From: Andrew Jones <ajones@ventanamicro.com>
To: Atish Patra <atishp@rivosinc.com>
Cc: linux-kernel@vger.kernel.org, Anup Patel <anup@brainfault.org>,
Albert Ou <aou@eecs.berkeley.edu>,
Atish Patra <atishp@atishpatra.org>, Guo Ren <guoren@kernel.org>,
Heiko Stuebner <heiko@sntech.de>,
kvm-riscv@lists.infradead.org, kvm@vger.kernel.org,
linux-riscv@lists.infradead.org,
Mark Rutland <mark.rutland@arm.com>,
Palmer Dabbelt <palmer@dabbelt.com>,
Paul Walmsley <paul.walmsley@sifive.com>,
Will Deacon <will@kernel.org>
Subject: Re: [PATCH v5 13/14] RISC-V: KVM: Support firmware events
Date: Mon, 6 Feb 2023 13:04:45 +0100 [thread overview]
Message-ID: <20230206120445.6tlsvy5fsawn475v@orel> (raw)
In-Reply-To: <20230205011515.1284674-14-atishp@rivosinc.com>
On Sat, Feb 04, 2023 at 05:15:14PM -0800, Atish Patra wrote:
> SBI PMU extension defines a set of firmware events which can provide
> useful information to guests about the number of SBI calls. As
> hypervisor implements the SBI PMU extension, these firmware events
> correspond to ecall invocations between VS->HS mode. All other firmware
> events will always report zero if monitored as KVM doesn't implement them.
>
> This patch adds all the infrastructure required to support firmware
> events.
>
> Reviewed-by: Anup Patel <anup@brainfault.org>
> Signed-off-by: Atish Patra <atishp@rivosinc.com>
> ---
> arch/riscv/include/asm/kvm_vcpu_pmu.h | 17 ++++
> arch/riscv/kvm/vcpu_pmu.c | 141 ++++++++++++++++++++------
> 2 files changed, 125 insertions(+), 33 deletions(-)
>
Reviewed-by: Andrew Jones <ajones@ventanamicro.com>
Thanks,
drew
next prev parent reply other threads:[~2023-02-06 12:04 UTC|newest]
Thread overview: 25+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-02-05 1:15 [PATCH v5 00/14] KVM perf support Atish Patra
2023-02-05 1:15 ` [PATCH v5 01/14] perf: RISC-V: Define helper functions expose hpm counter width and count Atish Patra
2023-02-05 1:15 ` [PATCH v5 02/14] perf: RISC-V: Improve privilege mode filtering for perf Atish Patra
2023-02-05 1:15 ` [PATCH v5 03/14] RISC-V: Improve SBI PMU extension related definitions Atish Patra
2023-02-05 1:15 ` [PATCH v5 04/14] RISC-V: KVM: Define a probe function for SBI extension data structures Atish Patra
2023-02-05 1:15 ` [PATCH v5 05/14] RISC-V: KVM: Return correct code for hsm stop function Atish Patra
2023-02-05 1:15 ` [PATCH v5 06/14] RISC-V: KVM: Modify SBI extension handler to return SBI error code Atish Patra
2023-02-06 10:27 ` Andrew Jones
2023-02-06 17:08 ` Anup Patel
2023-02-05 1:15 ` [PATCH v5 07/14] RISC-V: KVM: Add skeleton support for perf Atish Patra
2023-02-06 11:45 ` Andrew Jones
2023-02-05 1:15 ` [PATCH v5 08/14] RISC-V: KVM: Add SBI PMU extension support Atish Patra
2023-02-05 10:30 ` Conor Dooley
2023-02-07 6:10 ` Atish Patra
2023-02-07 6:24 ` Conor Dooley
2023-02-06 11:50 ` Andrew Jones
2023-02-05 1:15 ` [PATCH v5 09/14] RISC-V: KVM: Make PMU functionality depend on Sscofpmf Atish Patra
2023-02-05 1:15 ` [PATCH v5 10/14] RISC-V: KVM: Disable all hpmcounter access for VS/VU mode Atish Patra
2023-02-05 1:15 ` [PATCH v5 11/14] RISC-V: KVM: Implement trap & emulate for hpmcounters Atish Patra
2023-02-06 11:54 ` Andrew Jones
2023-02-05 1:15 ` [PATCH v5 12/14] RISC-V: KVM: Implement perf support without sampling Atish Patra
2023-02-05 1:15 ` [PATCH v5 13/14] RISC-V: KVM: Support firmware events Atish Patra
2023-02-06 12:04 ` Andrew Jones [this message]
2023-02-05 1:15 ` [PATCH v5 14/14] RISC-V: KVM: Increment firmware pmu events Atish Patra
2023-02-06 17:10 ` [PATCH v5 00/14] KVM perf support Anup Patel
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