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Re: [PATCH v3 03/39] xen/riscv: introduce csr_volatile_read64()
- To: Oleksii Kurochko <oleksii.kurochko@xxxxxxxxx>
- From: Baptiste Le Duc <baptiste.le-duc@xxxxxxxxxx>
- Date: Mon, 05 Oct 2026 12:01:55 +0200
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- Cc: xen-devel@xxxxxxxxxxxxxxxxxxxx, Romain Caritey <Romain.Caritey@xxxxxxxxxxxxx>, Baptiste Le Duc <baptiste.le-duc@xxxxxxxxxx>, Zheng Zhang <zhangzheng@xxxxxxxxxxx>, Alistair Francis <alistair.francis@xxxxxxx>, Connor Davis <connojdavis@xxxxxxxxx>, Andrew Cooper <andrew.cooper3@xxxxxxxxxx>, Anthony PERARD <anthony.perard@xxxxxxxxxx>, Michal Orzel <michal.orzel@xxxxxxx>, Jan Beulich <jbeulich@xxxxxxxx>, Julien Grall <julien@xxxxxxx>, Roger Pau Monné <roger@xxxxxxxxxxxxxx>, Stefano Stabellini <sstabellini@xxxxxxxxxx>
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- List-id: Xen developer discussion <xen-devel.lists.xenproject.org>
> On RV32 a 64-bit CSR is accessed as two halves, <csr> and <csr>H. Reading
As far as I can tell RV32 can't currently be selected (RISCV_64 is def_bool y,
no RISCV_32 in Kconfig), so this path can't even be build-tested. Is the retry
loop really needed now, or a least in this patch series?
--
Baptiste Le Duc <baptiste.le-duc@xxxxxxxxxx>
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