From: Deepak Gupta <debug@rivosinc.com>
To: opensbi@lists.infradead.org
Subject: [PATCH v3 2/4] lib: sbi: Zicfilp/Zicfiss detection and elp cfi state reflect back in status
Date: Thu, 22 Aug 2024 11:14:10 -0700 [thread overview]
Message-ID: <Zsd/8kP6sJ4vGWiY@debug.ba.rivosinc.com> (raw)
In-Reply-To: <20240822174828.4031332-3-debug@rivosinc.com>
On Thu, Aug 22, 2024 at 10:48:26AM -0700, Deepak Gupta wrote:
>This patch adds support for zicfilp / zicfiss detection in sbi_hart.c
>If zicfilp and zicfiss are detected, this patch turns on menvcfg.LPE and
>menvcfg.SSE
Note to self.
Comment needs fixup. Turn on of LPE and SSE is via FWFT
>
>Zicfilp records status of hart's ELP state in *status csr. Missing landing pad
>sets MPELP in mstatus. When SBI is redirecting back to S/VS/HS, SPELP is
>set in sstatus/vsstatus.
>
>Signed-off-by: Deepak Gupta <debug@rivosinc.com>
>---
next prev parent reply other threads:[~2024-08-22 18:14 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2024-08-22 17:48 [PATCH v3 0/4] zicfilp and zicfiss support in opensbi Deepak Gupta
2024-08-22 17:48 ` [PATCH v3 1/4] include: adding support for Zicfilp / Zicfiss encodings Deepak Gupta
2024-08-22 17:48 ` [PATCH v3 2/4] lib: sbi: Zicfilp/Zicfiss detection and elp cfi state reflect back in status Deepak Gupta
2024-08-22 18:14 ` Deepak Gupta [this message]
2024-08-22 17:48 ` [PATCH v3 3/4] lib: sbi: sw check exception delegation Deepak Gupta
2024-08-22 17:48 ` [PATCH v3 4/4] lib: sbi: fwft: implement landing pad and shadow stack fwft interface Deepak Gupta
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