` Alistair Francis
2020-04-29 18:43       ` Alistair Francis
2020-04-29 21:08       ` Jose Martins
2020-04-29 21:08         ` Jose Martins
2020-04-30 19:33         ` Alistair Francis
2020-04-30 19:33           ` Alistair Francis
2020-04-30 21:47           ` Jose Martins [this message]
2020-04-30 21:47             ` Jose Martins
2020-05-01 18:56             ` Jose Martins
2020-05-01 18:56               ` Jose Martins
2020-05-05 19:54               ` Alistair Francis
2020-05-05 19:54                 ` Alistair Francis

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