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[109.243.67.101]) by smtp.gmail.com with ESMTPSA id ffacd0b85a97d-43796a6c1bfsm56991068f8f.13.2026.02.20.08.19.30 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Fri, 20 Feb 2026 08:19:31 -0800 (PST) X-Outflank-Mailman: Message body and most headers restored to incoming version X-BeenThere: xen-devel@lists.xenproject.org List-Id: Xen developer discussion List-Unsubscribe: , List-Post: List-Help: List-Subscribe: , Errors-To: xen-devel-bounces@lists.xenproject.org Precedence: list Sender: "Xen-devel" X-Inumbo-ID: f079f1ce-0e77-11f1-b164-2bf370ae4941 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20230601; t=1771604372; x=1772209172; darn=lists.xenproject.org; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:from:to:cc:subject:date :message-id:reply-to; bh=5GY4TsUHAUh5mXYz+TDKp1K01nWPWnDSPZpe5v/E8oY=; b=LlE+dgt4BZzmbfveMoQNfmHAMAV2vnqMHXOL7k2C6bd5M89vzB4FQePgenAJadewhq aBntHrWVF1uNxkgxO6rFGWkXtpc6hP0gbn54jWlV2w6+ZWEZLLMphqN+VcOYSGEfHOZh 6mLnQa7GTKJzCqE2InHL0/x8ycNk0CXjIE0+N0hopmTmvnpNUpfV6zp48EC2QgXQTmu+ X6a9R9akFpalQxlJtMdhKaRAM8FOs5/9mI1W/CanvXEYPC4d545bNbv/x7rCASErym9g +aAzx7JuPkC0cZOjgmYbSwMlKszmhDIKQvW+9gIzXB9nkOfvsAWUa270xPr8zefQbD06 qHLg== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1771604372; x=1772209172; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:x-gm-gg:x-gm-message-state:from :to:cc:subject:date:message-id:reply-to; bh=5GY4TsUHAUh5mXYz+TDKp1K01nWPWnDSPZpe5v/E8oY=; b=ZCm9UrF99y3tuZQ9+ZkQ+U9+o2wJFnceIhg+zs3IoJ0m2tD5VDhMNCjT+bwli56lpX 1ZAhog9q+xVsOKJ1it1GOx0uAE3Dz4DJcWJILbpqWGNyBOkEjxbVL/Sgd7cknYex9KfH g8jHBt05RKNf2Hwo2fFAmHOnh7/Z7g7uALu8DX2Re0w+0FE95YRSfxGfdTrj+j0QrSfK SDISc3AAsPUckHMLpcSmuIpQZ7PHmpqWwU95X2vb0T5qZx+2NPXtbnKpkcjYGYSLLY1O lJTiyXVvKe2/0O4T73LTWGW+LXQMdItPKA+rOL6+Fwsrm8ThprboUyJ0c4f5eBI371EA 34Wg== X-Gm-Message-State: AOJu0YygTMeVQrNYYE/IFENnK1Yf/pDjda5iBErKMBMvn2eInFtDQVZM 6bzNw1QNfqVWRCkSh4/9pzwQK4sxmLqNRKTlytWUpG4K1QIk20MCvaHqTDLM2Q== X-Gm-Gg: AZuq6aK09UFcT0o71iFCftqyaKz3wOGiwk+hoPZ0gAdnmJcKhlltmctXVB+aMlD8wIu 11JSFei/BgGUVKV0IDaQei7WyMdPSlafM23PJKoyAlfSA4iAI7OO8FaoV0Khkd0kdIrHqLHd3jC lQlJXi4Mq9TEMv3iDQ438fNRdFCseIYq2gsXv+PQOkIqcD/Fl6jHZkSQdjTaFhq9fox++Zz2MjN mMzwfRCO737lJG/rsAmNAqahIG3k8U6rMsKL7adQzzh4BGwrR+dEsEs+LVgmzFzOzCzpU2zy5ur 5xa+tRYn2Zmdu6KngGcbE+p+YtYOadTIBEXpVJBsB9Zp6BdjuCdr3lt4dtcfigRLz8bRBkcrOaQ XdpJqq2WKxTMseEbsjqyPTLNrhVOaBkIpeRVGTP5MH9dht52AftVuZbKajW+t2Huk+ooIbFfON/ +ORBf7M0BGtGDxgfXiWmy46WHeEINgD3j9mky/mk3ajlA966TMgXDhVmCOxCW4Q2oYew== X-Received: by 2002:a05:600c:820a:b0:483:709e:f22d with SMTP id 5b1f17b1804b1-483a96379c1mr561955e9.27.1771604371507; Fri, 20 Feb 2026 08:19:31 -0800 (PST) From: Oleksii Kurochko To: xen-devel@lists.xenproject.org Cc: Romain Caritey , Oleksii Kurochko , Alistair Francis , Connor Davis , Andrew Cooper , Anthony PERARD , Michal Orzel , Jan Beulich , Julien Grall , =?UTF-8?q?Roger=20Pau=20Monn=C3=A9?= , Stefano Stabellini Subject: [PATCH v5 12/14] xen/riscv: handle hypervisor timer interrupts Date: Fri, 20 Feb 2026 17:19:07 +0100 Message-ID: <9a17019c5668935afba1f7d932a3ad8a413e2919.1771590794.git.oleksii.kurochko@gmail.com> X-Mailer: git-send-email 2.53.0 In-Reply-To: References: MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable X-ZohoMail-DKIM: pass (identity @gmail.com) X-ZM-MESSAGEID: 1771604392917158500 Content-Type: text/plain; charset="utf-8" Introduce timer_interrupt() to process IRQ_S_TIMER interrupts. The handler disables further timer interrupts by clearing SIE.STIE and raises TIMER_SOFTIRQ so the generic timer subsystem can perform its processing. Update do_trap() to dispatch IRQ_S_TIMER to this new handler. Signed-off-by: Oleksii Kurochko Acked-by: Jan Beulich --- Changes in v4-v5: - Nothing changed. Only rebase. --- Changes in v3: - add Acked-by: Jan Beulich . --- Changes in v2: - Drop cause argument of timer_interrupt() as it isn't used inside the function and anyway it is pretty clear what is the cause inside timer_interrupt(). --- xen/arch/riscv/traps.c | 14 ++++++++++++++ 1 file changed, 14 insertions(+) diff --git a/xen/arch/riscv/traps.c b/xen/arch/riscv/traps.c index 244264c92a79..326f2be62823 100644 --- a/xen/arch/riscv/traps.c +++ b/xen/arch/riscv/traps.c @@ -10,6 +10,7 @@ #include #include #include +#include =20 #include #include @@ -180,6 +181,15 @@ static void check_for_pcpu_work(void) p2m_handle_vmenter(); } =20 +static void timer_interrupt(void) +{ + /* Disable the timer to avoid more interrupts */ + csr_clear(CSR_SIE, BIT(IRQ_S_TIMER, UL)); + + /* Signal the generic timer code to do its work */ + raise_softirq(TIMER_SOFTIRQ); +} + void do_trap(struct cpu_user_regs *cpu_regs) { register_t pc =3D cpu_regs->sepc; @@ -221,6 +231,10 @@ void do_trap(struct cpu_user_regs *cpu_regs) intc_handle_external_irqs(cpu_regs); break; =20 + case IRQ_S_TIMER: + timer_interrupt(); + break; + default: intr_handled =3D false; break; --=20 2.53.0